[INFO] fetching crate alco 0.1.0...
[INFO] testing alco-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate alco 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate alco 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alco 0.1.0
[INFO] finished tweaking crates.io crate alco 0.1.0
[INFO] tweaked toml for crates.io crate alco 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa3d10f28991ce4d013318dd415ba14750b2df904a5710f2b52363b020bbc0bf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fa3d10f28991ce4d013318dd415ba14750b2df904a5710f2b52363b020bbc0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa3d10f28991ce4d013318dd415ba14750b2df904a5710f2b52363b020bbc0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa3d10f28991ce4d013318dd415ba14750b2df904a5710f2b52363b020bbc0bf", kill_on_drop: false }`
[INFO] [stdout] fa3d10f28991ce4d013318dd415ba14750b2df904a5710f2b52363b020bbc0bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6efada5dc0b6568faf335fd8a9f09a79f8cdd9e8ee48c6e15e3c181046310dad
[INFO] running `Command { std: "docker" "start" "-a" "6efada5dc0b6568faf335fd8a9f09a79f8cdd9e8ee48c6e15e3c181046310dad", kill_on_drop: false }`
[INFO] [stderr]    Compiling alco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `arch`
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     arch: &str,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_arch`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_calibration`
[INFO] [stdout]    --> src/lib.rs:241:27
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let (calibration, old_calibration) =
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_calibration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_stats`
[INFO] [stdout]    --> src/lib.rs:248:25
[INFO] [stdout]     |
[INFO] [stdout] 248 |             let (stats, old_stats) = run_bench(&arch, &executable, i, &[a], name, allow_aslr  );
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_stats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "6efada5dc0b6568faf335fd8a9f09a79f8cdd9e8ee48c6e15e3c181046310dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6efada5dc0b6568faf335fd8a9f09a79f8cdd9e8ee48c6e15e3c181046310dad", kill_on_drop: false }`
[INFO] [stdout] 6efada5dc0b6568faf335fd8a9f09a79f8cdd9e8ee48c6e15e3c181046310dad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed5fc6e869c231b703bf4c773b202875c26885380e55f174a77b0c144cf9c7e9
[INFO] running `Command { std: "docker" "start" "-a" "ed5fc6e869c231b703bf4c773b202875c26885380e55f174a77b0c144cf9c7e9", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `arch`
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     arch: &str,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_arch`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_calibration`
[INFO] [stdout]    --> src/lib.rs:241:27
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let (calibration, old_calibration) =
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_calibration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_stats`
[INFO] [stdout]    --> src/lib.rs:248:25
[INFO] [stdout]     |
[INFO] [stdout] 248 |             let (stats, old_stats) = run_bench(&arch, &executable, i, &[a], name, allow_aslr  );
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_stats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling alco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arch`
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     arch: &str,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_arch`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_calibration`
[INFO] [stdout]    --> src/lib.rs:241:27
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let (calibration, old_calibration) =
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_calibration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_stats`
[INFO] [stdout]    --> src/lib.rs:248:25
[INFO] [stdout]     |
[INFO] [stdout] 248 |             let (stats, old_stats) = run_bench(&arch, &executable, i, &[a], name, allow_aslr  );
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_stats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "ed5fc6e869c231b703bf4c773b202875c26885380e55f174a77b0c144cf9c7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed5fc6e869c231b703bf4c773b202875c26885380e55f174a77b0c144cf9c7e9", kill_on_drop: false }`
[INFO] [stdout] ed5fc6e869c231b703bf4c773b202875c26885380e55f174a77b0c144cf9c7e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 13625a6796aecbb967582a79ce81e7e7c7e1e9ae7540ed08c44897e81432dcf4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13625a6796aecbb967582a79ce81e7e7c7e1e9ae7540ed08c44897e81432dcf4", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `arch`
[INFO] [stderr]   --> src/lib.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     arch: &str,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_arch`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old_calibration`
[INFO] [stderr]    --> src/lib.rs:241:27
[INFO] [stderr]     |
[INFO] [stderr] 241 |         let (calibration, old_calibration) =
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_calibration`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old_stats`
[INFO] [stderr]    --> src/lib.rs:248:25
[INFO] [stderr]     |
[INFO] [stderr] 248 |             let (stats, old_stats) = run_bench(&arch, &executable, i, &[a], name, allow_aslr  );
[INFO] [stderr]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_stats`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arch`
[INFO] [stderr]   --> src/lib.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     arch: &str,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_arch`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old_calibration`
[INFO] [stderr]    --> src/lib.rs:241:27
[INFO] [stderr]     |
[INFO] [stderr] 241 |         let (calibration, old_calibration) =
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_calibration`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old_stats`
[INFO] [stderr]    --> src/lib.rs:248:25
[INFO] [stderr]     |
[INFO] [stderr] 248 |             let (stats, old_stats) = run_bench(&arch, &executable, i, &[a], name, allow_aslr  );
[INFO] [stderr]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_stats`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/alco-a4ec7ba8c8c5a6ff)
[INFO] [stderr]    Doc-tests alco
[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] [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" "13625a6796aecbb967582a79ce81e7e7c7e1e9ae7540ed08c44897e81432dcf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13625a6796aecbb967582a79ce81e7e7c7e1e9ae7540ed08c44897e81432dcf4", kill_on_drop: false }`
[INFO] [stdout] 13625a6796aecbb967582a79ce81e7e7c7e1e9ae7540ed08c44897e81432dcf4