[INFO] fetching crate power-of-two 0.1.0...
[INFO] testing power-of-two-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate power-of-two 0.1.0 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate power-of-two 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate power-of-two 0.1.0
[INFO] finished tweaking crates.io crate power-of-two 0.1.0
[INFO] tweaked toml for crates.io crate power-of-two 0.1.0 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded power-of-two-impl v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d12b21f422ef0be67a9c73eb233ffd7e1af01579fcb3266dfa0329e2cbacfe43
[INFO] running `Command { std: "docker" "start" "-a" "d12b21f422ef0be67a9c73eb233ffd7e1af01579fcb3266dfa0329e2cbacfe43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d12b21f422ef0be67a9c73eb233ffd7e1af01579fcb3266dfa0329e2cbacfe43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d12b21f422ef0be67a9c73eb233ffd7e1af01579fcb3266dfa0329e2cbacfe43", kill_on_drop: false }`
[INFO] [stdout] d12b21f422ef0be67a9c73eb233ffd7e1af01579fcb3266dfa0329e2cbacfe43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4abdc56b73fc76c230b84a9e7c72aa3eb55736c8b383d122611b077047116e00
[INFO] running `Command { std: "docker" "start" "-a" "4abdc56b73fc76c230b84a9e7c72aa3eb55736c8b383d122611b077047116e00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling power-of-two-impl v0.1.0
[INFO] [stderr]    Compiling power-of-two v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `Command { std: "docker" "inspect" "4abdc56b73fc76c230b84a9e7c72aa3eb55736c8b383d122611b077047116e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4abdc56b73fc76c230b84a9e7c72aa3eb55736c8b383d122611b077047116e00", kill_on_drop: false }`
[INFO] [stdout] 4abdc56b73fc76c230b84a9e7c72aa3eb55736c8b383d122611b077047116e00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b7fb6800956e03a04c4a2244075a1916460755bd7274959fe0f75e70b500323
[INFO] running `Command { std: "docker" "start" "-a" "3b7fb6800956e03a04c4a2244075a1916460755bd7274959fe0f75e70b500323", kill_on_drop: false }`
[INFO] [stderr]    Compiling power-of-two v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "3b7fb6800956e03a04c4a2244075a1916460755bd7274959fe0f75e70b500323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b7fb6800956e03a04c4a2244075a1916460755bd7274959fe0f75e70b500323", kill_on_drop: false }`
[INFO] [stdout] 3b7fb6800956e03a04c4a2244075a1916460755bd7274959fe0f75e70b500323
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5248fb6843c0983e4a0de3465dc7a7c5fc3df3a033543bfe9be4bb2a3d885f34
[INFO] running `Command { std: "docker" "start" "-a" "5248fb6843c0983e4a0de3465dc7a7c5fc3df3a033543bfe9be4bb2a3d885f34", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/power_of_two-9d73d3a77902eb27)
[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]      Running tests/check.rs (/opt/rustwide/target/debug/deps/check-f7de658a9538426c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test check_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests power-of-two
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - power_of_two (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.84s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5248fb6843c0983e4a0de3465dc7a7c5fc3df3a033543bfe9be4bb2a3d885f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5248fb6843c0983e4a0de3465dc7a7c5fc3df3a033543bfe9be4bb2a3d885f34", kill_on_drop: false }`
[INFO] [stdout] 5248fb6843c0983e4a0de3465dc7a7c5fc3df3a033543bfe9be4bb2a3d885f34