[INFO] updating cached repository eagletmt/fastladder-bookwalker
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/eagletmt/fastladder-bookwalker
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/eagletmt/fastladder-bookwalker" "work/ex/beta-1.38-1/sources/1.37.0/gh/eagletmt/fastladder-bookwalker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/eagletmt/fastladder-bookwalker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/eagletmt/fastladder-bookwalker" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eagletmt/fastladder-bookwalker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eagletmt/fastladder-bookwalker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 58f705ec21c44513aac905830b09a7d4627af0ae
[INFO] sha for GitHub repo eagletmt/fastladder-bookwalker: 58f705ec21c44513aac905830b09a7d4627af0ae
[INFO] validating manifest of eagletmt/fastladder-bookwalker 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 eagletmt/fastladder-bookwalker 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 eagletmt/fastladder-bookwalker
[INFO] finished frobbing eagletmt/fastladder-bookwalker
[INFO] frobbed toml for eagletmt/fastladder-bookwalker written to work/ex/beta-1.38-1/sources/1.37.0/gh/eagletmt/fastladder-bookwalker/Cargo.toml
[INFO] started frobbing eagletmt/fastladder-bookwalker
[INFO] finished frobbing eagletmt/fastladder-bookwalker
[INFO] frobbed toml for eagletmt/fastladder-bookwalker written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eagletmt/fastladder-bookwalker/Cargo.toml
[INFO] crate eagletmt/fastladder-bookwalker 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 eagletmt/fastladder-bookwalker 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/eagletmt/fastladder-bookwalker:/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] dbc86e5138daad70d950a53d78c3ff939332ef34eb8f0dd8765d98cdb0d57b52
[INFO] running `"docker" "start" "-a" "dbc86e5138daad70d950a53d78c3ff939332ef34eb8f0dd8765d98cdb0d57b52"`
[INFO] [stderr]    Compiling deque v0.3.2
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]    Compiling untrusted v0.5.0
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling serde v1.0.5
[INFO] [stderr]    Compiling utf-8 v0.6.0
[INFO] [stderr]    Compiling mime v0.2.4
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling clap v2.24.2
[INFO] [stderr]    Compiling hyper v0.10.10
[INFO] [stderr]    Compiling rayon-core v1.0.0
[INFO] [stderr]    Compiling string_cache_codegen v0.3.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling futf v0.1.3
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling html5ever v0.14.1
[INFO] [stderr]    Compiling tendril v0.2.4
[INFO] [stderr]    Compiling rayon v0.7.0
[INFO] [stderr]    Compiling string_cache v0.4.0
[INFO] [stderr]    Compiling html5ever-atoms v0.2.2
[INFO] [stderr]    Compiling ring v0.9.5
[INFO] [stderr]    Compiling webpki v0.12.1
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling rustls v0.8.0
[INFO] [stderr]    Compiling webpki-roots v0.10.0
[INFO] [stderr]    Compiling select v0.4.0
[INFO] [stderr]    Compiling hyper-rustls v0.6.0
[INFO] [stderr]    Compiling fastladder-bookwalker v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `"docker" "inspect" "dbc86e5138daad70d950a53d78c3ff939332ef34eb8f0dd8765d98cdb0d57b52"`
[INFO] running `"docker" "rm" "-f" "dbc86e5138daad70d950a53d78c3ff939332ef34eb8f0dd8765d98cdb0d57b52"`
[INFO] [stdout] dbc86e5138daad70d950a53d78c3ff939332ef34eb8f0dd8765d98cdb0d57b52
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/eagletmt/fastladder-bookwalker:/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] 07108b29d605a5b3957e793f35d3bd1f31685effa85901e0029cba2a6861a3a7
[INFO] running `"docker" "start" "-a" "07108b29d605a5b3957e793f35d3bd1f31685effa85901e0029cba2a6861a3a7"`
[INFO] [stderr]    Compiling fastladder-bookwalker v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "07108b29d605a5b3957e793f35d3bd1f31685effa85901e0029cba2a6861a3a7"`
[INFO] running `"docker" "rm" "-f" "07108b29d605a5b3957e793f35d3bd1f31685effa85901e0029cba2a6861a3a7"`
[INFO] [stdout] 07108b29d605a5b3957e793f35d3bd1f31685effa85901e0029cba2a6861a3a7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/eagletmt/fastladder-bookwalker:/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] 87ba04626f59ad8a8ed45e05731da87e2b614f7c33a24429a20b6e1da26a209e
[INFO] running `"docker" "start" "-a" "87ba04626f59ad8a8ed45e05731da87e2b614f7c33a24429a20b6e1da26a209e"`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fastladder_bookwalker-2cd95779edd7d3fb
[INFO] running `"docker" "inspect" "87ba04626f59ad8a8ed45e05731da87e2b614f7c33a24429a20b6e1da26a209e"`
[INFO] running `"docker" "rm" "-f" "87ba04626f59ad8a8ed45e05731da87e2b614f7c33a24429a20b6e1da26a209e"`
[INFO] [stdout] 87ba04626f59ad8a8ed45e05731da87e2b614f7c33a24429a20b6e1da26a209e