[INFO] fetching crate qcow2 0.1.2...
[INFO] testing qcow2-0.1.2 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate qcow2 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate qcow2 0.1.2 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qcow2 0.1.2
[INFO] finished tweaking crates.io crate qcow2 0.1.2
[INFO] tweaked toml for crates.io crate qcow2 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding linked-hash-map v0.0.9 (latest: v0.5.6)
[INFO] [stderr]       Adding lru-cache v0.0.7 (latest: v0.1.2)
[INFO] [stderr]       Adding positioned-io v0.2.2 (latest: v0.3.3)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded positioned-io v0.2.2
[INFO] [stderr]   Downloaded linked-hash-map v0.0.9
[INFO] [stderr]   Downloaded lru-cache v0.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7f4c97e42cebd82dcd9723a42e3ad71cd8848ed6dd6fc128ffd1d76b5c96f4a
[INFO] running `Command { std: "docker" "start" "-a" "b7f4c97e42cebd82dcd9723a42e3ad71cd8848ed6dd6fc128ffd1d76b5c96f4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7f4c97e42cebd82dcd9723a42e3ad71cd8848ed6dd6fc128ffd1d76b5c96f4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f4c97e42cebd82dcd9723a42e3ad71cd8848ed6dd6fc128ffd1d76b5c96f4a", kill_on_drop: false }`
[INFO] [stdout] b7f4c97e42cebd82dcd9723a42e3ad71cd8848ed6dd6fc128ffd1d76b5c96f4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cbdc9a488b1e2ddf1d4f2b57d6688e9de0f79a8a83cb57972cbf8d69c30386e
[INFO] running `Command { std: "docker" "start" "-a" "9cbdc9a488b1e2ddf1d4f2b57d6688e9de0f79a8a83cb57972cbf8d69c30386e", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked-hash-map v0.0.9
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling positioned-io v0.2.2
[INFO] [stderr]    Compiling lru-cache v0.0.7
[INFO] [stderr]    Compiling qcow2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(io.read_to_end(&mut self.data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     try!(io.read_exact(&mut buf));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |                     let bit = try!(io.read_u8());
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         try!(self.validate_common());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:165:24
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.c.magic = try!(io.read_u32());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:166:26
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.c.version = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:167:38
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.c.backing_file_offset = try!(io.read_u64());
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:168:36
[INFO] [stdout]     |
[INFO] [stdout] 168 |         self.c.backing_file_size = try!(io.read_u32());
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |         self.c.cluster_bits = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.c.size = try!(io.read_u64());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:171:31
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.c.crypt_method = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:172:26
[INFO] [stdout]     |
[INFO] [stdout] 172 |         self.c.l1_size = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:173:34
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.c.l1_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:174:40
[INFO] [stdout]     |
[INFO] [stdout] 174 |         self.c.refcount_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:175:42
[INFO] [stdout]     |
[INFO] [stdout] 175 |         self.c.refcount_table_clusters = try!(io.read_u32());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:176:31
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.c.nb_snapshots = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         self.c.snapshots_offset = try!(io.read_u64());
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             try!(io.read_exact(&mut pad));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:185:28
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let ext_code = try!(io.read_u32());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:194:23
[INFO] [stdout]     |
[INFO] [stdout] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |                 try!(ext.read(&mut sub));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         try!(io.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         try!(self.read_extensions(io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         try!(self.v3.incompatible.ensure_known(&self.v3.feature_name_table));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:244:34
[INFO] [stdout]     |
[INFO] [stdout] 244 |         self.v3.incompatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:245:32
[INFO] [stdout]     |
[INFO] [stdout] 245 |         self.v3.compatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:246:31
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self.v3.autoclear.set(try!(io.read_u64()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:247:34
[INFO] [stdout]     |
[INFO] [stdout] 247 |         self.v3.refcount_order = try!(io.read_u32());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.v3.header_length = try!(io.read_u32());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:260:41
[INFO] [stdout]     |
[INFO] [stdout] 260 |             self.v3.backing_file_name = try!(self.read_path(io, backing_file_size as usize));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         try!(self.read_common(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         try!(self.read_v3(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let reader = try!(Reader::new(self, offset));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let entry = try!(l1.read_u64_at(offset));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut cache = try!(self.l2_cache.lock());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:82:19
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let ret = try!(self.io.read_u64_at(offset));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let l1_entry = try!(self.l1_entry_read(l1, l1_l2_idx));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 try!(self.l2_entry_parse(raw))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:120:27
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 let raw = try!(self.l2_entry_read_raw(pos, l2_block_idx));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     try!(self.io.read_exact_at(pos + offset, buf))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             try!(self.guest_block_read(entry, offset, &mut buf[..size]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |             let entry = try!(self.l2_entry_read(l1, guest_block_pos));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(self.io.read_exact_at(l1_offset, &mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |         let buf = try!(q.l1_read(l1_offset));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(q.header.read(&mut q.io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/extension.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:75:33
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:74:52
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut Extension {
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut dyn Extension {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:73:35
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => f.write_str(self.description()),
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stdout]  --> src/extension.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use byteorder::ReadBytesExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/extension.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/header.rs:207:21
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:146:58
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                                          ----^^^
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:193:33
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                 ----^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extension_code` is never used
[INFO] [stdout]   --> src/extension.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Extension: Debug {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 18 |     fn extension_code(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 18 |         pos: u64,
[INFO] [stdout] 19 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 33 |         pos: u64,
[INFO] [stdout] 34 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pos`, `cow`, and `size` are never read
[INFO] [stdout]   --> src/read.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Compressed {
[INFO] [stdout]    |     ---------- fields in this variant
[INFO] [stdout] 38 |         pos: u64,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 39 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 40 |         size: u64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]   --> src/extension.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.into_iter()
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.iter()
[INFO] [stdout]    |                                     ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = IntoIterator::into_iter(buf)
[INFO] [stdout]    |                                 ++++++++++++++++++++++++   ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "9cbdc9a488b1e2ddf1d4f2b57d6688e9de0f79a8a83cb57972cbf8d69c30386e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cbdc9a488b1e2ddf1d4f2b57d6688e9de0f79a8a83cb57972cbf8d69c30386e", kill_on_drop: false }`
[INFO] [stdout] 9cbdc9a488b1e2ddf1d4f2b57d6688e9de0f79a8a83cb57972cbf8d69c30386e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e54b4a0f1cabfb406efc1d96ad7c795e9647d8c93ef359027284c68895a178e1
[INFO] running `Command { std: "docker" "start" "-a" "e54b4a0f1cabfb406efc1d96ad7c795e9647d8c93ef359027284c68895a178e1", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(io.read_to_end(&mut self.data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     try!(io.read_exact(&mut buf));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |                     let bit = try!(io.read_u8());
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         try!(self.validate_common());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:165:24
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.c.magic = try!(io.read_u32());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:166:26
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.c.version = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:167:38
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.c.backing_file_offset = try!(io.read_u64());
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:168:36
[INFO] [stdout]     |
[INFO] [stdout] 168 |         self.c.backing_file_size = try!(io.read_u32());
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |         self.c.cluster_bits = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.c.size = try!(io.read_u64());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:171:31
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.c.crypt_method = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:172:26
[INFO] [stdout]     |
[INFO] [stdout] 172 |         self.c.l1_size = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:173:34
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.c.l1_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:174:40
[INFO] [stdout]     |
[INFO] [stdout] 174 |         self.c.refcount_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:175:42
[INFO] [stdout]     |
[INFO] [stdout] 175 |         self.c.refcount_table_clusters = try!(io.read_u32());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:176:31
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.c.nb_snapshots = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         self.c.snapshots_offset = try!(io.read_u64());
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             try!(io.read_exact(&mut pad));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:185:28
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let ext_code = try!(io.read_u32());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:194:23
[INFO] [stdout]     |
[INFO] [stdout] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |                 try!(ext.read(&mut sub));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         try!(io.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         try!(self.read_extensions(io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         try!(self.v3.incompatible.ensure_known(&self.v3.feature_name_table));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:244:34
[INFO] [stdout]     |
[INFO] [stdout] 244 |         self.v3.incompatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:245:32
[INFO] [stdout]     |
[INFO] [stdout] 245 |         self.v3.compatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:246:31
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self.v3.autoclear.set(try!(io.read_u64()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:247:34
[INFO] [stdout]     |
[INFO] [stdout] 247 |         self.v3.refcount_order = try!(io.read_u32());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.v3.header_length = try!(io.read_u32());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:260:41
[INFO] [stdout]     |
[INFO] [stdout] 260 |             self.v3.backing_file_name = try!(self.read_path(io, backing_file_size as usize));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         try!(self.read_common(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         try!(self.read_v3(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let reader = try!(Reader::new(self, offset));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let entry = try!(l1.read_u64_at(offset));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut cache = try!(self.l2_cache.lock());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:82:19
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let ret = try!(self.io.read_u64_at(offset));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let l1_entry = try!(self.l1_entry_read(l1, l1_l2_idx));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 try!(self.l2_entry_parse(raw))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:120:27
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 let raw = try!(self.l2_entry_read_raw(pos, l2_block_idx));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     try!(self.io.read_exact_at(pos + offset, buf))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             try!(self.guest_block_read(entry, offset, &mut buf[..size]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |             let entry = try!(self.l2_entry_read(l1, guest_block_pos));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(self.io.read_exact_at(l1_offset, &mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |         let buf = try!(q.l1_read(l1_offset));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(q.header.read(&mut q.io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/extension.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:75:33
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:74:52
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut Extension {
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut dyn Extension {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:73:35
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => f.write_str(self.description()),
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stdout]  --> src/extension.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use byteorder::ReadBytesExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/extension.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/header.rs:207:21
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:146:58
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                                          ----^^^
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:193:33
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                 ----^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extension_code` is never used
[INFO] [stdout]   --> src/extension.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Extension: Debug {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 18 |     fn extension_code(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 18 |         pos: u64,
[INFO] [stdout] 19 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 33 |         pos: u64,
[INFO] [stdout] 34 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pos`, `cow`, and `size` are never read
[INFO] [stdout]   --> src/read.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Compressed {
[INFO] [stdout]    |     ---------- fields in this variant
[INFO] [stdout] 38 |         pos: u64,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 39 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 40 |         size: u64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]   --> src/extension.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.into_iter()
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.iter()
[INFO] [stdout]    |                                     ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = IntoIterator::into_iter(buf)
[INFO] [stdout]    |                                 ++++++++++++++++++++++++   ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling qcow2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(io.read_to_end(&mut self.data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     try!(io.read_exact(&mut buf));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |                     let bit = try!(io.read_u8());
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         try!(self.validate_common());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:165:24
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.c.magic = try!(io.read_u32());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:166:26
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.c.version = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:167:38
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.c.backing_file_offset = try!(io.read_u64());
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:168:36
[INFO] [stdout]     |
[INFO] [stdout] 168 |         self.c.backing_file_size = try!(io.read_u32());
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |         self.c.cluster_bits = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.c.size = try!(io.read_u64());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:171:31
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.c.crypt_method = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:172:26
[INFO] [stdout]     |
[INFO] [stdout] 172 |         self.c.l1_size = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:173:34
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.c.l1_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:174:40
[INFO] [stdout]     |
[INFO] [stdout] 174 |         self.c.refcount_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:175:42
[INFO] [stdout]     |
[INFO] [stdout] 175 |         self.c.refcount_table_clusters = try!(io.read_u32());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:176:31
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.c.nb_snapshots = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         self.c.snapshots_offset = try!(io.read_u64());
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             try!(io.read_exact(&mut pad));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:185:28
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let ext_code = try!(io.read_u32());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:194:23
[INFO] [stdout]     |
[INFO] [stdout] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |                 try!(ext.read(&mut sub));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         try!(io.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         try!(self.read_extensions(io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         try!(self.v3.incompatible.ensure_known(&self.v3.feature_name_table));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:244:34
[INFO] [stdout]     |
[INFO] [stdout] 244 |         self.v3.incompatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:245:32
[INFO] [stdout]     |
[INFO] [stdout] 245 |         self.v3.compatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:246:31
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self.v3.autoclear.set(try!(io.read_u64()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:247:34
[INFO] [stdout]     |
[INFO] [stdout] 247 |         self.v3.refcount_order = try!(io.read_u32());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.v3.header_length = try!(io.read_u32());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:260:41
[INFO] [stdout]     |
[INFO] [stdout] 260 |             self.v3.backing_file_name = try!(self.read_path(io, backing_file_size as usize));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         try!(self.read_common(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         try!(self.read_v3(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let reader = try!(Reader::new(self, offset));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let entry = try!(l1.read_u64_at(offset));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut cache = try!(self.l2_cache.lock());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:82:19
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let ret = try!(self.io.read_u64_at(offset));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let l1_entry = try!(self.l1_entry_read(l1, l1_l2_idx));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 try!(self.l2_entry_parse(raw))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:120:27
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 let raw = try!(self.l2_entry_read_raw(pos, l2_block_idx));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     try!(self.io.read_exact_at(pos + offset, buf))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             try!(self.guest_block_read(entry, offset, &mut buf[..size]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |             let entry = try!(self.l2_entry_read(l1, guest_block_pos));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(self.io.read_exact_at(l1_offset, &mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |         let buf = try!(q.l1_read(l1_offset));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(q.header.read(&mut q.io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/extension.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:75:33
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:74:52
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut Extension {
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut dyn Extension {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:73:35
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => f.write_str(self.description()),
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stdout]  --> src/extension.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use byteorder::ReadBytesExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/extension.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/header.rs:207:21
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:146:58
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                                          ----^^^
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:193:33
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                 ----^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extension_code` is never used
[INFO] [stdout]   --> src/extension.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Extension: Debug {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 18 |     fn extension_code(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 18 |         pos: u64,
[INFO] [stdout] 19 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 33 |         pos: u64,
[INFO] [stdout] 34 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pos`, `cow`, and `size` are never read
[INFO] [stdout]   --> src/read.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Compressed {
[INFO] [stdout]    |     ---------- fields in this variant
[INFO] [stdout] 38 |         pos: u64,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 39 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 40 |         size: u64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]   --> src/extension.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.into_iter()
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.iter()
[INFO] [stdout]    |                                     ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = IntoIterator::into_iter(buf)
[INFO] [stdout]    |                                 ++++++++++++++++++++++++   ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "e54b4a0f1cabfb406efc1d96ad7c795e9647d8c93ef359027284c68895a178e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e54b4a0f1cabfb406efc1d96ad7c795e9647d8c93ef359027284c68895a178e1", kill_on_drop: false }`
[INFO] [stdout] e54b4a0f1cabfb406efc1d96ad7c795e9647d8c93ef359027284c68895a178e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fd557f1ac23cebf7ff16bbff153bb2957583910b97cfea4b8e1153cca58b79ad
[INFO] running `Command { std: "docker" "start" "-a" "fd557f1ac23cebf7ff16bbff153bb2957583910b97cfea4b8e1153cca58b79ad", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/extension.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         try!(io.read_to_end(&mut self.data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/extension.rs:93:21
[INFO] [stderr]    |
[INFO] [stderr] 93 |                     try!(io.read_exact(&mut buf));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/extension.rs:86:31
[INFO] [stderr]    |
[INFO] [stderr] 86 |                     let bit = try!(io.read_u8());
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:178:9
[INFO] [stderr]     |
[INFO] [stderr] 178 |         try!(self.validate_common());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:165:24
[INFO] [stderr]     |
[INFO] [stderr] 165 |         self.c.magic = try!(io.read_u32());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:166:26
[INFO] [stderr]     |
[INFO] [stderr] 166 |         self.c.version = try!(io.read_u32());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:167:38
[INFO] [stderr]     |
[INFO] [stderr] 167 |         self.c.backing_file_offset = try!(io.read_u64());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:168:36
[INFO] [stderr]     |
[INFO] [stderr] 168 |         self.c.backing_file_size = try!(io.read_u32());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:169:31
[INFO] [stderr]     |
[INFO] [stderr] 169 |         self.c.cluster_bits = try!(io.read_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:170:23
[INFO] [stderr]     |
[INFO] [stderr] 170 |         self.c.size = try!(io.read_u64());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:171:31
[INFO] [stderr]     |
[INFO] [stderr] 171 |         self.c.crypt_method = try!(io.read_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:172:26
[INFO] [stderr]     |
[INFO] [stderr] 172 |         self.c.l1_size = try!(io.read_u32());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:173:34
[INFO] [stderr]     |
[INFO] [stderr] 173 |         self.c.l1_table_offset = try!(io.read_u64());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:174:40
[INFO] [stderr]     |
[INFO] [stderr] 174 |         self.c.refcount_table_offset = try!(io.read_u64());
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:175:42
[INFO] [stderr]     |
[INFO] [stderr] 175 |         self.c.refcount_table_clusters = try!(io.read_u32());
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:176:31
[INFO] [stderr]     |
[INFO] [stderr] 176 |         self.c.nb_snapshots = try!(io.read_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:177:35
[INFO] [stderr]     |
[INFO] [stderr] 177 |         self.c.snapshots_offset = try!(io.read_u64());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |             try!(io.read_exact(&mut pad));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:185:28
[INFO] [stderr]     |
[INFO] [stderr] 185 |             let ext_code = try!(io.read_u32());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:194:23
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:208:17
[INFO] [stderr]     |
[INFO] [stderr] 208 |                 try!(ext.read(&mut sub));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:230:9
[INFO] [stderr]     |
[INFO] [stderr] 230 |         try!(io.read_exact(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:250:9
[INFO] [stderr]     |
[INFO] [stderr] 250 |         try!(self.read_extensions(io));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.v3.incompatible.ensure_known(&self.v3.feature_name_table));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:244:34
[INFO] [stderr]     |
[INFO] [stderr] 244 |         self.v3.incompatible.set(try!(io.read_u64()));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:245:32
[INFO] [stderr]     |
[INFO] [stderr] 245 |         self.v3.compatible.set(try!(io.read_u64()));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:246:31
[INFO] [stderr]     |
[INFO] [stderr] 246 |         self.v3.autoclear.set(try!(io.read_u64()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:247:34
[INFO] [stderr]     |
[INFO] [stderr] 247 |         self.v3.refcount_order = try!(io.read_u32());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:248:33
[INFO] [stderr]     |
[INFO] [stderr] 248 |         self.v3.header_length = try!(io.read_u32());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:260:41
[INFO] [stderr]     |
[INFO] [stderr] 260 |             self.v3.backing_file_name = try!(self.read_path(io, backing_file_size as usize));
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:295:9
[INFO] [stderr]     |
[INFO] [stderr] 295 |         try!(self.read_common(&mut io));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         try!(self.read_v3(&mut io));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:53:22
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let reader = try!(Reader::new(self, offset));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let entry = try!(l1.read_u64_at(offset));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:77:25
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let mut cache = try!(self.l2_cache.lock());
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:82:19
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let ret = try!(self.io.read_u64_at(offset));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:116:24
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let l1_entry = try!(self.l1_entry_read(l1, l1_l2_idx));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 try!(self.l2_entry_parse(raw))
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:120:27
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 let raw = try!(self.l2_entry_read_raw(pos, l2_block_idx));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:137:21
[INFO] [stderr]     |
[INFO] [stderr] 137 |                     try!(self.io.read_exact_at(pos + offset, buf))
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |             try!(self.guest_block_read(entry, offset, &mut buf[..size]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:157:25
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let entry = try!(self.l2_entry_read(l1, guest_block_pos));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(self.io.read_exact_at(l1_offset, &mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:184:19
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let buf = try!(q.l1_read(l1_offset));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         try!(q.header.read(&mut q.io));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]  --> src/extension.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/extension.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn read(&mut self, io: &mut ReadInt) -> Result<()>;
[INFO] [stderr]    |                                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()>;
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/extension.rs:39:33
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stderr]    |                                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/extension.rs:75:33
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stderr]    |                                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/header.rs:74:52
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn extension(&mut self, code: u32) -> &mut Extension {
[INFO] [stderr]    |                                                    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn extension(&mut self, code: u32) -> &mut dyn Extension {
[INFO] [stderr]    |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:47:39
[INFO] [stderr]    |
[INFO] [stderr] 47 |             Error::Io(ref err) => err.description(),
[INFO] [stderr]    |                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:73:35
[INFO] [stderr]    |
[INFO] [stderr] 73 |             _ => f.write_str(self.description()),
[INFO] [stderr]    |                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stderr]  --> src/extension.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use byteorder::ReadBytesExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/extension.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/header.rs:207:21
[INFO] [stderr]     |
[INFO] [stderr] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/read.rs:146:58
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                                                          ----^^^
[INFO] [stderr]     |                                                          |
[INFO] [stderr]     |                                                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/read.rs:193:33
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                                 ----^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method `extension_code` is never used
[INFO] [stderr]   --> src/extension.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub trait Extension: Debug {
[INFO] [stderr]    |           --------- method in this trait
[INFO] [stderr] 18 |     fn extension_code(&self) -> u32;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `cow` is never read
[INFO] [stderr]   --> src/read.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     Standard {
[INFO] [stderr]    |     -------- field in this variant
[INFO] [stderr] 18 |         pos: u64,
[INFO] [stderr] 19 |         cow: bool,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `cow` is never read
[INFO] [stderr]   --> src/read.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Standard {
[INFO] [stderr]    |     -------- field in this variant
[INFO] [stderr] 33 |         pos: u64,
[INFO] [stderr] 34 |         cow: bool,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `pos`, `cow`, and `size` are never read
[INFO] [stderr]   --> src/read.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Compressed {
[INFO] [stderr]    |     ---------- fields in this variant
[INFO] [stderr] 38 |         pos: u64,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 39 |         cow: bool,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 40 |         size: u64,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stderr]   --> src/extension.rs:95:37
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = buf.into_iter()
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this changes meaning in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = buf.iter()
[INFO] [stderr]    |                                     ~~~~
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = IntoIterator::into_iter(buf)
[INFO] [stderr]    |                                 ++++++++++++++++++++++++   ~
[INFO] [stderr] 
[INFO] [stderr] warning: `qcow2` (lib) generated 63 warnings (run `cargo fix --lib -p qcow2` to apply 9 suggestions)
[INFO] [stderr] warning: `qcow2` (lib test) generated 63 warnings (63 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/qcow2-7e4226f3221f7fc2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/qcow2-dump.rs (/opt/rustwide/target/debug/deps/qcow2_dump-bc7554d67fb8fcf9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-3eb6f7db66ee53a1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test basic_read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests qcow2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Qcow2 (line 67) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Qcow2 (line 67) stdout ----
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | try!(reader.read_exact_at(5 * 1024 * 1024, &mut buf));
[INFO] [stdout]    | ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | let file = try!(File::open("image.qcow2"));
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | let qcow = try!(Qcow2::open(file));
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:82:14
[INFO] [stdout]    |
[INFO] [stdout] 16 | let reader = try!(qcow.reader());
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] error: literal out of range for `u8`
[INFO] [stdout]   --> src/lib.rs:83:23
[INFO] [stdout]    |
[INFO] [stdout] 17 | let mut buf = vec![0, 4096];
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the literal `4096` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stdout]    = note: `#[deny(overflowing_literals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Qcow2 (line 67)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "fd557f1ac23cebf7ff16bbff153bb2957583910b97cfea4b8e1153cca58b79ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd557f1ac23cebf7ff16bbff153bb2957583910b97cfea4b8e1153cca58b79ad", kill_on_drop: false }`
[INFO] [stdout] fd557f1ac23cebf7ff16bbff153bb2957583910b97cfea4b8e1153cca58b79ad
[INFO] testing qcow2-0.1.2 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate qcow2 0.1.2 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate qcow2 0.1.2 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qcow2 0.1.2
[INFO] finished tweaking crates.io crate qcow2 0.1.2
[INFO] tweaked toml for crates.io crate qcow2 0.1.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding linked-hash-map v0.0.9 (latest: v0.5.6)
[INFO] [stderr]       Adding lru-cache v0.0.7 (latest: v0.1.2)
[INFO] [stderr]       Adding positioned-io v0.2.2 (latest: v0.3.3)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18e0b2c10729e52c9563788c9ed429132be5ade9c76cc62a5f051ba5ba37a22a
[INFO] running `Command { std: "docker" "start" "-a" "18e0b2c10729e52c9563788c9ed429132be5ade9c76cc62a5f051ba5ba37a22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18e0b2c10729e52c9563788c9ed429132be5ade9c76cc62a5f051ba5ba37a22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18e0b2c10729e52c9563788c9ed429132be5ade9c76cc62a5f051ba5ba37a22a", kill_on_drop: false }`
[INFO] [stdout] 18e0b2c10729e52c9563788c9ed429132be5ade9c76cc62a5f051ba5ba37a22a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27bee8eb15c7dedd78942631d01212732b928305507b54433aaa171672efbecf
[INFO] running `Command { std: "docker" "start" "-a" "27bee8eb15c7dedd78942631d01212732b928305507b54433aaa171672efbecf", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling linked-hash-map v0.0.9
[INFO] [stderr]    Compiling positioned-io v0.2.2
[INFO] [stderr]    Compiling lru-cache v0.0.7
[INFO] [stderr]    Compiling qcow2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(io.read_to_end(&mut self.data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     try!(io.read_exact(&mut buf));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |                     let bit = try!(io.read_u8());
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         try!(self.validate_common());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:165:24
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.c.magic = try!(io.read_u32());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:166:26
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.c.version = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:167:38
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.c.backing_file_offset = try!(io.read_u64());
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:168:36
[INFO] [stdout]     |
[INFO] [stdout] 168 |         self.c.backing_file_size = try!(io.read_u32());
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |         self.c.cluster_bits = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.c.size = try!(io.read_u64());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:171:31
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.c.crypt_method = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:172:26
[INFO] [stdout]     |
[INFO] [stdout] 172 |         self.c.l1_size = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:173:34
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.c.l1_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:174:40
[INFO] [stdout]     |
[INFO] [stdout] 174 |         self.c.refcount_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:175:42
[INFO] [stdout]     |
[INFO] [stdout] 175 |         self.c.refcount_table_clusters = try!(io.read_u32());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:176:31
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.c.nb_snapshots = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         self.c.snapshots_offset = try!(io.read_u64());
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             try!(io.read_exact(&mut pad));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:185:28
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let ext_code = try!(io.read_u32());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:194:23
[INFO] [stdout]     |
[INFO] [stdout] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |                 try!(ext.read(&mut sub));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         try!(io.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         try!(self.read_extensions(io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         try!(self.v3.incompatible.ensure_known(&self.v3.feature_name_table));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:244:34
[INFO] [stdout]     |
[INFO] [stdout] 244 |         self.v3.incompatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:245:32
[INFO] [stdout]     |
[INFO] [stdout] 245 |         self.v3.compatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:246:31
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self.v3.autoclear.set(try!(io.read_u64()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:247:34
[INFO] [stdout]     |
[INFO] [stdout] 247 |         self.v3.refcount_order = try!(io.read_u32());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.v3.header_length = try!(io.read_u32());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:260:41
[INFO] [stdout]     |
[INFO] [stdout] 260 |             self.v3.backing_file_name = try!(self.read_path(io, backing_file_size as usize));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         try!(self.read_common(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         try!(self.read_v3(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let reader = try!(Reader::new(self, offset));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let entry = try!(l1.read_u64_at(offset));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut cache = try!(self.l2_cache.lock());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:82:19
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let ret = try!(self.io.read_u64_at(offset));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let l1_entry = try!(self.l1_entry_read(l1, l1_l2_idx));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 try!(self.l2_entry_parse(raw))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:120:27
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 let raw = try!(self.l2_entry_read_raw(pos, l2_block_idx));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     try!(self.io.read_exact_at(pos + offset, buf))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             try!(self.guest_block_read(entry, offset, &mut buf[..size]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |             let entry = try!(self.l2_entry_read(l1, guest_block_pos));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(self.io.read_exact_at(l1_offset, &mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |         let buf = try!(q.l1_read(l1_offset));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(q.header.read(&mut q.io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/extension.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:75:33
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:74:52
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut Extension {
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut dyn Extension {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:73:35
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => f.write_str(self.description()),
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stdout]  --> src/extension.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use byteorder::ReadBytesExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/extension.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/header.rs:207:21
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:146:58
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                                          ----^^^
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:193:33
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                 ----^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extension_code` is never used
[INFO] [stdout]   --> src/extension.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Extension: Debug {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 18 |     fn extension_code(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 18 |         pos: u64,
[INFO] [stdout] 19 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 33 |         pos: u64,
[INFO] [stdout] 34 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pos`, `cow`, and `size` are never read
[INFO] [stdout]   --> src/read.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Compressed {
[INFO] [stdout]    |     ---------- fields in this variant
[INFO] [stdout] 38 |         pos: u64,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 39 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 40 |         size: u64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]   --> src/extension.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.into_iter()
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.iter()
[INFO] [stdout]    |                                     ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = IntoIterator::into_iter(buf)
[INFO] [stdout]    |                                 ++++++++++++++++++++++++   ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "27bee8eb15c7dedd78942631d01212732b928305507b54433aaa171672efbecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27bee8eb15c7dedd78942631d01212732b928305507b54433aaa171672efbecf", kill_on_drop: false }`
[INFO] [stdout] 27bee8eb15c7dedd78942631d01212732b928305507b54433aaa171672efbecf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb6ed501e6694524fb1aa77b978062d7e2d07a0b1e5754145d891556fb659899
[INFO] running `Command { std: "docker" "start" "-a" "fb6ed501e6694524fb1aa77b978062d7e2d07a0b1e5754145d891556fb659899", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(io.read_to_end(&mut self.data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     try!(io.read_exact(&mut buf));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |                     let bit = try!(io.read_u8());
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         try!(self.validate_common());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:165:24
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.c.magic = try!(io.read_u32());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:166:26
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.c.version = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:167:38
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.c.backing_file_offset = try!(io.read_u64());
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:168:36
[INFO] [stdout]     |
[INFO] [stdout] 168 |         self.c.backing_file_size = try!(io.read_u32());
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |         self.c.cluster_bits = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.c.size = try!(io.read_u64());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:171:31
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.c.crypt_method = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:172:26
[INFO] [stdout]     |
[INFO] [stdout] 172 |         self.c.l1_size = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:173:34
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.c.l1_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:174:40
[INFO] [stdout]     |
[INFO] [stdout] 174 |         self.c.refcount_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:175:42
[INFO] [stdout]     |
[INFO] [stdout] 175 |         self.c.refcount_table_clusters = try!(io.read_u32());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:176:31
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.c.nb_snapshots = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         self.c.snapshots_offset = try!(io.read_u64());
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             try!(io.read_exact(&mut pad));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:185:28
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let ext_code = try!(io.read_u32());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:194:23
[INFO] [stdout]     |
[INFO] [stdout] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |                 try!(ext.read(&mut sub));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         try!(io.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         try!(self.read_extensions(io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         try!(self.v3.incompatible.ensure_known(&self.v3.feature_name_table));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:244:34
[INFO] [stdout]     |
[INFO] [stdout] 244 |         self.v3.incompatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:245:32
[INFO] [stdout]     |
[INFO] [stdout] 245 |         self.v3.compatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:246:31
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self.v3.autoclear.set(try!(io.read_u64()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:247:34
[INFO] [stdout]     |
[INFO] [stdout] 247 |         self.v3.refcount_order = try!(io.read_u32());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.v3.header_length = try!(io.read_u32());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:260:41
[INFO] [stdout]     |
[INFO] [stdout] 260 |             self.v3.backing_file_name = try!(self.read_path(io, backing_file_size as usize));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         try!(self.read_common(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         try!(self.read_v3(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let reader = try!(Reader::new(self, offset));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let entry = try!(l1.read_u64_at(offset));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut cache = try!(self.l2_cache.lock());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:82:19
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let ret = try!(self.io.read_u64_at(offset));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let l1_entry = try!(self.l1_entry_read(l1, l1_l2_idx));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 try!(self.l2_entry_parse(raw))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:120:27
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 let raw = try!(self.l2_entry_read_raw(pos, l2_block_idx));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     try!(self.io.read_exact_at(pos + offset, buf))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             try!(self.guest_block_read(entry, offset, &mut buf[..size]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |             let entry = try!(self.l2_entry_read(l1, guest_block_pos));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(self.io.read_exact_at(l1_offset, &mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |         let buf = try!(q.l1_read(l1_offset));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(q.header.read(&mut q.io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/extension.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:75:33
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:74:52
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut Extension {
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut dyn Extension {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:73:35
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => f.write_str(self.description()),
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stdout]  --> src/extension.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use byteorder::ReadBytesExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/extension.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/header.rs:207:21
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:146:58
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                                          ----^^^
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:193:33
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                 ----^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extension_code` is never used
[INFO] [stdout]   --> src/extension.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Extension: Debug {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 18 |     fn extension_code(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 18 |         pos: u64,
[INFO] [stdout] 19 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 33 |         pos: u64,
[INFO] [stdout] 34 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pos`, `cow`, and `size` are never read
[INFO] [stdout]   --> src/read.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Compressed {
[INFO] [stdout]    |     ---------- fields in this variant
[INFO] [stdout] 38 |         pos: u64,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 39 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 40 |         size: u64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]   --> src/extension.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.into_iter()
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.iter()
[INFO] [stdout]    |                                     ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = IntoIterator::into_iter(buf)
[INFO] [stdout]    |                                 ++++++++++++++++++++++++   ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling qcow2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(io.read_to_end(&mut self.data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     try!(io.read_exact(&mut buf));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/extension.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |                     let bit = try!(io.read_u8());
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         try!(self.validate_common());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:165:24
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.c.magic = try!(io.read_u32());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:166:26
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.c.version = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:167:38
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.c.backing_file_offset = try!(io.read_u64());
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:168:36
[INFO] [stdout]     |
[INFO] [stdout] 168 |         self.c.backing_file_size = try!(io.read_u32());
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |         self.c.cluster_bits = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.c.size = try!(io.read_u64());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:171:31
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.c.crypt_method = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:172:26
[INFO] [stdout]     |
[INFO] [stdout] 172 |         self.c.l1_size = try!(io.read_u32());
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:173:34
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.c.l1_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:174:40
[INFO] [stdout]     |
[INFO] [stdout] 174 |         self.c.refcount_table_offset = try!(io.read_u64());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:175:42
[INFO] [stdout]     |
[INFO] [stdout] 175 |         self.c.refcount_table_clusters = try!(io.read_u32());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:176:31
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.c.nb_snapshots = try!(io.read_u32());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         self.c.snapshots_offset = try!(io.read_u64());
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             try!(io.read_exact(&mut pad));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:185:28
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let ext_code = try!(io.read_u32());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:194:23
[INFO] [stdout]     |
[INFO] [stdout] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |                 try!(ext.read(&mut sub));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         try!(io.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         try!(self.read_extensions(io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         try!(self.v3.incompatible.ensure_known(&self.v3.feature_name_table));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:244:34
[INFO] [stdout]     |
[INFO] [stdout] 244 |         self.v3.incompatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:245:32
[INFO] [stdout]     |
[INFO] [stdout] 245 |         self.v3.compatible.set(try!(io.read_u64()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:246:31
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self.v3.autoclear.set(try!(io.read_u64()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:247:34
[INFO] [stdout]     |
[INFO] [stdout] 247 |         self.v3.refcount_order = try!(io.read_u32());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.v3.header_length = try!(io.read_u32());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:260:41
[INFO] [stdout]     |
[INFO] [stdout] 260 |             self.v3.backing_file_name = try!(self.read_path(io, backing_file_size as usize));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         try!(self.read_common(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/header.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         try!(self.read_v3(&mut io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let reader = try!(Reader::new(self, offset));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let entry = try!(l1.read_u64_at(offset));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut cache = try!(self.l2_cache.lock());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/read.rs:82:19
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let ret = try!(self.io.read_u64_at(offset));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let l1_entry = try!(self.l1_entry_read(l1, l1_l2_idx));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 try!(self.l2_entry_parse(raw))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:120:27
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 let raw = try!(self.l2_entry_read_raw(pos, l2_block_idx));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     try!(self.io.read_exact_at(pos + offset, buf))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             try!(self.guest_block_read(entry, offset, &mut buf[..size]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |             let entry = try!(self.l2_entry_read(l1, guest_block_pos));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(self.io.read_exact_at(l1_offset, &mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/read.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |         let buf = try!(q.l1_read(l1_offset));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(q.header.read(&mut q.io));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/extension.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()>;
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/extension.rs:75:33
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:74:52
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut Extension {
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn extension(&mut self, code: u32) -> &mut dyn Extension {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:73:35
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => f.write_str(self.description()),
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stdout]  --> src/extension.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use byteorder::ReadBytesExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/extension.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/header.rs:207:21
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:146:58
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                                          ----^^^
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/read.rs:193:33
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]     |                                 ----^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extension_code` is never used
[INFO] [stdout]   --> src/extension.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Extension: Debug {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 18 |     fn extension_code(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 18 |         pos: u64,
[INFO] [stdout] 19 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cow` is never read
[INFO] [stdout]   --> src/read.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Standard {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 33 |         pos: u64,
[INFO] [stdout] 34 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pos`, `cow`, and `size` are never read
[INFO] [stdout]   --> src/read.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Compressed {
[INFO] [stdout]    |     ---------- fields in this variant
[INFO] [stdout] 38 |         pos: u64,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 39 |         cow: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 40 |         size: u64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]   --> src/extension.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.into_iter()
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = buf.iter()
[INFO] [stdout]    |                                     ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let chars = IntoIterator::into_iter(buf)
[INFO] [stdout]    |                                 ++++++++++++++++++++++++   ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "fb6ed501e6694524fb1aa77b978062d7e2d07a0b1e5754145d891556fb659899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb6ed501e6694524fb1aa77b978062d7e2d07a0b1e5754145d891556fb659899", kill_on_drop: false }`
[INFO] [stdout] fb6ed501e6694524fb1aa77b978062d7e2d07a0b1e5754145d891556fb659899
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f70f95a27b3edb3d2804ec86f1be80ebf9f4695397e4a457f0f3db62e95c08d
[INFO] running `Command { std: "docker" "start" "-a" "9f70f95a27b3edb3d2804ec86f1be80ebf9f4695397e4a457f0f3db62e95c08d", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/extension.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         try!(io.read_to_end(&mut self.data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/extension.rs:93:21
[INFO] [stderr]    |
[INFO] [stderr] 93 |                     try!(io.read_exact(&mut buf));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/extension.rs:86:31
[INFO] [stderr]    |
[INFO] [stderr] 86 |                     let bit = try!(io.read_u8());
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:178:9
[INFO] [stderr]     |
[INFO] [stderr] 178 |         try!(self.validate_common());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:165:24
[INFO] [stderr]     |
[INFO] [stderr] 165 |         self.c.magic = try!(io.read_u32());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:166:26
[INFO] [stderr]     |
[INFO] [stderr] 166 |         self.c.version = try!(io.read_u32());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:167:38
[INFO] [stderr]     |
[INFO] [stderr] 167 |         self.c.backing_file_offset = try!(io.read_u64());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:168:36
[INFO] [stderr]     |
[INFO] [stderr] 168 |         self.c.backing_file_size = try!(io.read_u32());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:169:31
[INFO] [stderr]     |
[INFO] [stderr] 169 |         self.c.cluster_bits = try!(io.read_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:170:23
[INFO] [stderr]     |
[INFO] [stderr] 170 |         self.c.size = try!(io.read_u64());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:171:31
[INFO] [stderr]     |
[INFO] [stderr] 171 |         self.c.crypt_method = try!(io.read_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:172:26
[INFO] [stderr]     |
[INFO] [stderr] 172 |         self.c.l1_size = try!(io.read_u32());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:173:34
[INFO] [stderr]     |
[INFO] [stderr] 173 |         self.c.l1_table_offset = try!(io.read_u64());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:174:40
[INFO] [stderr]     |
[INFO] [stderr] 174 |         self.c.refcount_table_offset = try!(io.read_u64());
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:175:42
[INFO] [stderr]     |
[INFO] [stderr] 175 |         self.c.refcount_table_clusters = try!(io.read_u32());
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:176:31
[INFO] [stderr]     |
[INFO] [stderr] 176 |         self.c.nb_snapshots = try!(io.read_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:177:35
[INFO] [stderr]     |
[INFO] [stderr] 177 |         self.c.snapshots_offset = try!(io.read_u64());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |             try!(io.read_exact(&mut pad));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:185:28
[INFO] [stderr]     |
[INFO] [stderr] 185 |             let ext_code = try!(io.read_u32());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:194:23
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:208:17
[INFO] [stderr]     |
[INFO] [stderr] 208 |                 try!(ext.read(&mut sub));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:230:9
[INFO] [stderr]     |
[INFO] [stderr] 230 |         try!(io.read_exact(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:250:9
[INFO] [stderr]     |
[INFO] [stderr] 250 |         try!(self.read_extensions(io));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.v3.incompatible.ensure_known(&self.v3.feature_name_table));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:244:34
[INFO] [stderr]     |
[INFO] [stderr] 244 |         self.v3.incompatible.set(try!(io.read_u64()));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:245:32
[INFO] [stderr]     |
[INFO] [stderr] 245 |         self.v3.compatible.set(try!(io.read_u64()));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:246:31
[INFO] [stderr]     |
[INFO] [stderr] 246 |         self.v3.autoclear.set(try!(io.read_u64()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:247:34
[INFO] [stderr]     |
[INFO] [stderr] 247 |         self.v3.refcount_order = try!(io.read_u32());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:248:33
[INFO] [stderr]     |
[INFO] [stderr] 248 |         self.v3.header_length = try!(io.read_u32());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:260:41
[INFO] [stderr]     |
[INFO] [stderr] 260 |             self.v3.backing_file_name = try!(self.read_path(io, backing_file_size as usize));
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:295:9
[INFO] [stderr]     |
[INFO] [stderr] 295 |         try!(self.read_common(&mut io));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/header.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         try!(self.read_v3(&mut io));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:53:22
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let reader = try!(Reader::new(self, offset));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let entry = try!(l1.read_u64_at(offset));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:77:25
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let mut cache = try!(self.l2_cache.lock());
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:82:19
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let ret = try!(self.io.read_u64_at(offset));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:116:24
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let l1_entry = try!(self.l1_entry_read(l1, l1_l2_idx));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 try!(self.l2_entry_parse(raw))
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:120:27
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 let raw = try!(self.l2_entry_read_raw(pos, l2_block_idx));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:137:21
[INFO] [stderr]     |
[INFO] [stderr] 137 |                     try!(self.io.read_exact_at(pos + offset, buf))
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |             try!(self.guest_block_read(entry, offset, &mut buf[..size]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:157:25
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let entry = try!(self.l2_entry_read(l1, guest_block_pos));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(self.io.read_exact_at(l1_offset, &mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:184:19
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let buf = try!(q.l1_read(l1_offset));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         try!(q.header.read(&mut q.io));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]  --> src/extension.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/extension.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn read(&mut self, io: &mut ReadInt) -> Result<()>;
[INFO] [stderr]    |                                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()>;
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/extension.rs:39:33
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stderr]    |                                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/extension.rs:75:33
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&mut self, io: &mut ReadInt) -> Result<()> {
[INFO] [stderr]    |                                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&mut self, io: &mut dyn ReadInt) -> Result<()> {
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/header.rs:74:52
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn extension(&mut self, code: u32) -> &mut Extension {
[INFO] [stderr]    |                                                    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn extension(&mut self, code: u32) -> &mut dyn Extension {
[INFO] [stderr]    |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:47:39
[INFO] [stderr]    |
[INFO] [stderr] 47 |             Error::Io(ref err) => err.description(),
[INFO] [stderr]    |                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:73:35
[INFO] [stderr]    |
[INFO] [stderr] 73 |             _ => f.write_str(self.description()),
[INFO] [stderr]    |                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stderr]  --> src/extension.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use byteorder::ReadBytesExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/extension.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/header.rs:207:21
[INFO] [stderr]     |
[INFO] [stderr] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/read.rs:146:58
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                                                          ----^^^
[INFO] [stderr]     |                                                          |
[INFO] [stderr]     |                                                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/read.rs:193:33
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                                 ----^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method `extension_code` is never used
[INFO] [stderr]   --> src/extension.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub trait Extension: Debug {
[INFO] [stderr]    |           --------- method in this trait
[INFO] [stderr] 18 |     fn extension_code(&self) -> u32;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `cow` is never read
[INFO] [stderr]   --> src/read.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     Standard {
[INFO] [stderr]    |     -------- field in this variant
[INFO] [stderr] 18 |         pos: u64,
[INFO] [stderr] 19 |         cow: bool,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `cow` is never read
[INFO] [stderr]   --> src/read.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Standard {
[INFO] [stderr]    |     -------- field in this variant
[INFO] [stderr] 33 |         pos: u64,
[INFO] [stderr] 34 |         cow: bool,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `pos`, `cow`, and `size` are never read
[INFO] [stderr]   --> src/read.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Compressed {
[INFO] [stderr]    |     ---------- fields in this variant
[INFO] [stderr] 38 |         pos: u64,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 39 |         cow: bool,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 40 |         size: u64,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stderr]   --> src/extension.rs:95:37
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = buf.into_iter()
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this changes meaning in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = buf.iter()
[INFO] [stderr]    |                                     ~~~~
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = IntoIterator::into_iter(buf)
[INFO] [stderr]    |                                 ++++++++++++++++++++++++   ~
[INFO] [stderr] 
[INFO] [stderr] warning: `qcow2` (lib) generated 63 warnings (run `cargo fix --lib -p qcow2` to apply 9 suggestions)
[INFO] [stderr] warning: `qcow2` (lib test) generated 63 warnings (63 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/qcow2-7e4226f3221f7fc2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/qcow2-dump.rs (/opt/rustwide/target/debug/deps/qcow2_dump-bc7554d67fb8fcf9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-3eb6f7db66ee53a1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test basic_read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests qcow2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Qcow2 (line 67) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Qcow2 (line 67) stdout ----
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | try!(reader.read_exact_at(5 * 1024 * 1024, &mut buf));
[INFO] [stdout]    | ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | let file = try!(File::open("image.qcow2"));
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | let qcow = try!(Qcow2::open(file));
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:82:14
[INFO] [stdout]    |
[INFO] [stdout] 16 | let reader = try!(qcow.reader());
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] error: literal out of range for `u8`
[INFO] [stdout]   --> src/lib.rs:83:23
[INFO] [stdout]    |
[INFO] [stdout] 17 | let mut buf = vec![0, 4096];
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the literal `4096` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stdout]    = note: `#[deny(overflowing_literals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Qcow2 (line 67)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "9f70f95a27b3edb3d2804ec86f1be80ebf9f4695397e4a457f0f3db62e95c08d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f70f95a27b3edb3d2804ec86f1be80ebf9f4695397e4a457f0f3db62e95c08d", kill_on_drop: false }`
[INFO] [stdout] 9f70f95a27b3edb3d2804ec86f1be80ebf9f4695397e4a457f0f3db62e95c08d
