[INFO] cloning repository https://github.com/hwrdtm/log-file-analyser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hwrdtm/log-file-analyser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwrdtm%2Flog-file-analyser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwrdtm%2Flog-file-analyser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1195ff6942062393bceb7e57ff971c54e908dcf
[INFO] checking hwrdtm/log-file-analyser against master#8365fcb2b840c95eeb0bc377af8bd498fad22245 for pr-145604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwrdtm%2Flog-file-analyser" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hwrdtm/log-file-analyser
[INFO] removed 1 missing examples
[INFO] finished tweaking git repo https://github.com/hwrdtm/log-file-analyser
[INFO] tweaked toml for git repo https://github.com/hwrdtm/log-file-analyser written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hwrdtm/log-file-analyser on toolchain 8365fcb2b840c95eeb0bc377af8bd498fad22245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hwrdtm/log-file-analyser 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" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: merge_and_print
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b963a03667296707846d8a7be4e063a54db0d639239bacacf35c4114c6805f0
[INFO] running `Command { std: "docker" "start" "-a" "0b963a03667296707846d8a7be4e063a54db0d639239bacacf35c4114c6805f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b963a03667296707846d8a7be4e063a54db0d639239bacacf35c4114c6805f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b963a03667296707846d8a7be4e063a54db0d639239bacacf35c4114c6805f0", kill_on_drop: false }`
[INFO] [stdout] 0b963a03667296707846d8a7be4e063a54db0d639239bacacf35c4114c6805f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 986908ad5c5b75b2aa0cb7b58b6a1a12635cec911b9c5c691bca93b626c2727d
[INFO] running `Command { std: "docker" "start" "-a" "986908ad5c5b75b2aa0cb7b58b6a1a12635cec911b9c5c691bca93b626c2727d", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: merge_and_print
[INFO] [stderr]     Checking log-file-analyser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> examples/merge_and_print/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     iter.collect::<Vec<_>>();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let _ = iter.collect::<Vec<_>>();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "986908ad5c5b75b2aa0cb7b58b6a1a12635cec911b9c5c691bca93b626c2727d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "986908ad5c5b75b2aa0cb7b58b6a1a12635cec911b9c5c691bca93b626c2727d", kill_on_drop: false }`
[INFO] [stdout] 986908ad5c5b75b2aa0cb7b58b6a1a12635cec911b9c5c691bca93b626c2727d