[INFO] fetching crate dhcp4r 0.2.3...
[INFO] checking dhcp4r-0.2.3 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate dhcp4r 0.2.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate dhcp4r 0.2.3 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dhcp4r 0.2.3
[INFO] finished tweaking crates.io crate dhcp4r 0.2.3
[INFO] tweaked toml for crates.io crate dhcp4r 0.2.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate dhcp4r 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b743427b23cde4deaac90f3516420c535658f3250efdc57f3d56bcc5c596973b
[INFO] running `Command { std: "docker" "start" "-a" "b743427b23cde4deaac90f3516420c535658f3250efdc57f3d56bcc5c596973b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b743427b23cde4deaac90f3516420c535658f3250efdc57f3d56bcc5c596973b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b743427b23cde4deaac90f3516420c535658f3250efdc57f3d56bcc5c596973b", kill_on_drop: false }`
[INFO] [stdout] b743427b23cde4deaac90f3516420c535658f3250efdc57f3d56bcc5c596973b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0f0ef60240ef3d0a272d586b70693fbaf1b7704be00b2e460406bbac3acc5c7
[INFO] running `Command { std: "docker" "start" "-a" "e0f0ef60240ef3d0a272d586b70693fbaf1b7704be00b2e460406bbac3acc5c7", 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] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]     Checking minimal-lexical v0.1.3
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling nom v7.0.0
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.7
[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 v0.2.3 (/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 12.33s
[INFO] running `Command { std: "docker" "inspect" "e0f0ef60240ef3d0a272d586b70693fbaf1b7704be00b2e460406bbac3acc5c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0f0ef60240ef3d0a272d586b70693fbaf1b7704be00b2e460406bbac3acc5c7", kill_on_drop: false }`
[INFO] [stdout] e0f0ef60240ef3d0a272d586b70693fbaf1b7704be00b2e460406bbac3acc5c7