[INFO] cloning repository https://github.com/CarbonBasedDudeform/adventofcode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CarbonBasedDudeform/adventofcode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarbonBasedDudeform%2Fadventofcode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarbonBasedDudeform%2Fadventofcode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1962b8b4c296debe0431619e47dec5e802a7ff5
[INFO] checking CarbonBasedDudeform/adventofcode2020 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarbonBasedDudeform%2Fadventofcode2020" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CarbonBasedDudeform/adventofcode2020 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CarbonBasedDudeform/adventofcode2020
[INFO] finished tweaking git repo https://github.com/CarbonBasedDudeform/adventofcode2020
[INFO] tweaked toml for git repo https://github.com/CarbonBasedDudeform/adventofcode2020 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/CarbonBasedDudeform/adventofcode2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35bd83c6f38965cadabf793ea657e37c5e372b7e5df5d75f700dc14911d14a1c
[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" "35bd83c6f38965cadabf793ea657e37c5e372b7e5df5d75f700dc14911d14a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35bd83c6f38965cadabf793ea657e37c5e372b7e5df5d75f700dc14911d14a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35bd83c6f38965cadabf793ea657e37c5e372b7e5df5d75f700dc14911d14a1c", kill_on_drop: false }`
[INFO] [stdout] 35bd83c6f38965cadabf793ea657e37c5e372b7e5df5d75f700dc14911d14a1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acdde271e58a70aeb6c75ee75d052cb418305537da20a0e2e47930d28534b4cb
[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" "acdde271e58a70aeb6c75ee75d052cb418305537da20a0e2e47930d28534b4cb", kill_on_drop: false }`
[INFO] [stderr]     Checking adventofcode2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day2.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |           if (password.chars().nth(low_limit-1) == candidate.chars().nth(0) && password.chars().nth(hi_limit-1) != candidate.chars().nth(0) ||
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 23 | |             password.chars().nth(low_limit-1) != candidate.chars().nth(0) && password.chars().nth(hi_limit-1) == candidate.chars().nth(0)) {
[INFO] [stdout]    | |__________________________________________________________________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if password.chars().nth(low_limit-1) == candidate.chars().nth(0) && password.chars().nth(hi_limit-1) != candidate.chars().nth(0) ||
[INFO] [stdout] 23 |             password.chars().nth(low_limit-1) != candidate.chars().nth(0) && password.chars().nth(hi_limit-1) == candidate.chars().nth(0) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day2.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |           if (password.chars().nth(low_limit-1) == candidate.chars().nth(0) && password.chars().nth(hi_limit-1) != candidate.chars().nth(0) ||
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 23 | |             password.chars().nth(low_limit-1) != candidate.chars().nth(0) && password.chars().nth(hi_limit-1) == candidate.chars().nth(0)) {
[INFO] [stdout]    | |__________________________________________________________________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if password.chars().nth(low_limit-1) == candidate.chars().nth(0) && password.chars().nth(hi_limit-1) != candidate.chars().nth(0) ||
[INFO] [stdout] 23 |             password.chars().nth(low_limit-1) != candidate.chars().nth(0) && password.chars().nth(hi_limit-1) == candidate.chars().nth(0) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "acdde271e58a70aeb6c75ee75d052cb418305537da20a0e2e47930d28534b4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acdde271e58a70aeb6c75ee75d052cb418305537da20a0e2e47930d28534b4cb", kill_on_drop: false }`
[INFO] [stdout] acdde271e58a70aeb6c75ee75d052cb418305537da20a0e2e47930d28534b4cb