[INFO] fetching crate drand-verify 0.1.0...
[INFO] checking drand-verify-0.1.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate drand-verify 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate drand-verify 0.1.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drand-verify 0.1.0
[INFO] finished tweaking crates.io crate drand-verify 0.1.0
[INFO] tweaked toml for crates.io crate drand-verify 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate drand-verify 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] e7eff0d48a36d6de740702cfff108f7fdd68e57ae3f954b91bb917f7b5619bff
[INFO] running `Command { std: "docker" "start" "-a" "e7eff0d48a36d6de740702cfff108f7fdd68e57ae3f954b91bb917f7b5619bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7eff0d48a36d6de740702cfff108f7fdd68e57ae3f954b91bb917f7b5619bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7eff0d48a36d6de740702cfff108f7fdd68e57ae3f954b91bb917f7b5619bff", kill_on_drop: false }`
[INFO] [stdout] e7eff0d48a36d6de740702cfff108f7fdd68e57ae3f954b91bb917f7b5619bff
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f7d0f19d13d4b1783e033df6e032f969933c7b627b83ecb55ada22adc86baff
[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" "2f7d0f19d13d4b1783e033df6e032f969933c7b627b83ecb55ada22adc86baff", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling hex-literal v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling fff v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.1.14
[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 digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling fff_derive v0.2.2
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking groupy v0.3.1
[INFO] [stderr]     Checking paired v0.21.0
[INFO] [stderr]     Checking drand-verify v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.75s
[INFO] running `Command { std: "docker" "inspect" "2f7d0f19d13d4b1783e033df6e032f969933c7b627b83ecb55ada22adc86baff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7d0f19d13d4b1783e033df6e032f969933c7b627b83ecb55ada22adc86baff", kill_on_drop: false }`
[INFO] [stdout] 2f7d0f19d13d4b1783e033df6e032f969933c7b627b83ecb55ada22adc86baff