[INFO] cloning repository https://github.com/charlielidbury/aoc-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/charlielidbury/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharlielidbury%2Faoc-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharlielidbury%2Faoc-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28f10b52bd90c50f3ea585e5f78cc066fbe7ad27
[INFO] checking charlielidbury/aoc-2020/28f10b52bd90c50f3ea585e5f78cc066fbe7ad27 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharlielidbury%2Faoc-2020" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/charlielidbury/aoc-2020 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/charlielidbury/aoc-2020
[INFO] finished tweaking git repo https://github.com/charlielidbury/aoc-2020
[INFO] tweaked toml for git repo https://github.com/charlielidbury/aoc-2020 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/charlielidbury/aoc-2020 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b2822fe93bd3ea988ec6185cc94d1c66ce93fbda36953ff9bacaab4bba9ea06
[INFO] running `Command { std: "docker" "start" "-a" "9b2822fe93bd3ea988ec6185cc94d1c66ce93fbda36953ff9bacaab4bba9ea06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b2822fe93bd3ea988ec6185cc94d1c66ce93fbda36953ff9bacaab4bba9ea06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b2822fe93bd3ea988ec6185cc94d1c66ce93fbda36953ff9bacaab4bba9ea06", kill_on_drop: false }`
[INFO] [stdout] 9b2822fe93bd3ea988ec6185cc94d1c66ce93fbda36953ff9bacaab4bba9ea06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 763f71fcc58e263621a050ada7e374919d500dd940a544964de94a6ccf57a2cb
[INFO] running `Command { std: "docker" "start" "-a" "763f71fcc58e263621a050ada7e374919d500dd940a544964de94a6ccf57a2cb", kill_on_drop: false }`
[INFO] [stderr]     Checking day1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]   --> src/day04.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |            .map(|passport| passport
[INFO] [stdout]    |   _________________________^
[INFO] [stdout]    |  |_________________________|
[INFO] [stdout] 69 | ||             .replace("\n", " ")
[INFO] [stdout]    | ||_______________________________- temporary value created here
[INFO] [stdout] 70 | |              .split(" ")
[INFO] [stdout] 71 | |              .map(|field| split_once(field))
[INFO] [stdout] 72 | |              .collect()
[INFO] [stdout]    | |_______________________^ returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]   --> src/day04.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |            .map(|passport| passport
[INFO] [stdout]    |   _________________________^
[INFO] [stdout]    |  |_________________________|
[INFO] [stdout] 69 | ||             .replace("\n", " ")
[INFO] [stdout]    | ||_______________________________- temporary value created here
[INFO] [stdout] 70 | |              .split(" ")
[INFO] [stdout] 71 | |              .map(|field| split_once(field))
[INFO] [stdout] 72 | |              .collect()
[INFO] [stdout]    | |_______________________^ returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `day1` (bin "day1") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `day1` (bin "day1" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "763f71fcc58e263621a050ada7e374919d500dd940a544964de94a6ccf57a2cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "763f71fcc58e263621a050ada7e374919d500dd940a544964de94a6ccf57a2cb", kill_on_drop: false }`
[INFO] [stdout] 763f71fcc58e263621a050ada7e374919d500dd940a544964de94a6ccf57a2cb