[INFO] fetching crate reader-writer 0.0.2...
[INFO] testing reader-writer-0.0.2 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate reader-writer 0.0.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate reader-writer 0.0.2
[INFO] finished tweaking crates.io crate reader-writer 0.0.2
[INFO] tweaked toml for crates.io crate reader-writer 0.0.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate reader-writer 0.0.2 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `reader-writer` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750
[INFO] running `Command { std: "docker" "start" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `reader-writer` (manifest) generated 1 warning
[INFO] [stderr]    Compiling reader-writer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/reader.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let len = match try!(self.read_u16()) {
[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/reader.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let n = try!(self.read_bytes(&mut buf[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         try!(self.write_u16(buf.len() as u16));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |     read: &'a mut Read
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     read: &'a mut dyn Read
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writer.rs:72:20
[INFO] [stdout]    |
[INFO] [stdout] 72 |     write: &'a mut Write
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 72 |     write: &'a mut dyn Write
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut dyn Read) -> BasicReader {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writer.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut dyn Write) -> BasicWriter {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/reader.rs:18:39
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader {
[INFO] [stdout]    |                       --              ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader<'a> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/writer.rs:76:23
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter {
[INFO] [stdout]    |                       ^^^^^^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter<'_> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `reader-writer` (manifest) generated 1 warning
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/reader.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let len = match try!(self.read_u16()) {
[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/reader.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let n = try!(self.read_bytes(&mut buf[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         try!(self.write_u16(buf.len() as u16));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |     read: &'a mut Read
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     read: &'a mut dyn Read
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writer.rs:72:20
[INFO] [stdout]    |
[INFO] [stdout] 72 |     write: &'a mut Write
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 72 |     write: &'a mut dyn Write
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut dyn Read) -> BasicReader {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writer.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut dyn Write) -> BasicWriter {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/reader.rs:18:39
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader {
[INFO] [stdout]    |                       --              ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader<'a> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/writer.rs:76:23
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter {
[INFO] [stdout]    |                       ^^^^^^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter<'_> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling reader-writer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/reader.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let len = match try!(self.read_u16()) {
[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/reader.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let n = try!(self.read_bytes(&mut buf[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         try!(self.write_u16(buf.len() as u16));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |     read: &'a mut Read
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     read: &'a mut dyn Read
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writer.rs:72:20
[INFO] [stdout]    |
[INFO] [stdout] 72 |     write: &'a mut Write
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 72 |     write: &'a mut dyn Write
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut dyn Read) -> BasicReader {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writer.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut dyn Write) -> BasicWriter {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/reader.rs:18:39
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader {
[INFO] [stdout]    |                       --              ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(read: &'a mut Read) -> BasicReader<'a> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/writer.rs:76:23
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter {
[INFO] [stdout]    |                       ^^^^^^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(write: &mut Write) -> BasicWriter<'_> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:17:24
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 panic!(format!("unexpected error: {}", err))
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 17 -                 panic!(format!("unexpected error: {}", err))
[INFO] [stdout] 17 +                 panic!("unexpected error: {}", err)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:97:32
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 assert!(false, format!("unexpected number of bytes read: {}", n));
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 97 -                 assert!(false, format!("unexpected number of bytes read: {}", n));
[INFO] [stdout] 97 +                 assert!(false, "unexpected number of bytes read: {}", n);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:100:32
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 assert!(false, format!("read_bytes() failed unexpectedly: {}", err));
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 100 -                 assert!(false, format!("read_bytes() failed unexpectedly: {}", err));
[INFO] [stdout] 100 +                 assert!(false, "read_bytes() failed unexpectedly: {}", err);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:108:32
[INFO] [stdout]     |
[INFO] [stdout] 108 |             Err(err) => panic!(format!("failed to read string: {}", err))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 108 -             Err(err) => panic!(format!("failed to read string: {}", err))
[INFO] [stdout] 108 +             Err(err) => panic!("failed to read string: {}", err)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] 
[INFO] [stderr] warning: `reader-writer` (manifest) generated 1 warning
[INFO] [stdout] running 8 tests
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout] test tests::count_u32_four_bytes ... ok
[INFO] [stderr]   --> src/reader.rs:95:25
[INFO] [stdout] test tests::can_write_and_read ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::count_u64_eight_bytes ... ok
[INFO] [stderr] 95 |         let len = match try!(self.read_u16()) {
[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/reader.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let n = try!(self.read_bytes(&mut buf[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/writer.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |         try!(self.write_u16(buf.len() as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:14:19
[INFO] [stderr]    |
[INFO] [stderr] 14 |     read: &'a mut Read
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 14 |     read: &'a mut dyn Read
[INFO] [stderr]    |                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/writer.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 |     write: &'a mut Write
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 72 |     write: &'a mut dyn Write
[INFO] [stderr]    |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:18:30
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(read: &'a mut Read) -> BasicReader {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(read: &'a mut dyn Read) -> BasicReader {
[INFO] [stderr]    |                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/writer.rs:76:28
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn new(write: &mut Write) -> BasicWriter {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn new(write: &mut dyn Write) -> BasicWriter {
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/reader.rs:18:39
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(read: &'a mut Read) -> BasicReader {
[INFO] [stderr]    |                       --              ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(read: &'a mut Read) -> BasicReader<'a> {
[INFO] [stderr]    |                                                  ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/writer.rs:76:23
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn new(write: &mut Write) -> BasicWriter {
[INFO] [stderr]    |                       ^^^^^^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn new(write: &mut Write) -> BasicWriter<'_> {
[INFO] [stderr]    |                                                 ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `reader-writer` (lib) generated 9 warnings (run `cargo fix --lib -p reader-writer` to apply 6 suggestions)
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:17:24
[INFO] [stderr]    |
[INFO] [stderr] 17 |                 panic!(format!("unexpected error: {}", err))
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 17 -                 panic!(format!("unexpected error: {}", err))
[INFO] [stderr] 17 +                 panic!("unexpected error: {}", err)
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:97:32
[INFO] [stderr]    |
[INFO] [stderr] 97 |                 assert!(false, format!("unexpected number of bytes read: {}", n));
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 97 -                 assert!(false, format!("unexpected number of bytes read: {}", n));
[INFO] [stderr] 97 +                 assert!(false, "unexpected number of bytes read: {}", n);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:100:32
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 assert!(false, format!("read_bytes() failed unexpectedly: {}", err));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 100 -                 assert!(false, format!("read_bytes() failed unexpectedly: {}", err));
[INFO] [stderr] 100 +                 assert!(false, "read_bytes() failed unexpectedly: {}", err);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:108:32
[INFO] [stderr]     |
[INFO] [stderr] 108 |             Err(err) => panic!(format!("failed to read string: {}", err))
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 108 -             Err(err) => panic!(format!("failed to read string: {}", err))
[INFO] [stderr] 108 +             Err(err) => panic!("failed to read string: {}", err)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `reader-writer` (lib test) generated 13 warnings (9 duplicates) (run `cargo fix --lib -p reader-writer --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/reader_writer-1d01c40930367a8b)
[INFO] [stdout] test tests::count_u16_two_bytes ... ok
[INFO] [stdout] test tests::count_str ... ok
[INFO] [stdout] test tests::count_u8_one_byte ... ok
[INFO] [stdout] test tests::count_string ... ok
[INFO] [stdout] test tests::count_bytes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests reader_writer
[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] running `Command { std: "docker" "inspect" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750", kill_on_drop: false }`
[INFO] [stdout] 070028534ae0d2fc99f041e6f699216eb7c0f69271cf532f8e39b40400aab750
