[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] checking emorilebo/rust_calculator against try#b8ee37b59c6e1f39bae18b85e057975ab0d89308 for pr-139587-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femorilebo%2Frust_calculator" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emorilebo/rust_calculator on toolchain b8ee37b59c6e1f39bae18b85e057975ab0d89308
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "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-1-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd93520ff81ae209bc4719292abde37ca689b9cb70f55098859fcc4fbf03f1a2
[INFO] running `Command { std: "docker" "start" "-a" "dd93520ff81ae209bc4719292abde37ca689b9cb70f55098859fcc4fbf03f1a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd93520ff81ae209bc4719292abde37ca689b9cb70f55098859fcc4fbf03f1a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd93520ff81ae209bc4719292abde37ca689b9cb70f55098859fcc4fbf03f1a2", kill_on_drop: false }`
[INFO] [stdout] dd93520ff81ae209bc4719292abde37ca689b9cb70f55098859fcc4fbf03f1a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 591360b757c8174e0ddf42932459897751f3ad50e8b277b0289b6b42129d579a
[INFO] running `Command { std: "docker" "start" "-a" "591360b757c8174e0ddf42932459897751f3ad50e8b277b0289b6b42129d579a", kill_on_drop: false }`
[INFO] [stderr]     Checking 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: 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: 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] [stderr] error: could not compile `calcuator` (bin "calcuator" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `calcuator` (bin "calcuator") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "591360b757c8174e0ddf42932459897751f3ad50e8b277b0289b6b42129d579a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "591360b757c8174e0ddf42932459897751f3ad50e8b277b0289b6b42129d579a", kill_on_drop: false }`
[INFO] [stdout] 591360b757c8174e0ddf42932459897751f3ad50e8b277b0289b6b42129d579a