[INFO] updating cached repository rust-lang-nursery/mdBook
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rust-lang-nursery/mdBook
[INFO] [stderr]  * branch                HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-lang-nursery/mdBook" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/rust-lang-nursery/mdBook"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/rust-lang-nursery/mdBook'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-lang-nursery/mdBook" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/rust-lang-nursery/mdBook"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/rust-lang-nursery/mdBook'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a655d5d2419d314003c12047c41685f5de5d68ff
[INFO] sha for GitHub repo rust-lang-nursery/mdBook: a655d5d2419d314003c12047c41685f5de5d68ff
[INFO] validating manifest of rust-lang-nursery/mdBook on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rust-lang-nursery/mdBook on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rust-lang-nursery/mdBook
[INFO] finished frobbing rust-lang-nursery/mdBook
[INFO] frobbed toml for rust-lang-nursery/mdBook written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/rust-lang-nursery/mdBook/Cargo.toml
[INFO] started frobbing rust-lang-nursery/mdBook
[INFO] finished frobbing rust-lang-nursery/mdBook
[INFO] frobbed toml for rust-lang-nursery/mdBook written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/rust-lang-nursery/mdBook/Cargo.toml
[INFO] crate rust-lang-nursery/mdBook already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rust-lang-nursery/mdBook against try#75eff020d0923c035c2fe220db4a0465cd847048 for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-0/try#75eff020d0923c035c2fe220db4a0465cd847048:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/rust-lang-nursery/mdBook:/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=forbid" "-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" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 55749e3b95e87dad0d897277c12e026f357b960648eb687f803215c902bbe81d
[INFO] running `"docker" "start" "-a" "55749e3b95e87dad0d897277c12e026f357b960648eb687f803215c902bbe81d"`
[INFO] [stderr]     Checking strum v0.11.0
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking pulldown-cmark-to-cmark v1.1.0
[INFO] [stderr]     Checking mio v0.6.18
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling strum_macros v0.11.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking tempfile v3.0.8
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking ws v0.8.1
[INFO] [stderr]     Checking notify v4.0.12
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]    Compiling markup5ever v0.3.2
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]     Checking elasticlunr-rs v2.3.4
[INFO] [stderr]     Checking iron v0.6.0
[INFO] [stderr]     Checking mount v0.4.0
[INFO] [stderr]     Checking staticfile v0.5.0
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]     Checking html5ever v0.18.0
[INFO] [stderr]    Compiling toml-query_derive v0.9.0
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]     Checking select v0.4.2
[INFO] [stderr]     Checking toml-query v0.9.0
[INFO] [stderr]     Checking ammonia v2.1.1
[INFO] [stderr]     Checking mdbook v0.2.4-alpha.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 06s
[INFO] running `"docker" "inspect" "55749e3b95e87dad0d897277c12e026f357b960648eb687f803215c902bbe81d"`
[INFO] running `"docker" "rm" "-f" "55749e3b95e87dad0d897277c12e026f357b960648eb687f803215c902bbe81d"`
[INFO] [stdout] 55749e3b95e87dad0d897277c12e026f357b960648eb687f803215c902bbe81d