[INFO] cloning repository https://github.com/martinhath/nail
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martinhath/nail" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartinhath%2Fnail", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartinhath%2Fnail'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b579644b4a549c4820b7d6794a972b5cb379f982
[INFO] checking martinhath/nail against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartinhath%2Fnail" "/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/martinhath/nail on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/martinhath/nail
[INFO] finished tweaking git repo https://github.com/martinhath/nail
[INFO] tweaked toml for git repo https://github.com/martinhath/nail written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/martinhath/nail already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inflate v0.3.3
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.13
[INFO] [stderr]   Downloaded deflate v0.7.17
[INFO] [stderr]   Downloaded num-rational v0.1.40
[INFO] [stderr]   Downloaded png v0.11.0
[INFO] [stderr]   Downloaded image v0.17.0
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.8
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8a7eb0c05315cd6a77623321a81c8b65e174c520fa7beefc86d380575901488
[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" "d8a7eb0c05315cd6a77623321a81c8b65e174c520fa7beefc86d380575901488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8a7eb0c05315cd6a77623321a81c8b65e174c520fa7beefc86d380575901488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8a7eb0c05315cd6a77623321a81c8b65e174c520fa7beefc86d380575901488", kill_on_drop: false }`
[INFO] [stdout] d8a7eb0c05315cd6a77623321a81c8b65e174c520fa7beefc86d380575901488
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aeb69e264ff3b642e35e396e7d6ead1250a3ab93ef7f14059d41897828f48148
[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" "aeb69e264ff3b642e35e396e7d6ead1250a3ab93ef7f14059d41897828f48148", kill_on_drop: false }`
[INFO] [stderr]     Checking rayon-core v1.3.0
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]     Checking nail v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn save(&self, filename: &AsRef<Path>) -> Result<(), ::std::io::Error> {
[INFO] [stdout]     |                               ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[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/main.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn save(&self, filename: &AsRef<Path>) -> Result<(), ::std::io::Error> {
[INFO] [stdout]     |                               ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:264:25
[INFO] [stdout]     |
[INFO] [stdout] 264 |                     let mut p = image.get_pixel_mut(x as u32, y as u32);
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:264:25
[INFO] [stdout]     |
[INFO] [stdout] 264 |                     let mut p = image.get_pixel_mut(x as u32, y as u32);
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.12s
[INFO] running `Command { std: "docker" "inspect" "aeb69e264ff3b642e35e396e7d6ead1250a3ab93ef7f14059d41897828f48148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeb69e264ff3b642e35e396e7d6ead1250a3ab93ef7f14059d41897828f48148", kill_on_drop: false }`
[INFO] [stdout] aeb69e264ff3b642e35e396e7d6ead1250a3ab93ef7f14059d41897828f48148