[INFO] crate semverver 0.1.41 is already in cache
[INFO] testing semverver-0.1.41 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate semverver 0.1.41 into work/builds/worker-11/source
[INFO] validating manifest of crates.io crate semverver 0.1.41 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 crates.io crate semverver 0.1.41
[INFO] finished tweaking crates.io crate semverver 0.1.41
[INFO] tweaked toml for crates.io crate semverver 0.1.41 written to work/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate semverver 0.1.41 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/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] a1aecf89d7d0d01287517549a577c5c673c7e8d9eb9c32eb1538191477ad37a2
[INFO] running `"docker" "start" "-a" "a1aecf89d7d0d01287517549a577c5c673c7e8d9eb9c32eb1538191477ad37a2"`
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling opener v0.4.0
[INFO] [stderr]    Compiling semverver v0.1.41 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling home v0.3.4
[INFO] [stderr]    Compiling rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling shell-escape v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.20
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling jobserver v0.1.16
[INFO] [stderr]    Compiling bstr v0.2.7
[INFO] [stderr]    Compiling sized-chunks v0.1.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling backtrace v0.3.35
[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 toml v0.5.3
[INFO] [stderr]    Compiling url_serde v0.2.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling globset v0.4.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling flate2 v1.0.11
[INFO] [stderr]    Compiling ignore v0.4.10
[INFO] [stderr]    Compiling im-rc v12.3.4
[INFO] [stderr]    Compiling rustfix v0.4.6
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling crates-io v0.25.0
[INFO] [stderr]    Compiling crates-io v0.24.0
[INFO] [stderr]    Compiling git2 v0.8.0
[INFO] [stderr]    Compiling git2-curl v0.9.0
[INFO] [stderr]    Compiling cargo v0.37.0
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rustc_diagnostic_macros)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rustc_diagnostic_macros)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(rustc_private)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `semverver`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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-0.37.0/src/cargo/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=6d124bda7ad1ed1e -C extra-filename=-6d124bda7ad1ed1e --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-3645e066ad54ce62.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-c0855a46a7221c4f.rmeta --extern crypto_hash=/opt/rustwide/target/debug/deps/libcrypto_hash-ea81ed9c7f72ad77.rmeta --extern curl=/opt/rustwide/target/debug/deps/libcurl-1b98ce8a84a7db0f.rmeta --extern curl_sys=/opt/rustwide/target/debug/deps/libcurl_sys-cad51a4a132c6057.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-7841e772fe27f1d5.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-3da6bdf4606e8a23.rmeta --extern filetime=/opt/rustwide/target/debug/deps/libfiletime-9ae9a2fb88b88932.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-73ec35639ebf68e3.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-b750dc7fffc13c25.rmeta --extern git2=/opt/rustwide/target/debug/deps/libgit2-c336a97b3b7ae8f7.rmeta --extern git2_curl=/opt/rustwide/target/debug/deps/libgit2_curl-a97fa62e821c59fc.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-45ad92f2ffe51b9b.rmeta --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-ee525e941a14f72c.rmeta --extern jobserver=/opt/rustwide/target/debug/deps/libjobserver-5d80eb8edb0e105b.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0bb2f2b904eb618d.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-2760c2d62e838aeb.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-6ed4d9b9a4f9dc83.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-096bd708d57e7bc7.rmeta --extern semver=/opt/rustwide/target/debug/deps/libsemver-fba7602b06cc4053.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-627190b0082ea113.rmeta --extern serde_ignored=/opt/rustwide/target/debug/deps/libserde_ignored-dbe898ad61bd2746.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-0c0a246b638dfb59.rmeta --extern shell_escape=/opt/rustwide/target/debug/deps/libshell_escape-c4b63d1846d2d195.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-004c0230cba7ebd4.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-e7bece46dea865a1.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-5f8a7d5ca9fd9dbf.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2d5951cc9db46021.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-44a850b74bee0c6b.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-b988121145d73554/out/build -L native=/opt/rustwide/target/debug/build/libnghttp2-sys-4ea838c84218031e/out/i/lib -L native=/usr/lib/x86_64-linux-gnu -L native=/opt/rustwide/target/debug/build/backtrace-sys-18c5be351582dcbb/out -L native=/opt/rustwide/target/debug/build/miniz-sys-e4c1048a8fda8708/out -L native=/opt/rustwide/target/debug/build/libgit2-sys-9f24761be84eba02/out/build -L native=/opt/rustwide/target/debug/build/libssh2-sys-faac21aca1484efb/out/build` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "a1aecf89d7d0d01287517549a577c5c673c7e8d9eb9c32eb1538191477ad37a2"`
[INFO] running `"docker" "rm" "-f" "a1aecf89d7d0d01287517549a577c5c673c7e8d9eb9c32eb1538191477ad37a2"`
[INFO] [stdout] a1aecf89d7d0d01287517549a577c5c673c7e8d9eb9c32eb1538191477ad37a2