[INFO] fetching crate alco 0.1.0...
[INFO] testing alco-0.1.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate alco 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate alco 0.1.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ac25bde14c0e0dc3f48bb8353bdb000e86a26ac7fb5c050b59f64a9080bf0a0
[INFO] running `Command { std: "docker" "start" "-a" "1ac25bde14c0e0dc3f48bb8353bdb000e86a26ac7fb5c050b59f64a9080bf0a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ac25bde14c0e0dc3f48bb8353bdb000e86a26ac7fb5c050b59f64a9080bf0a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac25bde14c0e0dc3f48bb8353bdb000e86a26ac7fb5c050b59f64a9080bf0a0", kill_on_drop: false }`
[INFO] [stdout] 1ac25bde14c0e0dc3f48bb8353bdb000e86a26ac7fb5c050b59f64a9080bf0a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db1d0b5ad875854d767a0cd28da34df13c093e02d30d369a96e6d98bebbd6f6c
[INFO] running `Command { std: "docker" "start" "-a" "db1d0b5ad875854d767a0cd28da34df13c093e02d30d369a96e6d98bebbd6f6c", 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 0.81s
[INFO] running `Command { std: "docker" "inspect" "db1d0b5ad875854d767a0cd28da34df13c093e02d30d369a96e6d98bebbd6f6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db1d0b5ad875854d767a0cd28da34df13c093e02d30d369a96e6d98bebbd6f6c", kill_on_drop: false }`
[INFO] [stdout] db1d0b5ad875854d767a0cd28da34df13c093e02d30d369a96e6d98bebbd6f6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 493da70f6c97f902f97c3546803f530caed047534122bf8e2466fceb3be466bb
[INFO] running `Command { std: "docker" "start" "-a" "493da70f6c97f902f97c3546803f530caed047534122bf8e2466fceb3be466bb", 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] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "493da70f6c97f902f97c3546803f530caed047534122bf8e2466fceb3be466bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493da70f6c97f902f97c3546803f530caed047534122bf8e2466fceb3be466bb", kill_on_drop: false }`
[INFO] [stdout] 493da70f6c97f902f97c3546803f530caed047534122bf8e2466fceb3be466bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 67b134a287fee7544fa6eab1023ac633db80e0243dd772fd9a3f333fb0536477
[INFO] running `Command { std: "docker" "start" "-a" "67b134a287fee7544fa6eab1023ac633db80e0243dd772fd9a3f333fb0536477", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `arch`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/lib.rs:60:5
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 60 |     arch: &str,
[INFO] [stdout] 
[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: `alco` (lib) generated 3 warnings
[INFO] [stderr] warning: `alco` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[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] running `Command { std: "docker" "inspect" "67b134a287fee7544fa6eab1023ac633db80e0243dd772fd9a3f333fb0536477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b134a287fee7544fa6eab1023ac633db80e0243dd772fd9a3f333fb0536477", kill_on_drop: false }`
[INFO] [stdout] 67b134a287fee7544fa6eab1023ac633db80e0243dd772fd9a3f333fb0536477