[INFO] cloning repository https://github.com/dgrisham/codesignal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dgrisham/codesignal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgrisham%2Fcodesignal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgrisham%2Fcodesignal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f8e37c31526e06cc724805911f571c5fca59e3e
[INFO] checking dgrisham/codesignal against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgrisham%2Fcodesignal" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dgrisham/codesignal 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/dgrisham/codesignal
[INFO] finished tweaking git repo https://github.com/dgrisham/codesignal
[INFO] tweaked toml for git repo https://github.com/dgrisham/codesignal written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/dgrisham/codesignal 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 14636755c35686ab812aee2e64ae8fcb247a57c1405d3736598fc0d40f556507
[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" "14636755c35686ab812aee2e64ae8fcb247a57c1405d3736598fc0d40f556507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14636755c35686ab812aee2e64ae8fcb247a57c1405d3736598fc0d40f556507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14636755c35686ab812aee2e64ae8fcb247a57c1405d3736598fc0d40f556507", kill_on_drop: false }`
[INFO] [stdout] 14636755c35686ab812aee2e64ae8fcb247a57c1405d3736598fc0d40f556507
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] bcb7dc5acace91a66354240e519dc321b3d008b220ba17bbe93d9f88039f41e9
[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" "bcb7dc5acace91a66354240e519dc321b3d008b220ba17bbe93d9f88039f41e9", kill_on_drop: false }`
[INFO] [stderr]     Checking codesignal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `is_even` found for type `i32` in the current scope
[INFO] [stdout]   --> src/reverse_in_parentheses.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |         } else if parens_level.is_even() {
[INFO] [stdout]    |                                ^^^^^^^ method not found in `i32`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `codesignal`
[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] [stdout] error[E0599]: no method named `is_even` found for type `i32` in the current scope
[INFO] [stdout]   --> src/reverse_in_parentheses.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |         } else if parens_level.is_even() {
[INFO] [stdout]    |                                ^^^^^^^ method not found in `i32`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bcb7dc5acace91a66354240e519dc321b3d008b220ba17bbe93d9f88039f41e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcb7dc5acace91a66354240e519dc321b3d008b220ba17bbe93d9f88039f41e9", kill_on_drop: false }`
[INFO] [stdout] bcb7dc5acace91a66354240e519dc321b3d008b220ba17bbe93d9f88039f41e9