[INFO] cloning repository https://github.com/varjolintu/r9wm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/varjolintu/r9wm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarjolintu%2Fr9wm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarjolintu%2Fr9wm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dbcb7622a562f799062bffcd45bf0d3ce8e179b8
[INFO] checking varjolintu/r9wm against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarjolintu%2Fr9wm" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/varjolintu/r9wm 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/varjolintu/r9wm
[INFO] finished tweaking git repo https://github.com/varjolintu/r9wm
[INFO] tweaked toml for git repo https://github.com/varjolintu/r9wm written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/varjolintu/r9wm 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 5a46a1d482634c8c3d33714b0c63ce72442bb5ec82e2db00ddaed1833b8e4099
[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" "5a46a1d482634c8c3d33714b0c63ce72442bb5ec82e2db00ddaed1833b8e4099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a46a1d482634c8c3d33714b0c63ce72442bb5ec82e2db00ddaed1833b8e4099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a46a1d482634c8c3d33714b0c63ce72442bb5ec82e2db00ddaed1833b8e4099", kill_on_drop: false }`
[INFO] [stdout] 5a46a1d482634c8c3d33714b0c63ce72442bb5ec82e2db00ddaed1833b8e4099
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] eebde7107ecab688842eea928960bc5d40a32e71ff0af06d6b93a16e0eab571a
[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" "eebde7107ecab688842eea928960bc5d40a32e71ff0af06d6b93a16e0eab571a", kill_on_drop: false }`
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]     Checking r9wm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:23:53
[INFO] [stdout]    |
[INFO] [stdout] 23 |         Err(e) => eprintln!("couldn't spawn: {}", e.description()),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:23:53
[INFO] [stdout]    |
[INFO] [stdout] 23 |         Err(e) => eprintln!("couldn't spawn: {}", e.description()),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:86:61
[INFO] [stdout]    |
[INFO] [stdout] 86 |                             Err(e) => eprintln!("couldn't spawn: {}", e.description()),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:86:61
[INFO] [stdout]    |
[INFO] [stdout] 86 |                             Err(e) => eprintln!("couldn't spawn: {}", e.description()),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^
[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 4.13s
[INFO] running `Command { std: "docker" "inspect" "eebde7107ecab688842eea928960bc5d40a32e71ff0af06d6b93a16e0eab571a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eebde7107ecab688842eea928960bc5d40a32e71ff0af06d6b93a16e0eab571a", kill_on_drop: false }`
[INFO] [stdout] eebde7107ecab688842eea928960bc5d40a32e71ff0af06d6b93a16e0eab571a