[INFO] fetching crate tc-consensus-epochs 0.8.0...
[INFO] testing tc-consensus-epochs-0.8.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate tc-consensus-epochs 0.8.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tc-consensus-epochs 0.8.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tc-consensus-epochs 0.8.0
[INFO] finished tweaking crates.io crate tc-consensus-epochs 0.8.0
[INFO] tweaked toml for crates.io crate tc-consensus-epochs 0.8.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 4b4e9db39c8b79b916da69c7faf435609c6b8e3f0a49a747e5c3a8f242369146
[INFO] running `Command { std: "docker" "start" "-a" "4b4e9db39c8b79b916da69c7faf435609c6b8e3f0a49a747e5c3a8f242369146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b4e9db39c8b79b916da69c7faf435609c6b8e3f0a49a747e5c3a8f242369146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b4e9db39c8b79b916da69c7faf435609c6b8e3f0a49a747e5c3a8f242369146", kill_on_drop: false }`
[INFO] [stdout] 4b4e9db39c8b79b916da69c7faf435609c6b8e3f0a49a747e5c3a8f242369146
[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=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" "+722e1797249a965b6335aebd65d777f917e498f1" "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] f273afe48415c57c10d527113f4430564d862849b1fe32bedf71ac93472484a4
[INFO] running `Command { std: "docker" "start" "-a" "f273afe48415c57c10d527113f4430564d862849b1fe32bedf71ac93472484a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling prometheus v0.10.0
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling uint-crate v0.9.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling tetsy-fixed-hash v0.7.1
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling blocking v1.1.0
[INFO] [stderr]    Compiling lru v0.6.6
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling panic-handler v2.1.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling zeroize_derive v1.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling debug-derive v2.1.2
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling tetsy-util-mem-derive v0.1.1
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[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-0.2.1/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=4af0ec3ad06c9347 -C extra-filename=-4af0ec3ad06c9347 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7592264899f58233.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-33f6fbe9bba2a178.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-afec79c5989c3003.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" "f273afe48415c57c10d527113f4430564d862849b1fe32bedf71ac93472484a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f273afe48415c57c10d527113f4430564d862849b1fe32bedf71ac93472484a4", kill_on_drop: false }`
[INFO] [stdout] f273afe48415c57c10d527113f4430564d862849b1fe32bedf71ac93472484a4