[INFO] updating cached repository wmedrano/synth
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wmedrano/synth
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wmedrano/synth" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/wmedrano/synth"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/wmedrano/synth'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wmedrano/synth" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/wmedrano/synth"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/wmedrano/synth'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c4ca0dc31b96065b23099fccfe6d0e8b69a5d09
[INFO] sha for GitHub repo wmedrano/synth: 7c4ca0dc31b96065b23099fccfe6d0e8b69a5d09
[INFO] validating manifest of wmedrano/synth on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wmedrano/synth on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wmedrano/synth
[INFO] finished frobbing wmedrano/synth
[INFO] frobbed toml for wmedrano/synth written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/wmedrano/synth/Cargo.toml
[INFO] started frobbing wmedrano/synth
[INFO] finished frobbing wmedrano/synth
[INFO] frobbed toml for wmedrano/synth written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/wmedrano/synth/Cargo.toml
[INFO] crate wmedrano/synth has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking wmedrano/synth against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-1/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/wmedrano/synth:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] acee12801de1974b15f5290efee95584c3598a821a41d29e2a30b2d88b33ba30
[INFO] running `"docker" "start" "-a" "acee12801de1974b15f5290efee95584c3598a821a41d29e2a30b2d88b33ba30"`
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking wmidi v0.1.2
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]     Checking jack-sys v0.2.0
[INFO] [stderr]     Checking jack v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking fmsynth v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.85s
[INFO] running `"docker" "inspect" "acee12801de1974b15f5290efee95584c3598a821a41d29e2a30b2d88b33ba30"`
[INFO] running `"docker" "rm" "-f" "acee12801de1974b15f5290efee95584c3598a821a41d29e2a30b2d88b33ba30"`
[INFO] [stdout] acee12801de1974b15f5290efee95584c3598a821a41d29e2a30b2d88b33ba30