[INFO] fetching crate rust-playground-top-crates 0.1.0...
[INFO] testing rust-playground-top-crates-0.1.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate rust-playground-top-crates 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rust-playground-top-crates 0.1.0 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 rust-playground-top-crates 0.1.0
[INFO] finished tweaking crates.io crate rust-playground-top-crates 0.1.0
[INFO] tweaked toml for crates.io crate rust-playground-top-crates 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate rust-playground-top-crates 0.1.0 already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] e78dd27d6856b93cdebcef2ca437dc79828f6cb9a2ca4ecab7310e1de56a4664
[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" "e78dd27d6856b93cdebcef2ca437dc79828f6cb9a2ca4ecab7310e1de56a4664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e78dd27d6856b93cdebcef2ca437dc79828f6cb9a2ca4ecab7310e1de56a4664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78dd27d6856b93cdebcef2ca437dc79828f6cb9a2ca4ecab7310e1de56a4664", kill_on_drop: false }`
[INFO] [stdout] e78dd27d6856b93cdebcef2ca437dc79828f6cb9a2ca4ecab7310e1de56a4664
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] aea06b30468db691dc4d7a84b44be657a8aa5d8f4d20254c6172aad8abe59837
[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" "aea06b30468db691dc4d7a84b44be657a8aa5d8f4d20254c6172aad8abe59837", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling shell-escape v0.1.5
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling bytesize v1.0.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling strip-ansi-escapes v0.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling tar v0.4.35
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[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 curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.21
[INFO] [stderr]    Compiling libgit2-sys v0.12.21+1.1.0
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling globset v0.4.8
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling ignore v0.4.18
[INFO] [stderr]    Compiling cargo v0.54.0
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling cargo-util v0.1.0
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling hyper v0.14.9
[INFO] [stderr]    Compiling git2 v0.13.20
[INFO] [stderr]    Compiling git2-curl v0.14.1
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling cargo-platform v0.1.1
[INFO] [stderr]    Compiling serde_ignored v0.1.2
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling semver v0.10.0
[INFO] [stderr]    Compiling reqwest v0.11.4
[INFO] [stderr]    Compiling crates-io v0.33.0
[INFO] [stderr]    Compiling rustfix v0.5.1
[INFO] [stderr]    Compiling rust-playground-top-crates v0.1.0 (/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=e709000690713e6a -C extra-filename=-e709000690713e6a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-8aac79b2f754f7a1.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-d387790ef22bcda0.rmeta --extern bytesize=/opt/rustwide/target/debug/deps/libbytesize-fa0e8d83c45127fb.rmeta --extern cargo_platform=/opt/rustwide/target/debug/deps/libcargo_platform-0382d5a1685c0925.rmeta --extern cargo_util=/opt/rustwide/target/debug/deps/libcargo_util-e9a980b923e19f90.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-eade02e53dcdf501.rmeta --extern crates_io=/opt/rustwide/target/debug/deps/libcrates_io-348cc2ea80a40fc3.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-22e234bcff78aefc.rmeta --extern curl=/opt/rustwide/target/debug/deps/libcurl-478b66558a0307aa.rmeta --extern curl_sys=/opt/rustwide/target/debug/deps/libcurl_sys-23cc6604c3d3bae0.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-dcceacb3a90a925b.rmeta --extern filetime=/opt/rustwide/target/debug/deps/libfiletime-b363e34dec0ae98c.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a4c2c50b689aca96.rmeta --extern git2=/opt/rustwide/target/debug/deps/libgit2-117fd9339275bbad.rmeta --extern git2_curl=/opt/rustwide/target/debug/deps/libgit2_curl-5aa4c9493e8a2970.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-a94dee17037b62c3.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-ed8088a3e949cfa7.rmeta --extern libgit2_sys=/opt/rustwide/target/debug/deps/liblibgit2_sys-5715b0a2a1e168bd.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-50f391c427ddcf98.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-9a32fc8f9a9bfbe4.rmeta --extern rustc_workspace_hack=/opt/rustwide/target/debug/deps/librustc_workspace_hack-e87ae39134e8c624.rmeta --extern rustfix=/opt/rustwide/target/debug/deps/librustfix-6f23e58413f063e3.rmeta --extern semver=/opt/rustwide/target/debug/deps/libsemver-867936f77a75dd5e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-a2d4a17cdfe48e3b.rmeta --extern serde_ignored=/opt/rustwide/target/debug/deps/libserde_ignored-bf26150affbe58d9.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-db40053c61309dbc.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-83e4b5e6f7891aac.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-bddbe9d8760a4ad4.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-48569ba71e859b79.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-c3158f8a41201225.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-e530539c5a289047.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-de154a57fa82fe97/out/build -L native=/opt/rustwide/target/debug/build/libnghttp2-sys-0f231e18f4bec190/out/i/lib -L native=/opt/rustwide/target/debug/build/libgit2-sys-c06fe9c029afcd49/out/build -L native=/opt/rustwide/target/debug/build/libssh2-sys-7f23052bb6d32f8a/out/build` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "aea06b30468db691dc4d7a84b44be657a8aa5d8f4d20254c6172aad8abe59837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea06b30468db691dc4d7a84b44be657a8aa5d8f4d20254c6172aad8abe59837", kill_on_drop: false }`
[INFO] [stdout] aea06b30468db691dc4d7a84b44be657a8aa5d8f4d20254c6172aad8abe59837