[INFO] fetching crate thin-boxed-slice 0.2.5...
[INFO] testing thin-boxed-slice-0.2.5 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate thin-boxed-slice 0.2.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate thin-boxed-slice 0.2.5
[INFO] finished tweaking crates.io crate thin-boxed-slice 0.2.5
[INFO] tweaked toml for crates.io crate thin-boxed-slice 0.2.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate thin-boxed-slice 0.2.5 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding allocator-api2 v0.2.21 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cb7e027f8e000195930bbf1ed974a2ff90279797d0ad93f2f6d7912a05e0d67
[INFO] running `Command { std: "docker" "start" "-a" "5cb7e027f8e000195930bbf1ed974a2ff90279797d0ad93f2f6d7912a05e0d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cb7e027f8e000195930bbf1ed974a2ff90279797d0ad93f2f6d7912a05e0d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cb7e027f8e000195930bbf1ed974a2ff90279797d0ad93f2f6d7912a05e0d67", kill_on_drop: false }`
[INFO] [stdout] 5cb7e027f8e000195930bbf1ed974a2ff90279797d0ad93f2f6d7912a05e0d67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86d7cdf890e92ee8cba0984ae47a07171b1ec6c87c8ad79756b44f6feab0df34
[INFO] running `Command { std: "docker" "start" "-a" "86d7cdf890e92ee8cba0984ae47a07171b1ec6c87c8ad79756b44f6feab0df34", kill_on_drop: false }`
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling thin-boxed-slice v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `Eq::assert_receiver_is_total_eq` should never be implemented by hand
[INFO] [stdout]    --> src/lib.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn assert_receiver_is_total_eq(&self) {}
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method was used to add checks to the `Eq` derive macro
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #152336 <https://github.com/rust-lang/rust/issues/152336>
[INFO] [stdout]     = note: `#[warn(internal_eq_trait_method_impls)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "86d7cdf890e92ee8cba0984ae47a07171b1ec6c87c8ad79756b44f6feab0df34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d7cdf890e92ee8cba0984ae47a07171b1ec6c87c8ad79756b44f6feab0df34", kill_on_drop: false }`
[INFO] [stdout] 86d7cdf890e92ee8cba0984ae47a07171b1ec6c87c8ad79756b44f6feab0df34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d93aaf3460bbbfd931f0527e5bbd88f64d1de3c857d8ad124ead0e59a8a8386c
[INFO] running `Command { std: "docker" "start" "-a" "d93aaf3460bbbfd931f0527e5bbd88f64d1de3c857d8ad124ead0e59a8a8386c", kill_on_drop: false }`
[INFO] [stdout] warning: `Eq::assert_receiver_is_total_eq` should never be implemented by hand
[INFO] [stdout]    --> src/lib.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn assert_receiver_is_total_eq(&self) {}
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method was used to add checks to the `Eq` derive macro
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #152336 <https://github.com/rust-lang/rust/issues/152336>
[INFO] [stdout]     = note: `#[warn(internal_eq_trait_method_impls)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thin-boxed-slice v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `Eq::assert_receiver_is_total_eq` should never be implemented by hand
[INFO] [stdout]    --> src/lib.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn assert_receiver_is_total_eq(&self) {}
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method was used to add checks to the `Eq` derive macro
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #152336 <https://github.com/rust-lang/rust/issues/152336>
[INFO] [stdout]     = note: `#[warn(internal_eq_trait_method_impls)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "d93aaf3460bbbfd931f0527e5bbd88f64d1de3c857d8ad124ead0e59a8a8386c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d93aaf3460bbbfd931f0527e5bbd88f64d1de3c857d8ad124ead0e59a8a8386c", kill_on_drop: false }`
[INFO] [stdout] d93aaf3460bbbfd931f0527e5bbd88f64d1de3c857d8ad124ead0e59a8a8386c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5a3a6d712ed917336c35af0f84007a89ee7d72c3aa090714daa9a36e2f521df0
[INFO] running `Command { std: "docker" "start" "-a" "5a3a6d712ed917336c35af0f84007a89ee7d72c3aa090714daa9a36e2f521df0", kill_on_drop: false }`
[INFO] [stderr] warning: `Eq::assert_receiver_is_total_eq` should never be implemented by hand
[INFO] [stderr]    --> src/lib.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn assert_receiver_is_total_eq(&self) {}
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this method was used to add checks to the `Eq` derive macro
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #152336 <https://github.com/rust-lang/rust/issues/152336>
[INFO] [stderr]     = note: `#[warn(internal_eq_trait_method_impls)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `thin-boxed-slice` (lib) generated 1 warning
[INFO] [stderr] warning: `thin-boxed-slice` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/thin_boxed_slice-1f96ccf27c3dc923)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests thin_boxed_slice
[INFO] [stdout] test tests::tests::option_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5a3a6d712ed917336c35af0f84007a89ee7d72c3aa090714daa9a36e2f521df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a3a6d712ed917336c35af0f84007a89ee7d72c3aa090714daa9a36e2f521df0", kill_on_drop: false }`
[INFO] [stdout] 5a3a6d712ed917336c35af0f84007a89ee7d72c3aa090714daa9a36e2f521df0
