[INFO] fetching crate yarr-common 0.0.0...
[INFO] testing yarr-common-0.0.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate yarr-common 0.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate yarr-common 0.0.0
[INFO] finished tweaking crates.io crate yarr-common 0.0.0
[INFO] tweaked toml for crates.io crate yarr-common 0.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate yarr-common 0.0.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `num-traits` dependency)
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50cedf09ccf354646a976bf55d0fe60188f91cc6076285ec9f0475e80b9f8bc7
[INFO] running `Command { std: "docker" "start" "-a" "50cedf09ccf354646a976bf55d0fe60188f91cc6076285ec9f0475e80b9f8bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50cedf09ccf354646a976bf55d0fe60188f91cc6076285ec9f0475e80b9f8bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50cedf09ccf354646a976bf55d0fe60188f91cc6076285ec9f0475e80b9f8bc7", kill_on_drop: false }`
[INFO] [stdout] 50cedf09ccf354646a976bf55d0fe60188f91cc6076285ec9f0475e80b9f8bc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbf4e6ab6afd704d7d7308db7115492aa19e9fa44a220b5043299ec70d35768d
[INFO] running `Command { std: "docker" "start" "-a" "cbf4e6ab6afd704d7d7308db7115492aa19e9fa44a220b5043299ec70d35768d", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `num-traits` dependency)
[INFO] [stderr]    Compiling yarr-common v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub struct MutexErr<'a>(&'a str);
[INFO] [stdout]    |                --------     ^^^^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `MutexErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |         pub fn try_lock(&self) -> Result<MutexGuard<T>, MutexErr> {
[INFO] [stdout]    |                         ^^^^^            ^^^^^^^^^^^^^  ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |                |
[INFO] [stdout]    |                         |                the same lifetime is hidden here
[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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |         pub fn try_lock(&self) -> Result<MutexGuard<'_, T>, MutexErr<'_>> {
[INFO] [stdout]    |                                                     +++             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |         pub fn lock(&self) -> MutexGuard<T> {
[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] 44 |         pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "cbf4e6ab6afd704d7d7308db7115492aa19e9fa44a220b5043299ec70d35768d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbf4e6ab6afd704d7d7308db7115492aa19e9fa44a220b5043299ec70d35768d", kill_on_drop: false }`
[INFO] [stdout] cbf4e6ab6afd704d7d7308db7115492aa19e9fa44a220b5043299ec70d35768d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e858a381e5900c3041a695ca991984b369ed0954029a257a381ca834932d05b9
[INFO] running `Command { std: "docker" "start" "-a" "e858a381e5900c3041a695ca991984b369ed0954029a257a381ca834932d05b9", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `num-traits` dependency)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub struct MutexErr<'a>(&'a str);
[INFO] [stdout]    |                --------     ^^^^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `MutexErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |         pub fn try_lock(&self) -> Result<MutexGuard<T>, MutexErr> {
[INFO] [stdout]    |                         ^^^^^            ^^^^^^^^^^^^^  ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |                |
[INFO] [stdout]    |                         |                the same lifetime is hidden here
[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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |         pub fn try_lock(&self) -> Result<MutexGuard<'_, T>, MutexErr<'_>> {
[INFO] [stdout]    |                                                     +++             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |         pub fn lock(&self) -> MutexGuard<T> {
[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] 44 |         pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling yarr-common v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub struct MutexErr<'a>(&'a str);
[INFO] [stdout]    |                --------     ^^^^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `MutexErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |         pub fn try_lock(&self) -> Result<MutexGuard<T>, MutexErr> {
[INFO] [stdout]    |                         ^^^^^            ^^^^^^^^^^^^^  ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |                |
[INFO] [stdout]    |                         |                the same lifetime is hidden here
[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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |         pub fn try_lock(&self) -> Result<MutexGuard<'_, T>, MutexErr<'_>> {
[INFO] [stdout]    |                                                     +++             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |         pub fn lock(&self) -> MutexGuard<T> {
[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] 44 |         pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "e858a381e5900c3041a695ca991984b369ed0954029a257a381ca834932d05b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e858a381e5900c3041a695ca991984b369ed0954029a257a381ca834932d05b9", kill_on_drop: false }`
[INFO] [stdout] e858a381e5900c3041a695ca991984b369ed0954029a257a381ca834932d05b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 80c56b4dabf1a68efccaee1a9164941b0bbc11f57f764bdfbe205e0e6cba5433
[INFO] running `Command { std: "docker" "start" "-a" "80c56b4dabf1a68efccaee1a9164941b0bbc11f57f764bdfbe205e0e6cba5433", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `num-traits` dependency)
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/lib.rs:26:29
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub struct MutexErr<'a>(&'a str);
[INFO] [stderr]    |                --------     ^^^^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `MutexErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |         pub fn try_lock(&self) -> Result<MutexGuard<T>, MutexErr> {
[INFO] [stderr]    |                         ^^^^^            ^^^^^^^^^^^^^  ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                         |                |
[INFO] [stderr]    |                         |                the same lifetime is hidden here
[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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 36 |         pub fn try_lock(&self) -> Result<MutexGuard<'_, T>, MutexErr<'_>> {
[INFO] [stderr]    |                                                     +++             ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |         pub fn lock(&self) -> MutexGuard<T> {
[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] 44 |         pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stderr]    |                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: `yarr-common` (lib) generated 3 warnings (run `cargo fix --lib -p yarr-common` to apply 2 suggestions)
[INFO] [stderr] warning: `yarr-common` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/yarr_common-09036919f6065714)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yarr_common
[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" "80c56b4dabf1a68efccaee1a9164941b0bbc11f57f764bdfbe205e0e6cba5433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80c56b4dabf1a68efccaee1a9164941b0bbc11f57f764bdfbe205e0e6cba5433", kill_on_drop: false }`
[INFO] [stdout] 80c56b4dabf1a68efccaee1a9164941b0bbc11f57f764bdfbe205e0e6cba5433
