[INFO] cloning repository https://github.com/CianLR/mazegen-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CianLR/mazegen-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCianLR%2Fmazegen-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCianLR%2Fmazegen-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c45d2180582696b40e400ba72e2e54971048dc1f
[INFO] checking CianLR/mazegen-rs against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCianLR%2Fmazegen-rs" "/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/CianLR/mazegen-rs on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CianLR/mazegen-rs
[INFO] finished tweaking git repo https://github.com/CianLR/mazegen-rs
[INFO] tweaked toml for git repo https://github.com/CianLR/mazegen-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/CianLR/mazegen-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33b36576595e6b35bc9c371c1f3eb97782c3e84c0847533e11af70867e5d2d3e
[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" "33b36576595e6b35bc9c371c1f3eb97782c3e84c0847533e11af70867e5d2d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33b36576595e6b35bc9c371c1f3eb97782c3e84c0847533e11af70867e5d2d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33b36576595e6b35bc9c371c1f3eb97782c3e84c0847533e11af70867e5d2d3e", kill_on_drop: false }`
[INFO] [stdout] 33b36576595e6b35bc9c371c1f3eb97782c3e84c0847533e11af70867e5d2d3e
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f04145c6cbd0afea0705116b9469bd7a907b3d222ead65dfba8cabcc4d119e97
[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" "f04145c6cbd0afea0705116b9469bd7a907b3d222ead65dfba8cabcc4d119e97", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.8
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking mazegen-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/algos/algo.rs:18:62
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn get_algorithm(algo: &String, ani: bool) -> Result<Box<MazeAlgo>, String> {
[INFO] [stdout]    |                                                              ^^^^^^^^ help: use `dyn`: `dyn MazeAlgo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/maze.rs:54:43
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   algo: &mut Box<MazeAlgo>) -> Result<(), String> {
[INFO] [stdout]    |                                      ^^^^^^^^ help: use `dyn`: `dyn MazeAlgo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/algos/algo.rs:18:62
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn get_algorithm(algo: &String, ani: bool) -> Result<Box<MazeAlgo>, String> {
[INFO] [stdout]    |                                                              ^^^^^^^^ help: use `dyn`: `dyn MazeAlgo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/maze.rs:54:43
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   algo: &mut Box<MazeAlgo>) -> Result<(), String> {
[INFO] [stdout]    |                                      ^^^^^^^^ help: use `dyn`: `dyn MazeAlgo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.86s
[INFO] running `Command { std: "docker" "inspect" "f04145c6cbd0afea0705116b9469bd7a907b3d222ead65dfba8cabcc4d119e97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f04145c6cbd0afea0705116b9469bd7a907b3d222ead65dfba8cabcc4d119e97", kill_on_drop: false }`
[INFO] [stdout] f04145c6cbd0afea0705116b9469bd7a907b3d222ead65dfba8cabcc4d119e97