[INFO] updating cached repository https://github.com/Robzz/cargo-docset
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a120e80c5b41545e82e48843957c99df8b8d0b9d
[INFO] testing Robzz/cargo-docset against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobzz%2Fcargo-docset" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Robzz/cargo-docset on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Robzz/cargo-docset
[INFO] finished tweaking git repo https://github.com/Robzz/cargo-docset
[INFO] tweaked toml for git repo https://github.com/Robzz/cargo-docset written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Robzz/cargo-docset already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 9ee0ef677a95afae0ac271fdcedcf38dc270e4e70956d3e6303d1d3743bb4378
[INFO] running `"docker" "start" "-a" "9ee0ef677a95afae0ac271fdcedcf38dc270e4e70956d3e6303d1d3743bb4378"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.42
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling curl v0.4.23
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling opener v0.4.0
[INFO] [stderr]    Compiling home v0.3.4
[INFO] [stderr]    Compiling bytesize v1.0.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling shell-escape v0.1.4
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling filetime v0.2.7
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling jobserver v0.1.16
[INFO] [stderr]    Compiling sized-chunks v0.3.1
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling vte v0.3.3
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling strip-ansi-escapes v0.1.0
[INFO] [stderr]    Compiling globset v0.4.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rusqlite v0.20.0
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling curl-sys v0.4.21
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libgit2-sys v0.8.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling ignore v0.4.10
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling flate2 v1.0.11
[INFO] [stderr]    Compiling backtrace v0.3.37
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling snafu v0.5.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling url_serde v0.2.0
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling serde_ignored v0.0.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling im-rc v13.0.0
[INFO] [stderr]    Compiling rustfix v0.4.6
[INFO] [stderr]    Compiling crates-io v0.26.0
[INFO] [stderr]    Compiling git2 v0.9.2
[INFO] [stderr]    Compiling git2-curl v0.10.1
[INFO] [stderr]    Compiling cargo v0.38.0
[INFO] [stderr] error: could not compile `cargo`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name cargo /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.38.0/src/cargo/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=df851e1982da38dc -C extra-filename=-df851e1982da38dc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atty=/opt/rustwide/target/debug/deps/libatty-03b8a93222186773.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-fdd43a3ae319d8ce.rmeta --extern bytesize=/opt/rustwide/target/debug/deps/libbytesize-0149f81f75a6dd97.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-60f8f11ea9962d9b.rmeta --extern crates_io=/opt/rustwide/target/debug/deps/libcrates_io-1ee9ec8817c00441.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-48f0f3cfd36360d3.rmeta --extern crypto_hash=/opt/rustwide/target/debug/deps/libcrypto_hash-61e1b317e04722f1.rmeta --extern curl=/opt/rustwide/target/debug/deps/libcurl-a576d78fdf11a9af.rmeta --extern curl_sys=/opt/rustwide/target/debug/deps/libcurl_sys-4d058a4623a9b2e6.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-f53c7a21a418afb4.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-84f0e649a4ecd565.rmeta --extern filetime=/opt/rustwide/target/debug/deps/libfiletime-9ae9a2fb88b88932.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-8065a688f97e51b1.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-b750dc7fffc13c25.rmeta --extern git2=/opt/rustwide/target/debug/deps/libgit2-46d5bbfec6560755.rmeta --extern git2_curl=/opt/rustwide/target/debug/deps/libgit2_curl-3cd45e3e7e165057.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-5dc86a5a4b5848ff.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-ae2f110ebcc6e0d1.rmeta --extern home=/opt/rustwide/target/debug/deps/libhome-c66b560adc3be7c6.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-e9563afd72d7cd03.rmeta --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-71048151e355e5f9.rmeta --extern jobserver=/opt/rustwide/target/debug/deps/libjobserver-5d80eb8edb0e105b.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-955d54352a795d1f.rmeta --extern lazycell=/opt/rustwide/target/debug/deps/liblazycell-6c632e643bbac11a.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-9f7a5de25bd5699b.rmeta --extern libgit2_sys=/opt/rustwide/target/debug/deps/liblibgit2_sys-892def2290359364.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-962b2570ebb3eb48.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-046d4cf6cd2ea23b.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-1c28d23b93f67e46.rmeta --extern opener=/opt/rustwide/target/debug/deps/libopener-cd1eeb3e931e6b91.rmeta --extern rustc_workspace_hack=/opt/rustwide/target/debug/deps/librustc_workspace_hack-ede98908eeba3e87.rmeta --extern rustfix=/opt/rustwide/target/debug/deps/librustfix-48e3ed9f7c4bfd16.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-096bd708d57e7bc7.rmeta --extern semver=/opt/rustwide/target/debug/deps/libsemver-41a64e07e157d849.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f9a908ee312a9cfe.rmeta --extern serde_ignored=/opt/rustwide/target/debug/deps/libserde_ignored-4c2df7c3b5d45a06.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-ffc703cffe3aaaf8.rmeta --extern shell_escape=/opt/rustwide/target/debug/deps/libshell_escape-c4b63d1846d2d195.rmeta --extern strip_ansi_escapes=/opt/rustwide/target/debug/deps/libstrip_ansi_escapes-0c5016d959422435.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-004c0230cba7ebd4.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-56a9d3b1a6b7789c.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-5f8a7d5ca9fd9dbf.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-08048a4d1d64e539.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-b9c8816a90102d04.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-a72a174ec3a5c69b.rmeta --extern url_serde=/opt/rustwide/target/debug/deps/liburl_serde-58b4ee2926e69550.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-2a32a0f3695fa195.rmeta --cap-lints allow --cap-lints=warn -L native=/opt/rustwide/target/debug/build/curl-sys-9fc215b47fa3a75e/out/build -L native=/opt/rustwide/target/debug/build/libnghttp2-sys-2052f85f0bff8e41/out/i/lib -L native=/usr/lib/x86_64-linux-gnu -L native=/opt/rustwide/target/debug/build/backtrace-sys-61351e46909766aa/out -L native=/opt/rustwide/target/debug/build/miniz-sys-bd14b5e9441b7460/out -L native=/opt/rustwide/target/debug/build/libgit2-sys-a32f9ed7cfff2d72/out/build -L native=/opt/rustwide/target/debug/build/libssh2-sys-e8deaf1c759806c5/out/build` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "9ee0ef677a95afae0ac271fdcedcf38dc270e4e70956d3e6303d1d3743bb4378"`
[INFO] running `"docker" "rm" "-f" "9ee0ef677a95afae0ac271fdcedcf38dc270e4e70956d3e6303d1d3743bb4378"`
[INFO] [stdout] 9ee0ef677a95afae0ac271fdcedcf38dc270e4e70956d3e6303d1d3743bb4378