[INFO] crate cargo-external-doc 0.1.0 is already in cache
[INFO] extracting crate cargo-external-doc 0.1.0 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/cargo-external-doc/0.1.0
[INFO] extracting crate cargo-external-doc 0.1.0 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/cargo-external-doc/0.1.0
[INFO] validating manifest of cargo-external-doc-0.1.0 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cargo-external-doc-0.1.0 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cargo-external-doc-0.1.0
[INFO] finished frobbing cargo-external-doc-0.1.0
[INFO] frobbed toml for cargo-external-doc-0.1.0 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/cargo-external-doc/0.1.0/Cargo.toml
[INFO] started frobbing cargo-external-doc-0.1.0
[INFO] finished frobbing cargo-external-doc-0.1.0
[INFO] frobbed toml for cargo-external-doc-0.1.0 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/cargo-external-doc/0.1.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking cargo-external-doc-0.1.0 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-1/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/cargo-external-doc/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bd50557e5abef5ee94d63c3ba44bda90ae1b07bb516246f7fbd4a826588cd47f
[INFO] running `"docker" "start" "-a" "bd50557e5abef5ee94d63c3ba44bda90ae1b07bb516246f7fbd4a826588cd47f"`
[INFO] [stderr]     Checking cargo-external-doc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let result: String = String::from_utf8(stdout).expect("cargo command failed");
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test_result`
[INFO] [stderr]   --> src/main.rs:78:17
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let test_result: String = String::from_utf8(test_stdout)
[INFO] [stderr]    |                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_test_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `doc_result`
[INFO] [stderr]    --> src/main.rs:103:17
[INFO] [stderr]     |
[INFO] [stderr] 103 |             let doc_result: String = String::from_utf8(doc_stdout).expect("rustdoc command failed");
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_doc_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let result: String = String::from_utf8(stdout).expect("cargo command failed");
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test_result`
[INFO] [stderr]   --> src/main.rs:78:17
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let test_result: String = String::from_utf8(test_stdout)
[INFO] [stderr]    |                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_test_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `doc_result`
[INFO] [stderr]    --> src/main.rs:103:17
[INFO] [stderr]     |
[INFO] [stderr] 103 |             let doc_result: String = String::from_utf8(doc_stdout).expect("rustdoc command failed");
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_doc_result`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "bd50557e5abef5ee94d63c3ba44bda90ae1b07bb516246f7fbd4a826588cd47f"`
[INFO] running `"docker" "rm" "-f" "bd50557e5abef5ee94d63c3ba44bda90ae1b07bb516246f7fbd4a826588cd47f"`
[INFO] [stdout] bd50557e5abef5ee94d63c3ba44bda90ae1b07bb516246f7fbd4a826588cd47f