[INFO] cloning repository https://github.com/saghm/optail
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saghm/optail" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaghm%2Foptail", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaghm%2Foptail'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd2963eb899232dc78c9308485c38941641bc53c
[INFO] checking saghm/optail against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaghm%2Foptail" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saghm/optail on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/saghm/optail
[INFO] finished tweaking git repo https://github.com/saghm/optail
[INFO] tweaked toml for git repo https://github.com/saghm/optail written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/saghm/optail already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0079b3cbfc874259c963228dbb60b1fb4a955630eb30b4482d6b8bb26085ed1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b0079b3cbfc874259c963228dbb60b1fb4a955630eb30b4482d6b8bb26085ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0079b3cbfc874259c963228dbb60b1fb4a955630eb30b4482d6b8bb26085ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0079b3cbfc874259c963228dbb60b1fb4a955630eb30b4482d6b8bb26085ed1", kill_on_drop: false }`
[INFO] [stdout] b0079b3cbfc874259c963228dbb60b1fb4a955630eb30b4482d6b8bb26085ed1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50180fdab62f2937d471f78bc4774e5f6bb5da357f53117e4f74e2bebc326cf8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "50180fdab62f2937d471f78bc4774e5f6bb5da357f53117e4f74e2bebc326cf8", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.16
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]    Compiling gcc v0.3.35
[INFO] [stderr]     Checking serde v0.8.12
[INFO] [stderr]     Checking regex-syntax v0.3.7
[INFO] [stderr]     Checking linked-hash-map v0.0.9
[INFO] [stderr]     Checking lazy_static v0.2.1
[INFO] [stderr]     Checking scan_fmt v0.1.1
[INFO] [stderr]     Checking separator v0.3.1
[INFO] [stderr]     Checking strsim v0.5.1
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking colored v1.3.0
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking regex v0.1.77
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "50180fdab62f2937d471f78bc4774e5f6bb5da357f53117e4f74e2bebc326cf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50180fdab62f2937d471f78bc4774e5f6bb5da357f53117e4f74e2bebc326cf8", kill_on_drop: false }`
[INFO] [stdout] 50180fdab62f2937d471f78bc4774e5f6bb5da357f53117e4f74e2bebc326cf8
