[INFO] cloning repository uchuhimo/rust_playground
[INFO] running `"git" "clone" "--bare" "git://github.com/uchuhimo/rust_playground.git" "work/cache/sources/gh/uchuhimo/rust_playground"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/uchuhimo/rust_playground'...
[INFO] running `"git" "clone" "work/cache/sources/gh/uchuhimo/rust_playground" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/uchuhimo/rust_playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/uchuhimo/rust_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/uchuhimo/rust_playground" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/uchuhimo/rust_playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/uchuhimo/rust_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 216615f4167db9941b3bb4d9084204e6dc953140
[INFO] sha for GitHub repo uchuhimo/rust_playground: 216615f4167db9941b3bb4d9084204e6dc953140
[INFO] validating manifest of uchuhimo/rust_playground on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of uchuhimo/rust_playground on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing uchuhimo/rust_playground
[INFO] finished frobbing uchuhimo/rust_playground
[INFO] frobbed toml for uchuhimo/rust_playground written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/uchuhimo/rust_playground/Cargo.toml
[INFO] started frobbing uchuhimo/rust_playground
[INFO] finished frobbing uchuhimo/rust_playground
[INFO] frobbed toml for uchuhimo/rust_playground written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/uchuhimo/rust_playground/Cargo.toml
[INFO] crate uchuhimo/rust_playground already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing uchuhimo/rust_playground against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/uchuhimo/rust_playground:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 9ee5677bc8f2b2b5d161efea72b9f71b7cc94c3f034a6266fa3037ee72669033
[INFO] running `"docker" "start" "-a" "9ee5677bc8f2b2b5d161efea72b9f71b7cc94c3f034a6266fa3037ee72669033"`
[INFO] [stderr]    Compiling rust_playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/trait_object.rs:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn print(ab: &AB) {
[INFO] [stderr]    |               ^^ help: use `dyn`: `dyn AB`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/trait_object.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |     println!("{}", (&x as &B).b());
[INFO] [stderr]    |                            ^ help: use `dyn`: `dyn B`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `"docker" "inspect" "9ee5677bc8f2b2b5d161efea72b9f71b7cc94c3f034a6266fa3037ee72669033"`
[INFO] running `"docker" "rm" "-f" "9ee5677bc8f2b2b5d161efea72b9f71b7cc94c3f034a6266fa3037ee72669033"`
[INFO] [stdout] 9ee5677bc8f2b2b5d161efea72b9f71b7cc94c3f034a6266fa3037ee72669033
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/uchuhimo/rust_playground:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7fad2959615b9e379b71a84c6d0839ecea33255c5ec19713fbb073493dda238c
[INFO] running `"docker" "start" "-a" "7fad2959615b9e379b71a84c6d0839ecea33255c5ec19713fbb073493dda238c"`
[INFO] [stderr]    Compiling rust_playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/trait_object.rs:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn print(ab: &AB) {
[INFO] [stderr]    |               ^^ help: use `dyn`: `dyn AB`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/trait_object.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |     println!("{}", (&x as &B).b());
[INFO] [stderr]    |                            ^ help: use `dyn`: `dyn B`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "7fad2959615b9e379b71a84c6d0839ecea33255c5ec19713fbb073493dda238c"`
[INFO] running `"docker" "rm" "-f" "7fad2959615b9e379b71a84c6d0839ecea33255c5ec19713fbb073493dda238c"`
[INFO] [stdout] 7fad2959615b9e379b71a84c6d0839ecea33255c5ec19713fbb073493dda238c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/uchuhimo/rust_playground:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 57d2e3458fd6f211b550ac423f4bf2d2e5cb1b43a264897b0e520db22bb736c2
[INFO] running `"docker" "start" "-a" "57d2e3458fd6f211b550ac423f4bf2d2e5cb1b43a264897b0e520db22bb736c2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground-72596412fb77bab2
[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]      Running /opt/crater/target/debug/deps/multi_impl-cbee9a3d4de24f39
[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] [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] [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]      Running /opt/crater/target/debug/deps/overload-f48fc2263aaebb21
[INFO] [stderr]      Running /opt/crater/target/debug/deps/trait_object-2ee26c7dcbb30849
[INFO] [stderr]    Doc-tests playground
[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" "57d2e3458fd6f211b550ac423f4bf2d2e5cb1b43a264897b0e520db22bb736c2"`
[INFO] running `"docker" "rm" "-f" "57d2e3458fd6f211b550ac423f4bf2d2e5cb1b43a264897b0e520db22bb736c2"`
[INFO] [stdout] 57d2e3458fd6f211b550ac423f4bf2d2e5cb1b43a264897b0e520db22bb736c2