[INFO] fetching crate inv_manager 0.2.0...
[INFO] testing inv_manager-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate inv_manager 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate inv_manager 0.2.0 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 inv_manager 0.2.0
[INFO] finished tweaking crates.io crate inv_manager 0.2.0
[INFO] tweaked toml for crates.io crate inv_manager 0.2.0 written to /workspace/builds/worker-4/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 53561f2efaa5ce4b01dd2bf58c73a135e636744f16a0dca3859957cf7e7b67ac
[INFO] running `Command { std: "docker" "start" "-a" "53561f2efaa5ce4b01dd2bf58c73a135e636744f16a0dca3859957cf7e7b67ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53561f2efaa5ce4b01dd2bf58c73a135e636744f16a0dca3859957cf7e7b67ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53561f2efaa5ce4b01dd2bf58c73a135e636744f16a0dca3859957cf7e7b67ac", kill_on_drop: false }`
[INFO] [stdout] 53561f2efaa5ce4b01dd2bf58c73a135e636744f16a0dca3859957cf7e7b67ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 28f1284fb966142bcf7a3b4fb66bb9bb356de8f4bb77c2098ce53e7c57977703
[INFO] running `Command { std: "docker" "start" "-a" "28f1284fb966142bcf7a3b4fb66bb9bb356de8f4bb77c2098ce53e7c57977703", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling inv_manager v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.75s
[INFO] running `Command { std: "docker" "inspect" "28f1284fb966142bcf7a3b4fb66bb9bb356de8f4bb77c2098ce53e7c57977703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28f1284fb966142bcf7a3b4fb66bb9bb356de8f4bb77c2098ce53e7c57977703", kill_on_drop: false }`
[INFO] [stdout] 28f1284fb966142bcf7a3b4fb66bb9bb356de8f4bb77c2098ce53e7c57977703
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 7459a304a3adecbbf6c72197b4a8d5dd7ad884b3266bb895bb3d0ddcc625b5c0
[INFO] running `Command { std: "docker" "start" "-a" "7459a304a3adecbbf6c72197b4a8d5dd7ad884b3266bb895bb3d0ddcc625b5c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling inv_manager v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "7459a304a3adecbbf6c72197b4a8d5dd7ad884b3266bb895bb3d0ddcc625b5c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7459a304a3adecbbf6c72197b4a8d5dd7ad884b3266bb895bb3d0ddcc625b5c0", kill_on_drop: false }`
[INFO] [stdout] 7459a304a3adecbbf6c72197b4a8d5dd7ad884b3266bb895bb3d0ddcc625b5c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 94738192a8a541e6f7652c56e03faf77ab2f84a949c86c6747e099d512b0a47b
[INFO] running `Command { std: "docker" "start" "-a" "94738192a8a541e6f7652c56e03faf77ab2f84a949c86c6747e099d512b0a47b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.58s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/inv_manager-72400b2875b0a603)
[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]    Doc-tests inv_manager
[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" "94738192a8a541e6f7652c56e03faf77ab2f84a949c86c6747e099d512b0a47b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94738192a8a541e6f7652c56e03faf77ab2f84a949c86c6747e099d512b0a47b", kill_on_drop: false }`
[INFO] [stdout] 94738192a8a541e6f7652c56e03faf77ab2f84a949c86c6747e099d512b0a47b