[INFO] cloning repository https://github.com/OtaK/overtrack-capture
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OtaK/overtrack-capture" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOtaK%2Fovertrack-capture", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOtaK%2Fovertrack-capture'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 226a43b57899c981765c5507cf6c267f99611a8e
[INFO] checking OtaK/overtrack-capture against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOtaK%2Fovertrack-capture" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OtaK/overtrack-capture 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/OtaK/overtrack-capture
[INFO] finished tweaking git repo https://github.com/OtaK/overtrack-capture
[INFO] tweaked toml for git repo https://github.com/OtaK/overtrack-capture written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/OtaK/overtrack-capture 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e032c348f012a17b9a439d15eb4669b1cd0988b38ca549b2ec088d623f66f77
[INFO] running `Command { std: "docker" "start" "-a" "8e032c348f012a17b9a439d15eb4669b1cd0988b38ca549b2ec088d623f66f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e032c348f012a17b9a439d15eb4669b1cd0988b38ca549b2ec088d623f66f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e032c348f012a17b9a439d15eb4669b1cd0988b38ca549b2ec088d623f66f77", kill_on_drop: false }`
[INFO] [stdout] 8e032c348f012a17b9a439d15eb4669b1cd0988b38ca549b2ec088d623f66f77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] f44c383b4b62e321102f1447590ffd7e8d4056a041fbecbe5d38a18986e817a4
[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" "f44c383b4b62e321102f1447590ffd7e8d4056a041fbecbe5d38a18986e817a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling scrap v0.5.0 (https://github.com/OtaK/scrap?branch=feature/deref-mut#4c38d136)
[INFO] [stderr]    Compiling sysinfo v0.15.2
[INFO] [stderr]     Checking block v0.1.6
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stdout] error[E0596]: cannot borrow data in a `&` reference as mutable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/scrap-2fc3a08aa2ed27c7/4c38d13/src/common/x11.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         &mut self.0
[INFO] [stdout]    |         ^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrap`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f44c383b4b62e321102f1447590ffd7e8d4056a041fbecbe5d38a18986e817a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f44c383b4b62e321102f1447590ffd7e8d4056a041fbecbe5d38a18986e817a4", kill_on_drop: false }`
[INFO] [stdout] f44c383b4b62e321102f1447590ffd7e8d4056a041fbecbe5d38a18986e817a4