[INFO] crate byte-sequence 0.2.2 is already in cache
[INFO] extracting crate byte-sequence 0.2.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/byte-sequence/0.2.2
[INFO] extracting crate byte-sequence 0.2.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte-sequence/0.2.2
[INFO] validating manifest of byte-sequence-0.2.2 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 byte-sequence-0.2.2 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 byte-sequence-0.2.2
[INFO] finished frobbing byte-sequence-0.2.2
[INFO] frobbed toml for byte-sequence-0.2.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/byte-sequence/0.2.2/Cargo.toml
[INFO] started frobbing byte-sequence-0.2.2
[INFO] finished frobbing byte-sequence-0.2.2
[INFO] frobbed toml for byte-sequence-0.2.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte-sequence/0.2.2/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 byte-sequence-0.2.2 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-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte-sequence/0.2.2:/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] 03bfa9ec72eb8615c7a78abb3cd30cfb2a8fcc0fb0d5a9d0509940a10f698fba
[INFO] running `"docker" "start" "-a" "03bfa9ec72eb8615c7a78abb3cd30cfb2a8fcc0fb0d5a9d0509940a10f698fba"`
[INFO] [stderr]    Compiling byte-sequence v0.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "03bfa9ec72eb8615c7a78abb3cd30cfb2a8fcc0fb0d5a9d0509940a10f698fba"`
[INFO] running `"docker" "rm" "-f" "03bfa9ec72eb8615c7a78abb3cd30cfb2a8fcc0fb0d5a9d0509940a10f698fba"`
[INFO] [stdout] 03bfa9ec72eb8615c7a78abb3cd30cfb2a8fcc0fb0d5a9d0509940a10f698fba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte-sequence/0.2.2:/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] eec7fd259f10c5a1061cbbe3ee67a48522289e6e24551ee955bf82fbc4faeaa1
[INFO] running `"docker" "start" "-a" "eec7fd259f10c5a1061cbbe3ee67a48522289e6e24551ee955bf82fbc4faeaa1"`
[INFO] [stderr]    Compiling byte-sequence v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]    --> src/lib.rs:147:17
[INFO] [stderr]     |
[INFO] [stderr] 147 |     use serde::{Deserialize, Deserializer, Serialize, Serializer};
[INFO] [stderr]     |                 ^^^^^^^^^^^                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Deserializer`
[INFO] [stderr]    --> src/lib.rs:147:30
[INFO] [stderr]     |
[INFO] [stderr] 147 |     use serde::{Deserialize, Deserializer, Serialize, Serializer};
[INFO] [stderr]     |                              ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Serializer`
[INFO] [stderr]    --> src/lib.rs:147:55
[INFO] [stderr]     |
[INFO] [stderr] 147 |     use serde::{Deserialize, Deserializer, Serialize, Serializer};
[INFO] [stderr]     |                                                       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "eec7fd259f10c5a1061cbbe3ee67a48522289e6e24551ee955bf82fbc4faeaa1"`
[INFO] running `"docker" "rm" "-f" "eec7fd259f10c5a1061cbbe3ee67a48522289e6e24551ee955bf82fbc4faeaa1"`
[INFO] [stdout] eec7fd259f10c5a1061cbbe3ee67a48522289e6e24551ee955bf82fbc4faeaa1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte-sequence/0.2.2:/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] 6d3067e1015aebd619a700cfc22040196418a05f6962638853cb4845f512f1dc
[INFO] running `"docker" "start" "-a" "6d3067e1015aebd619a700cfc22040196418a05f6962638853cb4845f512f1dc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/byte_sequence-6512ed6a565dd8bb
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests byte-sequence
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::example ... ok
[INFO] [stdout] test tests::serialize_deserialize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 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] running `"docker" "inspect" "6d3067e1015aebd619a700cfc22040196418a05f6962638853cb4845f512f1dc"`
[INFO] running `"docker" "rm" "-f" "6d3067e1015aebd619a700cfc22040196418a05f6962638853cb4845f512f1dc"`
[INFO] [stdout] 6d3067e1015aebd619a700cfc22040196418a05f6962638853cb4845f512f1dc