[INFO] fetching crate btparse 0.1.1...
[INFO] checking btparse-0.1.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate btparse 0.1.1 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate btparse 0.1.1 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-37/source/rust-toolchain
[INFO] started tweaking crates.io crate btparse 0.1.1
[INFO] finished tweaking crates.io crate btparse 0.1.1
[INFO] tweaked toml for crates.io crate btparse 0.1.1 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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 indenter v0.1.3
[INFO] [stderr]   Downloaded eyre v0.3.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3dea2d3fd28890655bcfebfc97edb21976590aab99ec4866026fc9c190a2621
[INFO] running `Command { std: "docker" "start" "-a" "d3dea2d3fd28890655bcfebfc97edb21976590aab99ec4866026fc9c190a2621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3dea2d3fd28890655bcfebfc97edb21976590aab99ec4866026fc9c190a2621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3dea2d3fd28890655bcfebfc97edb21976590aab99ec4866026fc9c190a2621", kill_on_drop: false }`
[INFO] [stdout] d3dea2d3fd28890655bcfebfc97edb21976590aab99ec4866026fc9c190a2621
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ddf0c562fe0bf153caa272aa54bc74e076e389d2ccfd77f2bcfb1c4121a5387
[INFO] running `Command { std: "docker" "start" "-a" "3ddf0c562fe0bf153caa272aa54bc74e076e389d2ccfd77f2bcfb1c4121a5387", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling eyre v0.3.10
[INFO] [stderr]     Checking indenter v0.1.3
[INFO] [stderr]     Checking btparse v0.1.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/lib.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Empty,
[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: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/lib.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Empty,
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking btparse v0.1.1 (/tmp/fixit)
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/lib.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/lib.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Empty,
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "3ddf0c562fe0bf153caa272aa54bc74e076e389d2ccfd77f2bcfb1c4121a5387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ddf0c562fe0bf153caa272aa54bc74e076e389d2ccfd77f2bcfb1c4121a5387", kill_on_drop: false }`
[INFO] [stdout] 3ddf0c562fe0bf153caa272aa54bc74e076e389d2ccfd77f2bcfb1c4121a5387