[INFO] fetching crate mcc 0.1.0...
[INFO] testing mcc-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mcc 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mcc 0.1.0
[INFO] finished tweaking crates.io crate mcc 0.1.0
[INFO] tweaked toml for crates.io crate mcc 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcc 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.5.51)
[INFO] [stderr]       Adding env_logger v0.6.2 (available: v0.11.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cb3a266ffc0d2b2a8a6dd03f84502dd4f450e21d3d1090c823a9d2ef29e90c3
[INFO] running `Command { std: "docker" "start" "-a" "7cb3a266ffc0d2b2a8a6dd03f84502dd4f450e21d3d1090c823a9d2ef29e90c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cb3a266ffc0d2b2a8a6dd03f84502dd4f450e21d3d1090c823a9d2ef29e90c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb3a266ffc0d2b2a8a6dd03f84502dd4f450e21d3d1090c823a9d2ef29e90c3", kill_on_drop: false }`
[INFO] [stdout] 7cb3a266ffc0d2b2a8a6dd03f84502dd4f450e21d3d1090c823a9d2ef29e90c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a6a30cd71abc7abb0bebf088811a353cd37e31b6020c60067eafa4b23fa2543
[INFO] running `Command { std: "docker" "start" "-a" "8a6a30cd71abc7abb0bebf088811a353cd37e31b6020c60067eafa4b23fa2543", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling mcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/tokenizer/mod.rs:62:65
[INFO] [stdout]    |
[INFO] [stdout] 62 | ...                   lexeme: String::from(line.trim().clone()) });
[INFO] [stdout]    |                                                       ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.96s
[INFO] running `Command { std: "docker" "inspect" "8a6a30cd71abc7abb0bebf088811a353cd37e31b6020c60067eafa4b23fa2543", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a6a30cd71abc7abb0bebf088811a353cd37e31b6020c60067eafa4b23fa2543", kill_on_drop: false }`
[INFO] [stdout] 8a6a30cd71abc7abb0bebf088811a353cd37e31b6020c60067eafa4b23fa2543
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab9c5f772090bbc92ca2890abc86c33222cf059af3c58a20640a3990317e459b
[INFO] running `Command { std: "docker" "start" "-a" "ab9c5f772090bbc92ca2890abc86c33222cf059af3c58a20640a3990317e459b", kill_on_drop: false }`
[INFO] [stderr]    Compiling mcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/tokenizer/mod.rs:62:65
[INFO] [stdout]    |
[INFO] [stdout] 62 | ...                   lexeme: String::from(line.trim().clone()) });
[INFO] [stdout]    |                                                       ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "ab9c5f772090bbc92ca2890abc86c33222cf059af3c58a20640a3990317e459b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9c5f772090bbc92ca2890abc86c33222cf059af3c58a20640a3990317e459b", kill_on_drop: false }`
[INFO] [stdout] ab9c5f772090bbc92ca2890abc86c33222cf059af3c58a20640a3990317e459b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee12d8025cbe935974f0ff9aa3521ef6fc5431d66c48fba02133fa8e5826af33
[INFO] running `Command { std: "docker" "start" "-a" "ee12d8025cbe935974f0ff9aa3521ef6fc5431d66c48fba02133fa8e5826af33", kill_on_drop: false }`
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout] 
[INFO] [stderr]   --> src/tokenizer/mod.rs:62:65
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 62 | ...                   lexeme: String::from(line.trim().clone()) });
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                                                       ^^^^^^^^ help: remove this redundant call
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stderr]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mcc` (bin "mcc" test) generated 1 warning (run `cargo fix --bin "mcc" -p mcc --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mcc-a10e05d7b9264a0d)
[INFO] running `Command { std: "docker" "inspect" "ee12d8025cbe935974f0ff9aa3521ef6fc5431d66c48fba02133fa8e5826af33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee12d8025cbe935974f0ff9aa3521ef6fc5431d66c48fba02133fa8e5826af33", kill_on_drop: false }`
[INFO] [stdout] ee12d8025cbe935974f0ff9aa3521ef6fc5431d66c48fba02133fa8e5826af33
