[INFO] fetching crate bls_signature_aggregator 0.2.7...
[INFO] checking bls_signature_aggregator-0.2.7 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate bls_signature_aggregator 0.2.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bls_signature_aggregator 0.2.7 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bls_signature_aggregator 0.2.7
[INFO] finished tweaking crates.io crate bls_signature_aggregator 0.2.7
[INFO] tweaked toml for crates.io crate bls_signature_aggregator 0.2.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71fba1484f1d8a76dae0085cc8fda7ae35d624aa73ba0115191fbc9ad49f3efb
[INFO] running `Command { std: "docker" "start" "-a" "71fba1484f1d8a76dae0085cc8fda7ae35d624aa73ba0115191fbc9ad49f3efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71fba1484f1d8a76dae0085cc8fda7ae35d624aa73ba0115191fbc9ad49f3efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71fba1484f1d8a76dae0085cc8fda7ae35d624aa73ba0115191fbc9ad49f3efb", kill_on_drop: false }`
[INFO] [stdout] 71fba1484f1d8a76dae0085cc8fda7ae35d624aa73ba0115191fbc9ad49f3efb
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bafbe9686ef140dd467131cc502e03628912856c531d31cc5853db84092b73c3
[INFO] running `Command { std: "docker" "start" "-a" "bafbe9686ef140dd467131cc502e03628912856c531d31cc5853db84092b73c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking backtrace v0.3.60
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling ff_derive v0.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking ff v0.6.0
[INFO] [stderr]     Checking group v0.6.0
[INFO] [stderr]     Checking pairing v0.16.0
[INFO] [stderr]     Checking threshold_crypto v0.4.0
[INFO] [stderr]     Checking bls_signature_aggregator v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.88s
[INFO] running `Command { std: "docker" "inspect" "bafbe9686ef140dd467131cc502e03628912856c531d31cc5853db84092b73c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bafbe9686ef140dd467131cc502e03628912856c531d31cc5853db84092b73c3", kill_on_drop: false }`
[INFO] [stdout] bafbe9686ef140dd467131cc502e03628912856c531d31cc5853db84092b73c3