[INFO] fetching crate rcc 0.10.0...
[INFO] testing rcc-0.10.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rcc 0.10.0 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate rcc 0.10.0 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 rcc 0.10.0
[INFO] finished tweaking crates.io crate rcc 0.10.0
[INFO] tweaked toml for crates.io crate rcc 0.10.0 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] crate crates.io crate rcc 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] cf2a79ff014575c74504f15b4edb4f72a9f0a29f728bf063cb804defdad06f0a
[INFO] running `Command { std: "docker" "start" "-a" "cf2a79ff014575c74504f15b4edb4f72a9f0a29f728bf063cb804defdad06f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf2a79ff014575c74504f15b4edb4f72a9f0a29f728bf063cb804defdad06f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf2a79ff014575c74504f15b4edb4f72a9f0a29f728bf063cb804defdad06f0a", kill_on_drop: false }`
[INFO] [stdout] cf2a79ff014575c74504f15b4edb4f72a9f0a29f728bf063cb804defdad06f0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] 59af49a34d78a6da68c8d4349cafa237bc2768e27175dc167c16aa63c72f936a
[INFO] running `Command { std: "docker" "start" "-a" "59af49a34d78a6da68c8d4349cafa237bc2768e27175dc167c16aa63c72f936a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcc v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "59af49a34d78a6da68c8d4349cafa237bc2768e27175dc167c16aa63c72f936a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59af49a34d78a6da68c8d4349cafa237bc2768e27175dc167c16aa63c72f936a", kill_on_drop: false }`
[INFO] [stdout] 59af49a34d78a6da68c8d4349cafa237bc2768e27175dc167c16aa63c72f936a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] 7432a49a9ceb1375fd2443e2f4b5c81a3ff4d8bc8bee668f4d710a7681976e85
[INFO] running `Command { std: "docker" "start" "-a" "7432a49a9ceb1375fd2443e2f4b5c81a3ff4d8bc8bee668f4d710a7681976e85", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcc v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "7432a49a9ceb1375fd2443e2f4b5c81a3ff4d8bc8bee668f4d710a7681976e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7432a49a9ceb1375fd2443e2f4b5c81a3ff4d8bc8bee668f4d710a7681976e85", kill_on_drop: false }`
[INFO] [stdout] 7432a49a9ceb1375fd2443e2f4b5c81a3ff4d8bc8bee668f4d710a7681976e85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] 20eefc1d52a17f62508e349fb1728ef0c32166333cfd0d8b44cb986b961b5f60
[INFO] running `Command { std: "docker" "start" "-a" "20eefc1d52a17f62508e349fb1728ef0c32166333cfd0d8b44cb986b961b5f60", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rcc-2ff4334e3c551aeb)
[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" "20eefc1d52a17f62508e349fb1728ef0c32166333cfd0d8b44cb986b961b5f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eefc1d52a17f62508e349fb1728ef0c32166333cfd0d8b44cb986b961b5f60", kill_on_drop: false }`
[INFO] [stdout] 20eefc1d52a17f62508e349fb1728ef0c32166333cfd0d8b44cb986b961b5f60