[INFO] cloning repository https://github.com/nikhilmitrax/rotx
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nikhilmitrax/rotx" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikhilmitrax%2Frotx", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikhilmitrax%2Frotx'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c64584ccef7c7477c5b6a0626bf1443d563a429
[INFO] checking nikhilmitrax/rotx against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikhilmitrax%2Frotx" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikhilmitrax/rotx on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nikhilmitrax/rotx
[INFO] finished tweaking git repo https://github.com/nikhilmitrax/rotx
[INFO] tweaked toml for git repo https://github.com/nikhilmitrax/rotx written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nikhilmitrax/rotx already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9edbd2ff13ff3aaab9866d5420207b2204583d4091213307c1b2ede21a631f3
[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" "a9edbd2ff13ff3aaab9866d5420207b2204583d4091213307c1b2ede21a631f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9edbd2ff13ff3aaab9866d5420207b2204583d4091213307c1b2ede21a631f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9edbd2ff13ff3aaab9866d5420207b2204583d4091213307c1b2ede21a631f3", kill_on_drop: false }`
[INFO] [stdout] a9edbd2ff13ff3aaab9866d5420207b2204583d4091213307c1b2ede21a631f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59b1b376912139bdae418f5d1b4fa50c21b2aa84dc16643dcb6cae73eb47b6c5
[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" "59b1b376912139bdae418f5d1b4fa50c21b2aa84dc16643dcb6cae73eb47b6c5", kill_on_drop: false }`
[INFO] [stderr]     Checking rotx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `ALPHABET` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let ALPHABET: Vec<char> = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGIJKLMNOPQRSTUVWXYZ "
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `alphabet`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ALPHABET_INDEX` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let ALPHABET_INDEX: HashMap<usize, char> = ALPHABET.clone().into_iter().enumerate().collect();
[INFO] [stdout]   |         ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `alphabet_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ALPHABET_REVERSE_INDEX` should have a snake case name
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let ALPHABET_REVERSE_INDEX: HashMap<char, usize> = ALPHABET
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `alphabet_reverse_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ALPHABET` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let ALPHABET: Vec<char> = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGIJKLMNOPQRSTUVWXYZ "
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `alphabet`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ALPHABET_INDEX` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let ALPHABET_INDEX: HashMap<usize, char> = ALPHABET.clone().into_iter().enumerate().collect();
[INFO] [stdout]   |         ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `alphabet_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ALPHABET_REVERSE_INDEX` should have a snake case name
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let ALPHABET_REVERSE_INDEX: HashMap<char, usize> = ALPHABET
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `alphabet_reverse_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "59b1b376912139bdae418f5d1b4fa50c21b2aa84dc16643dcb6cae73eb47b6c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b1b376912139bdae418f5d1b4fa50c21b2aa84dc16643dcb6cae73eb47b6c5", kill_on_drop: false }`
[INFO] [stdout] 59b1b376912139bdae418f5d1b4fa50c21b2aa84dc16643dcb6cae73eb47b6c5