[INFO] fetching crate shellscript 0.3.1...
[INFO] checking shellscript-0.3.1 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] extracting crate shellscript 0.3.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate shellscript 0.3.1 on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shellscript 0.3.1
[INFO] finished tweaking crates.io crate shellscript 0.3.1
[INFO] tweaked toml for crates.io crate shellscript 0.3.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9de21dfa58b982812c7354e0df7e7caf8328cec6399f6ccf4de7fa7f19178028
[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" "9de21dfa58b982812c7354e0df7e7caf8328cec6399f6ccf4de7fa7f19178028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9de21dfa58b982812c7354e0df7e7caf8328cec6399f6ccf4de7fa7f19178028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9de21dfa58b982812c7354e0df7e7caf8328cec6399f6ccf4de7fa7f19178028", kill_on_drop: false }`
[INFO] [stdout] 9de21dfa58b982812c7354e0df7e7caf8328cec6399f6ccf4de7fa7f19178028
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77d86dd6a2717c594dbb160b28ab3b708dea76ffebda17e9a38ad09c7b452c39
[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" "77d86dd6a2717c594dbb160b28ab3b708dea76ffebda17e9a38ad09c7b452c39", kill_on_drop: false }`
[INFO] [stderr]     Checking shellscript v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `result2`
[INFO] [stdout]   --> src/lib.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let result2 = result.write(&mut buff).unwrap();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 0.28s
[INFO] running `Command { std: "docker" "inspect" "77d86dd6a2717c594dbb160b28ab3b708dea76ffebda17e9a38ad09c7b452c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77d86dd6a2717c594dbb160b28ab3b708dea76ffebda17e9a38ad09c7b452c39", kill_on_drop: false }`
[INFO] [stdout] 77d86dd6a2717c594dbb160b28ab3b708dea76ffebda17e9a38ad09c7b452c39