[INFO] cloning repository https://github.com/leucoide/monkeys
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leucoide/monkeys" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleucoide%2Fmonkeys", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleucoide%2Fmonkeys'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f20deed9f59e54d4fd723ab74061995c9e89f5a
[INFO] checking leucoide/monkeys against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleucoide%2Fmonkeys" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leucoide/monkeys on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leucoide/monkeys
[INFO] finished tweaking git repo https://github.com/leucoide/monkeys
[INFO] tweaked toml for git repo https://github.com/leucoide/monkeys written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/leucoide/monkeys 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peg-runtime v0.6.2
[INFO] [stderr]   Downloaded peg-macros v0.6.2
[INFO] [stderr]   Downloaded peg v0.6.2
[INFO] [stderr]   Downloaded libc v0.2.72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad02c3fc78d1f2f07117eb10992195a7bfcdb099a1e34a26127213b9e20754c2
[INFO] running `Command { std: "docker" "start" "-a" "ad02c3fc78d1f2f07117eb10992195a7bfcdb099a1e34a26127213b9e20754c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad02c3fc78d1f2f07117eb10992195a7bfcdb099a1e34a26127213b9e20754c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad02c3fc78d1f2f07117eb10992195a7bfcdb099a1e34a26127213b9e20754c2", kill_on_drop: false }`
[INFO] [stdout] ad02c3fc78d1f2f07117eb10992195a7bfcdb099a1e34a26127213b9e20754c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fb5a300b18f4038b92bd4cf3cf4fe716cca29cc4dc3cb7c1d43319cfbddcae3
[INFO] running `Command { std: "docker" "start" "-a" "2fb5a300b18f4038b92bd4cf3cf4fe716cca29cc4dc3cb7c1d43319cfbddcae3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling peg-runtime v0.6.2
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling peg-macros v0.6.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking peg v0.6.2
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking monkeys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `peg` is imported redundantly
[INFO] [stdout]  --> src/lang.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use peg;
[INFO] [stdout]   |     ^^^ the item `peg` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `peg` is imported redundantly
[INFO] [stdout]  --> src/lang.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use peg;
[INFO] [stdout]   |     ^^^ the item `peg` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.74s
[INFO] running `Command { std: "docker" "inspect" "2fb5a300b18f4038b92bd4cf3cf4fe716cca29cc4dc3cb7c1d43319cfbddcae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb5a300b18f4038b92bd4cf3cf4fe716cca29cc4dc3cb7c1d43319cfbddcae3", kill_on_drop: false }`
[INFO] [stdout] 2fb5a300b18f4038b92bd4cf3cf4fe716cca29cc4dc3cb7c1d43319cfbddcae3