[INFO] crate cargo-docset 0.1.2 is already in cache
[INFO] testing cargo-docset-0.1.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate cargo-docset 0.1.2 into work/builds/worker-5/source
[INFO] validating manifest of crates.io crate cargo-docset 0.1.2 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cargo-docset 0.1.2
[INFO] finished tweaking crates.io crate cargo-docset 0.1.2
[INFO] tweaked toml for crates.io crate cargo-docset 0.1.2 written to work/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate cargo-docset 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 75fc0f3fcbce8e05a39cb4e3e3b6c17a1a57675685cbda906f0213d4f879d672
[INFO] running `"docker" "start" "-a" "75fc0f3fcbce8e05a39cb4e3e3b6c17a1a57675685cbda906f0213d4f879d672"`
[INFO] [stderr]    Compiling curl v0.4.23
[INFO] [stderr]    Compiling opener v0.4.0
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling libgit2-sys v0.8.2
[INFO] [stderr]    Compiling curl-sys v0.4.21
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling vte v0.3.3
[INFO] [stderr]    Compiling jobserver v0.1.16
[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 derive_more v0.15.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling strip-ansi-escapes v0.1.0
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling rusqlite v0.20.0
[INFO] [stderr]    Compiling flate2 v1.0.11
[INFO] [stderr]    Compiling backtrace v0.3.37
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling snafu v0.5.0
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling serde_ignored v0.0.4
[INFO] [stderr]    Compiling url_serde v0.2.0
[INFO] [stderr]    Compiling toml v0.5.3
[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=80eb68f79fd067a8 -C extra-filename=-80eb68f79fd067a8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atty=/opt/rustwide/target/debug/deps/libatty-aeb8402cda341d72.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-f584045056e081f3.rmeta --extern bytesize=/opt/rustwide/target/debug/deps/libbytesize-0fb8a70cca18fcbb.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-1d28039db1852cce.rmeta --extern crates_io=/opt/rustwide/target/debug/deps/libcrates_io-ef54091ece66a151.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-84ad309430390d83.rmeta --extern crypto_hash=/opt/rustwide/target/debug/deps/libcrypto_hash-50aa057096910be8.rmeta --extern curl=/opt/rustwide/target/debug/deps/libcurl-0c5fad6fe68ec4b2.rmeta --extern curl_sys=/opt/rustwide/target/debug/deps/libcurl_sys-b6e265556a758bdf.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-eed17d9f1c77bc88.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-106b14ba4b4364ff.rmeta --extern filetime=/opt/rustwide/target/debug/deps/libfiletime-73bc13db69388fd6.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-bd2f39ba0b2675c6.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-77bb0f77749d9c8e.rmeta --extern git2=/opt/rustwide/target/debug/deps/libgit2-93138c0cd3330ac3.rmeta --extern git2_curl=/opt/rustwide/target/debug/deps/libgit2_curl-b9a1ce77a33f9f58.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-657487874406c7e8.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-1dafeb224c42a78f.rmeta --extern home=/opt/rustwide/target/debug/deps/libhome-f5b357d7e6922715.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-22c7bcbf1cb27eda.rmeta --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-73a0cdcd3fd3f669.rmeta --extern jobserver=/opt/rustwide/target/debug/deps/libjobserver-e8f8bfe1be634ad2.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-83cafc2ae303332c.rmeta --extern lazycell=/opt/rustwide/target/debug/deps/liblazycell-85bf9c74b6cfa43c.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-a3b13f6b27abcc70.rmeta --extern libgit2_sys=/opt/rustwide/target/debug/deps/liblibgit2_sys-257f09630fe189fc.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-908da68745edcb99.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-07c655ccb8662d4a.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-1a9b896f537e17c6.rmeta --extern opener=/opt/rustwide/target/debug/deps/libopener-cd9098f181d33083.rmeta --extern rustc_workspace_hack=/opt/rustwide/target/debug/deps/librustc_workspace_hack-072fc1b311632250.rmeta --extern rustfix=/opt/rustwide/target/debug/deps/librustfix-9227554334fd2615.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-7af609ac8eb5f9ee.rmeta --extern semver=/opt/rustwide/target/debug/deps/libsemver-c57d8e61d41c14f8.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5aea7c767fb7d257.rmeta --extern serde_ignored=/opt/rustwide/target/debug/deps/libserde_ignored-beebced49c5b2d53.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-592da2e75b1cedad.rmeta --extern shell_escape=/opt/rustwide/target/debug/deps/libshell_escape-d2d637cdd097564f.rmeta --extern strip_ansi_escapes=/opt/rustwide/target/debug/deps/libstrip_ansi_escapes-2d7c0faf2785e48c.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-f9d3dada0a0478d4.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-43e3c6576fbe2380.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-f54b97b28a819b63.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-23034be20b1c01b7.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-019a22cacfcfb093.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-1b0b9479fbeae824.rmeta --extern url_serde=/opt/rustwide/target/debug/deps/liburl_serde-405ad2cb2968ae09.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-b9c5419fe288b67c.rmeta --cap-lints allow --cap-lints=warn -L native=/opt/rustwide/target/debug/build/curl-sys-80cf0943fc26f015/out/build -L native=/opt/rustwide/target/debug/build/libnghttp2-sys-87e79c5bca933e5d/out/i/lib -L native=/usr/lib/x86_64-linux-gnu -L native=/opt/rustwide/target/debug/build/backtrace-sys-7f2d8c16cbd106b3/out -L native=/opt/rustwide/target/debug/build/miniz-sys-5cda294b3ac72fa9/out -L native=/opt/rustwide/target/debug/build/libgit2-sys-c8d2660c8c2a94c9/out/build -L native=/opt/rustwide/target/debug/build/libssh2-sys-1146706b0a359abf/out/build` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "75fc0f3fcbce8e05a39cb4e3e3b6c17a1a57675685cbda906f0213d4f879d672"`
[INFO] running `"docker" "rm" "-f" "75fc0f3fcbce8e05a39cb4e3e3b6c17a1a57675685cbda906f0213d4f879d672"`
[INFO] [stdout] 75fc0f3fcbce8e05a39cb4e3e3b6c17a1a57675685cbda906f0213d4f879d672