[INFO] cloning repository https://github.com/syed-ghufran-hassan/even_odd_add_sub
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/syed-ghufran-hassan/even_odd_add_sub" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyed-ghufran-hassan%2Feven_odd_add_sub", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyed-ghufran-hassan%2Feven_odd_add_sub'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a7956b7fc26d28129c35adb32c320c152560f3a
[INFO] checking syed-ghufran-hassan/even_odd_add_sub against try#0fe3684930279e4d3be3aca66b30f82946ce9ac2 for pr-138340
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyed-ghufran-hassan%2Feven_odd_add_sub" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syed-ghufran-hassan/even_odd_add_sub on toolchain 0fe3684930279e4d3be3aca66b30f82946ce9ac2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/syed-ghufran-hassan/even_odd_add_sub
[INFO] finished tweaking git repo https://github.com/syed-ghufran-hassan/even_odd_add_sub
[INFO] tweaked toml for git repo https://github.com/syed-ghufran-hassan/even_odd_add_sub written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/syed-ghufran-hassan/even_odd_add_sub already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c046789fa3a93e1a18cc7f39a5594a4128e58918a209a0b0608fcf07ef61985
[INFO] running `Command { std: "docker" "start" "-a" "5c046789fa3a93e1a18cc7f39a5594a4128e58918a209a0b0608fcf07ef61985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c046789fa3a93e1a18cc7f39a5594a4128e58918a209a0b0608fcf07ef61985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c046789fa3a93e1a18cc7f39a5594a4128e58918a209a0b0608fcf07ef61985", kill_on_drop: false }`
[INFO] [stdout] 5c046789fa3a93e1a18cc7f39a5594a4128e58918a209a0b0608fcf07ef61985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20fdb70e5dc44608deac54b9e0e4ad673c29d10abeddfa09018de6416aa75fb7
[INFO] running `Command { std: "docker" "start" "-a" "20fdb70e5dc44608deac54b9e0e4ad673c29d10abeddfa09018de6416aa75fb7", kill_on_drop: false }`
[INFO] [stderr]     Checking text_io v0.1.7
[INFO] [stderr]     Checking rec2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `Checker` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn Checker(_new_num:i8)->i8
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `checker`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Checker` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn Checker(_new_num:i8)->i8
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `checker`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "20fdb70e5dc44608deac54b9e0e4ad673c29d10abeddfa09018de6416aa75fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20fdb70e5dc44608deac54b9e0e4ad673c29d10abeddfa09018de6416aa75fb7", kill_on_drop: false }`
[INFO] [stdout] 20fdb70e5dc44608deac54b9e0e4ad673c29d10abeddfa09018de6416aa75fb7