[INFO] cloning repository https://github.com/justinian/ipecho
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/justinian/ipecho" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinian%2Fipecho", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinian%2Fipecho'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 694f0ca4dc2beb534b927bf54308cffdc918b54f
[INFO] checking justinian/ipecho against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinian%2Fipecho" "/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/justinian/ipecho on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/justinian/ipecho
[INFO] finished tweaking git repo https://github.com/justinian/ipecho
[INFO] tweaked toml for git repo https://github.com/justinian/ipecho written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/justinian/ipecho already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bd27281e14f79e8a4eddb2b85f28a369c0b49da1525e42080be25851ec2bd72
[INFO] running `Command { std: "docker" "start" "-a" "6bd27281e14f79e8a4eddb2b85f28a369c0b49da1525e42080be25851ec2bd72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bd27281e14f79e8a4eddb2b85f28a369c0b49da1525e42080be25851ec2bd72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd27281e14f79e8a4eddb2b85f28a369c0b49da1525e42080be25851ec2bd72", kill_on_drop: false }`
[INFO] [stdout] 6bd27281e14f79e8a4eddb2b85f28a369c0b49da1525e42080be25851ec2bd72
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4c2aa2cc49873c0eb9716f186c58e3a0e070a60ae7719e5f6af1f82b71aa5c1
[INFO] running `Command { std: "docker" "start" "-a" "e4c2aa2cc49873c0eb9716f186c58e3a0e070a60ae7719e5f6af1f82b71aa5c1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.1.10
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.5
[INFO] [stderr]    Compiling gcc v0.3.13
[INFO] [stderr]     Checking rustc-serialize v0.3.16
[INFO] [stderr]     Checking lazy_static v0.1.14
[INFO] [stderr]     Checking matches v0.1.2
[INFO] [stderr]     Checking bitflags v0.3.2
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking language-tags v0.0.7
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking httparse v0.1.6
[INFO] [stderr]     Checking unicase v1.0.0
[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-0.3.16/src/serialize.rs:145:45
[INFO] [stdout]     |
[INFO] [stdout] 145 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[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` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e4c2aa2cc49873c0eb9716f186c58e3a0e070a60ae7719e5f6af1f82b71aa5c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4c2aa2cc49873c0eb9716f186c58e3a0e070a60ae7719e5f6af1f82b71aa5c1", kill_on_drop: false }`
[INFO] [stdout] e4c2aa2cc49873c0eb9716f186c58e3a0e070a60ae7719e5f6af1f82b71aa5c1