[INFO] updating cached repository johnchildren/rust-irc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/johnchildren/rust-irc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/johnchildren/rust-irc" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/johnchildren/rust-irc"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/johnchildren/rust-irc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/johnchildren/rust-irc" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/johnchildren/rust-irc"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/johnchildren/rust-irc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 712ec1e4fcd08647bc0505fb2f83da68a8303185
[INFO] sha for GitHub repo johnchildren/rust-irc: 712ec1e4fcd08647bc0505fb2f83da68a8303185
[INFO] validating manifest of johnchildren/rust-irc on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of johnchildren/rust-irc on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing johnchildren/rust-irc
[INFO] finished frobbing johnchildren/rust-irc
[INFO] frobbed toml for johnchildren/rust-irc written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/johnchildren/rust-irc/Cargo.toml
[INFO] started frobbing johnchildren/rust-irc
[INFO] finished frobbing johnchildren/rust-irc
[INFO] frobbed toml for johnchildren/rust-irc written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/johnchildren/rust-irc/Cargo.toml
[INFO] crate johnchildren/rust-irc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking johnchildren/rust-irc against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-2/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/johnchildren/rust-irc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 57c5448f8cb64c3c61d5a2f876652470643561ff7882ba453078b8607758ac73
[INFO] running `"docker" "start" "-a" "57c5448f8cb64c3c61d5a2f876652470643561ff7882ba453078b8607758ac73"`
[INFO] [stderr]     Checking rmp v0.8.6
[INFO] [stderr]     Checking rmp-serde v0.13.4
[INFO] [stderr]     Checking rust-irc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `"docker" "inspect" "57c5448f8cb64c3c61d5a2f876652470643561ff7882ba453078b8607758ac73"`
[INFO] running `"docker" "rm" "-f" "57c5448f8cb64c3c61d5a2f876652470643561ff7882ba453078b8607758ac73"`
[INFO] [stdout] 57c5448f8cb64c3c61d5a2f876652470643561ff7882ba453078b8607758ac73