[INFO] cloning repository https://github.com/ahk/rust-web-arm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahk/rust-web-arm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahk%2Frust-web-arm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahk%2Frust-web-arm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc931c4aaa12d462dbdb96a2de5215ca51d06e9e
[INFO] checking ahk/rust-web-arm against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahk%2Frust-web-arm" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ahk/rust-web-arm on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ahk/rust-web-arm
[INFO] finished tweaking git repo https://github.com/ahk/rust-web-arm
[INFO] tweaked toml for git repo https://github.com/ahk/rust-web-arm written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ahk/rust-web-arm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 113715e5065d6514d407fdb62c6bc83439c8cb701cac5603616037fcf67af2c9
[INFO] running `Command { std: "docker" "start" "-a" "113715e5065d6514d407fdb62c6bc83439c8cb701cac5603616037fcf67af2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "113715e5065d6514d407fdb62c6bc83439c8cb701cac5603616037fcf67af2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "113715e5065d6514d407fdb62c6bc83439c8cb701cac5603616037fcf67af2c9", kill_on_drop: false }`
[INFO] [stdout] 113715e5065d6514d407fdb62c6bc83439c8cb701cac5603616037fcf67af2c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98bbee7cfe248d4c41638bad6721fa58723639b43b101e451fc2dcf13476e384
[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" "98bbee7cfe248d4c41638bad6721fa58723639b43b101e451fc2dcf13476e384", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking matches v0.1.2
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking unicode-normalization v0.1.2
[INFO] [stderr]     Checking traitobject v0.0.3
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking libc v0.2.16
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking httparse v1.1.2
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking unicode-bidi v0.2.3
[INFO] [stderr]     Checking unsafe-any v0.4.1
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[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 plugin v0.2.6
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]     Checking idna v0.1.0
[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" "98bbee7cfe248d4c41638bad6721fa58723639b43b101e451fc2dcf13476e384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98bbee7cfe248d4c41638bad6721fa58723639b43b101e451fc2dcf13476e384", kill_on_drop: false }`
[INFO] [stdout] 98bbee7cfe248d4c41638bad6721fa58723639b43b101e451fc2dcf13476e384