[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#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla%2Fi3-tmux-integration" "/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/roblabla/i3-tmux-integration on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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-7/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chan v0.1.18
[INFO] [stderr]   Downloaded twoway v0.1.3
[INFO] [stderr]   Downloaded fern v0.3.5
[INFO] [stderr]   Downloaded termion v1.1.3
[INFO] [stderr]   Downloaded unix_socket v0.4.6
[INFO] [stderr]   Downloaded pty v0.2.0
[INFO] [stderr]   Downloaded i3ipc v0.4.2
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1743d4c0ddca0b49770eb554a2f81e38e83d2adc5fd4518ccd37d94413787a29
[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" "1743d4c0ddca0b49770eb554a2f81e38e83d2adc5fd4518ccd37d94413787a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1743d4c0ddca0b49770eb554a2f81e38e83d2adc5fd4518ccd37d94413787a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1743d4c0ddca0b49770eb554a2f81e38e83d2adc5fd4518ccd37d94413787a29", kill_on_drop: false }`
[INFO] [stdout] 1743d4c0ddca0b49770eb554a2f81e38e83d2adc5fd4518ccd37d94413787a29
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbf2a36db996c8d1f3e0a87dc58c0e2b91fdec8065f36f498145ce81f0dfb0dc
[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" "fbf2a36db996c8d1f3e0a87dc58c0e2b91fdec8065f36f498145ce81f0dfb0dc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking debug-builders v0.1.0
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]     Checking log v0.3.6
[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 fern v0.3.5
[INFO] [stderr]     Checking unix_socket v0.4.6
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking termion v1.1.3
[INFO] [stderr]     Checking twoway v0.1.3
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking chan v0.1.18
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fbf2a36db996c8d1f3e0a87dc58c0e2b91fdec8065f36f498145ce81f0dfb0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf2a36db996c8d1f3e0a87dc58c0e2b91fdec8065f36f498145ce81f0dfb0dc", kill_on_drop: false }`
[INFO] [stdout] fbf2a36db996c8d1f3e0a87dc58c0e2b91fdec8065f36f498145ce81f0dfb0dc