[INFO] updating cached repository yangxingwu/rust-book
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yangxingwu/rust-book
[INFO] [stderr]  * branch              HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yangxingwu/rust-book" "work/ex/beta-1.38-1/sources/1.37.0/gh/yangxingwu/rust-book"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yangxingwu/rust-book'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yangxingwu/rust-book" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yangxingwu/rust-book"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yangxingwu/rust-book'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b234222560ac6aa0fa2786b529c0a922677651b
[INFO] sha for GitHub repo yangxingwu/rust-book: 7b234222560ac6aa0fa2786b529c0a922677651b
[INFO] validating manifest of yangxingwu/rust-book 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 yangxingwu/rust-book 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 yangxingwu/rust-book
[INFO] finished frobbing yangxingwu/rust-book
[INFO] frobbed toml for yangxingwu/rust-book written to work/ex/beta-1.38-1/sources/1.37.0/gh/yangxingwu/rust-book/Cargo.toml
[INFO] started frobbing yangxingwu/rust-book
[INFO] finished frobbing yangxingwu/rust-book
[INFO] frobbed toml for yangxingwu/rust-book written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yangxingwu/rust-book/Cargo.toml
[INFO] crate yangxingwu/rust-book already has a lockfile, it will not be regenerated
[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 yangxingwu/rust-book 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yangxingwu/rust-book:/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] 8baa073fe994caf390ba66f19f7a11ad4d4b22eaa4c75d26e1d2ef1528fc4ec3
[INFO] running `"docker" "start" "-a" "8baa073fe994caf390ba66f19f7a11ad4d4b22eaa4c75d26e1d2ef1528fc4ec3"`
[INFO] [stderr]    Compiling lazy_static v0.2.10
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling rust-book v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]   --> tools/src/bin/lfp.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::io::{BufRead, Write};
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.73s
[INFO] running `"docker" "inspect" "8baa073fe994caf390ba66f19f7a11ad4d4b22eaa4c75d26e1d2ef1528fc4ec3"`
[INFO] running `"docker" "rm" "-f" "8baa073fe994caf390ba66f19f7a11ad4d4b22eaa4c75d26e1d2ef1528fc4ec3"`
[INFO] [stdout] 8baa073fe994caf390ba66f19f7a11ad4d4b22eaa4c75d26e1d2ef1528fc4ec3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yangxingwu/rust-book:/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] 112e594c8d51f4837516d9edfd6009d329bc5a4fc6fbdc5e9e1a33360de5eaa7
[INFO] running `"docker" "start" "-a" "112e594c8d51f4837516d9edfd6009d329bc5a4fc6fbdc5e9e1a33360de5eaa7"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-book v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]   --> tools/src/bin/lfp.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::io::{BufRead, Write};
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `"docker" "inspect" "112e594c8d51f4837516d9edfd6009d329bc5a4fc6fbdc5e9e1a33360de5eaa7"`
[INFO] running `"docker" "rm" "-f" "112e594c8d51f4837516d9edfd6009d329bc5a4fc6fbdc5e9e1a33360de5eaa7"`
[INFO] [stdout] 112e594c8d51f4837516d9edfd6009d329bc5a4fc6fbdc5e9e1a33360de5eaa7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yangxingwu/rust-book:/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] faada2b469a43338f20b69d5c56973ec5f8f0a888a7b9f1216a62707170709e6
[INFO] running `"docker" "start" "-a" "faada2b469a43338f20b69d5c56973ec5f8f0a888a7b9f1216a62707170709e6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/concat_chapters-85fa69de42f5d355
[INFO] [stderr]      Running /opt/crater/target/debug/deps/convert_quotes-d6006e075390bbb4
[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] [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] [stderr]      Running /opt/crater/target/debug/deps/lfp-4e0efdbebc04ca93
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::is_file_of_interest_returns_true_when_the_filename_has_the_md_extension ... ok
[INFO] [stdout] test tests::is_file_of_interest_returns_false_when_the_path_is_a_directory ... ok
[INFO] [stdout] test tests::is_line_of_interest_does_not_report_a_line_if_the_line_contains_a_file_url_which_is_directly_followed_by_the_project_path ... ok
[INFO] [stdout] test tests::is_file_of_interest_returns_false_when_the_filename_does_not_have_the_md_extension ... ok
[INFO] [stdout] test tests::lint_file_returns_a_vec_with_errs_when_lines_of_interest_are_found ... ok
[INFO] [stdout] test tests::is_line_of_interest_reports_a_line_if_the_line_contains_a_file_url_which_is_not_directly_followed_by_the_project_path ... ok
[INFO] [stdout] test tests::lint_file_returns_an_empty_vec_when_no_lines_of_interest_are_found ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/link2print-80687c4311d75e96
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test tests::ignores_short_quotes ... ok
[INFO] [stdout] test tests::ignores_optional_inline_title ... ok
[INFO] [stdout] test tests::ignores_links_in_quoted_sections ... ok
[INFO] [stdout] test tests::parses_inline_link ... ok
[INFO] [stdout] test tests::parses_implicit_link ... ok
[INFO] [stdout] test tests::ignores_links_in_quoted_sections_containing_newlines ... ok
[INFO] [stdout] test tests::parses_link_without_reference_as_reference_with_asterisks ... ignored
[INFO] [stdout] test tests::ignores_links_in_pre_sections ... ok
[INFO] [stdout] test tests::ignores_quotes_in_pre_sections ... ok
[INFO] [stdout] test tests::parses_adam_p_cheatsheet ... ok
[INFO] [stdout] test tests::ignores_links_in_pre_sections_while_still_handling_links ... ok
[INFO] [stdout] test tests::ignores_pre_sections_with_final_quote ... ok
[INFO] [stdout] test tests::parses_multiline_links ... ok
[INFO] [stdout] test tests::parses_name_with_punctuation ... ok
[INFO] [stdout] test tests::parses_reference_case_insensitively ... ok
[INFO] [stdout] test tests::parses_link_without_reference_as_reference ... ok
[INFO] [stdout] test tests::parses_link_as_reference_when_reference_is_empty ... ok
[INFO] [stdout] test tests::parses_reference ... ok
[INFO] [stdout] test tests::parses_reference_with_punctuation ... ok
[INFO] [stdout] test tests::parses_refs_with_three_space_indentation ... ok
[INFO] [stdout] test tests::parses_name_with_utf8 ... ok
[INFO] [stdout] test tests::parses_refs_with_one_space_indentation ... ok
[INFO] [stdout] test tests::parses_title_with_puctuation ... ok
[INFO] [stdout] test tests::parses_refs_with_two_space_indentation ... ok
[INFO] [stdout] test tests::rejects_refs_with_four_space_indentation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/remove_links-f1bd278ebe60afb3
[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] [stderr]      Running /opt/crater/target/debug/deps/remove_markup-c67dde20e732194b
[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" "faada2b469a43338f20b69d5c56973ec5f8f0a888a7b9f1216a62707170709e6"`
[INFO] running `"docker" "rm" "-f" "faada2b469a43338f20b69d5c56973ec5f8f0a888a7b9f1216a62707170709e6"`
[INFO] [stdout] faada2b469a43338f20b69d5c56973ec5f8f0a888a7b9f1216a62707170709e6