[INFO] fetching crate dhcp4r 0.2.1...
[INFO] checking dhcp4r-0.2.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate dhcp4r 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate dhcp4r 0.2.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dhcp4r 0.2.1
[INFO] finished tweaking crates.io crate dhcp4r 0.2.1
[INFO] tweaked toml for crates.io crate dhcp4r 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate dhcp4r 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b78eea83aa18be193ef33f6d98e8d6a5ff17acd7d2d7da4d3ba4b2e0b30f452f
[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" "b78eea83aa18be193ef33f6d98e8d6a5ff17acd7d2d7da4d3ba4b2e0b30f452f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b78eea83aa18be193ef33f6d98e8d6a5ff17acd7d2d7da4d3ba4b2e0b30f452f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b78eea83aa18be193ef33f6d98e8d6a5ff17acd7d2d7da4d3ba4b2e0b30f452f", kill_on_drop: false }`
[INFO] [stdout] b78eea83aa18be193ef33f6d98e8d6a5ff17acd7d2d7da4d3ba4b2e0b30f452f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92f737008e09e6e69583c3ecdc739a32ee48dccb7476c485860eaad059a77186
[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" "92f737008e09e6e69583c3ecdc739a32ee48dccb7476c485860eaad059a77186", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling nom v6.0.0
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling enum-primitive-derive v0.2.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking dhcp4r v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/server.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use(u32_bytes, bytes_u32)]
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.06s
[INFO] running `Command { std: "docker" "inspect" "92f737008e09e6e69583c3ecdc739a32ee48dccb7476c485860eaad059a77186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f737008e09e6e69583c3ecdc739a32ee48dccb7476c485860eaad059a77186", kill_on_drop: false }`
[INFO] [stdout] 92f737008e09e6e69583c3ecdc739a32ee48dccb7476c485860eaad059a77186