[INFO] fetching crate substrate-browser-utils 0.8.0...
[INFO] checking substrate-browser-utils-0.8.0 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate substrate-browser-utils 0.8.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate substrate-browser-utils 0.8.0 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate substrate-browser-utils 0.8.0
[INFO] finished tweaking crates.io crate substrate-browser-utils 0.8.0
[INFO] tweaked toml for crates.io crate substrate-browser-utils 0.8.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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] 4827de38663e7f4b03955a88b5fcadb350484e26e5a0a7eeb547d01e801b2610
[INFO] running `Command { std: "docker" "start" "-a" "4827de38663e7f4b03955a88b5fcadb350484e26e5a0a7eeb547d01e801b2610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4827de38663e7f4b03955a88b5fcadb350484e26e5a0a7eeb547d01e801b2610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4827de38663e7f4b03955a88b5fcadb350484e26e5a0a7eeb547d01e801b2610", kill_on_drop: false }`
[INFO] [stdout] 4827de38663e7f4b03955a88b5fcadb350484e26e5a0a7eeb547d01e801b2610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18688677f52fc50c626cf81c3d68f631f01f5f92ea233f05820a9557ff395f6a
[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" "18688677f52fc50c626cf81c3d68f631f01f5f92ea233f05820a9557ff395f6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking send_wrapper v0.3.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling minicbor-derive v0.4.1
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling libp2p-core-derive v0.20.2
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling slog_derive v0.2.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde v1.0.119
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking ref-cast v1.0.6
[INFO] [stderr]     Checking pin-project v1.0.4
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking dyn-clonable v0.9.0
[INFO] [stderr]     Checking futures-util v0.3.10
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking prometheus v0.10.0
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking secrecy v0.6.0
[INFO] [stderr]     Checking chacha20 v0.5.0
[INFO] [stderr]     Checking async-std v1.8.0
[INFO] [stderr]     Checking asn1_der v0.6.3
[INFO] [stderr]     Checking chacha20poly1305 v0.6.0
[INFO] [stderr]     Checking miow v0.3.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking curve25519-dalek v3.0.2
[INFO] [stderr]     Checking curve25519-dalek v2.1.2
[INFO] [stderr] error: could not compile `impl-trait-for-tuples`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name impl_trait_for_tuples --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/impl-trait-for-tuples-0.1.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=81dccbfa799556fc -C extra-filename=-81dccbfa799556fc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8a8bb825df9136cb.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-e6e45b372c4ec1ec.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-626f90c8472669df.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "18688677f52fc50c626cf81c3d68f631f01f5f92ea233f05820a9557ff395f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18688677f52fc50c626cf81c3d68f631f01f5f92ea233f05820a9557ff395f6a", kill_on_drop: false }`
[INFO] [stdout] 18688677f52fc50c626cf81c3d68f631f01f5f92ea233f05820a9557ff395f6a