[INFO] updating cached repository thenixan/learning-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/thenixan/learning-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/thenixan/learning-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/thenixan/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/thenixan/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/thenixan/learning-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thenixan/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thenixan/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d6613b3e981867003821b2297af6b8cf1c58dbd5
[INFO] sha for GitHub repo thenixan/learning-rust: d6613b3e981867003821b2297af6b8cf1c58dbd5
[INFO] validating manifest of thenixan/learning-rust 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 thenixan/learning-rust 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 thenixan/learning-rust
[INFO] finished frobbing thenixan/learning-rust
[INFO] frobbed toml for thenixan/learning-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/thenixan/learning-rust/Cargo.toml
[INFO] started frobbing thenixan/learning-rust
[INFO] finished frobbing thenixan/learning-rust
[INFO] frobbed toml for thenixan/learning-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thenixan/learning-rust/Cargo.toml
[INFO] crate thenixan/learning-rust 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing thenixan/learning-rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thenixan/learning-rust:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 6b66cc04ed8125dfa44b06a77d400358e7e76bb413e90094cf0a5cbfe75903ba
[INFO] running `"docker" "start" "-a" "6b66cc04ed8125dfa44b06a77d400358e7e76bb413e90094cf0a5cbfe75903ba"`
[INFO] [stderr]    Compiling task_manager v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "6b66cc04ed8125dfa44b06a77d400358e7e76bb413e90094cf0a5cbfe75903ba"`
[INFO] running `"docker" "rm" "-f" "6b66cc04ed8125dfa44b06a77d400358e7e76bb413e90094cf0a5cbfe75903ba"`
[INFO] [stdout] 6b66cc04ed8125dfa44b06a77d400358e7e76bb413e90094cf0a5cbfe75903ba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thenixan/learning-rust:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b296dced1178a81f2d7414658425b6698c12ff5a67e90f22c4d740c1524cf647
[INFO] running `"docker" "start" "-a" "b296dced1178a81f2d7414658425b6698c12ff5a67e90f22c4d740c1524cf647"`
[INFO] [stderr]    Compiling task_manager v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `"docker" "inspect" "b296dced1178a81f2d7414658425b6698c12ff5a67e90f22c4d740c1524cf647"`
[INFO] running `"docker" "rm" "-f" "b296dced1178a81f2d7414658425b6698c12ff5a67e90f22c4d740c1524cf647"`
[INFO] [stdout] b296dced1178a81f2d7414658425b6698c12ff5a67e90f22c4d740c1524cf647
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thenixan/learning-rust:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 5acafd31858eb1a95ef7aae687ba02f818cc75609410fb49df4d64b85efe99cd
[INFO] running `"docker" "start" "-a" "5acafd31858eb1a95ef7aae687ba02f818cc75609410fb49df4d64b85efe99cd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/task_manager-79bf52281ab225c0
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test first::test::basics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/task_manager-f7842040f8b60d91
[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] [stderr]    Doc-tests task_manager
[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" "5acafd31858eb1a95ef7aae687ba02f818cc75609410fb49df4d64b85efe99cd"`
[INFO] running `"docker" "rm" "-f" "5acafd31858eb1a95ef7aae687ba02f818cc75609410fb49df4d64b85efe99cd"`
[INFO] [stdout] 5acafd31858eb1a95ef7aae687ba02f818cc75609410fb49df4d64b85efe99cd