[INFO] fetching crate rants 0.5.0...
[INFO] testing rants-0.5.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rants 0.5.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate rants 0.5.0 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 rants 0.5.0
[INFO] finished tweaking crates.io crate rants 0.5.0
[INFO] tweaked toml for crates.io crate rants 0.5.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v0.2.6
[INFO] [stderr]   Downloaded pin-project-internal v0.4.28
[INFO] [stderr]   Downloaded pin-project v0.4.28
[INFO] [stderr]   Downloaded tokio-native-tls v0.1.0
[INFO] [stderr]   Downloaded hostname v0.2.0
[INFO] [stderr]   Downloaded tokio-util v0.2.0
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 71f720a6a19c21acbd5e9d7242323253bec0096b3ddcb3aa27df95434e742557
[INFO] running `Command { std: "docker" "start" "-a" "71f720a6a19c21acbd5e9d7242323253bec0096b3ddcb3aa27df95434e742557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71f720a6a19c21acbd5e9d7242323253bec0096b3ddcb3aa27df95434e742557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f720a6a19c21acbd5e9d7242323253bec0096b3ddcb3aa27df95434e742557", kill_on_drop: false }`
[INFO] [stdout] 71f720a6a19c21acbd5e9d7242323253bec0096b3ddcb3aa27df95434e742557
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] dc08daafa8941ec62020d592176179ce960589f29b6cf1d85b58668ad111539b
[INFO] running `Command { std: "docker" "start" "-a" "dc08daafa8941ec62020d592176179ce960589f29b6cf1d85b58668ad111539b", kill_on_drop: false }`
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling pin-project v0.4.28
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling rants v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.92s
[INFO] running `Command { std: "docker" "inspect" "dc08daafa8941ec62020d592176179ce960589f29b6cf1d85b58668ad111539b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc08daafa8941ec62020d592176179ce960589f29b6cf1d85b58668ad111539b", kill_on_drop: false }`
[INFO] [stdout] dc08daafa8941ec62020d592176179ce960589f29b6cf1d85b58668ad111539b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] d1a71e97344946355a76fc32d8cdf4be956487ca3d94c086f95c509d38ce0c83
[INFO] running `Command { std: "docker" "start" "-a" "d1a71e97344946355a76fc32d8cdf4be956487ca3d94c086f95c509d38ce0c83", kill_on_drop: false }`
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling hostname v0.2.0
[INFO] [stderr]    Compiling rants v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rants`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rants --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=d06cba6492388922 -C extra-filename=-d06cba6492388922 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-b63c3b3ea06c4474.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-49a0f0bd0dbc5334.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-4d83f5cceb17651c.rlib --extern hostname=/opt/rustwide/target/debug/deps/libhostname-a0301422d78ab237.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-e79d96be0b9672b0.rlib --extern nom=/opt/rustwide/target/debug/deps/libnom-028b4576dedb1129.rlib --extern owning_ref=/opt/rustwide/target/debug/deps/libowning_ref-b4c07e4c7e7cc403.rlib --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-0adf791b34862dfc.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-18c5ba4d7738542c.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-0c474a49fa82bfad.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-3737cc924f706ff7.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-c72d6546cc3130fa.rlib --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-59c601da445ddd1f.rlib --extern uuid=/opt/rustwide/target/debug/deps/libuuid-055d0af52799eba5.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d1a71e97344946355a76fc32d8cdf4be956487ca3d94c086f95c509d38ce0c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1a71e97344946355a76fc32d8cdf4be956487ca3d94c086f95c509d38ce0c83", kill_on_drop: false }`
[INFO] [stdout] d1a71e97344946355a76fc32d8cdf4be956487ca3d94c086f95c509d38ce0c83