[INFO] fetching crate stubr-build 0.4.8...
[INFO] testing stubr-build-0.4.8 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate stubr-build 0.4.8 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate stubr-build 0.4.8 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stubr-build 0.4.8
[INFO] finished tweaking crates.io crate stubr-build 0.4.8
[INFO] tweaked toml for crates.io crate stubr-build 0.4.8 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 283a0b1c0bb2aaa7f5c02cb22ab1a1b80afb1797f01e2942d22157a250315b37
[INFO] running `Command { std: "docker" "start" "-a" "283a0b1c0bb2aaa7f5c02cb22ab1a1b80afb1797f01e2942d22157a250315b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "283a0b1c0bb2aaa7f5c02cb22ab1a1b80afb1797f01e2942d22157a250315b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "283a0b1c0bb2aaa7f5c02cb22ab1a1b80afb1797f01e2942d22157a250315b37", kill_on_drop: false }`
[INFO] [stdout] 283a0b1c0bb2aaa7f5c02cb22ab1a1b80afb1797f01e2942d22157a250315b37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d5598d456024b67a32d3cd2082df85bbcea52fb7748c4e50ebb2b675fc21e385
[INFO] running `Command { std: "docker" "start" "-a" "d5598d456024b67a32d3cd2082df85bbcea52fb7748c4e50ebb2b675fc21e385", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling shell-escape v0.1.5
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling opener v0.4.1
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling bytesize v1.1.0
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling vte v0.3.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling strip-ansi-escapes v0.1.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling tar v0.4.35
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.6+1.43.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.21
[INFO] [stderr]    Compiling curl-sys v0.4.45+curl-7.78.0
[INFO] [stderr]    Compiling libgit2-sys v0.12.21+1.1.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling cargo v0.54.0
[INFO] [stderr]    Compiling globset v0.4.8
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling ignore v0.4.18
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling cargo-util v0.1.1
[INFO] [stderr]    Compiling git2 v0.13.20
[INFO] [stderr]    Compiling git2-curl v0.14.1
[INFO] [stderr]    Compiling semver v0.10.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling cargo-platform v0.1.1
[INFO] [stderr]    Compiling serde_ignored v0.1.2
[INFO] [stderr]    Compiling rustfix v0.5.1
[INFO] [stderr]    Compiling crates-io v0.33.0
[INFO] [stderr]    Compiling stubr-build v0.4.8 (/opt/rustwide/workdir)
[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-0.54.0/src/cargo/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=c8f51700da52c9be -C extra-filename=-c8f51700da52c9be --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-e183bb2174e494e4.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-69ea8e88535eec5a.rmeta --extern bytesize=/opt/rustwide/target/debug/deps/libbytesize-a21eeea7638d82ad.rmeta --extern cargo_platform=/opt/rustwide/target/debug/deps/libcargo_platform-c674c2703eaa3c36.rmeta --extern cargo_util=/opt/rustwide/target/debug/deps/libcargo_util-420f560bb5ff6b3f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-718e13290cbac461.rmeta --extern crates_io=/opt/rustwide/target/debug/deps/libcrates_io-7f759376d0d07173.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-22e234bcff78aefc.rmeta --extern curl=/opt/rustwide/target/debug/deps/libcurl-df255c7c4fc214ff.rmeta --extern curl_sys=/opt/rustwide/target/debug/deps/libcurl_sys-7fdc5d74c809fc7c.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-ca53ca0715313d0d.rmeta --extern filetime=/opt/rustwide/target/debug/deps/libfiletime-42a60397da4acfd5.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-c3173f8e558a6b46.rmeta --extern git2=/opt/rustwide/target/debug/deps/libgit2-d69f3ea3aa9f28dc.rmeta --extern git2_curl=/opt/rustwide/target/debug/deps/libgit2_curl-f270c7c2b7543657.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-367c240206242d35.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-c9fd0ea4c3543a57.rmeta --extern home=/opt/rustwide/target/debug/deps/libhome-f0fe712025818389.rmeta --extern humantime=/opt/rustwide/target/debug/deps/libhumantime-2d575097e7169ff0.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-35b77cff76ac8cbc.rmeta --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-641f3ea31c649dd5.rmeta --extern jobserver=/opt/rustwide/target/debug/deps/libjobserver-50596f024596e2a0.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-f67718dd40129317.rmeta --extern lazycell=/opt/rustwide/target/debug/deps/liblazycell-415c7f8c579dbe87.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-333aa5b90e875ae0.rmeta --extern libgit2_sys=/opt/rustwide/target/debug/deps/liblibgit2_sys-7069bbbc1619070d.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-062ec20cca67060d.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-4b7e7f97fdf3b1c2.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-02aeb857270eb57b.rmeta --extern opener=/opt/rustwide/target/debug/deps/libopener-e9fb15ac8640ce50.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-98a88b5b53b82a03.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-b12671d5996357d8.rmeta --extern rustc_workspace_hack=/opt/rustwide/target/debug/deps/librustc_workspace_hack-e87ae39134e8c624.rmeta --extern rustfix=/opt/rustwide/target/debug/deps/librustfix-b9ee540621e4b302.rmeta --extern semver=/opt/rustwide/target/debug/deps/libsemver-39d8565632276d3f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8ebf94b7d0534667.rmeta --extern serde_ignored=/opt/rustwide/target/debug/deps/libserde_ignored-c9d0ad4b42d20ec9.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-e1b3082c6fc3b16d.rmeta --extern shell_escape=/opt/rustwide/target/debug/deps/libshell_escape-21bb666711049a9a.rmeta --extern strip_ansi_escapes=/opt/rustwide/target/debug/deps/libstrip_ansi_escapes-6f014dd01246451b.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-4a061424e4a8255e.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-17dedf9943b43b35.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-48569ba71e859b79.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-3f236c5bb9529326.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-58fa4f49044d3e0e.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-38987aa89d2b0d41.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-eb3918a50331e149.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-0820dafd1e10c370.rmeta --cap-lints allow --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/curl-sys-e008ebaebab70d8c/out/build -L native=/opt/rustwide/target/debug/build/libnghttp2-sys-84c208844cb35f8a/out/i/lib -L native=/opt/rustwide/target/debug/build/libgit2-sys-996ca0be89065bc3/out/build -L native=/opt/rustwide/target/debug/build/libssh2-sys-c41a6894aead5756/out/build` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "d5598d456024b67a32d3cd2082df85bbcea52fb7748c4e50ebb2b675fc21e385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5598d456024b67a32d3cd2082df85bbcea52fb7748c4e50ebb2b675fc21e385", kill_on_drop: false }`
[INFO] [stdout] d5598d456024b67a32d3cd2082df85bbcea52fb7748c4e50ebb2b675fc21e385