[INFO] fetching crate autosurgeon 0.8.2...
[INFO] checking autosurgeon-0.8.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate autosurgeon 0.8.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate autosurgeon 0.8.2 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 autosurgeon 0.8.2
[INFO] finished tweaking crates.io crate autosurgeon 0.8.2
[INFO] tweaked toml for crates.io crate autosurgeon 0.8.2 written to /workspace/builds/worker-3-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]     Updating crates.io index
[INFO] [stderr]      Locking 57 packages
[INFO] [stderr]       Adding approx v0.3.2 (latest: v0.5.1)
[INFO] [stderr]       Adding bitmaps v2.1.0 (latest: v3.2.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding sized-chunks v0.6.5 (latest: v0.7.0)
[INFO] [stderr]       Adding wasi v0.11.0+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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded leb128 v0.2.5
[INFO] [stderr]   Downloaded approx v0.3.2
[INFO] [stderr]   Downloaded automerge-test v0.4.3
[INFO] [stderr]   Downloaded decorum v0.3.1
[INFO] [stderr]   Downloaded itertools v0.12.1
[INFO] [stderr]   Downloaded automerge v0.5.9
[INFO] [stderr]   Downloaded autosurgeon-derive v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 56a753d94c691196e3ece0229f2e1591515a4b1cb3f7c6d5b60d19ea2a3e2869
[INFO] running `Command { std: "docker" "start" "-a" "56a753d94c691196e3ece0229f2e1591515a4b1cb3f7c6d5b60d19ea2a3e2869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56a753d94c691196e3ece0229f2e1591515a4b1cb3f7c6d5b60d19ea2a3e2869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56a753d94c691196e3ece0229f2e1591515a4b1cb3f7c6d5b60d19ea2a3e2869", kill_on_drop: false }`
[INFO] [stdout] 56a753d94c691196e3ece0229f2e1591515a4b1cb3f7c6d5b60d19ea2a3e2869
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 466a60f741bdf862234f29f7e303e61e48e688f9f03bc96a024902647121fc2e
[INFO] running `Command { std: "docker" "start" "-a" "466a60f741bdf862234f29f7e303e61e48e688f9f03bc96a024902647121fc2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]    Compiling autosurgeon-derive v0.8.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking smol_str v0.2.1
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking decorum v0.3.1
[INFO] [stderr]     Checking automerge v0.5.9
[INFO] [stderr]     Checking automerge-test v0.4.3
[INFO] [stderr]     Checking autosurgeon v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.50s
[INFO] running `Command { std: "docker" "inspect" "466a60f741bdf862234f29f7e303e61e48e688f9f03bc96a024902647121fc2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "466a60f741bdf862234f29f7e303e61e48e688f9f03bc96a024902647121fc2e", kill_on_drop: false }`
[INFO] [stdout] 466a60f741bdf862234f29f7e303e61e48e688f9f03bc96a024902647121fc2e
[INFO] checking autosurgeon-0.8.2 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate autosurgeon 0.8.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate autosurgeon 0.8.2 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate autosurgeon 0.8.2
[INFO] finished tweaking crates.io crate autosurgeon 0.8.2
[INFO] tweaked toml for crates.io crate autosurgeon 0.8.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 57 packages
[INFO] [stderr]       Adding approx v0.3.2 (latest: v0.5.1)
[INFO] [stderr]       Adding bitmaps v2.1.0 (latest: v3.2.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding sized-chunks v0.6.5 (latest: v0.7.0)
[INFO] [stderr]       Adding wasi v0.11.0+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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e921ee13263c462cf11aaea7279a9ae1b5f0f060cf1bc1d144167bc25993486a
[INFO] running `Command { std: "docker" "start" "-a" "e921ee13263c462cf11aaea7279a9ae1b5f0f060cf1bc1d144167bc25993486a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e921ee13263c462cf11aaea7279a9ae1b5f0f060cf1bc1d144167bc25993486a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e921ee13263c462cf11aaea7279a9ae1b5f0f060cf1bc1d144167bc25993486a", kill_on_drop: false }`
[INFO] [stdout] e921ee13263c462cf11aaea7279a9ae1b5f0f060cf1bc1d144167bc25993486a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a07b1025140e4a304ebf0e500b48c3cfd0c627858c92a36addd13622b7c1e9ee
[INFO] running `Command { std: "docker" "start" "-a" "a07b1025140e4a304ebf0e500b48c3cfd0c627858c92a36addd13622b7c1e9ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]    Compiling autosurgeon-derive v0.8.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking smol_str v0.2.1
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking decorum v0.3.1
[INFO] [stderr]     Checking automerge v0.5.9
[INFO] [stderr]     Checking automerge-test v0.4.3
[INFO] [stderr]     Checking autosurgeon v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.56s
[INFO] running `Command { std: "docker" "inspect" "a07b1025140e4a304ebf0e500b48c3cfd0c627858c92a36addd13622b7c1e9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07b1025140e4a304ebf0e500b48c3cfd0c627858c92a36addd13622b7c1e9ee", kill_on_drop: false }`
[INFO] [stdout] a07b1025140e4a304ebf0e500b48c3cfd0c627858c92a36addd13622b7c1e9ee