[INFO] updating cached repository gandro/cargo-rumpbake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gandro/cargo-rumpbake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gandro/cargo-rumpbake" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/gandro/cargo-rumpbake"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/gandro/cargo-rumpbake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gandro/cargo-rumpbake" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/gandro/cargo-rumpbake"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/gandro/cargo-rumpbake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c01766991326e5e613f4c994bdcf80226b83cd8
[INFO] sha for GitHub repo gandro/cargo-rumpbake: 7c01766991326e5e613f4c994bdcf80226b83cd8
[INFO] validating manifest of gandro/cargo-rumpbake on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gandro/cargo-rumpbake on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gandro/cargo-rumpbake
[INFO] finished frobbing gandro/cargo-rumpbake
[INFO] frobbed toml for gandro/cargo-rumpbake written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/gandro/cargo-rumpbake/Cargo.toml
[INFO] started frobbing gandro/cargo-rumpbake
[INFO] finished frobbing gandro/cargo-rumpbake
[INFO] frobbed toml for gandro/cargo-rumpbake written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/gandro/cargo-rumpbake/Cargo.toml
[INFO] crate gandro/cargo-rumpbake already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/gandro/cargo-rumpbake/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gandro/cargo-rumpbake against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-0/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/gandro/cargo-rumpbake:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dab03e1c016b857357ae095392eba4b0cffeda79f0fcfbe061aad5c0649f3a4e
[INFO] running `"docker" "start" "-a" "dab03e1c016b857357ae095392eba4b0cffeda79f0fcfbe061aad5c0649f3a4e"`
[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 `curl-sys v0.1.35`
[INFO] [stderr]     ... which is depended on by `curl v0.2.19`
[INFO] [stderr]     ... which is depended on by `cargo v0.5.0`
[INFO] [stderr]     ... which is depended on by `cargo-rumpbake v0.5.0 (/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 `cargo v0.5.0`
[INFO] [stderr]     ... which is depended on by `cargo-rumpbake v0.5.0 (/opt/crater/workdir)`
[INFO] [stderr] also links to native library `z`
[INFO] running `"docker" "inspect" "dab03e1c016b857357ae095392eba4b0cffeda79f0fcfbe061aad5c0649f3a4e"`
[INFO] running `"docker" "rm" "-f" "dab03e1c016b857357ae095392eba4b0cffeda79f0fcfbe061aad5c0649f3a4e"`
[INFO] [stdout] dab03e1c016b857357ae095392eba4b0cffeda79f0fcfbe061aad5c0649f3a4e