[INFO] updating cached repository younata/mdbook-api
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/younata/mdbook-api
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/younata/mdbook-api" "work/ex/beta-1.38-1/sources/1.37.0/gh/younata/mdbook-api"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/younata/mdbook-api'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/younata/mdbook-api" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/younata/mdbook-api"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/younata/mdbook-api'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6d7d5e765cf913beb5de9e432334a47aba3c5ca
[INFO] sha for GitHub repo younata/mdbook-api: c6d7d5e765cf913beb5de9e432334a47aba3c5ca
[INFO] validating manifest of younata/mdbook-api 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 younata/mdbook-api 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 younata/mdbook-api
[INFO] finished frobbing younata/mdbook-api
[INFO] frobbed toml for younata/mdbook-api written to work/ex/beta-1.38-1/sources/1.37.0/gh/younata/mdbook-api/Cargo.toml
[INFO] started frobbing younata/mdbook-api
[INFO] finished frobbing younata/mdbook-api
[INFO] frobbed toml for younata/mdbook-api written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/younata/mdbook-api/Cargo.toml
[INFO] crate younata/mdbook-api 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 younata/mdbook-api against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/younata/mdbook-api:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e35fe4071f94d66931635dc21a9c33af8df648b424af80736997198d469385d4
[INFO] running `"docker" "start" "-a" "e35fe4071f94d66931635dc21a9c33af8df648b424af80736997198d469385d4"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling regex v1.1.3
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling sequence_trie v0.3.6
[INFO] [stderr]    Compiling either v1.5.1
[INFO] [stderr]    Compiling strum v0.11.0
[INFO] [stderr]    Compiling is-match v0.1.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling open v1.2.2
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling pest v2.1.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.4
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling aho-corasick v0.7.1
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling hyper v0.10.15
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling notify v4.0.10
[INFO] [stderr]    Compiling ws v0.7.9
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling iron v0.6.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling mount v0.4.0
[INFO] [stderr]    Compiling staticfile v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling strum_macros v0.11.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling handlebars v1.1.0
[INFO] [stderr]    Compiling elasticlunr-rs v2.3.4
[INFO] [stderr]    Compiling toml-query v0.7.0
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]    Compiling ammonia v1.2.0
[INFO] [stderr]    Compiling mdbook v0.2.3
[INFO] [stderr]    Compiling mdbook-api v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 15s
[INFO] running `"docker" "inspect" "e35fe4071f94d66931635dc21a9c33af8df648b424af80736997198d469385d4"`
[INFO] running `"docker" "rm" "-f" "e35fe4071f94d66931635dc21a9c33af8df648b424af80736997198d469385d4"`
[INFO] [stdout] e35fe4071f94d66931635dc21a9c33af8df648b424af80736997198d469385d4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/younata/mdbook-api:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0cf83b787cdf39cd9b21fdb4761d753996e7819aadc04235c5355e14939b13c5
[INFO] running `"docker" "start" "-a" "0cf83b787cdf39cd9b21fdb4761d753996e7819aadc04235c5355e14939b13c5"`
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling mdbook-api v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]   --> tests/cli.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | use serde::{Serialize, Deserialize};
[INFO] [stderr]    |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.36s
[INFO] running `"docker" "inspect" "0cf83b787cdf39cd9b21fdb4761d753996e7819aadc04235c5355e14939b13c5"`
[INFO] running `"docker" "rm" "-f" "0cf83b787cdf39cd9b21fdb4761d753996e7819aadc04235c5355e14939b13c5"`
[INFO] [stdout] 0cf83b787cdf39cd9b21fdb4761d753996e7819aadc04235c5355e14939b13c5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/younata/mdbook-api:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 4931ac7155577763dff02245e542b2da4ec7655cbdb24b6cdf94b789c2f92971
[INFO] running `"docker" "start" "-a" "4931ac7155577763dff02245e542b2da4ec7655cbdb24b6cdf94b789c2f92971"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mdbook_api-796098fbbbb01039
[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/mdbook_api-fc872fd6627a4bc2
[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/cli-e4311f71277e08a4
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test book_json ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mdbook-api
[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" "4931ac7155577763dff02245e542b2da4ec7655cbdb24b6cdf94b789c2f92971"`
[INFO] running `"docker" "rm" "-f" "4931ac7155577763dff02245e542b2da4ec7655cbdb24b6cdf94b789c2f92971"`
[INFO] [stdout] 4931ac7155577763dff02245e542b2da4ec7655cbdb24b6cdf94b789c2f92971