[INFO] fetching crate gpgrv 0.3.0...
[INFO] checking gpgrv-0.3.0 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate gpgrv 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gpgrv 0.3.0 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gpgrv 0.3.0
[INFO] finished tweaking crates.io crate gpgrv 0.3.0
[INFO] tweaked toml for crates.io crate gpgrv 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate gpgrv 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha-1 v0.9.1
[INFO] [stderr]   Downloaded libflate_lz77 v1.0.0
[INFO] [stderr]   Downloaded libflate v1.0.2
[INFO] [stderr]   Downloaded num-bigint v0.3.0
[INFO] [stderr]   Downloaded distro-keyring v0.1.0
[INFO] [stderr]   Downloaded sha2 v0.9.1
[INFO] [stderr]   Downloaded iowrap v0.2.0
[INFO] [stderr]   Downloaded num-complex v0.3.0
[INFO] [stderr]   Downloaded num v0.3.0
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8ea81f4be8b97ffc30d58f9e33a8e5252df20aa8e3061a7c3f59be3b2e0d726
[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" "b8ea81f4be8b97ffc30d58f9e33a8e5252df20aa8e3061a7c3f59be3b2e0d726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8ea81f4be8b97ffc30d58f9e33a8e5252df20aa8e3061a7c3f59be3b2e0d726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ea81f4be8b97ffc30d58f9e33a8e5252df20aa8e3061a7c3f59be3b2e0d726", kill_on_drop: false }`
[INFO] [stdout] b8ea81f4be8b97ffc30d58f9e33a8e5252df20aa8e3061a7c3f59be3b2e0d726
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9b57236e95760e359444bfc60cb10c4bf5c1ff582daae95f556dc729e020e2b
[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" "f9b57236e95760e359444bfc60cb10c4bf5c1ff582daae95f556dc729e020e2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking libflate_lz77 v1.0.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking iowrap v0.2.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking distro-keyring v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking libflate v1.0.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]     Checking gpgrv v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.62s
[INFO] running `Command { std: "docker" "inspect" "f9b57236e95760e359444bfc60cb10c4bf5c1ff582daae95f556dc729e020e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9b57236e95760e359444bfc60cb10c4bf5c1ff582daae95f556dc729e020e2b", kill_on_drop: false }`
[INFO] [stdout] f9b57236e95760e359444bfc60cb10c4bf5c1ff582daae95f556dc729e020e2b