[INFO] fetching crate dfile 1.3.6...
[INFO] testing dfile-1.3.6 against 1.54.0 for beta-1.55-1
[INFO] extracting crate dfile 1.3.6 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate dfile 1.3.6 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dfile 1.3.6
[INFO] finished tweaking crates.io crate dfile 1.3.6
[INFO] tweaked toml for crates.io crate dfile 1.3.6 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate crates.io crate dfile 1.3.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fff34595fc29a608c97ceb9fd2c8d58cfa1d496c963b938c5756183c64967d2
[INFO] running `Command { std: "docker" "start" "-a" "1fff34595fc29a608c97ceb9fd2c8d58cfa1d496c963b938c5756183c64967d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fff34595fc29a608c97ceb9fd2c8d58cfa1d496c963b938c5756183c64967d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fff34595fc29a608c97ceb9fd2c8d58cfa1d496c963b938c5756183c64967d2", kill_on_drop: false }`
[INFO] [stdout] 1fff34595fc29a608c97ceb9fd2c8d58cfa1d496c963b938c5756183c64967d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1ab21bb939a7ca56a15fa11cecbb94d7ba0953687448ffff712b9ec880bdcc8
[INFO] running `Command { std: "docker" "start" "-a" "a1ab21bb939a7ca56a15fa11cecbb94d7ba0953687448ffff712b9ec880bdcc8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling smallvec v1.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling time v0.2.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.11
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libssh2-sys v0.2.13
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling serde_yaml v0.8.11
[INFO] [stderr]    Compiling pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling syn-mid v0.4.0
[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-1.0.13/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=b00f722e25c2dab9 -C extra-filename=-b00f722e25c2dab9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1be62c2f0770a3d3.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-f0e1987fbc336d8e.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-0ab589a11845f108.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" "a1ab21bb939a7ca56a15fa11cecbb94d7ba0953687448ffff712b9ec880bdcc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ab21bb939a7ca56a15fa11cecbb94d7ba0953687448ffff712b9ec880bdcc8", kill_on_drop: false }`
[INFO] [stdout] a1ab21bb939a7ca56a15fa11cecbb94d7ba0953687448ffff712b9ec880bdcc8
