[INFO] cloning repository https://github.com/crossterm-rs/examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crossterm-rs/examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrossterm-rs%2Fexamples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrossterm-rs%2Fexamples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51ef3de413d8f673690b2c7d47a73928f59b92df
[INFO] checking crossterm-rs/examples against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrossterm-rs%2Fexamples" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crossterm-rs/examples on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crossterm-rs/examples
[INFO] finished tweaking git repo https://github.com/crossterm-rs/examples
[INFO] tweaked toml for git repo https://github.com/crossterm-rs/examples written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/crossterm-rs/examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", 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] a7d6185905934799ed3d0ac85847267ece0d24318594f95372c27927a39a0fd1
[INFO] running `Command { std: "docker" "start" "-a" "a7d6185905934799ed3d0ac85847267ece0d24318594f95372c27927a39a0fd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7d6185905934799ed3d0ac85847267ece0d24318594f95372c27927a39a0fd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d6185905934799ed3d0ac85847267ece0d24318594f95372c27927a39a0fd1", kill_on_drop: false }`
[INFO] [stdout] a7d6185905934799ed3d0ac85847267ece0d24318594f95372c27927a39a0fd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1da79b18ce9d16a921d2e6537e4ec8379759166d6497b077aefc3f0437a520a
[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" "b1da79b18ce9d16a921d2e6537e4ec8379759166d6497b077aefc3f0437a520a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking crossterm v0.12.1 (https://github.com/crossterm-rs/crossterm#f2a4df20)
[INFO] [stderr]     Checking crossterm-examples v0.0.1 (/opt/rustwide/workdir/examples)
[INFO] [stderr]     Checking first-depth-search v0.0.1 (/opt/rustwide/workdir/first-depth-search)
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> examples/src/bin/command_bar.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             count += 1;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking snake v0.0.1 (/opt/rustwide/workdir/snake)
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> examples/src/bin/command_bar.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             count += 1;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.89s
[INFO] running `Command { std: "docker" "inspect" "b1da79b18ce9d16a921d2e6537e4ec8379759166d6497b077aefc3f0437a520a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1da79b18ce9d16a921d2e6537e4ec8379759166d6497b077aefc3f0437a520a", kill_on_drop: false }`
[INFO] [stdout] b1da79b18ce9d16a921d2e6537e4ec8379759166d6497b077aefc3f0437a520a