[INFO] cloning repository https://github.com/mataku/lastweettt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mataku/lastweettt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmataku%2Flastweettt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmataku%2Flastweettt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a74206884a1db4843fda5adb89fe7c264e5a3f4c
[INFO] checking mataku/lastweettt against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmataku%2Flastweettt" "/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/mataku/lastweettt 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/mataku/lastweettt
[INFO] finished tweaking git repo https://github.com/mataku/lastweettt
[INFO] tweaked toml for git repo https://github.com/mataku/lastweettt written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mataku/lastweettt 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] 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] 7dd5de5f6b21553045ad728054b05e596b914262d673fc5ba0b62176da23aff8
[INFO] running `Command { std: "docker" "start" "-a" "7dd5de5f6b21553045ad728054b05e596b914262d673fc5ba0b62176da23aff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dd5de5f6b21553045ad728054b05e596b914262d673fc5ba0b62176da23aff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dd5de5f6b21553045ad728054b05e596b914262d673fc5ba0b62176da23aff8", kill_on_drop: false }`
[INFO] [stdout] 7dd5de5f6b21553045ad728054b05e596b914262d673fc5ba0b62176da23aff8
[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] 63506e74859cee5d4f75e15766e520b58b790c7a816b5a0ab3af94ad4361182d
[INFO] running `Command { std: "docker" "start" "-a" "63506e74859cee5d4f75e15766e520b58b790c7a816b5a0ab3af94ad4361182d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gcc v0.3.35
[INFO] [stderr]     Checking libc v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.8
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking matches v0.1.2
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking unicode-normalization v0.1.2
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking lazy_static v0.2.1
[INFO] [stderr]     Checking serde v0.8.4
[INFO] [stderr]     Checking yaml-rust v0.3.3
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking num-traits v0.1.35
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking httparse v1.1.2
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking unicode-bidi v0.2.3
[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 hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[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" "63506e74859cee5d4f75e15766e520b58b790c7a816b5a0ab3af94ad4361182d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63506e74859cee5d4f75e15766e520b58b790c7a816b5a0ab3af94ad4361182d", kill_on_drop: false }`
[INFO] [stdout] 63506e74859cee5d4f75e15766e520b58b790c7a816b5a0ab3af94ad4361182d