[INFO] fetching crate libproc 0.9.1...
[INFO] checking libproc-0.9.1 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate libproc 0.9.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libproc 0.9.1 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libproc 0.9.1
[INFO] finished tweaking crates.io crate libproc 0.9.1
[INFO] tweaked toml for crates.io crate libproc 0.9.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate libproc 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 164ebafde880def62a7b0f8b42ab63116e24b1dd251c462b2902a0681839793d
[INFO] running `Command { std: "docker" "start" "-a" "164ebafde880def62a7b0f8b42ab63116e24b1dd251c462b2902a0681839793d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "164ebafde880def62a7b0f8b42ab63116e24b1dd251c462b2902a0681839793d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "164ebafde880def62a7b0f8b42ab63116e24b1dd251c462b2902a0681839793d", kill_on_drop: false }`
[INFO] [stdout] 164ebafde880def62a7b0f8b42ab63116e24b1dd251c462b2902a0681839793d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b68ba20ba52205a38d916b2aa2bd2570af044e9c6bc957c5f21116f888ec8b8
[INFO] running `Command { std: "docker" "start" "-a" "4b68ba20ba52205a38d916b2aa2bd2570af044e9c6bc957c5f21116f888ec8b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking errno v0.2.5
[INFO] [stderr]     Checking libproc v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/libproc/kmesg_buffer.rs:114:40
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 Err(message) => panic!(message)
[INFO] [stdout]     |                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 Err(message) => panic!("{}", message)
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 Err(message) => std::panic::panic_any(message)
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "4b68ba20ba52205a38d916b2aa2bd2570af044e9c6bc957c5f21116f888ec8b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b68ba20ba52205a38d916b2aa2bd2570af044e9c6bc957c5f21116f888ec8b8", kill_on_drop: false }`
[INFO] [stdout] 4b68ba20ba52205a38d916b2aa2bd2570af044e9c6bc957c5f21116f888ec8b8