[INFO] fetching crate big-hash 0.2.0...
[INFO] checking big-hash-0.2.0 against try#590af02d982816cfb2e4e43f8c54065e816581ce for pr-111505
[INFO] extracting crate big-hash 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate big-hash 0.2.0 on toolchain 590af02d982816cfb2e4e43f8c54065e816581ce
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+590af02d982816cfb2e4e43f8c54065e816581ce" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate big-hash 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate big-hash 0.2.0
[INFO] tweaked toml for crates.io crate big-hash 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate big-hash 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+590af02d982816cfb2e4e43f8c54065e816581ce" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+590af02d982816cfb2e4e43f8c54065e816581ce" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b6cb511c9a3611ba9e161c35475977e9941555c0991dce1645b756c3597d937
[INFO] running `Command { std: "docker" "start" "-a" "9b6cb511c9a3611ba9e161c35475977e9941555c0991dce1645b756c3597d937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b6cb511c9a3611ba9e161c35475977e9941555c0991dce1645b756c3597d937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6cb511c9a3611ba9e161c35475977e9941555c0991dce1645b756c3597d937", kill_on_drop: false }`
[INFO] [stdout] 9b6cb511c9a3611ba9e161c35475977e9941555c0991dce1645b756c3597d937
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+590af02d982816cfb2e4e43f8c54065e816581ce" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ae2a147cf1c85f5d7a1c233e8dc85ca0559bf2eeb0d30d81b0c8ebe36ac4c42
[INFO] running `Command { std: "docker" "start" "-a" "4ae2a147cf1c85f5d7a1c233e8dc85ca0559bf2eeb0d30d81b0c8ebe36ac4c42", kill_on_drop: false }`
[INFO] [stderr]     Checking hmac-sha256 v0.1.2
[INFO] [stderr]     Checking hmac-sha512 v0.1.6
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking big-hash v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown `doc` attribute `opaque`
[INFO] [stdout]   --> src/lib.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[doc(opaque)]
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `opaque`
[INFO] [stdout]   --> src/lib.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[doc(opaque)]
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `opaque`
[INFO] [stdout]   --> src/lib.rs:60:7
[INFO] [stdout]    |
[INFO] [stdout] 60 | #[doc(opaque)]
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `big-hash` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: unknown `doc` attribute `opaque`
[INFO] [stdout]   --> src/lib.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[doc(opaque)]
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `opaque`
[INFO] [stdout]   --> src/lib.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[doc(opaque)]
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `opaque`
[INFO] [stdout]   --> src/lib.rs:60:7
[INFO] [stdout]    |
[INFO] [stdout] 60 | #[doc(opaque)]
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `big-hash` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "4ae2a147cf1c85f5d7a1c233e8dc85ca0559bf2eeb0d30d81b0c8ebe36ac4c42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae2a147cf1c85f5d7a1c233e8dc85ca0559bf2eeb0d30d81b0c8ebe36ac4c42", kill_on_drop: false }`
[INFO] [stdout] 4ae2a147cf1c85f5d7a1c233e8dc85ca0559bf2eeb0d30d81b0c8ebe36ac4c42