[INFO] cloning repository https://github.com/mischkew/adventofcode2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mischkew/adventofcode2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmischkew%2Fadventofcode2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmischkew%2Fadventofcode2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce4cf701b4d2c0a5269f1829143d0592d1cd3702
[INFO] checking mischkew/adventofcode2019 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmischkew%2Fadventofcode2019" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mischkew/adventofcode2019 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mischkew/adventofcode2019
[INFO] finished tweaking git repo https://github.com/mischkew/adventofcode2019
[INFO] tweaked toml for git repo https://github.com/mischkew/adventofcode2019 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mischkew/adventofcode2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "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] 61f96da60f2f5c54626de53eda07fe13a31fef1b0bd0fbaa97b0e6f343882514
[INFO] running `Command { std: "docker" "start" "-a" "61f96da60f2f5c54626de53eda07fe13a31fef1b0bd0fbaa97b0e6f343882514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61f96da60f2f5c54626de53eda07fe13a31fef1b0bd0fbaa97b0e6f343882514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61f96da60f2f5c54626de53eda07fe13a31fef1b0bd0fbaa97b0e6f343882514", kill_on_drop: false }`
[INFO] [stdout] 61f96da60f2f5c54626de53eda07fe13a31fef1b0bd0fbaa97b0e6f343882514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] b041e22e333e91205a386b94efb88c8b66c1c30e40a5ad07b64afd486bad526c
[INFO] running `Command { std: "docker" "start" "-a" "b041e22e333e91205a386b94efb88c8b66c1c30e40a5ad07b64afd486bad526c", kill_on_drop: false }`
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking adventofcode2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day06.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let mut B = Object::empty("B");
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `COM` should have a snake case name
[INFO] [stdout]    --> src/bin/day06.rs:157:13
[INFO] [stdout]     |
[INFO] [stdout] 157 |         let COM = Object::empty("COM");
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `com`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/day06.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let mut B = Object::empty("B");
[INFO] [stdout]     |                 ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.32s
[INFO] running `Command { std: "docker" "inspect" "b041e22e333e91205a386b94efb88c8b66c1c30e40a5ad07b64afd486bad526c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b041e22e333e91205a386b94efb88c8b66c1c30e40a5ad07b64afd486bad526c", kill_on_drop: false }`
[INFO] [stdout] b041e22e333e91205a386b94efb88c8b66c1c30e40a5ad07b64afd486bad526c