[INFO] updating cached repository skade/git-experiments
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/skade/git-experiments
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/skade/git-experiments" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/skade/git-experiments"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/skade/git-experiments'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/skade/git-experiments" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/skade/git-experiments"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/skade/git-experiments'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e0a9ca56e54e0fbeaaf49db849a9c06da8e19c51
[INFO] sha for GitHub repo skade/git-experiments: e0a9ca56e54e0fbeaaf49db849a9c06da8e19c51
[INFO] validating manifest of skade/git-experiments on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of skade/git-experiments on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing skade/git-experiments
[INFO] finished frobbing skade/git-experiments
[INFO] frobbed toml for skade/git-experiments written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/skade/git-experiments/Cargo.toml
[INFO] started frobbing skade/git-experiments
[INFO] finished frobbing skade/git-experiments
[INFO] frobbed toml for skade/git-experiments written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/skade/git-experiments/Cargo.toml
[INFO] crate skade/git-experiments already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/skade/git-experiments/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking skade/git-experiments against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-5/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/skade/git-experiments:/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" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3acc01106767b4f711600a9631829257af8ff5d397b3199434da28489d6c1bb6
[INFO] running `"docker" "start" "-a" "3acc01106767b4f711600a9631829257af8ff5d397b3199434da28489d6c1bb6"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: multiple packages link to native library `z`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `libz-sys v1.0.25`
[INFO] [stderr]     ... which is depended on by `libssh2-sys v0.1.41`
[INFO] [stderr]     ... which is depended on by `libgit2-sys v0.2.20`
[INFO] [stderr]     ... which is depended on by `git2 v0.2.14`
[INFO] [stderr]     ... which is depended on by `git-add-interactive v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] links to native library `z`
[INFO] [stderr] 
[INFO] [stderr] package `libz-sys v0.1.9`
[INFO] [stderr]     ... which is depended on by `libgit2-sys v0.2.20`
[INFO] [stderr]     ... which is depended on by `git2 v0.2.14`
[INFO] [stderr]     ... which is depended on by `git-add-interactive v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] also links to native library `z`
[INFO] running `"docker" "inspect" "3acc01106767b4f711600a9631829257af8ff5d397b3199434da28489d6c1bb6"`
[INFO] running `"docker" "rm" "-f" "3acc01106767b4f711600a9631829257af8ff5d397b3199434da28489d6c1bb6"`
[INFO] [stdout] 3acc01106767b4f711600a9631829257af8ff5d397b3199434da28489d6c1bb6