[INFO] crate cargo-external-doc 0.1.0 is already in cache
[INFO] extracting crate cargo-external-doc 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/cargo-external-doc/0.1.0
[INFO] extracting crate cargo-external-doc 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cargo-external-doc/0.1.0
[INFO] validating manifest of cargo-external-doc-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cargo-external-doc-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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/beta-1.37-6/sources/1.36.0/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/beta-1.37-6/sources/beta-2019-07-23/reg/cargo-external-doc/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cargo-external-doc-0.1.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cargo-external-doc/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] ea9d3f8ce040344e7f3afd9ecdbdf6393ab0eabce0c03204d4b28b81fca3386d
[INFO] running `"docker" "start" "-a" "ea9d3f8ce040344e7f3afd9ecdbdf6393ab0eabce0c03204d4b28b81fca3386d"`
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling handlebars v0.22.0
[INFO] [stderr]    Compiling serde_json v0.8.6
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 16.64s
[INFO] running `"docker" "inspect" "ea9d3f8ce040344e7f3afd9ecdbdf6393ab0eabce0c03204d4b28b81fca3386d"`
[INFO] running `"docker" "rm" "-f" "ea9d3f8ce040344e7f3afd9ecdbdf6393ab0eabce0c03204d4b28b81fca3386d"`
[INFO] [stdout] ea9d3f8ce040344e7f3afd9ecdbdf6393ab0eabce0c03204d4b28b81fca3386d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cargo-external-doc/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] d025189a8d875c529e2fefc1858976c2a62e8e8d1ec8245aef0ececbdfb140a2
[INFO] running `"docker" "start" "-a" "d025189a8d875c529e2fefc1858976c2a62e8e8d1ec8245aef0ececbdfb140a2"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "d025189a8d875c529e2fefc1858976c2a62e8e8d1ec8245aef0ececbdfb140a2"`
[INFO] running `"docker" "rm" "-f" "d025189a8d875c529e2fefc1858976c2a62e8e8d1ec8245aef0ececbdfb140a2"`
[INFO] [stdout] d025189a8d875c529e2fefc1858976c2a62e8e8d1ec8245aef0ececbdfb140a2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cargo-external-doc/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 587103da4d1b944bd5d1fd069d74d83f761914a527a6667d3f8d4d9b4e7cf222
[INFO] running `"docker" "start" "-a" "587103da4d1b944bd5d1fd069d74d83f761914a527a6667d3f8d4d9b4e7cf222"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cargo_external_doc-07c7e0555bcdf8c4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "587103da4d1b944bd5d1fd069d74d83f761914a527a6667d3f8d4d9b4e7cf222"`
[INFO] running `"docker" "rm" "-f" "587103da4d1b944bd5d1fd069d74d83f761914a527a6667d3f8d4d9b4e7cf222"`
[INFO] [stdout] 587103da4d1b944bd5d1fd069d74d83f761914a527a6667d3f8d4d9b4e7cf222