[INFO] cloning repository https://github.com/Velrok/elevator-problem-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Velrok/elevator-problem-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVelrok%2Felevator-problem-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVelrok%2Felevator-problem-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf77447a56c346738d865ba93397dffca7ef935d
[INFO] checking Velrok/elevator-problem-rust against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVelrok%2Felevator-problem-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Velrok/elevator-problem-rust on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Velrok/elevator-problem-rust
[INFO] finished tweaking git repo https://github.com/Velrok/elevator-problem-rust
[INFO] tweaked toml for git repo https://github.com/Velrok/elevator-problem-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Velrok/elevator-problem-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20afab8a241bc75b9b54e6b04e19fc50139e57582a6f82fd25107aa1c12d563e
[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" "20afab8a241bc75b9b54e6b04e19fc50139e57582a6f82fd25107aa1c12d563e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20afab8a241bc75b9b54e6b04e19fc50139e57582a6f82fd25107aa1c12d563e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20afab8a241bc75b9b54e6b04e19fc50139e57582a6f82fd25107aa1c12d563e", kill_on_drop: false }`
[INFO] [stdout] 20afab8a241bc75b9b54e6b04e19fc50139e57582a6f82fd25107aa1c12d563e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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] 675b17c5daa626950c211c0f46862b2c213088be786ae54ffb1cd0b4c97906df
[INFO] running `Command { std: "docker" "start" "-a" "675b17c5daa626950c211c0f46862b2c213088be786ae54ffb1cd0b4c97906df", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking elevator-problem-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/simulations.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut rng = StdRng::seed_from_u64(seed);
[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: associated function is never used: `is_busy`
[INFO] [stdout]    --> src/elevator.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn is_busy(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enable_debug`
[INFO] [stdout]   --> src/simulations.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn enable_debug(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/simulations.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut rng = StdRng::seed_from_u64(seed);
[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: associated function is never used: `is_busy`
[INFO] [stdout]    --> src/elevator.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn is_busy(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enable_debug`
[INFO] [stdout]   --> src/simulations.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn enable_debug(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.67s
[INFO] running `Command { std: "docker" "inspect" "675b17c5daa626950c211c0f46862b2c213088be786ae54ffb1cd0b4c97906df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675b17c5daa626950c211c0f46862b2c213088be786ae54ffb1cd0b4c97906df", kill_on_drop: false }`
[INFO] [stdout] 675b17c5daa626950c211c0f46862b2c213088be786ae54ffb1cd0b4c97906df