[INFO] updating cached repository RichoDemus/rust-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RichoDemus/rust-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RichoDemus/rust-test" "work/ex/beta-1.38-1/sources/1.37.0/gh/RichoDemus/rust-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/RichoDemus/rust-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RichoDemus/rust-test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RichoDemus/rust-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RichoDemus/rust-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 45b66918348556ae5ce2fc029f9c91810b1cfe03
[INFO] sha for GitHub repo RichoDemus/rust-test: 45b66918348556ae5ce2fc029f9c91810b1cfe03
[INFO] validating manifest of RichoDemus/rust-test 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 RichoDemus/rust-test 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 RichoDemus/rust-test
[INFO] finished frobbing RichoDemus/rust-test
[INFO] frobbed toml for RichoDemus/rust-test written to work/ex/beta-1.38-1/sources/1.37.0/gh/RichoDemus/rust-test/Cargo.toml
[INFO] started frobbing RichoDemus/rust-test
[INFO] finished frobbing RichoDemus/rust-test
[INFO] frobbed toml for RichoDemus/rust-test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RichoDemus/rust-test/Cargo.toml
[INFO] crate RichoDemus/rust-test 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 RichoDemus/rust-test against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RichoDemus/rust-test:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5ef058541c9cb81b5479bf0dd15f4e14120410d70400ac6401e148c487ae82de
[INFO] running `"docker" "start" "-a" "5ef058541c9cb81b5479bf0dd15f4e14120410d70400ac6401e148c487ae82de"`
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling rust-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let chars: &Characters = &tweet as &Characters;
[INFO] [stderr]    |                 ^^^^^^^^^^ help: use `dyn`: `dyn Characters`
[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/traits.rs:76:41
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let chars: &Characters = &tweet as &Characters;
[INFO] [stderr]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Characters`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:78:16
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let summ: &Summary = &tweet as &Summary;
[INFO] [stderr]    |                ^^^^^^^ help: use `dyn`: `dyn Summary`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:78:37
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let summ: &Summary = &tweet as &Summary;
[INFO] [stderr]    |                                     ^^^^^^^ help: use `dyn`: `dyn Summary`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.97s
[INFO] running `"docker" "inspect" "5ef058541c9cb81b5479bf0dd15f4e14120410d70400ac6401e148c487ae82de"`
[INFO] running `"docker" "rm" "-f" "5ef058541c9cb81b5479bf0dd15f4e14120410d70400ac6401e148c487ae82de"`
[INFO] [stdout] 5ef058541c9cb81b5479bf0dd15f4e14120410d70400ac6401e148c487ae82de
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RichoDemus/rust-test:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 286e2f95ee0ce8a5420b719590320bb42f3ab01607f9f81d9c2c0462b4abf0f6
[INFO] running `"docker" "start" "-a" "286e2f95ee0ce8a5420b719590320bb42f3ab01607f9f81d9c2c0462b4abf0f6"`
[INFO] [stderr]    Compiling rust-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let chars: &Characters = &tweet as &Characters;
[INFO] [stderr]    |                 ^^^^^^^^^^ help: use `dyn`: `dyn Characters`
[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/traits.rs:76:41
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let chars: &Characters = &tweet as &Characters;
[INFO] [stderr]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Characters`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:78:16
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let summ: &Summary = &tweet as &Summary;
[INFO] [stderr]    |                ^^^^^^^ help: use `dyn`: `dyn Summary`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:78:37
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let summ: &Summary = &tweet as &Summary;
[INFO] [stderr]    |                                     ^^^^^^^ help: use `dyn`: `dyn Summary`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `"docker" "inspect" "286e2f95ee0ce8a5420b719590320bb42f3ab01607f9f81d9c2c0462b4abf0f6"`
[INFO] running `"docker" "rm" "-f" "286e2f95ee0ce8a5420b719590320bb42f3ab01607f9f81d9c2c0462b4abf0f6"`
[INFO] [stdout] 286e2f95ee0ce8a5420b719590320bb42f3ab01607f9f81d9c2c0462b4abf0f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RichoDemus/rust-test:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 73c9ec6fbed9495ef7762797244f43ee23a32578eb8ac183d934950c5dd1a5b1
[INFO] running `"docker" "start" "-a" "73c9ec6fbed9495ef7762797244f43ee23a32578eb8ac183d934950c5dd1a5b1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_test_lib-0130ff8bc557ac0d
[INFO] [stdout] running 5 tests
[INFO] [stdout] test testing::tests::another ... ignored
[INFO] [stdout] test testing::tests::internal ... ok
[INFO] [stdout] test testing::tests::it_works_but_with_result ... ok
[INFO] [stdout] test testing::tests::it_works ... ok
[INFO] [stdout] test testing::tests::should_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_test_bin-99783c95e659b0f2
[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/integration_test-61a1d399f382dab2
[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 rust_test_lib
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - add (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "73c9ec6fbed9495ef7762797244f43ee23a32578eb8ac183d934950c5dd1a5b1"`
[INFO] running `"docker" "rm" "-f" "73c9ec6fbed9495ef7762797244f43ee23a32578eb8ac183d934950c5dd1a5b1"`
[INFO] [stdout] 73c9ec6fbed9495ef7762797244f43ee23a32578eb8ac183d934950c5dd1a5b1