[INFO] fetching crate willow-encoding 0.1.0...
[INFO] checking willow-encoding-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate willow-encoding 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate willow-encoding 0.1.0
[INFO] finished tweaking crates.io crate willow-encoding 0.1.0
[INFO] tweaked toml for crates.io crate willow-encoding 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate willow-encoding 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding ufotofu v0.4.3 (available: v0.7.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maybe-std v0.1.2
[INFO] [stderr]   Downloaded ufotofu_queues v0.5.0
[INFO] [stderr]   Downloaded syncify v0.1.0
[INFO] [stderr]   Downloaded ufotofu v0.4.3
[INFO] [stderr]   Downloaded wrapper v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92a398fb7f1dfa5df514ec4cc48f2f16a6e6b98033cd5fae159aa7e2e0e2ff40
[INFO] running `Command { std: "docker" "start" "-a" "92a398fb7f1dfa5df514ec4cc48f2f16a6e6b98033cd5fae159aa7e2e0e2ff40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92a398fb7f1dfa5df514ec4cc48f2f16a6e6b98033cd5fae159aa7e2e0e2ff40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a398fb7f1dfa5df514ec4cc48f2f16a6e6b98033cd5fae159aa7e2e0e2ff40", kill_on_drop: false }`
[INFO] [stdout] 92a398fb7f1dfa5df514ec4cc48f2f16a6e6b98033cd5fae159aa7e2e0e2ff40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f111903fef67c5a08e5408532bb1796450e285d17145f189e58c846435430e
[INFO] running `Command { std: "docker" "start" "-a" "15f111903fef67c5a08e5408532bb1796450e285d17145f189e58c846435430e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking maybe-std v0.1.2
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking ufotofu_queues v0.5.0
[INFO] [stderr]     Checking wrapper v0.1.1
[INFO] [stderr]     Checking ufotofu v0.4.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling syncify v0.1.0
[INFO] [stderr]     Checking willow-encoding v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `syncify::syncify_replace`
[INFO] [stdout]  --> src/bytes.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use syncify::syncify_replace;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syncify::syncify_replace`
[INFO] [stdout]  --> src/bytes.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use syncify::syncify_replace;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.76s
[INFO] running `Command { std: "docker" "inspect" "15f111903fef67c5a08e5408532bb1796450e285d17145f189e58c846435430e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f111903fef67c5a08e5408532bb1796450e285d17145f189e58c846435430e", kill_on_drop: false }`
[INFO] [stdout] 15f111903fef67c5a08e5408532bb1796450e285d17145f189e58c846435430e