[INFO] cloning repository https://github.com/nilern/BFG
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nilern/BFG" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilern%2FBFG", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilern%2FBFG'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 768fda7e741ef0c3cb70a7f5787a675178cb60e3
[INFO] checking nilern/BFG against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilern%2FBFG" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nilern/BFG on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nilern/BFG
[INFO] finished tweaking git repo https://github.com/nilern/BFG
[INFO] tweaked toml for git repo https://github.com/nilern/BFG written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/nilern/BFG already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 5d5cb696075d399f222bf62ea72986f10a84000e5eb061da48164909953b13ee
[INFO] running `Command { std: "docker" "start" "-a" "5d5cb696075d399f222bf62ea72986f10a84000e5eb061da48164909953b13ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d5cb696075d399f222bf62ea72986f10a84000e5eb061da48164909953b13ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d5cb696075d399f222bf62ea72986f10a84000e5eb061da48164909953b13ee", kill_on_drop: false }`
[INFO] [stdout] 5d5cb696075d399f222bf62ea72986f10a84000e5eb061da48164909953b13ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--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] c7e240c8ac51c4725b65bb747e93c5e67c818cf62f018f00bc575c7f112372b2
[INFO] running `Command { std: "docker" "start" "-a" "c7e240c8ac51c4725b65bb747e93c5e67c818cf62f018f00bc575c7f112372b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking rustc-serialize v0.3.23
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking dynasmrt v0.6.0
[INFO] [stderr]     Checking docopt v0.7.0
[INFO] [stderr]     Checking rustyline v6.0.0
[INFO] [stderr]    Compiling dynasm v0.6.0
[INFO] [stderr]     Checking bfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.44s
[INFO] running `Command { std: "docker" "inspect" "c7e240c8ac51c4725b65bb747e93c5e67c818cf62f018f00bc575c7f112372b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7e240c8ac51c4725b65bb747e93c5e67c818cf62f018f00bc575c7f112372b2", kill_on_drop: false }`
[INFO] [stdout] c7e240c8ac51c4725b65bb747e93c5e67c818cf62f018f00bc575c7f112372b2