[INFO] cloning repository https://github.com/forestoden6/RustChat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/forestoden6/RustChat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforestoden6%2FRustChat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforestoden6%2FRustChat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7acfb917d1165eb907dcddf70aac824d8820a7e
[INFO] checking forestoden6/RustChat against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforestoden6%2FRustChat" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/forestoden6/RustChat on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/forestoden6/RustChat
[INFO] finished tweaking git repo https://github.com/forestoden6/RustChat
[INFO] tweaked toml for git repo https://github.com/forestoden6/RustChat written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/forestoden6/RustChat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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 slab v0.2.0
[INFO] [stderr]   Downloaded nix v0.6.0
[INFO] [stderr]   Downloaded byteorder v0.3.13
[INFO] [stderr]   Downloaded miow v0.1.3
[INFO] [stderr]   Downloaded http-muncher v0.2.4
[INFO] [stderr]   Downloaded spin v0.4.3
[INFO] [stderr]   Downloaded net2 v0.2.26
[INFO] [stderr]   Downloaded context v1.0.0
[INFO] [stderr]   Downloaded owning_ref v0.2.0
[INFO] [stderr]   Downloaded mioco v0.8.0
[INFO] [stderr]   Downloaded sha1 v0.1.1
[INFO] [stderr]   Downloaded thread-scoped v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f6e1675a51719930fd0479a269f5a97b1c6feaac289d83b0395376fdcf0b6c6
[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" "8f6e1675a51719930fd0479a269f5a97b1c6feaac289d83b0395376fdcf0b6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f6e1675a51719930fd0479a269f5a97b1c6feaac289d83b0395376fdcf0b6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6e1675a51719930fd0479a269f5a97b1c6feaac289d83b0395376fdcf0b6c6", kill_on_drop: false }`
[INFO] [stdout] 8f6e1675a51719930fd0479a269f5a97b1c6feaac289d83b0395376fdcf0b6c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51f24dfe21345d80fbea44531c6752c986ca82ac05b0050773636fb7a44d140e
[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" "51f24dfe21345d80fbea44531c6752c986ca82ac05b0050773636fb7a44d140e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.14
[INFO] [stderr]    Compiling gcc v0.3.32
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking thread-scoped v1.0.1
[INFO] [stderr]     Checking slab v0.2.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking spin v0.4.3
[INFO] [stderr]     Checking owning_ref v0.2.0
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking sha1 v0.1.1
[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 net2 v0.2.26
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]    Compiling context v1.0.0
[INFO] [stderr]    Compiling http-muncher v0.2.4
[INFO] [stderr]     Checking miow v0.1.3
[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" "51f24dfe21345d80fbea44531c6752c986ca82ac05b0050773636fb7a44d140e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51f24dfe21345d80fbea44531c6752c986ca82ac05b0050773636fb7a44d140e", kill_on_drop: false }`
[INFO] [stdout] 51f24dfe21345d80fbea44531c6752c986ca82ac05b0050773636fb7a44d140e