[INFO] updating cached repository tobyjsullivan/tower
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tobyjsullivan/tower
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tobyjsullivan/tower" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/tobyjsullivan/tower"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/tobyjsullivan/tower'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tobyjsullivan/tower" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/tobyjsullivan/tower"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/tobyjsullivan/tower'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fba7eee7c0ccb73168a5fc48ea9dfea9a7edaa8c
[INFO] sha for GitHub repo tobyjsullivan/tower: fba7eee7c0ccb73168a5fc48ea9dfea9a7edaa8c
[INFO] validating manifest of tobyjsullivan/tower on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tobyjsullivan/tower on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tobyjsullivan/tower
[INFO] finished frobbing tobyjsullivan/tower
[INFO] frobbed toml for tobyjsullivan/tower written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/tobyjsullivan/tower/Cargo.toml
[INFO] started frobbing tobyjsullivan/tower
[INFO] finished frobbing tobyjsullivan/tower
[INFO] frobbed toml for tobyjsullivan/tower written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/tobyjsullivan/tower/Cargo.toml
[INFO] crate tobyjsullivan/tower already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tobyjsullivan/tower against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-2/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/tobyjsullivan/tower:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5e09a94b0e6115d62dbdba4eb30b03e9b4d6f9eaa02a05169842f61ffb054a76
[INFO] running `"docker" "start" "-a" "5e09a94b0e6115d62dbdba4eb30b03e9b4d6f9eaa02a05169842f61ffb054a76"`
[INFO] [stderr]     Checking tower v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "5e09a94b0e6115d62dbdba4eb30b03e9b4d6f9eaa02a05169842f61ffb054a76"`
[INFO] running `"docker" "rm" "-f" "5e09a94b0e6115d62dbdba4eb30b03e9b4d6f9eaa02a05169842f61ffb054a76"`
[INFO] [stdout] 5e09a94b0e6115d62dbdba4eb30b03e9b4d6f9eaa02a05169842f61ffb054a76