[INFO] cloning repository https://github.com/blitzcode/rust-exp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blitzcode/rust-exp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblitzcode%2Frust-exp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblitzcode%2Frust-exp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d380104ebbc1c0c1167f07f93dd9e9b3ed32472
[INFO] checking blitzcode/rust-exp against master#49b3924bd4a34d3cf9c37b74120fba78d9712ab8 for pr-118247
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblitzcode%2Frust-exp" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blitzcode/rust-exp on toolchain 49b3924bd4a34d3cf9c37b74120fba78d9712ab8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b3924bd4a34d3cf9c37b74120fba78d9712ab8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blitzcode/rust-exp
[INFO] finished tweaking git repo https://github.com/blitzcode/rust-exp
[INFO] tweaked toml for git repo https://github.com/blitzcode/rust-exp written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/blitzcode/rust-exp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b3924bd4a34d3cf9c37b74120fba78d9712ab8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking blitzcode/rust-exp against try#ab2dc84cfc2c30bb279a7cd2bfef172c30260142 for pr-118247
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblitzcode%2Frust-exp" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blitzcode/rust-exp on toolchain ab2dc84cfc2c30bb279a7cd2bfef172c30260142
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab2dc84cfc2c30bb279a7cd2bfef172c30260142" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blitzcode/rust-exp
[INFO] finished tweaking git repo https://github.com/blitzcode/rust-exp
[INFO] tweaked toml for git repo https://github.com/blitzcode/rust-exp written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/blitzcode/rust-exp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab2dc84cfc2c30bb279a7cd2bfef172c30260142" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_cpus v0.2.12
[INFO] [stderr]   Downloaded ansi_term v0.7.2
[INFO] [stderr]   Downloaded time v0.1.35
[INFO] [stderr]   Downloaded stb_image v0.2.1
[INFO] [stderr]   Downloaded nalgebra v0.8.2
[INFO] [stderr]   Downloaded lazy_static v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ab2dc84cfc2c30bb279a7cd2bfef172c30260142" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6daa3881bfe441f7fbc4cc4bb9c7636bb75c977cb927ce8f4db46b90c5ae2fde
[INFO] running `Command { std: "docker" "start" "-a" "6daa3881bfe441f7fbc4cc4bb9c7636bb75c977cb927ce8f4db46b90c5ae2fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6daa3881bfe441f7fbc4cc4bb9c7636bb75c977cb927ce8f4db46b90c5ae2fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6daa3881bfe441f7fbc4cc4bb9c7636bb75c977cb927ce8f4db46b90c5ae2fde", kill_on_drop: false }`
[INFO] [stdout] 6daa3881bfe441f7fbc4cc4bb9c7636bb75c977cb927ce8f4db46b90c5ae2fde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ab2dc84cfc2c30bb279a7cd2bfef172c30260142" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e34ef416b4627b181ea28ac278e2cf98ce2019474dafe784edcfd98b203fae53
[INFO] running `Command { std: "docker" "start" "-a" "e34ef416b4627b181ea28ac278e2cf98ce2019474dafe784edcfd98b203fae53", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.11
[INFO] [stderr]     Checking num-traits v0.1.32
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]    Compiling stb_image v0.2.1
[INFO] [stderr]     Checking winapi v0.2.7
[INFO] [stderr]     Checking lazy_static v0.2.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking ansi_term v0.7.2
[INFO] [stderr]     Checking 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/index.crates.io-6f17d22bba15001f/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 rand v0.3.14
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking num_cpus v0.2.12
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stdout] error: aborting due to 1 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` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e34ef416b4627b181ea28ac278e2cf98ce2019474dafe784edcfd98b203fae53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e34ef416b4627b181ea28ac278e2cf98ce2019474dafe784edcfd98b203fae53", kill_on_drop: false }`
[INFO] [stdout] e34ef416b4627b181ea28ac278e2cf98ce2019474dafe784edcfd98b203fae53