[INFO] cloning repository https://github.com/staktrace/khaki
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/staktrace/khaki" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaktrace%2Fkhaki", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaktrace%2Fkhaki'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6ae73af848a4a0049964f6213683d4a8b4bc0e5
[INFO] testing staktrace/khaki against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaktrace%2Fkhaki" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/staktrace/khaki on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/staktrace/khaki
[INFO] finished tweaking git repo https://github.com/staktrace/khaki
[INFO] tweaked toml for git repo https://github.com/staktrace/khaki written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/staktrace/khaki already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hmac-sha256 v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a26365bc5aba333c41983aae4c2e379396e4b52f2e4fbe049ea2544284705e83
[INFO] running `Command { std: "docker" "start" "-a" "a26365bc5aba333c41983aae4c2e379396e4b52f2e4fbe049ea2544284705e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a26365bc5aba333c41983aae4c2e379396e4b52f2e4fbe049ea2544284705e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26365bc5aba333c41983aae4c2e379396e4b52f2e4fbe049ea2544284705e83", kill_on_drop: false }`
[INFO] [stdout] a26365bc5aba333c41983aae4c2e379396e4b52f2e4fbe049ea2544284705e83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8881560760b4b09c2191af5a50714a0aff112202c2ef92a2289b429c6d30cace
[INFO] running `Command { std: "docker" "start" "-a" "8881560760b4b09c2191af5a50714a0aff112202c2ef92a2289b429c6d30cace", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling hmac-sha256 v0.1.2
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling khaki v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.59s
[INFO] running `Command { std: "docker" "inspect" "8881560760b4b09c2191af5a50714a0aff112202c2ef92a2289b429c6d30cace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8881560760b4b09c2191af5a50714a0aff112202c2ef92a2289b429c6d30cace", kill_on_drop: false }`
[INFO] [stdout] 8881560760b4b09c2191af5a50714a0aff112202c2ef92a2289b429c6d30cace
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60c99c88856aff702100bdcf38b524f1aae5f7c3bf53f42b34193d0f4dfa85f3
[INFO] running `Command { std: "docker" "start" "-a" "60c99c88856aff702100bdcf38b524f1aae5f7c3bf53f42b34193d0f4dfa85f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling khaki v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected item, found keyword `for`
[INFO] [stdout]  --> examples/args.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | for arg in args().skip(1) {
[INFO] [stdout]   | ^^^ expected item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `khaki` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: expected item, found keyword `let`
[INFO] [stdout]  --> examples/echo.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | let stdin = stdin();
[INFO] [stdout]   | ^^^ expected item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "60c99c88856aff702100bdcf38b524f1aae5f7c3bf53f42b34193d0f4dfa85f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60c99c88856aff702100bdcf38b524f1aae5f7c3bf53f42b34193d0f4dfa85f3", kill_on_drop: false }`
[INFO] [stdout] 60c99c88856aff702100bdcf38b524f1aae5f7c3bf53f42b34193d0f4dfa85f3