[INFO] fetching crate its_ok 0.1.0...
[INFO] checking its_ok-0.1.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate its_ok 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate its_ok 0.1.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate its_ok 0.1.0
[INFO] finished tweaking crates.io crate its_ok 0.1.0
[INFO] tweaked toml for crates.io crate its_ok 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28418d246a8c93bb4687aa3a683471ca91335e94beb164aef83d7ae99d7f988d
[INFO] running `Command { std: "docker" "start" "-a" "28418d246a8c93bb4687aa3a683471ca91335e94beb164aef83d7ae99d7f988d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28418d246a8c93bb4687aa3a683471ca91335e94beb164aef83d7ae99d7f988d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28418d246a8c93bb4687aa3a683471ca91335e94beb164aef83d7ae99d7f988d", kill_on_drop: false }`
[INFO] [stdout] 28418d246a8c93bb4687aa3a683471ca91335e94beb164aef83d7ae99d7f988d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 260a20dda251d244a8ecef7e7bbed191882ee7d5ecee0ed837b369aa23cee9fe
[INFO] running `Command { std: "docker" "start" "-a" "260a20dda251d244a8ecef7e7bbed191882ee7d5ecee0ed837b369aa23cee9fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking its_ok v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::str::from_utf8` with a invalid literal always return an error
[INFO] [stdout]   --> tests/expansion.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let invalid_utf8 = &[0xFF, 0xFF, 0xFF, 0xFF];
[INFO] [stdout]    |                             ------------------------ the literal was valid UTF-8 up to the 0 bytes
[INFO] [stdout] 18 |         str::from_utf8(invalid_utf8)?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_from_utf8)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::str::from_utf8` with a invalid literal always return an error
[INFO] [stdout]   --> tests/expansion.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let invalid_utf8 = &[0xFF, 0xFF, 0xFF, 0xFF];
[INFO] [stdout]    |                             ------------------------ the literal was valid UTF-8 up to the 0 bytes
[INFO] [stdout] 36 |         unsafe { str::from_utf8(invalid_utf8)?; }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.86s
[INFO] running `Command { std: "docker" "inspect" "260a20dda251d244a8ecef7e7bbed191882ee7d5ecee0ed837b369aa23cee9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "260a20dda251d244a8ecef7e7bbed191882ee7d5ecee0ed837b369aa23cee9fe", kill_on_drop: false }`
[INFO] [stdout] 260a20dda251d244a8ecef7e7bbed191882ee7d5ecee0ed837b369aa23cee9fe