[INFO] cloning repository https://github.com/simnalamburt/encode-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simnalamburt/encode-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimnalamburt%2Fencode-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimnalamburt%2Fencode-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88361ad2fece1915eacf4d5b052eeaa1c0808b45
[INFO] checking simnalamburt/encode-practice against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimnalamburt%2Fencode-practice" "/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/simnalamburt/encode-practice on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simnalamburt/encode-practice
[INFO] finished tweaking git repo https://github.com/simnalamburt/encode-practice
[INFO] tweaked toml for git repo https://github.com/simnalamburt/encode-practice written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/simnalamburt/encode-practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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 byteorder v0.3.11
[INFO] [stderr]   Downloaded time v0.1.32
[INFO] [stderr]   Downloaded bincode v0.4.0
[INFO] [stderr]   Downloaded rand v0.3.10
[INFO] [stderr]   Downloaded vec_map v0.3.0
[INFO] [stderr]   Downloaded serde v0.5.2
[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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af8a7165a4fc0a08bdb0e091b9a23667330a1a98e1f4d9097e5aa76fdc22d41d
[INFO] running `Command { std: "docker" "start" "-a" "af8a7165a4fc0a08bdb0e091b9a23667330a1a98e1f4d9097e5aa76fdc22d41d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af8a7165a4fc0a08bdb0e091b9a23667330a1a98e1f4d9097e5aa76fdc22d41d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af8a7165a4fc0a08bdb0e091b9a23667330a1a98e1f4d9097e5aa76fdc22d41d", kill_on_drop: false }`
[INFO] [stdout] af8a7165a4fc0a08bdb0e091b9a23667330a1a98e1f4d9097e5aa76fdc22d41d
[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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6da2e45533c20110e508361907d464be38db192c095b629621152c226047c37d
[INFO] running `Command { std: "docker" "start" "-a" "6da2e45533c20110e508361907d464be38db192c095b629621152c226047c37d", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.2
[INFO] [stderr]     Checking libc v0.1.10
[INFO] [stderr]     Checking rustc-serialize v0.3.16
[INFO] [stderr]     Checking byteorder v0.3.11
[INFO] [stderr]     Checking vec_map v0.3.0
[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-0.3.16/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] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stderr]    Compiling kernel32-sys v0.1.4
[INFO] [stderr]     Checking rand v0.3.10
[INFO] [stderr]     Checking time v0.1.32
[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] running `Command { std: "docker" "inspect" "6da2e45533c20110e508361907d464be38db192c095b629621152c226047c37d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6da2e45533c20110e508361907d464be38db192c095b629621152c226047c37d", kill_on_drop: false }`
[INFO] [stdout] 6da2e45533c20110e508361907d464be38db192c095b629621152c226047c37d