[INFO] cloning repository https://github.com/jimmycuadra/serde_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jimmycuadra/serde_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmycuadra%2Fserde_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmycuadra%2Fserde_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2bbdca2a252b053349919531fd60e8c6ef499f0
[INFO] checking jimmycuadra/serde_test against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmycuadra%2Fserde_test" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jimmycuadra/serde_test on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jimmycuadra/serde_test
[INFO] finished tweaking git repo https://github.com/jimmycuadra/serde_test
[INFO] tweaked toml for git repo https://github.com/jimmycuadra/serde_test written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/jimmycuadra/serde_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0655b19c68e4ccd6b7fe5e27594722365f17cf2b6c9cd5f967581531ae5d28cf
[INFO] running `Command { std: "docker" "start" "-a" "0655b19c68e4ccd6b7fe5e27594722365f17cf2b6c9cd5f967581531ae5d28cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0655b19c68e4ccd6b7fe5e27594722365f17cf2b6c9cd5f967581531ae5d28cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0655b19c68e4ccd6b7fe5e27594722365f17cf2b6c9cd5f967581531ae5d28cf", kill_on_drop: false }`
[INFO] [stdout] 0655b19c68e4ccd6b7fe5e27594722365f17cf2b6c9cd5f967581531ae5d28cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1fe3c612841170c76347b915b1e4a2879139e517f6e6635eb243fdec6be9cde
[INFO] running `Command { std: "docker" "start" "-a" "e1fe3c612841170c76347b915b1e4a2879139e517f6e6635eb243fdec6be9cde", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling winapi v0.2.5
[INFO] [stderr]    Compiling libc v0.2.7
[INFO] [stderr]    Compiling rustc-serialize v0.3.18
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]     Checking num v0.1.31
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[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-0.3.18/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] [stderr]    Compiling log v0.3.5
[INFO] [stderr]    Compiling term v0.2.14
[INFO] [stderr]     Checking serde_json v0.7.0
[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] running `Command { std: "docker" "inspect" "e1fe3c612841170c76347b915b1e4a2879139e517f6e6635eb243fdec6be9cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1fe3c612841170c76347b915b1e4a2879139e517f6e6635eb243fdec6be9cde", kill_on_drop: false }`
[INFO] [stdout] e1fe3c612841170c76347b915b1e4a2879139e517f6e6635eb243fdec6be9cde