[INFO] fetching crate cargo-feature-set 0.4.0...
[INFO] testing cargo-feature-set-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate cargo-feature-set 0.4.0 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate cargo-feature-set 0.4.0 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 cargo-feature-set 0.4.0
[INFO] finished tweaking crates.io crate cargo-feature-set 0.4.0
[INFO] tweaked toml for crates.io crate cargo-feature-set 0.4.0 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate crates.io crate cargo-feature-set 0.4.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 6fb5c5949519d3cb0ef45c3ca6cc1885e8893124e62daa9fab30391b9599661f
[INFO] running `Command { std: "docker" "start" "-a" "6fb5c5949519d3cb0ef45c3ca6cc1885e8893124e62daa9fab30391b9599661f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fb5c5949519d3cb0ef45c3ca6cc1885e8893124e62daa9fab30391b9599661f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb5c5949519d3cb0ef45c3ca6cc1885e8893124e62daa9fab30391b9599661f", kill_on_drop: false }`
[INFO] [stdout] 6fb5c5949519d3cb0ef45c3ca6cc1885e8893124e62daa9fab30391b9599661f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 11c56d5e6d02d2340e18d965356bb2159abaf669a30b9dce06fb09f2582cb86a
[INFO] running `Command { std: "docker" "start" "-a" "11c56d5e6d02d2340e18d965356bb2159abaf669a30b9dce06fb09f2582cb86a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling tabwriter v1.1.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]    Compiling structopt v0.3.7
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cargo_metadata v0.9.1
[INFO] [stderr]    Compiling cargo-feature-set v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.20s
[INFO] running `Command { std: "docker" "inspect" "11c56d5e6d02d2340e18d965356bb2159abaf669a30b9dce06fb09f2582cb86a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c56d5e6d02d2340e18d965356bb2159abaf669a30b9dce06fb09f2582cb86a", kill_on_drop: false }`
[INFO] [stdout] 11c56d5e6d02d2340e18d965356bb2159abaf669a30b9dce06fb09f2582cb86a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 2f22549f222ab08cbb7d6112f0ad60322b6d02488301884b06d90f42ee06f01c
[INFO] running `Command { std: "docker" "start" "-a" "2f22549f222ab08cbb7d6112f0ad60322b6d02488301884b06d90f42ee06f01c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-feature-set v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "2f22549f222ab08cbb7d6112f0ad60322b6d02488301884b06d90f42ee06f01c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f22549f222ab08cbb7d6112f0ad60322b6d02488301884b06d90f42ee06f01c", kill_on_drop: false }`
[INFO] [stdout] 2f22549f222ab08cbb7d6112f0ad60322b6d02488301884b06d90f42ee06f01c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 17590772f95c458ef0898f41f8600bda0992f2f2d633897ee76bd58638cf4b5b
[INFO] running `Command { std: "docker" "start" "-a" "17590772f95c458ef0898f41f8600bda0992f2f2d633897ee76bd58638cf4b5b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_feature_set-7b120ed384338a93)
[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" "17590772f95c458ef0898f41f8600bda0992f2f2d633897ee76bd58638cf4b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17590772f95c458ef0898f41f8600bda0992f2f2d633897ee76bd58638cf4b5b", kill_on_drop: false }`
[INFO] [stdout] 17590772f95c458ef0898f41f8600bda0992f2f2d633897ee76bd58638cf4b5b