[INFO] fetching crate hornbeam_ir 0.0.4...
[INFO] checking hornbeam_ir-0.0.4 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate hornbeam_ir 0.0.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate hornbeam_ir 0.0.4 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hornbeam_ir 0.0.4
[INFO] finished tweaking crates.io crate hornbeam_ir 0.0.4
[INFO] tweaked toml for crates.io crate hornbeam_ir 0.0.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages to latest compatible versions
[INFO] [stderr]       Adding ahash v0.3.8 (latest: v0.8.11)
[INFO] [stderr]       Adding dashmap v4.0.2 (latest: v6.0.1)
[INFO] [stderr]       Adding encode_unicode v0.3.6 (latest: v1.0.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (latest: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded insta v1.39.0
[INFO] [stderr]   Downloaded ahash v0.3.8
[INFO] [stderr]   Downloaded pest_consume v1.1.3
[INFO] [stderr]   Downloaded similar v2.6.0
[INFO] [stderr]   Downloaded pest_consume_macros v1.1.0
[INFO] [stderr]   Downloaded arc-interner v0.7.0
[INFO] [stderr]   Downloaded hornbeam_grammar v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbea7cd69ff25e981271dfc54dc1063b03b92c405753a93ad4ba9dc4ddb025a2
[INFO] running `Command { std: "docker" "start" "-a" "dbea7cd69ff25e981271dfc54dc1063b03b92c405753a93ad4ba9dc4ddb025a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbea7cd69ff25e981271dfc54dc1063b03b92c405753a93ad4ba9dc4ddb025a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbea7cd69ff25e981271dfc54dc1063b03b92c405753a93ad4ba9dc4ddb025a2", kill_on_drop: false }`
[INFO] [stdout] dbea7cd69ff25e981271dfc54dc1063b03b92c405753a93ad4ba9dc4ddb025a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88e745ac77d91a73a5d792fd799d0032878d9ea8f6ab03943677dab7d48e94c5
[INFO] running `Command { std: "docker" "start" "-a" "88e745ac77d91a73a5d792fd799d0032878d9ea8f6ab03943677dab7d48e94c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking utf8-width v0.1.7
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking similar v2.6.0
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking html-escape v0.2.13
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]     Checking insta v1.39.0
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking arc-interner v0.7.0
[INFO] [stderr]    Compiling pest_consume_macros v1.1.0
[INFO] [stderr]     Checking pest_consume v1.1.3
[INFO] [stderr]     Checking hornbeam_grammar v0.0.4
[INFO] [stderr]     Checking hornbeam_ir v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `peephole` is never used
[INFO] [stdout]   --> src/peephole.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn peephole<T, F: FnMut(&mut [T]) -> ()>(steps: &mut [T], peephole_width: usize, mut f: F) {
[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: function `peephole` is never used
[INFO] [stdout]   --> src/peephole.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn peephole<T, F: FnMut(&mut [T]) -> ()>(steps: &mut [T], peephole_width: usize, mut f: F) {
[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` profile [unoptimized + debuginfo] target(s) in 7.62s
[INFO] running `Command { std: "docker" "inspect" "88e745ac77d91a73a5d792fd799d0032878d9ea8f6ab03943677dab7d48e94c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88e745ac77d91a73a5d792fd799d0032878d9ea8f6ab03943677dab7d48e94c5", kill_on_drop: false }`
[INFO] [stdout] 88e745ac77d91a73a5d792fd799d0032878d9ea8f6ab03943677dab7d48e94c5