[INFO] crate mdbook-generate-summary 0.2.0 is already in cache
[INFO] extracting crate mdbook-generate-summary 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/mdbook-generate-summary/0.2.0
[INFO] extracting crate mdbook-generate-summary 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mdbook-generate-summary/0.2.0
[INFO] validating manifest of mdbook-generate-summary-0.2.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mdbook-generate-summary-0.2.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mdbook-generate-summary-0.2.0
[INFO] finished frobbing mdbook-generate-summary-0.2.0
[INFO] frobbed toml for mdbook-generate-summary-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mdbook-generate-summary/0.2.0/Cargo.toml
[INFO] started frobbing mdbook-generate-summary-0.2.0
[INFO] finished frobbing mdbook-generate-summary-0.2.0
[INFO] frobbed toml for mdbook-generate-summary-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mdbook-generate-summary/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mdbook-generate-summary-0.2.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mdbook-generate-summary/0.2.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 41d9f36828830e5284d17b1571bbcdaa0675be27249897b71e78f8e231972735
[INFO] running `"docker" "start" "-a" "41d9f36828830e5284d17b1571bbcdaa0675be27249897b71e78f8e231972735"`
[INFO] [stderr]    Compiling mdbook-generate-summary v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.60s
[INFO] running `"docker" "inspect" "41d9f36828830e5284d17b1571bbcdaa0675be27249897b71e78f8e231972735"`
[INFO] running `"docker" "rm" "-f" "41d9f36828830e5284d17b1571bbcdaa0675be27249897b71e78f8e231972735"`
[INFO] [stdout] 41d9f36828830e5284d17b1571bbcdaa0675be27249897b71e78f8e231972735
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mdbook-generate-summary/0.2.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 92ccfe54ba8197f11d07938e106250bc120ed0b2a85cc294950e74d32abe24cd
[INFO] running `"docker" "start" "-a" "92ccfe54ba8197f11d07938e106250bc120ed0b2a85cc294950e74d32abe24cd"`
[INFO] [stderr]    Compiling escargot v0.3.1
[INFO] [stderr]    Compiling predicates-core v1.0.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling normalize-line-endings v0.2.2
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling predicates-tree v1.0.0
[INFO] [stderr]    Compiling predicates v1.0.1
[INFO] [stderr]    Compiling assert_cmd v0.10.2
[INFO] [stderr]    Compiling mdbook-generate-summary v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:17:45
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn generates_summary_md() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.76s
[INFO] running `"docker" "inspect" "92ccfe54ba8197f11d07938e106250bc120ed0b2a85cc294950e74d32abe24cd"`
[INFO] running `"docker" "rm" "-f" "92ccfe54ba8197f11d07938e106250bc120ed0b2a85cc294950e74d32abe24cd"`
[INFO] [stdout] 92ccfe54ba8197f11d07938e106250bc120ed0b2a85cc294950e74d32abe24cd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mdbook-generate-summary/0.2.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 146b26c22efa5f83912cc39eabda87f04709a5812d7dc54ada9922df825ea724
[INFO] running `"docker" "start" "-a" "146b26c22efa5f83912cc39eabda87f04709a5812d7dc54ada9922df825ea724"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mdbook_generate_summary-e52e150fa22410b9
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test summary_entry::test::indentation_level_with_3_subdir ... ok
[INFO] [stdout] test summary_entry::test::indentation_level_with_2_subdir ... ok
[INFO] [stdout] test summary_entry::test::indentation_level_with_1_subdir ... ok
[INFO] [stdout] test summary_entry::test::summary_line_with_no_subdir ... ok
[INFO] [stdout] test test::find_content_finds_a_title ... ok
[INFO] [stdout] test test::find_content_returns_no_title_if_none_found ... ok
[INFO] [stdout] test summary_entry::test::ordered ... ok
[INFO] [stdout] test summary_entry::test::ordered_2 ... ok
[INFO] [stdout] test summary_entry::test::indentation_level_with_base_dir ... ok
[INFO] [stdout] test summary_entry::test::summary_line_with_1_subdir ... ok
[INFO] [stdout] test summary_entry::test::summary_line_with_1_subdir_readme ... ok
[INFO] [stdout] test summary_entry::test::indentation_level_with_base_dir_and_readme ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cli-0be5addc6f3c6506
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test generates_summary_md ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "146b26c22efa5f83912cc39eabda87f04709a5812d7dc54ada9922df825ea724"`
[INFO] running `"docker" "rm" "-f" "146b26c22efa5f83912cc39eabda87f04709a5812d7dc54ada9922df825ea724"`
[INFO] [stdout] 146b26c22efa5f83912cc39eabda87f04709a5812d7dc54ada9922df825ea724