[INFO] fetching crate rogcat 0.4.1...
[INFO] checking rogcat-0.4.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate rogcat 0.4.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate rogcat 0.4.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rogcat 0.4.1
[INFO] finished tweaking crates.io crate rogcat 0.4.1
[INFO] tweaked toml for crates.io crate rogcat 0.4.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate rogcat 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c18ba5b347cdb7eeb1a79af4053b2f019ed90cd111251dc920c87092bf510c4
[INFO] running `Command { std: "docker" "start" "-a" "0c18ba5b347cdb7eeb1a79af4053b2f019ed90cd111251dc920c87092bf510c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c18ba5b347cdb7eeb1a79af4053b2f019ed90cd111251dc920c87092bf510c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c18ba5b347cdb7eeb1a79af4053b2f019ed90cd111251dc920c87092bf510c4", kill_on_drop: false }`
[INFO] [stdout] 0c18ba5b347cdb7eeb1a79af4053b2f019ed90cd111251dc920c87092bf510c4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c771a9727e823ef697dacd5f6d9a631e1a0c9a9eabe55e989af185e7fcba552a
[INFO] running `Command { std: "docker" "start" "-a" "c771a9727e823ef697dacd5f6d9a631e1a0c9a9eabe55e989af185e7fcba552a", kill_on_drop: false }`
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[INFO] [stderr]     Checking rogcat v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]   --> src/reader.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     child: Option<Child>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]   --> src/reader.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     child: Option<Child>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests/system.rs:41:71
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let result = run_rogcat(&cmd, None).unwrap_or_else(|_| panic!(cmd.join(" ")));
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` 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] 41 |         let result = run_rogcat(&cmd, None).unwrap_or_else(|_| panic!("{}", cmd.join(" ")));
[INFO] [stdout]    |                                                                       ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let result = run_rogcat(&cmd, None).unwrap_or_else(|_| std::panic::panic_any(cmd.join(" ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.16s
[INFO] running `Command { std: "docker" "inspect" "c771a9727e823ef697dacd5f6d9a631e1a0c9a9eabe55e989af185e7fcba552a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c771a9727e823ef697dacd5f6d9a631e1a0c9a9eabe55e989af185e7fcba552a", kill_on_drop: false }`
[INFO] [stdout] c771a9727e823ef697dacd5f6d9a631e1a0c9a9eabe55e989af185e7fcba552a