[INFO] updating cached repository NoahTheDuke/rust_practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/NoahTheDuke/rust_practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/NoahTheDuke/rust_practice" "work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NoahTheDuke/rust_practice" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NoahTheDuke/rust_practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NoahTheDuke/rust_practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6a39d4c32b375c0145dcc96caa717310cb600c73
[INFO] sha for GitHub repo NoahTheDuke/rust_practice: 6a39d4c32b375c0145dcc96caa717310cb600c73
[INFO] validating manifest of NoahTheDuke/rust_practice 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 NoahTheDuke/rust_practice 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 NoahTheDuke/rust_practice
[INFO] finished frobbing NoahTheDuke/rust_practice
[INFO] frobbed toml for NoahTheDuke/rust_practice written to work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_practice/Cargo.toml
[INFO] started frobbing NoahTheDuke/rust_practice
[INFO] finished frobbing NoahTheDuke/rust_practice
[INFO] frobbed toml for NoahTheDuke/rust_practice written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NoahTheDuke/rust_practice/Cargo.toml
[INFO] crate NoahTheDuke/rust_practice 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/NoahTheDuke/rust_practice/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[INFO] the lockfile is outdated, regenerating it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 NoahTheDuke/rust_practice 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_practice:/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] d0061b4eaff002cfc43763b15d4140612aeb5a27f6ad07bbdf9f1e5cb75ae95b
[INFO] running `"docker" "start" "-a" "d0061b4eaff002cfc43763b15d4140612aeb5a27f6ad07bbdf9f1e5cb75ae95b"`
[INFO] [stderr]    Compiling practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `"docker" "inspect" "d0061b4eaff002cfc43763b15d4140612aeb5a27f6ad07bbdf9f1e5cb75ae95b"`
[INFO] running `"docker" "rm" "-f" "d0061b4eaff002cfc43763b15d4140612aeb5a27f6ad07bbdf9f1e5cb75ae95b"`
[INFO] [stdout] d0061b4eaff002cfc43763b15d4140612aeb5a27f6ad07bbdf9f1e5cb75ae95b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_practice:/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] a2608f44a7e985ea7e6fa97b701545a1597b4dae5e4590e05615017ea95b614c
[INFO] running `"docker" "start" "-a" "a2608f44a7e985ea7e6fa97b701545a1597b4dae5e4590e05615017ea95b614c"`
[INFO] [stderr]    Compiling practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "a2608f44a7e985ea7e6fa97b701545a1597b4dae5e4590e05615017ea95b614c"`
[INFO] running `"docker" "rm" "-f" "a2608f44a7e985ea7e6fa97b701545a1597b4dae5e4590e05615017ea95b614c"`
[INFO] [stdout] a2608f44a7e985ea7e6fa97b701545a1597b4dae5e4590e05615017ea95b614c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_practice:/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] fea8aeb527542e2b21c3c20e95868d17f9b13c53aea2fe47086c4ff6abf498d3
[INFO] running `"docker" "start" "-a" "fea8aeb527542e2b21c3c20e95868d17f9b13c53aea2fe47086c4ff6abf498d3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/practice-4aa7f357f69fb3c7
[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" "fea8aeb527542e2b21c3c20e95868d17f9b13c53aea2fe47086c4ff6abf498d3"`
[INFO] running `"docker" "rm" "-f" "fea8aeb527542e2b21c3c20e95868d17f9b13c53aea2fe47086c4ff6abf498d3"`
[INFO] [stdout] fea8aeb527542e2b21c3c20e95868d17f9b13c53aea2fe47086c4ff6abf498d3