[INFO] cloning repository https://github.com/sts10/advent-of-code-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sts10/advent-of-code-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsts10%2Fadvent-of-code-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsts10%2Fadvent-of-code-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a1acaa1c5730ceed61096eecdc6c3105eb10a09
[INFO] checking sts10/advent-of-code-2018 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsts10%2Fadvent-of-code-2018" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sts10/advent-of-code-2018 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sts10/advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/sts10/advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/sts10/advent-of-code-2018 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sts10/advent-of-code-2018 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ed7d7e258631a8b90651c413f9249dadbc0ec07d9741c51a0a815ec0ab72f38
[INFO] running `Command { std: "docker" "start" "-a" "6ed7d7e258631a8b90651c413f9249dadbc0ec07d9741c51a0a815ec0ab72f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ed7d7e258631a8b90651c413f9249dadbc0ec07d9741c51a0a815ec0ab72f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed7d7e258631a8b90651c413f9249dadbc0ec07d9741c51a0a815ec0ab72f38", kill_on_drop: false }`
[INFO] [stdout] 6ed7d7e258631a8b90651c413f9249dadbc0ec07d9741c51a0a815ec0ab72f38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b62819e0a2d95b55ad1c89958a9de06828adea27f22b3d625aa10059fb94227e
[INFO] running `Command { std: "docker" "start" "-a" "b62819e0a2d95b55ad1c89958a9de06828adea27f22b3d625aa10059fb94227e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking advent-of-code-2018-reorganized v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0384]: cannot assign twice to immutable variable `square`
[INFO] [stdout]   --> src/bin/day06.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for square in nine_squares {
[INFO] [stdout]    |         ------ first assignment to `square`
[INFO] [stdout] 50 |         match square {
[INFO] [stdout] 51 |             "." => square = sign,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ cannot assign twice to immutable variable
[INFO] [stdout]    |
[INFO] [stdout] help: consider making this binding mutable
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for mut square in nine_squares {
[INFO] [stdout]    |         ~~~~~~~~~~
[INFO] [stdout] help: to modify the original value, take a borrow instead
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for ref mut square in nine_squares {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code-2018-reorganized` (bin "day06") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b62819e0a2d95b55ad1c89958a9de06828adea27f22b3d625aa10059fb94227e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b62819e0a2d95b55ad1c89958a9de06828adea27f22b3d625aa10059fb94227e", kill_on_drop: false }`
[INFO] [stdout] b62819e0a2d95b55ad1c89958a9de06828adea27f22b3d625aa10059fb94227e