[INFO] updating cached repository grenade/rust-tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/grenade/rust-tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/grenade/rust-tutorial" "work/ex/beta-1.37-6/sources/1.36.0/gh/grenade/rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/grenade/rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/grenade/rust-tutorial" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/grenade/rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/grenade/rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 38b7a8323404308ee27ae3967fa7388e65c1b48b
[INFO] sha for GitHub repo grenade/rust-tutorial: 38b7a8323404308ee27ae3967fa7388e65c1b48b
[INFO] validating manifest of grenade/rust-tutorial on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of grenade/rust-tutorial on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing grenade/rust-tutorial
[INFO] removed workspace from grenade/rust-tutorial
[INFO] finished frobbing grenade/rust-tutorial
[INFO] frobbed toml for grenade/rust-tutorial written to work/ex/beta-1.37-6/sources/1.36.0/gh/grenade/rust-tutorial/Cargo.toml
[INFO] started frobbing grenade/rust-tutorial
[INFO] removed workspace from grenade/rust-tutorial
[INFO] finished frobbing grenade/rust-tutorial
[INFO] frobbed toml for grenade/rust-tutorial written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/grenade/rust-tutorial/Cargo.toml
[INFO] crate grenade/rust-tutorial already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/grenade/rust-tutorial/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[INFO] the lockfile is outdated, regenerating it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" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing grenade/rust-tutorial against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/grenade/rust-tutorial:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 9d1793484056f6419e66d608c4e808fc332572e223b0cef7b756fba9419d07c8
[INFO] running `"docker" "start" "-a" "9d1793484056f6419e66d608c4e808fc332572e223b0cef7b756fba9419d07c8"`
[INFO] [stderr]    Compiling tutorial v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "9d1793484056f6419e66d608c4e808fc332572e223b0cef7b756fba9419d07c8"`
[INFO] running `"docker" "rm" "-f" "9d1793484056f6419e66d608c4e808fc332572e223b0cef7b756fba9419d07c8"`
[INFO] [stdout] 9d1793484056f6419e66d608c4e808fc332572e223b0cef7b756fba9419d07c8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/grenade/rust-tutorial:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9ee3a40214998c8aed9bbd5b23ee22886c71c9d9565d662d37a4e20a05480c1a
[INFO] running `"docker" "start" "-a" "9ee3a40214998c8aed9bbd5b23ee22886c71c9d9565d662d37a4e20a05480c1a"`
[INFO] [stderr]    Compiling tutorial v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "9ee3a40214998c8aed9bbd5b23ee22886c71c9d9565d662d37a4e20a05480c1a"`
[INFO] running `"docker" "rm" "-f" "9ee3a40214998c8aed9bbd5b23ee22886c71c9d9565d662d37a4e20a05480c1a"`
[INFO] [stdout] 9ee3a40214998c8aed9bbd5b23ee22886c71c9d9565d662d37a4e20a05480c1a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/grenade/rust-tutorial:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] b061431a3cdd0134b553b6e767bb16e76fe65afb5b6c35695d92533333eac1b5
[INFO] running `"docker" "start" "-a" "b061431a3cdd0134b553b6e767bb16e76fe65afb5b6c35695d92533333eac1b5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tutorial-8caa977065196aac
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b061431a3cdd0134b553b6e767bb16e76fe65afb5b6c35695d92533333eac1b5"`
[INFO] running `"docker" "rm" "-f" "b061431a3cdd0134b553b6e767bb16e76fe65afb5b6c35695d92533333eac1b5"`
[INFO] [stdout] b061431a3cdd0134b553b6e767bb16e76fe65afb5b6c35695d92533333eac1b5