[INFO] fetching crate cargo-unleash 1.0.0-alpha.10...
[INFO] testing cargo-unleash-1.0.0-alpha.10 against 1.47.0 for beta-1.48-1
[INFO] extracting crate cargo-unleash 1.0.0-alpha.10 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cargo-unleash 1.0.0-alpha.10 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-unleash 1.0.0-alpha.10
[INFO] finished tweaking crates.io crate cargo-unleash 1.0.0-alpha.10
[INFO] tweaked toml for crates.io crate cargo-unleash 1.0.0-alpha.10 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate cargo-unleash 1.0.0-alpha.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df5c3b472d967fabb99c3d497ea0a9fed1c601ef2ea481fdc95466297e015c14
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "df5c3b472d967fabb99c3d497ea0a9fed1c601ef2ea481fdc95466297e015c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df5c3b472d967fabb99c3d497ea0a9fed1c601ef2ea481fdc95466297e015c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df5c3b472d967fabb99c3d497ea0a9fed1c601ef2ea481fdc95466297e015c14", kill_on_drop: false }`
[INFO] [stdout] df5c3b472d967fabb99c3d497ea0a9fed1c601ef2ea481fdc95466297e015c14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 042909af5693ab346a255cacd1736569b284cbe82e3162f0a95e68515783e95b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "042909af5693ab346a255cacd1736569b284cbe82e3162f0a95e68515783e95b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling anyhow v1.0.27
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling humantime v2.0.0
[INFO] [stderr]    Compiling bytesize v1.0.0
[INFO] [stderr]    Compiling opener v0.4.1
[INFO] [stderr]    Compiling rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling shell-escape v0.1.4
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]    Compiling http v0.2.0
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling vte v0.3.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling bstr v0.2.12
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]    Compiling strip-ansi-escapes v0.1.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.8
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling bitmaps v2.0.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]    Compiling libssh2-sys v0.2.16
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling regex v1.3.5
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling sized-chunks v0.5.3
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling globset v0.4.5
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling flexi_logger v0.14.8
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling ignore v0.4.12
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling toml_edit v0.1.5
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling structopt-derive v0.4.5
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling pin-project v0.4.8
[INFO] [stderr]    Compiling git2 v0.11.0
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling structopt v0.3.12
[INFO] [stderr]    Compiling git2-curl v0.12.0
[INFO] [stderr]    Compiling h2 v0.2.2
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling hyper v0.13.3
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_ignored v0.1.1
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling cargo-platform v0.1.1
[INFO] [stderr]    Compiling rustfix v0.5.0
[INFO] [stderr]    Compiling crates-io v0.31.0
[INFO] [stderr]    Compiling reqwest v0.10.4
[INFO] [stderr]    Compiling cargo v0.43.1
[INFO] [stderr] error: could not compile `cargo`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cargo --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.43.1/src/cargo/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=0ba1cbd7af17e008 -C extra-filename=-0ba1cbd7af17e008 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-945dba3870e5d4c5.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-f8c92ea67a8ee8ca.rmeta --extern bytesize=/opt/rustwide/target/debug/deps/libbytesize-a854319dd017d7c1.rmeta --extern cargo_platform=/opt/rustwide/target/debug/deps/libcargo_platform-7b95b844e555fa8a.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-607809201c666935.rmeta --extern crates_io=/opt/rustwide/target/debug/deps/libcrates_io-d612172e1e85a6cf.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-5ef602b149509a13.rmeta --extern crypto_hash=/opt/rustwide/target/debug/deps/libcrypto_hash-b40510fe481685a5.rmeta --extern curl=/opt/rustwide/target/debug/deps/libcurl-bd1edc83678bbbb5.rmeta --extern curl_sys=/opt/rustwide/target/debug/deps/libcurl_sys-26c5ab2b2baf7625.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-a9faa77e352d2ba8.rmeta --extern filetime=/opt/rustwide/target/debug/deps/libfiletime-491d6a21ca1bd5ad.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-36f7cf0184403612.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-25856ce6296ddd80.rmeta --extern git2=/opt/rustwide/target/debug/deps/libgit2-7477ec47bdce2eb8.rmeta --extern git2_curl=/opt/rustwide/target/debug/deps/libgit2_curl-78b8908e6512730d.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-918b5d1fb8a81879.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-6704a6e0174e9e51.rmeta --extern home=/opt/rustwide/target/debug/deps/libhome-5095fb870a858d1c.rmeta --extern humantime=/opt/rustwide/target/debug/deps/libhumantime-be18499265fc2e8e.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-9a3a34d3d9d96e62.rmeta --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-eca81b2292988241.rmeta --extern jobserver=/opt/rustwide/target/debug/deps/libjobserver-7ca7761cae317db3.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-bf21cfb31a9e28ca.rmeta --extern lazycell=/opt/rustwide/target/debug/deps/liblazycell-26813a04d2adfc16.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-6b9043bf2da5b6bc.rmeta --extern libgit2_sys=/opt/rustwide/target/debug/deps/liblibgit2_sys-4c0130ae02322a67.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-e01c55323f033bb6.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-d49ac1e01d7c87e9.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-563e033476408643.rmeta --extern opener=/opt/rustwide/target/debug/deps/libopener-e200bbd43bd218d9.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-b8f70c4d24b687b1.rmeta --extern remove_dir_all=/opt/rustwide/target/debug/deps/libremove_dir_all-31a1d7036457029a.rmeta --extern rustc_workspace_hack=/opt/rustwide/target/debug/deps/librustc_workspace_hack-2f0239bced60108a.rmeta --extern rustfix=/opt/rustwide/target/debug/deps/librustfix-d9f23bd637ef12c5.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-55d9e4e23e414bb7.rmeta --extern semver=/opt/rustwide/target/debug/deps/libsemver-e2629161c10f3876.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0c48dd1a966146ec.rmeta --extern serde_ignored=/opt/rustwide/target/debug/deps/libserde_ignored-6df53b98e8f49a03.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-a588ab99e165255e.rmeta --extern shell_escape=/opt/rustwide/target/debug/deps/libshell_escape-3de6634256a2e4d1.rmeta --extern strip_ansi_escapes=/opt/rustwide/target/debug/deps/libstrip_ansi_escapes-6c1ecfc34b8cb53c.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-03eef9a7f03053b4.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-506e1f90cd14e503.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-77991fd1113c1c90.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-ade1978c9a99869d.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-e48abc2933969712.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-41bfe9783c8cbb17.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-cbb4f9c1da2f991c.rmeta --cap-lints allow --cap-lints=warn -L native=/opt/rustwide/target/debug/build/curl-sys-cfe5620e188ba988/out/build -L native=/opt/rustwide/target/debug/build/libnghttp2-sys-e68bdbdfadbb60e9/out/i/lib -L native=/usr/lib/x86_64-linux-gnu -L native=/opt/rustwide/target/debug/build/libgit2-sys-5e5d49841d9445cf/out/build -L native=/usr/lib/x86_64-linux-gnu -L native=/opt/rustwide/target/debug/build/libssh2-sys-2aa8b89c854aec33/out/build` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "042909af5693ab346a255cacd1736569b284cbe82e3162f0a95e68515783e95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "042909af5693ab346a255cacd1736569b284cbe82e3162f0a95e68515783e95b", kill_on_drop: false }`
[INFO] [stdout] 042909af5693ab346a255cacd1736569b284cbe82e3162f0a95e68515783e95b
