[INFO] crate bytevec 0.2.0 is already in cache
[INFO] extracting crate bytevec 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/bytevec/0.2.0
[INFO] extracting crate bytevec 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bytevec/0.2.0
[INFO] validating manifest of bytevec-0.2.0 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 bytevec-0.2.0 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 bytevec-0.2.0
[INFO] finished frobbing bytevec-0.2.0
[INFO] frobbed toml for bytevec-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/bytevec/0.2.0/Cargo.toml
[INFO] started frobbing bytevec-0.2.0
[INFO] finished frobbing bytevec-0.2.0
[INFO] frobbed toml for bytevec-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bytevec/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 bytevec-0.2.0 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/reg/bytevec/0.2.0:/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] d1358dc503da08e06d11dc373de14db10367a0fd813c078ffe28cd0018b88054
[INFO] running `"docker" "start" "-a" "d1358dc503da08e06d11dc373de14db10367a0fd813c078ffe28cd0018b88054"`
[INFO] [stderr]    Compiling bytevec v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `"docker" "inspect" "d1358dc503da08e06d11dc373de14db10367a0fd813c078ffe28cd0018b88054"`
[INFO] running `"docker" "rm" "-f" "d1358dc503da08e06d11dc373de14db10367a0fd813c078ffe28cd0018b88054"`
[INFO] [stdout] d1358dc503da08e06d11dc373de14db10367a0fd813c078ffe28cd0018b88054
[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/reg/bytevec/0.2.0:/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] 25debb80db0fbab66a05e8ff6ce012804ad18855a5bbb150e973b44971c6e166
[INFO] running `"docker" "start" "-a" "25debb80db0fbab66a05e8ff6ce012804ad18855a5bbb150e973b44971c6e166"`
[INFO] [stderr]    Compiling bytevec v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `"docker" "inspect" "25debb80db0fbab66a05e8ff6ce012804ad18855a5bbb150e973b44971c6e166"`
[INFO] running `"docker" "rm" "-f" "25debb80db0fbab66a05e8ff6ce012804ad18855a5bbb150e973b44971c6e166"`
[INFO] [stdout] 25debb80db0fbab66a05e8ff6ce012804ad18855a5bbb150e973b44971c6e166
[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/reg/bytevec/0.2.0:/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] 216d3f623fb7e1fb19dd8c668e415a8d1eb8e20ce9853429adf8ead10d843eaa
[INFO] running `"docker" "start" "-a" "216d3f623fb7e1fb19dd8c668e415a8d1eb8e20ce9853429adf8ead10d843eaa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bytevec-d43d236a1f5cad53
[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/lib-5794a463910af07c
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_decode_limit_err ... ok
[INFO] [stdout] test test_serialize_slices ... ok
[INFO] [stdout] test test_serialize_set ... ok
[INFO] [stdout] test test_serialize_slice_with_map_containers ... ok
[INFO] [stdout] test test_serialize_tuple ... ok
[INFO] [stdout] test test_u8_upper_limit_encode_err ... ok
[INFO] [stdout] test test_serialize_map ... ok
[INFO] [stdout] test test_serialize_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bytevec
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 123) ... ok
[INFO] [stdout] test src/macros.rs - bytevec_impls (line 19) ... ok
[INFO] [stdout] test src/macros.rs - bytevec_decl (line 150) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "216d3f623fb7e1fb19dd8c668e415a8d1eb8e20ce9853429adf8ead10d843eaa"`
[INFO] running `"docker" "rm" "-f" "216d3f623fb7e1fb19dd8c668e415a8d1eb8e20ce9853429adf8ead10d843eaa"`
[INFO] [stdout] 216d3f623fb7e1fb19dd8c668e415a8d1eb8e20ce9853429adf8ead10d843eaa