[INFO] cloning repository https://github.com/edlanglois/relearn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/edlanglois/relearn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedlanglois%2Frelearn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedlanglois%2Frelearn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 600a128ba2415f41a1d796f973da373e95c36849
[INFO] checking edlanglois/relearn against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedlanglois%2Frelearn" "/workspace/builds/worker-99/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-99/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/edlanglois/relearn 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 git repo https://github.com/edlanglois/relearn
[INFO] finished tweaking git repo https://github.com/edlanglois/relearn
[INFO] tweaked toml for git repo https://github.com/edlanglois/relearn written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate git repo https://github.com/edlanglois/relearn 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray-stats v0.5.0
[INFO] [stderr]   Downloaded ndarray v0.15.3
[INFO] [stderr]   Downloaded enum-map-derive v0.6.0
[INFO] [stderr]   Downloaded enum-map v1.1.1
[INFO] [stderr]   Downloaded noisy_float v0.2.0
[INFO] [stderr]   Downloaded tch v0.5.0
[INFO] [stderr]   Downloaded torch-sys v0.5.0
[INFO] [stderr]   Downloaded rstest v0.7.0
[INFO] [stderr]   Downloaded curl-sys v0.4.45+curl-7.78.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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] d13f72520becc803051476d92a92345a605ceb5c1437f2d60796bfccdb022afe
[INFO] running `Command { std: "docker" "start" "-a" "d13f72520becc803051476d92a92345a605ceb5c1437f2d60796bfccdb022afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d13f72520becc803051476d92a92345a605ceb5c1437f2d60796bfccdb022afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d13f72520becc803051476d92a92345a605ceb5c1437f2d60796bfccdb022afe", kill_on_drop: false }`
[INFO] [stdout] d13f72520becc803051476d92a92345a605ceb5c1437f2d60796bfccdb022afe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01b4434813c3472960f9c400b7c729db3b9cf8373ad8f56365b785ad4a11b18d
[INFO] running `Command { std: "docker" "start" "-a" "01b4434813c3472960f9c400b7c729db3b9cf8373ad8f56365b785ad4a11b18d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking os_str_bytes v3.1.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking num-traits v0.2.14
[INFO] [stderr]     Checking memoffset v0.6.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.45+curl-7.78.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.75/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=e6a0a587e7da1fee -C extra-filename=-e6a0a587e7da1fee --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-77647f9079f570a2.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-716108c799c5057a.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-5ecee5fca1210f52.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (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" "01b4434813c3472960f9c400b7c729db3b9cf8373ad8f56365b785ad4a11b18d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b4434813c3472960f9c400b7c729db3b9cf8373ad8f56365b785ad4a11b18d", kill_on_drop: false }`
[INFO] [stdout] 01b4434813c3472960f9c400b7c729db3b9cf8373ad8f56365b785ad4a11b18d
