[INFO] updating cached repository fal-works/rust-practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fal-works/rust-practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fal-works/rust-practice" "work/ex/beta-1.38-1/sources/1.37.0/gh/fal-works/rust-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fal-works/rust-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fal-works/rust-practice" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fal-works/rust-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fal-works/rust-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9b22b6a8a9e5dee6e57755da1345467214e186a8
[INFO] sha for GitHub repo fal-works/rust-practice: 9b22b6a8a9e5dee6e57755da1345467214e186a8
[INFO] validating manifest of fal-works/rust-practice 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 fal-works/rust-practice 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 fal-works/rust-practice
[INFO] finished frobbing fal-works/rust-practice
[INFO] frobbed toml for fal-works/rust-practice written to work/ex/beta-1.38-1/sources/1.37.0/gh/fal-works/rust-practice/Cargo.toml
[INFO] started frobbing fal-works/rust-practice
[INFO] finished frobbing fal-works/rust-practice
[INFO] frobbed toml for fal-works/rust-practice written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fal-works/rust-practice/Cargo.toml
[INFO] crate fal-works/rust-practice 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing fal-works/rust-practice 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/fal-works/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c39536d91af18d3f2ed4a835fad01320c073f0ec49cfa8432760687c2f405e4a
[INFO] running `"docker" "start" "-a" "c39536d91af18d3f2ed4a835fad01320c073f0ec49cfa8432760687c2f405e4a"`
[INFO] [stderr]    Compiling rust-practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:3:65
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn scan<T>(s: &mut StdinLock, initial_value: T, fold_callback: &Fn(T, char) -> T) -> T {
[INFO] [stderr]   |                                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T, char) -> T`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "c39536d91af18d3f2ed4a835fad01320c073f0ec49cfa8432760687c2f405e4a"`
[INFO] running `"docker" "rm" "-f" "c39536d91af18d3f2ed4a835fad01320c073f0ec49cfa8432760687c2f405e4a"`
[INFO] [stdout] c39536d91af18d3f2ed4a835fad01320c073f0ec49cfa8432760687c2f405e4a
[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/fal-works/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b3b98cafca773df323e884291bae294475cc225512ddf3d92151db2672eb287f
[INFO] running `"docker" "start" "-a" "b3b98cafca773df323e884291bae294475cc225512ddf3d92151db2672eb287f"`
[INFO] [stderr]    Compiling rust-practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:3:65
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn scan<T>(s: &mut StdinLock, initial_value: T, fold_callback: &Fn(T, char) -> T) -> T {
[INFO] [stderr]   |                                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T, char) -> T`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "b3b98cafca773df323e884291bae294475cc225512ddf3d92151db2672eb287f"`
[INFO] running `"docker" "rm" "-f" "b3b98cafca773df323e884291bae294475cc225512ddf3d92151db2672eb287f"`
[INFO] [stdout] b3b98cafca773df323e884291bae294475cc225512ddf3d92151db2672eb287f
[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/fal-works/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6b9ce30ea16455b4e4086e7fa073abddb2c494029c9cfa8c7eebf681a34cf7f6
[INFO] running `"docker" "start" "-a" "6b9ce30ea16455b4e4086e7fa073abddb2c494029c9cfa8c7eebf681a34cf7f6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_practice-053d8cdf368cd89c
[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" "6b9ce30ea16455b4e4086e7fa073abddb2c494029c9cfa8c7eebf681a34cf7f6"`
[INFO] running `"docker" "rm" "-f" "6b9ce30ea16455b4e4086e7fa073abddb2c494029c9cfa8c7eebf681a34cf7f6"`
[INFO] [stdout] 6b9ce30ea16455b4e4086e7fa073abddb2c494029c9cfa8c7eebf681a34cf7f6