[INFO] cloning repository https://github.com/roblabla/i3-tmux-integration
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roblabla/i3-tmux-integration" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla%2Fi3-tmux-integration", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla%2Fi3-tmux-integration'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44c62b78c41a470714c9a04abef3682a41f9d908
[INFO] checking roblabla/i3-tmux-integration against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla%2Fi3-tmux-integration" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roblabla/i3-tmux-integration on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/roblabla/i3-tmux-integration
[INFO] finished tweaking git repo https://github.com/roblabla/i3-tmux-integration
[INFO] tweaked toml for git repo https://github.com/roblabla/i3-tmux-integration written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/roblabla/i3-tmux-integration already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.1.8
[INFO] [stderr]   Downloaded chan v0.1.18
[INFO] [stderr]   Downloaded termion v1.1.3
[INFO] [stderr]   Downloaded fern v0.3.5
[INFO] [stderr]   Downloaded i3ipc v0.4.2
[INFO] [stderr]   Downloaded unix_socket v0.4.6
[INFO] [stderr]   Downloaded pty v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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] aeabed8d7c53013c45a8d7b9f5ba463ed73055035d9d5509501d10c07c74f7cc
[INFO] running `Command { std: "docker" "start" "-a" "aeabed8d7c53013c45a8d7b9f5ba463ed73055035d9d5509501d10c07c74f7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aeabed8d7c53013c45a8d7b9f5ba463ed73055035d9d5509501d10c07c74f7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeabed8d7c53013c45a8d7b9f5ba463ed73055035d9d5509501d10c07c74f7cc", kill_on_drop: false }`
[INFO] [stdout] aeabed8d7c53013c45a8d7b9f5ba463ed73055035d9d5509501d10c07c74f7cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cf8e6cab410d40354a40490a5d4be08fb7dc4c488ace36861e373a24a3b3068
[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" "4cf8e6cab410d40354a40490a5d4be08fb7dc4c488ace36861e373a24a3b3068", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking debug-builders v0.1.0
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]     Checking termion v1.1.3
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking chan v0.1.18
[INFO] [stderr]     Checking twoway v0.1.3
[INFO] [stderr]     Checking fern v0.3.5
[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 unix_socket v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking pty v0.2.0
[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" "4cf8e6cab410d40354a40490a5d4be08fb7dc4c488ace36861e373a24a3b3068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cf8e6cab410d40354a40490a5d4be08fb7dc4c488ace36861e373a24a3b3068", kill_on_drop: false }`
[INFO] [stdout] 4cf8e6cab410d40354a40490a5d4be08fb7dc4c488ace36861e373a24a3b3068