[INFO] fetching crate protobuf 2.24.1...
[INFO] checking protobuf-2.24.1 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate protobuf 2.24.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate protobuf 2.24.1 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protobuf 2.24.1
[INFO] finished tweaking crates.io crate protobuf 2.24.1
[INFO] tweaked toml for crates.io crate protobuf 2.24.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68e18e6d5bdfc6d1f3b6943bb55248cd6550bee71f26e2de0b5213b49b16debf
[INFO] running `Command { std: "docker" "start" "-a" "68e18e6d5bdfc6d1f3b6943bb55248cd6550bee71f26e2de0b5213b49b16debf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68e18e6d5bdfc6d1f3b6943bb55248cd6550bee71f26e2de0b5213b49b16debf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e18e6d5bdfc6d1f3b6943bb55248cd6550bee71f26e2de0b5213b49b16debf", kill_on_drop: false }`
[INFO] [stdout] 68e18e6d5bdfc6d1f3b6943bb55248cd6550bee71f26e2de0b5213b49b16debf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d0831807512d06324daa07900dcf783a9eca25e17353e2b2209ac6d010cd9d1
[INFO] running `Command { std: "docker" "start" "-a" "3d0831807512d06324daa07900dcf783a9eca25e17353e2b2209ac6d010cd9d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.24.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read src/../../protobuf-test-common/src/hex.rs: No such file or directory (os error 2)
[INFO] [stdout]   --> src/lib.rs:76:1
[INFO] [stdout]    |
[INFO] [stdout] 76 | mod hex;
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `protobuf`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/coded_output_stream.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |             &mut self.buffer[self.position..self.position + bytes.len()].copy_from_slice(bytes);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buf_read_iter.rs:333:9
[INFO] [stdout]     |
[INFO] [stdout] 333 |         &mut buf[..len].copy_from_slice(&rem[..len]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3d0831807512d06324daa07900dcf783a9eca25e17353e2b2209ac6d010cd9d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d0831807512d06324daa07900dcf783a9eca25e17353e2b2209ac6d010cd9d1", kill_on_drop: false }`
[INFO] [stdout] 3d0831807512d06324daa07900dcf783a9eca25e17353e2b2209ac6d010cd9d1