[INFO] cloning repository https://github.com/problemlow/learningRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/problemlow/learningRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproblemlow%2FlearningRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproblemlow%2FlearningRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 770762841a352dd29b826ed62fcc8c2aa8173371
[INFO] checking problemlow/learningRust against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproblemlow%2FlearningRust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/problemlow/learningRust
[INFO] finished tweaking git repo https://github.com/problemlow/learningRust
[INFO] tweaked toml for git repo https://github.com/problemlow/learningRust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/problemlow/learningRust on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/problemlow/learningRust 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6cfd64aa29ecc460f6558ba4bbdb4f1e72b9c1d65499bf829abf7471dd6e6cc
[INFO] running `Command { std: "docker" "start" "-a" "b6cfd64aa29ecc460f6558ba4bbdb4f1e72b9c1d65499bf829abf7471dd6e6cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6cfd64aa29ecc460f6558ba4bbdb4f1e72b9c1d65499bf829abf7471dd6e6cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6cfd64aa29ecc460f6558ba4bbdb4f1e72b9c1d65499bf829abf7471dd6e6cc", kill_on_drop: false }`
[INFO] [stdout] b6cfd64aa29ecc460f6558ba4bbdb4f1e72b9c1d65499bf829abf7471dd6e6cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4000539c6263cdf1e74ffadcadfaf8ebfd1ed144fb7d2bb327c7b92f868a3efb
[INFO] running `Command { std: "docker" "start" "-a" "4000539c6263cdf1e74ffadcadfaf8ebfd1ed144fb7d2bb327c7b92f868a3efb", kill_on_drop: false }`
[INFO] [stderr]     Checking learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `!` or `::`, found `a`
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | a
[INFO] [stdout]   |  - expected one of `!` or `::`
[INFO] [stdout] 7 | a
[INFO] [stdout]   | ^ unexpected token
[INFO] [stdout]   |
[INFO] [stdout] help: there is a keyword `as` with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 6 | as
[INFO] [stdout]   |  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!` or `::`, found `a`
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | a
[INFO] [stdout]   |  - expected one of `!` or `::`
[INFO] [stdout] 7 | a
[INFO] [stdout]   | ^ unexpected token
[INFO] [stdout]   |
[INFO] [stdout] help: there is a keyword `as` with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 6 | as
[INFO] [stdout]   |  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learning` (bin "learning") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `learning` (bin "learning" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4000539c6263cdf1e74ffadcadfaf8ebfd1ed144fb7d2bb327c7b92f868a3efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4000539c6263cdf1e74ffadcadfaf8ebfd1ed144fb7d2bb327c7b92f868a3efb", kill_on_drop: false }`
[INFO] [stdout] 4000539c6263cdf1e74ffadcadfaf8ebfd1ed144fb7d2bb327c7b92f868a3efb