[INFO] fetching crate netio 0.6.1...
[INFO] building netio-0.6.1 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate netio 0.6.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate netio 0.6.1 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netio 0.6.1
[INFO] finished tweaking crates.io crate netio 0.6.1
[INFO] tweaked toml for crates.io crate netio 0.6.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding buf_redux v0.6.3 (available: v0.8.4)
[INFO] [stderr]       Adding memchr v1.0.2 (available: v2.7.4)
[INFO] [stderr]       Adding rustc_version v0.2.3 (available: v0.4.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1eef80cdf414a9f380a3f4e3db47289aca1ff4646f6698cd5d4c6ac15be12cb
[INFO] running `Command { std: "docker" "start" "-a" "c1eef80cdf414a9f380a3f4e3db47289aca1ff4646f6698cd5d4c6ac15be12cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1eef80cdf414a9f380a3f4e3db47289aca1ff4646f6698cd5d4c6ac15be12cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1eef80cdf414a9f380a3f4e3db47289aca1ff4646f6698cd5d4c6ac15be12cb", kill_on_drop: false }`
[INFO] [stdout] c1eef80cdf414a9f380a3f4e3db47289aca1ff4646f6698cd5d4c6ac15be12cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa83a440d04af0fe3fc30a1439f0b8f0bce9ec083178d4566271aee85749b80f
[INFO] running `Command { std: "docker" "start" "-a" "aa83a440d04af0fe3fc30a1439f0b8f0bce9ec083178d4566271aee85749b80f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling netio v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling buf_redux v0.6.3
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/impls/mod.rs:151:15
[INFO] [stdout]     |
[INFO] [stdout] 151 |         match try!(self.read_into_buf()) {
[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/adapt/mod.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 try!(self.inner.seek(std::io::SeekFrom::Start(0)));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             try!(self.inner.seek(std::io::SeekFrom::Start(0)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |         if try!(self.inner.fill_buf()).is_empty() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let n = try!(self.inner.read(&mut buf[..max]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:172:19
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:189:45
[INFO] [stdout]     |
[INFO] [stdout] 189 |         if self.limit == 0 || self.limit == try!(self.fill_buf()).len() as u64 {
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let buf = try!(self.inner.grow_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:206:19
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let amt = try!(self.inner.write(&buf[..amt]));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:247:19
[INFO] [stdout]     |
[INFO] [stdout] 247 |             match try!(self.first.read(buf)) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:261:19
[INFO] [stdout]     |
[INFO] [stdout] 261 |             match try!(self.first.fill_buf()) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/iter.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |             match try!(self.vec[0].read(buf)) {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/iter.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |             if try!(self.vec[0].fill_buf()).len() == 0 {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]   --> src/utf8/read.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(use_utf8_error_len)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]   --> src/utf8/read.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[cfg(not(use_utf8_error_len))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |             let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:112:25
[INFO] [stdout]     |
[INFO] [stdout] 112 |             (buf.len(), try!(utf8_valid_up_to(buf)))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 valid_up_to = try!(utf8_valid_up_to(try!(self.inner.grow_buf())));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:116:53
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 valid_up_to = try!(utf8_valid_up_to(try!(self.inner.grow_buf())));
[INFO] [stdout]     |                                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:119:19
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let start = try!(utf8_valid_up_to(try!(self.inner.fill_buf())));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:167:43
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let start = try!(utf8_valid_up_to(try!(self.inner.fill_buf())));
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let buf = try!(self.inner.grow_buf());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:171:28
[INFO] [stdout]     |
[INFO] [stdout] 171 |             valid_up_to += try!(utf8_valid_up_to(&buf[valid_up_to..]));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:173:19
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:242:33
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 let available = try!(self.fill_buf_str());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:319:21
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     try!(self.grow_buf_str())
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |                     try!(self.fill_buf_str())
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufread.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 try!(buf.write(available))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufread.rs:189:33
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 let available = try!(BufRead::fill_buf(self));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bufreadgrow.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let len = try!(self.fill_buf()).len();
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bufreadgrow.rs:85:23
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 while try!(self.grow_buf()).len() < size {}
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:123:45
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:123:76
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:168:45
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:168:76
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             try!(writer.write(buf))
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |             let buf = try!(reader.fill_buf());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:88:23
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let buf = try!(reader.fill_buf());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:95:35
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let written = try!(writer.write(&buf[..i + 1]));
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 None => (false, try!(writer.write(buf))),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/mock.rs:79:19
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let amt = try!(self.inner.read(buf));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/bufread.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "aa83a440d04af0fe3fc30a1439f0b8f0bce9ec083178d4566271aee85749b80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa83a440d04af0fe3fc30a1439f0b8f0bce9ec083178d4566271aee85749b80f", kill_on_drop: false }`
[INFO] [stdout] aa83a440d04af0fe3fc30a1439f0b8f0bce9ec083178d4566271aee85749b80f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c77760581c410c8b2c713dc49ff5c9ea50ec8b2874ddd30dbbcf9db370a09def
[INFO] running `Command { std: "docker" "start" "-a" "c77760581c410c8b2c713dc49ff5c9ea50ec8b2874ddd30dbbcf9db370a09def", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/impls/mod.rs:151:15
[INFO] [stdout]     |
[INFO] [stdout] 151 |         match try!(self.read_into_buf()) {
[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/adapt/mod.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 try!(self.inner.seek(std::io::SeekFrom::Start(0)));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             try!(self.inner.seek(std::io::SeekFrom::Start(0)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |         if try!(self.inner.fill_buf()).is_empty() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let n = try!(self.inner.read(&mut buf[..max]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:172:19
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:189:45
[INFO] [stdout]     |
[INFO] [stdout] 189 |         if self.limit == 0 || self.limit == try!(self.fill_buf()).len() as u64 {
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let buf = try!(self.inner.grow_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:206:19
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let amt = try!(self.inner.write(&buf[..amt]));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:247:19
[INFO] [stdout]     |
[INFO] [stdout] 247 |             match try!(self.first.read(buf)) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:261:19
[INFO] [stdout]     |
[INFO] [stdout] 261 |             match try!(self.first.fill_buf()) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/iter.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |             match try!(self.vec[0].read(buf)) {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/iter.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |             if try!(self.vec[0].fill_buf()).len() == 0 {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]   --> src/utf8/read.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(use_utf8_error_len)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]   --> src/utf8/read.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[cfg(not(use_utf8_error_len))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |             let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:112:25
[INFO] [stdout]     |
[INFO] [stdout] 112 |             (buf.len(), try!(utf8_valid_up_to(buf)))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 valid_up_to = try!(utf8_valid_up_to(try!(self.inner.grow_buf())));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:116:53
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 valid_up_to = try!(utf8_valid_up_to(try!(self.inner.grow_buf())));
[INFO] [stdout]     |                                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:119:19
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let start = try!(utf8_valid_up_to(try!(self.inner.fill_buf())));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:167:43
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let start = try!(utf8_valid_up_to(try!(self.inner.fill_buf())));
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let buf = try!(self.inner.grow_buf());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:171:28
[INFO] [stdout]     |
[INFO] [stdout] 171 |             valid_up_to += try!(utf8_valid_up_to(&buf[valid_up_to..]));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:173:19
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:242:33
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 let available = try!(self.fill_buf_str());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:319:21
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     try!(self.grow_buf_str())
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |                     try!(self.fill_buf_str())
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufread.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 try!(buf.write(available))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufread.rs:189:33
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 let available = try!(BufRead::fill_buf(self));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bufreadgrow.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let len = try!(self.fill_buf()).len();
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bufreadgrow.rs:85:23
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 while try!(self.grow_buf()).len() < size {}
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:123:45
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:123:76
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:168:45
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling netio v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:168:76
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             try!(writer.write(buf))
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |             let buf = try!(reader.fill_buf());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:88:23
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let buf = try!(reader.fill_buf());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:95:35
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let written = try!(writer.write(&buf[..i + 1]));
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 None => (false, try!(writer.write(buf))),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/mock.rs:79:19
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let amt = try!(self.inner.read(buf));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/bufread.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/impls/mod.rs:151:15
[INFO] [stdout]     |
[INFO] [stdout] 151 |         match try!(self.read_into_buf()) {
[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/adapt/mod.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 try!(self.inner.seek(std::io::SeekFrom::Start(0)));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             try!(self.inner.seek(std::io::SeekFrom::Start(0)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |         if try!(self.inner.fill_buf()).is_empty() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let n = try!(self.inner.read(&mut buf[..max]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:172:19
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:189:45
[INFO] [stdout]     |
[INFO] [stdout] 189 |         if self.limit == 0 || self.limit == try!(self.fill_buf()).len() as u64 {
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let buf = try!(self.inner.grow_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:206:19
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let amt = try!(self.inner.write(&buf[..amt]));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:247:19
[INFO] [stdout]     |
[INFO] [stdout] 247 |             match try!(self.first.read(buf)) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/adapt/mod.rs:261:19
[INFO] [stdout]     |
[INFO] [stdout] 261 |             match try!(self.first.fill_buf()) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/iter.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |             match try!(self.vec[0].read(buf)) {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/iter.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |             if try!(self.vec[0].fill_buf()).len() == 0 {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]   --> src/utf8/read.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(use_utf8_error_len)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]   --> src/utf8/read.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[cfg(not(use_utf8_error_len))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |             let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:112:25
[INFO] [stdout]     |
[INFO] [stdout] 112 |             (buf.len(), try!(utf8_valid_up_to(buf)))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 valid_up_to = try!(utf8_valid_up_to(try!(self.inner.grow_buf())));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:116:53
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 valid_up_to = try!(utf8_valid_up_to(try!(self.inner.grow_buf())));
[INFO] [stdout]     |                                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:119:19
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let start = try!(utf8_valid_up_to(try!(self.inner.fill_buf())));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:167:43
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let start = try!(utf8_valid_up_to(try!(self.inner.fill_buf())));
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let buf = try!(self.inner.grow_buf());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:171:28
[INFO] [stdout]     |
[INFO] [stdout] 171 |             valid_up_to += try!(utf8_valid_up_to(&buf[valid_up_to..]));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:173:19
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let buf = try!(self.inner.fill_buf());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:242:33
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 let available = try!(self.fill_buf_str());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:319:21
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     try!(self.grow_buf_str())
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/utf8/read.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |                     try!(self.fill_buf_str())
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `never`
[INFO] [stdout]    --> src/utf8/read.rs:543:11
[INFO] [stdout]     |
[INFO] [stdout] 543 |     #[cfg(never)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(never)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(never)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `never`
[INFO] [stdout]    --> src/utf8/read.rs:566:11
[INFO] [stdout]     |
[INFO] [stdout] 566 |     #[cfg(never)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(never)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(never)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `never`
[INFO] [stdout]    --> src/utf8/read.rs:578:11
[INFO] [stdout]     |
[INFO] [stdout] 578 |     #[cfg(never)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(never)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(never)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:590:11
[INFO] [stdout]     |
[INFO] [stdout] 590 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:602:11
[INFO] [stdout]     |
[INFO] [stdout] 602 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:614:11
[INFO] [stdout]     |
[INFO] [stdout] 614 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:626:11
[INFO] [stdout]     |
[INFO] [stdout] 626 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:638:11
[INFO] [stdout]     |
[INFO] [stdout] 638 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:660:11
[INFO] [stdout]     |
[INFO] [stdout] 660 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:672:11
[INFO] [stdout]     |
[INFO] [stdout] 672 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:684:11
[INFO] [stdout]     |
[INFO] [stdout] 684 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:706:11
[INFO] [stdout]     |
[INFO] [stdout] 706 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:718:11
[INFO] [stdout]     |
[INFO] [stdout] 718 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:730:11
[INFO] [stdout]     |
[INFO] [stdout] 730 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:752:11
[INFO] [stdout]     |
[INFO] [stdout] 752 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:764:11
[INFO] [stdout]     |
[INFO] [stdout] 764 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `use_utf8_error_len`
[INFO] [stdout]    --> src/utf8/read.rs:776:11
[INFO] [stdout]     |
[INFO] [stdout] 776 |     #[cfg(use_utf8_error_len)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(use_utf8_error_len)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(use_utf8_error_len)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufread.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 try!(buf.write(available))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufread.rs:189:33
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 let available = try!(BufRead::fill_buf(self));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bufreadgrow.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let len = try!(self.fill_buf()).len();
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bufreadgrow.rs:85:23
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 while try!(self.grow_buf()).len() < size {}
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:123:45
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:123:76
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:168:45
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bufreadgrow.rs:168:76
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 let available = if extend { try!(self.grow_buf()) } else { try!(self.fill_buf()) };
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             try!(writer.write(buf))
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |             let buf = try!(reader.fill_buf());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:88:23
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let buf = try!(reader.fill_buf());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:95:35
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let written = try!(writer.write(&buf[..i + 1]));
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/copy.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 None => (false, try!(writer.write(buf))),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/mock.rs:79:19
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let amt = try!(self.inner.read(buf));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/bufread.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "c77760581c410c8b2c713dc49ff5c9ea50ec8b2874ddd30dbbcf9db370a09def", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c77760581c410c8b2c713dc49ff5c9ea50ec8b2874ddd30dbbcf9db370a09def", kill_on_drop: false }`
[INFO] [stdout] c77760581c410c8b2c713dc49ff5c9ea50ec8b2874ddd30dbbcf9db370a09def