[INFO] fetching crate gawires-diff 1.0.0...
[INFO] checking gawires-diff-1.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate gawires-diff 1.0.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate gawires-diff 1.0.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gawires-diff 1.0.0
[INFO] finished tweaking crates.io crate gawires-diff 1.0.0
[INFO] tweaked toml for crates.io crate gawires-diff 1.0.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding integer-encoding v2.1.3 (latest: v4.0.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding proptest v0.10.1 (latest: v1.4.0)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_xorshift v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47c1fbb0790331cee8bf02d94594f9fec5db7c0fed9d81c9143eb15258770980
[INFO] running `Command { std: "docker" "start" "-a" "47c1fbb0790331cee8bf02d94594f9fec5db7c0fed9d81c9143eb15258770980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47c1fbb0790331cee8bf02d94594f9fec5db7c0fed9d81c9143eb15258770980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c1fbb0790331cee8bf02d94594f9fec5db7c0fed9d81c9143eb15258770980", kill_on_drop: false }`
[INFO] [stdout] 47c1fbb0790331cee8bf02d94594f9fec5db7c0fed9d81c9143eb15258770980
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14cb60ccb461ab06c623d87ace25e64ecfcc1d0bf4ad1e4a4d7907ce4f81eb4e
[INFO] running `Command { std: "docker" "start" "-a" "14cb60ccb461ab06c623d87ace25e64ecfcc1d0bf4ad1e4a4d7907ce4f81eb4e", kill_on_drop: false }`
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking integer-encoding v2.1.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking sacabase v2.0.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking divsufsort v2.0.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]     Checking sacapart v2.0.0
[INFO] [stderr]     Checking gawires-diff v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.27s
[INFO] running `Command { std: "docker" "inspect" "14cb60ccb461ab06c623d87ace25e64ecfcc1d0bf4ad1e4a4d7907ce4f81eb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14cb60ccb461ab06c623d87ace25e64ecfcc1d0bf4ad1e4a4d7907ce4f81eb4e", kill_on_drop: false }`
[INFO] [stdout] 14cb60ccb461ab06c623d87ace25e64ecfcc1d0bf4ad1e4a4d7907ce4f81eb4e