[INFO] cloning repository https://github.com/Bosswell/block_chain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bosswell/block_chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBosswell%2Fblock_chain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBosswell%2Fblock_chain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51fbb5ada2e50f043acf24b862edf9091f7bf1ea
[INFO] checking Bosswell/block_chain against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBosswell%2Fblock_chain" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Bosswell/block_chain on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Bosswell/block_chain
[INFO] finished tweaking git repo https://github.com/Bosswell/block_chain
[INFO] tweaked toml for git repo https://github.com/Bosswell/block_chain written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Bosswell/block_chain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] 7df78eae82e69be66175b873edeeba056854835fb64441a0c62c115b53c43500
[INFO] running `Command { std: "docker" "start" "-a" "7df78eae82e69be66175b873edeeba056854835fb64441a0c62c115b53c43500", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7df78eae82e69be66175b873edeeba056854835fb64441a0c62c115b53c43500", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7df78eae82e69be66175b873edeeba056854835fb64441a0c62c115b53c43500", kill_on_drop: false }`
[INFO] [stdout] 7df78eae82e69be66175b873edeeba056854835fb64441a0c62c115b53c43500
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e77df02bfbc3cf2bd35de27e9af2abcd4d6f96fdae2ff369fd4ac295eea99fc2
[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" "e77df02bfbc3cf2bd35de27e9af2abcd4d6f96fdae2ff369fd4ac295eea99fc2", kill_on_drop: false }`
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking ripemd160 v0.7.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking groestl v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking whirlpool v0.9.0
[INFO] [stderr]     Checking blake2 v0.9.0
[INFO] [stderr]     Checking crypto-hashes v0.9.0
[INFO] [stderr]     Checking block_chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.28s
[INFO] running `Command { std: "docker" "inspect" "e77df02bfbc3cf2bd35de27e9af2abcd4d6f96fdae2ff369fd4ac295eea99fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e77df02bfbc3cf2bd35de27e9af2abcd4d6f96fdae2ff369fd4ac295eea99fc2", kill_on_drop: false }`
[INFO] [stdout] e77df02bfbc3cf2bd35de27e9af2abcd4d6f96fdae2ff369fd4ac295eea99fc2