[INFO] fetching crate pact_matching 0.11.1...
[INFO] checking pact_matching-0.11.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate pact_matching 0.11.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate pact_matching 0.11.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pact_matching 0.11.1
[INFO] finished tweaking crates.io crate pact_matching 0.11.1
[INFO] tweaked toml for crates.io crate pact_matching 0.11.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ntest_test_cases v0.7.3
[INFO] [stderr]   Downloaded ntest_proc_macro_helper v0.7.3
[INFO] [stderr]   Downloaded ntest_timeout v0.7.3
[INFO] [stderr]   Downloaded ntest v0.7.3
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db3ec72cd468e05b0d52dd0e64b5bfda7ed7fff28e8756e07648437010ca7068
[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" "db3ec72cd468e05b0d52dd0e64b5bfda7ed7fff28e8756e07648437010ca7068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db3ec72cd468e05b0d52dd0e64b5bfda7ed7fff28e8756e07648437010ca7068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3ec72cd468e05b0d52dd0e64b5bfda7ed7fff28e8756e07648437010ca7068", kill_on_drop: false }`
[INFO] [stdout] db3ec72cd468e05b0d52dd0e64b5bfda7ed7fff28e8756e07648437010ca7068
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15c5e3468c2b304a9458e63ce3afb71889dd0d1d6d21c3c3472ab8d4ce390638
[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" "15c5e3468c2b304a9458e63ce3afb71889dd0d1d6d21c3c3472ab8d4ce390638", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling anyhow v1.0.48
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling ntest_proc_macro_helper v0.7.3
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling prost-build v0.8.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking rand_regex v0.15.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking chrono-tz v0.5.3
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling rstest v0.10.0
[INFO] [stderr]     Checking hamcrest2 v0.3.0
[INFO] [stderr]     Checking sysinfo v0.20.5
[INFO] [stderr]     Checking rustls-native-certs v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling prost-derive v0.8.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling ntest_test_cases v0.7.3
[INFO] [stderr]    Compiling ntest_timeout v0.7.3
[INFO] [stderr]    Compiling test-env-log v0.2.8
[INFO] [stderr]     Checking ntest v0.7.3
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking futures-util v0.3.18
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]    Compiling prost v0.8.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]    Compiling prost-types v0.8.0
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]    Compiling tonic-build v0.5.2
[INFO] [stderr]    Compiling pact-plugin-driver v0.0.9
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking serde_json v1.0.72
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking os_info v3.0.8
[INFO] [stderr] error: failed to run custom build command for `pact-plugin-driver v0.0.9`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pact-plugin-driver-46b5adfa5fe20001/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the toolchain 'cac44d9528e3bbbdaa1537d187bd489ccc5de18c'
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "15c5e3468c2b304a9458e63ce3afb71889dd0d1d6d21c3c3472ab8d4ce390638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c5e3468c2b304a9458e63ce3afb71889dd0d1d6d21c3c3472ab8d4ce390638", kill_on_drop: false }`
[INFO] [stdout] 15c5e3468c2b304a9458e63ce3afb71889dd0d1d6d21c3c3472ab8d4ce390638