[INFO] cloning repository https://github.com/regulardeluxe/parrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/regulardeluxe/parrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fregulardeluxe%2Fparrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fregulardeluxe%2Fparrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88e051e60e42c2c909febd81366e1ae839538057
[INFO] checking regulardeluxe/parrot against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fregulardeluxe%2Fparrot" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/regulardeluxe/parrot on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/regulardeluxe/parrot
[INFO] finished tweaking git repo https://github.com/regulardeluxe/parrot
[INFO] tweaked toml for git repo https://github.com/regulardeluxe/parrot written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/regulardeluxe/parrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c74d7c0c54134b57e8991fd013468654c24533a52dcb3f0a82c9562b6bb491a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0c74d7c0c54134b57e8991fd013468654c24533a52dcb3f0a82c9562b6bb491a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c74d7c0c54134b57e8991fd013468654c24533a52dcb3f0a82c9562b6bb491a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c74d7c0c54134b57e8991fd013468654c24533a52dcb3f0a82c9562b6bb491a", kill_on_drop: false }`
[INFO] [stdout] 0c74d7c0c54134b57e8991fd013468654c24533a52dcb3f0a82c9562b6bb491a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e14c75265a033429b4b6aaf37cab7d4d418951ff469f33dba6bcac101e5ab889
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e14c75265a033429b4b6aaf37cab7d4d418951ff469f33dba6bcac101e5ab889", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking num-rational v0.1.39
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.15
[INFO] [stderr]     Checking docopt v0.8.1
[INFO] [stderr]     Checking parrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: structure field `arg_FILE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     arg_FILE: String,
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to snake case: `arg_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `arg_FILE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     arg_FILE: String,
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to snake case: `arg_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.15s
[INFO] running `Command { std: "docker" "inspect" "e14c75265a033429b4b6aaf37cab7d4d418951ff469f33dba6bcac101e5ab889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e14c75265a033429b4b6aaf37cab7d4d418951ff469f33dba6bcac101e5ab889", kill_on_drop: false }`
[INFO] [stdout] e14c75265a033429b4b6aaf37cab7d4d418951ff469f33dba6bcac101e5ab889