[INFO] updating cached repository hawkw/grist
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hawkw/grist
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hawkw/grist" "work/ex/beta-1.38-1/sources/1.37.0/gh/hawkw/grist"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hawkw/grist'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hawkw/grist" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hawkw/grist"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hawkw/grist'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2a7bba6d22eed6ce315ae977b8f0cd53dee0e33a
[INFO] sha for GitHub repo hawkw/grist: 2a7bba6d22eed6ce315ae977b8f0cd53dee0e33a
[INFO] validating manifest of hawkw/grist on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hawkw/grist on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hawkw/grist
[INFO] finished frobbing hawkw/grist
[INFO] frobbed toml for hawkw/grist written to work/ex/beta-1.38-1/sources/1.37.0/gh/hawkw/grist/Cargo.toml
[INFO] started frobbing hawkw/grist
[INFO] finished frobbing hawkw/grist
[INFO] frobbed toml for hawkw/grist written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hawkw/grist/Cargo.toml
[INFO] crate hawkw/grist already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hawkw/grist/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hawkw/grist against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hawkw/grist:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8fd7cdfeec13869955372e26dae3ece6074bc9ab4f8e03f93ded2fd68d8de696
[INFO] running `"docker" "start" "-a" "8fd7cdfeec13869955372e26dae3ece6074bc9ab4f8e03f93ded2fd68d8de696"`
[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 `grist v0.0.1 (/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 `grist v0.0.1 (/opt/crater/workdir)`
[INFO] [stderr] also links to native library `z`
[INFO] running `"docker" "inspect" "8fd7cdfeec13869955372e26dae3ece6074bc9ab4f8e03f93ded2fd68d8de696"`
[INFO] running `"docker" "rm" "-f" "8fd7cdfeec13869955372e26dae3ece6074bc9ab4f8e03f93ded2fd68d8de696"`
[INFO] [stdout] 8fd7cdfeec13869955372e26dae3ece6074bc9ab4f8e03f93ded2fd68d8de696