[INFO] cloning repository https://github.com/Virviil/cow.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Virviil/cow.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVirviil%2Fcow.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVirviil%2Fcow.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 944162b1ba04c7ca67758b6c3e3ebfc8887d7780
[INFO] checking Virviil/cow.rs against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVirviil%2Fcow.rs" "/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/Virviil/cow.rs 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/Virviil/cow.rs
[INFO] finished tweaking git repo https://github.com/Virviil/cow.rs
[INFO] tweaked toml for git repo https://github.com/Virviil/cow.rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Virviil/cow.rs 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-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" "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] aa887b7fc8bf6b1c87ba3a2089a6fefa2da248c026b785ceeab4a701e32fb2cb
[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" "aa887b7fc8bf6b1c87ba3a2089a6fefa2da248c026b785ceeab4a701e32fb2cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa887b7fc8bf6b1c87ba3a2089a6fefa2da248c026b785ceeab4a701e32fb2cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa887b7fc8bf6b1c87ba3a2089a6fefa2da248c026b785ceeab4a701e32fb2cb", kill_on_drop: false }`
[INFO] [stdout] aa887b7fc8bf6b1c87ba3a2089a6fefa2da248c026b785ceeab4a701e32fb2cb
[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" "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] aa5d13b84065eefcd8487454be8c8f4a8a95f56a025ff05b5f4e5a3f8e65cb97
[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" "aa5d13b84065eefcd8487454be8c8f4a8a95f56a025ff05b5f4e5a3f8e65cb97", kill_on_drop: false }`
[INFO] [stderr]     Checking cow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]    --> src/commands.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 |     let num = s.trim_right().parse::<i32>().expect("failed parsing int from stdin");
[INFO] [stdout]     |                 ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]    --> src/commands.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 |     let num = s.trim_right().parse::<i32>().expect("failed parsing int from stdin");
[INFO] [stdout]     |                 ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "aa5d13b84065eefcd8487454be8c8f4a8a95f56a025ff05b5f4e5a3f8e65cb97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa5d13b84065eefcd8487454be8c8f4a8a95f56a025ff05b5f4e5a3f8e65cb97", kill_on_drop: false }`
[INFO] [stdout] aa5d13b84065eefcd8487454be8c8f4a8a95f56a025ff05b5f4e5a3f8e65cb97