[INFO] cloning repository https://github.com/emorilebo/rust_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emorilebo/rust_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femorilebo%2Frust_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femorilebo%2Frust_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 597eb297fec8d4125b86b6fc17da138161c5fe29
[INFO] testing emorilebo/rust_calculator against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femorilebo%2Frust_calculator" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emorilebo/rust_calculator on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/emorilebo/rust_calculator
[INFO] finished tweaking git repo https://github.com/emorilebo/rust_calculator
[INFO] tweaked toml for git repo https://github.com/emorilebo/rust_calculator written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate git repo https://github.com/emorilebo/rust_calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcd5d2835622f046a5de7690c1ce77d9efa218ef4f156055965a76771a56d674
[INFO] running `Command { std: "docker" "start" "-a" "dcd5d2835622f046a5de7690c1ce77d9efa218ef4f156055965a76771a56d674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcd5d2835622f046a5de7690c1ce77d9efa218ef4f156055965a76771a56d674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcd5d2835622f046a5de7690c1ce77d9efa218ef4f156055965a76771a56d674", kill_on_drop: false }`
[INFO] [stdout] dcd5d2835622f046a5de7690c1ce77d9efa218ef4f156055965a76771a56d674
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 535f47a28551970ffc701bea46d15bf24624304662402c5d6ecf0a1ba3da99fb
[INFO] running `Command { std: "docker" "start" "-a" "535f47a28551970ffc701bea46d15bf24624304662402c5d6ecf0a1ba3da99fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling calcuator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found `,`
[INFO] [stdout]   --> src/main.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn nth(mut, self, n: usize) -> Option<String>{
[INFO] [stdout]    |           ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `self` parameter in function
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn nth(mut, self, n: usize) -> Option<String>{
[INFO] [stdout]    |             ^^^^ must be the first parameter of an associated function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `calcuator` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "535f47a28551970ffc701bea46d15bf24624304662402c5d6ecf0a1ba3da99fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "535f47a28551970ffc701bea46d15bf24624304662402c5d6ecf0a1ba3da99fb", kill_on_drop: false }`
[INFO] [stdout] 535f47a28551970ffc701bea46d15bf24624304662402c5d6ecf0a1ba3da99fb