[INFO] updating cached repository filiplazovic/learning-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/filiplazovic/learning-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/filiplazovic/learning-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/filiplazovic/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/filiplazovic/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/filiplazovic/learning-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/filiplazovic/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/filiplazovic/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4c4d47a543ad6bbbd9d42281512aa4160232c93b
[INFO] sha for GitHub repo filiplazovic/learning-rust: 4c4d47a543ad6bbbd9d42281512aa4160232c93b
[INFO] validating manifest of filiplazovic/learning-rust 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 filiplazovic/learning-rust 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 filiplazovic/learning-rust
[INFO] finished frobbing filiplazovic/learning-rust
[INFO] frobbed toml for filiplazovic/learning-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/filiplazovic/learning-rust/Cargo.toml
[INFO] started frobbing filiplazovic/learning-rust
[INFO] finished frobbing filiplazovic/learning-rust
[INFO] frobbed toml for filiplazovic/learning-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/filiplazovic/learning-rust/Cargo.toml
[INFO] crate filiplazovic/learning-rust 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]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing filiplazovic/learning-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/filiplazovic/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 095e65d30bab3ff5fe2208084f3582291da5598f1edf83a6d802d51a0c0b6e71
[INFO] running `"docker" "start" "-a" "095e65d30bab3ff5fe2208084f3582291da5598f1edf83a6d802d51a0c0b6e71"`
[INFO] [stderr]    Compiling serde_json v1.0.35
[INFO] [stderr]    Compiling syn v0.15.25
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.25s
[INFO] running `"docker" "inspect" "095e65d30bab3ff5fe2208084f3582291da5598f1edf83a6d802d51a0c0b6e71"`
[INFO] running `"docker" "rm" "-f" "095e65d30bab3ff5fe2208084f3582291da5598f1edf83a6d802d51a0c0b6e71"`
[INFO] [stdout] 095e65d30bab3ff5fe2208084f3582291da5598f1edf83a6d802d51a0c0b6e71
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/filiplazovic/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3a41a268c2e22936a962b2c0642d52a8b15a4c23b38d50fa8368478bd8e4e5cc
[INFO] running `"docker" "start" "-a" "3a41a268c2e22936a962b2c0642d52a8b15a4c23b38d50fa8368478bd8e4e5cc"`
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "3a41a268c2e22936a962b2c0642d52a8b15a4c23b38d50fa8368478bd8e4e5cc"`
[INFO] running `"docker" "rm" "-f" "3a41a268c2e22936a962b2c0642d52a8b15a4c23b38d50fa8368478bd8e4e5cc"`
[INFO] [stdout] 3a41a268c2e22936a962b2c0642d52a8b15a4c23b38d50fa8368478bd8e4e5cc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/filiplazovic/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 8acc46d43a8653ca4837e7b890d0260d56c998a4f4c762bb6731852947888067
[INFO] running `"docker" "start" "-a" "8acc46d43a8653ca4837e7b890d0260d56c998a4f4c762bb6731852947888067"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning_rust-b6c2a32f6803c4d0
[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" "8acc46d43a8653ca4837e7b890d0260d56c998a4f4c762bb6731852947888067"`
[INFO] running `"docker" "rm" "-f" "8acc46d43a8653ca4837e7b890d0260d56c998a4f4c762bb6731852947888067"`
[INFO] [stdout] 8acc46d43a8653ca4837e7b890d0260d56c998a4f4c762bb6731852947888067