[INFO] fetching crate voile 0.2.6...
[INFO] checking voile-0.2.6 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate voile 0.2.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate voile 0.2.6 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate voile 0.2.6
[INFO] finished tweaking crates.io crate voile 0.2.6
[INFO] tweaked toml for crates.io crate voile 0.2.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate voile 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 222007fe4ec2af93f8295bada1480537c1d3281a5b8ad48673bf45e5a82237e6
[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" "222007fe4ec2af93f8295bada1480537c1d3281a5b8ad48673bf45e5a82237e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "222007fe4ec2af93f8295bada1480537c1d3281a5b8ad48673bf45e5a82237e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222007fe4ec2af93f8295bada1480537c1d3281a5b8ad48673bf45e5a82237e6", kill_on_drop: false }`
[INFO] [stdout] 222007fe4ec2af93f8295bada1480537c1d3281a5b8ad48673bf45e5a82237e6
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d35256703dc7db82d05b97a160121d5c1020eb78d07630140eba4ccbb0466f2
[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" "6d35256703dc7db82d05b97a160121d5c1020eb78d07630140eba4ccbb0466f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking rustyline v6.3.0
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking voile-util v0.2.2
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking minitt-util v0.2.4
[INFO] [stderr]     Checking voile v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.15s
[INFO] running `Command { std: "docker" "inspect" "6d35256703dc7db82d05b97a160121d5c1020eb78d07630140eba4ccbb0466f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d35256703dc7db82d05b97a160121d5c1020eb78d07630140eba4ccbb0466f2", kill_on_drop: false }`
[INFO] [stdout] 6d35256703dc7db82d05b97a160121d5c1020eb78d07630140eba4ccbb0466f2