[INFO] fetching crate cargo-feature-set 0.4.0...
[INFO] testing cargo-feature-set-0.4.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate cargo-feature-set 0.4.0 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate cargo-feature-set 0.4.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-68/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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4bfb6ab8328b450b415273c4915377374e2f04564a7222a95de924c2207e186
[INFO] running `Command { std: "docker" "start" "-a" "b4bfb6ab8328b450b415273c4915377374e2f04564a7222a95de924c2207e186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4bfb6ab8328b450b415273c4915377374e2f04564a7222a95de924c2207e186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4bfb6ab8328b450b415273c4915377374e2f04564a7222a95de924c2207e186", kill_on_drop: false }`
[INFO] [stdout] b4bfb6ab8328b450b415273c4915377374e2f04564a7222a95de924c2207e186
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98ab82d2bd5577f5081fd93e0f23ad68834276785e95c10a5f744ffceaf86ac5
[INFO] running `Command { std: "docker" "start" "-a" "98ab82d2bd5577f5081fd93e0f23ad68834276785e95c10a5f744ffceaf86ac5", 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-width v0.1.6
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling tabwriter v1.1.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[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 semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.40
[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 48.48s
[INFO] running `Command { std: "docker" "inspect" "98ab82d2bd5577f5081fd93e0f23ad68834276785e95c10a5f744ffceaf86ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ab82d2bd5577f5081fd93e0f23ad68834276785e95c10a5f744ffceaf86ac5", kill_on_drop: false }`
[INFO] [stdout] 98ab82d2bd5577f5081fd93e0f23ad68834276785e95c10a5f744ffceaf86ac5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5eaeb236336ccb7245867bc1d368d53da7ee6456dacb806f7310b9206fc2591
[INFO] running `Command { std: "docker" "start" "-a" "c5eaeb236336ccb7245867bc1d368d53da7ee6456dacb806f7310b9206fc2591", 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 1.13s
[INFO] running `Command { std: "docker" "inspect" "c5eaeb236336ccb7245867bc1d368d53da7ee6456dacb806f7310b9206fc2591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5eaeb236336ccb7245867bc1d368d53da7ee6456dacb806f7310b9206fc2591", kill_on_drop: false }`
[INFO] [stdout] c5eaeb236336ccb7245867bc1d368d53da7ee6456dacb806f7310b9206fc2591
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b8770713e43c094984f56c4f7f653dd4dbc61ac8a9e1b46c014e9d2e5d83fcd6
[INFO] running `Command { std: "docker" "start" "-a" "b8770713e43c094984f56c4f7f653dd4dbc61ac8a9e1b46c014e9d2e5d83fcd6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_feature_set-cab4d465e2e96155)
[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" "b8770713e43c094984f56c4f7f653dd4dbc61ac8a9e1b46c014e9d2e5d83fcd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8770713e43c094984f56c4f7f653dd4dbc61ac8a9e1b46c014e9d2e5d83fcd6", kill_on_drop: false }`
[INFO] [stdout] b8770713e43c094984f56c4f7f653dd4dbc61ac8a9e1b46c014e9d2e5d83fcd6