[INFO] crate doublecross 0.2.1 is already in cache
[INFO] extracting crate doublecross 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/doublecross/0.2.1
[INFO] extracting crate doublecross 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/doublecross/0.2.1
[INFO] validating manifest of doublecross-0.2.1 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 doublecross-0.2.1 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 doublecross-0.2.1
[INFO] finished frobbing doublecross-0.2.1
[INFO] frobbed toml for doublecross-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/doublecross/0.2.1/Cargo.toml
[INFO] started frobbing doublecross-0.2.1
[INFO] finished frobbing doublecross-0.2.1
[INFO] frobbed toml for doublecross-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/doublecross/0.2.1/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 doublecross-0.2.1 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/reg/doublecross/0.2.1:/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] d1fc898ed82031efba614fee4b665cfb6a73420fd893c3a75ba1f1ad8735a743
[INFO] running `"docker" "start" "-a" "d1fc898ed82031efba614fee4b665cfb6a73420fd893c3a75ba1f1ad8735a743"`
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling doublecross v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `"docker" "inspect" "d1fc898ed82031efba614fee4b665cfb6a73420fd893c3a75ba1f1ad8735a743"`
[INFO] running `"docker" "rm" "-f" "d1fc898ed82031efba614fee4b665cfb6a73420fd893c3a75ba1f1ad8735a743"`
[INFO] [stdout] d1fc898ed82031efba614fee4b665cfb6a73420fd893c3a75ba1f1ad8735a743
[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/reg/doublecross/0.2.1:/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] 363d19096bdf4efb7ca9f4701e50e56562dfec512532719647fe709894917581
[INFO] running `"docker" "start" "-a" "363d19096bdf4efb7ca9f4701e50e56562dfec512532719647fe709894917581"`
[INFO] [stderr]    Compiling doublecross v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `"docker" "inspect" "363d19096bdf4efb7ca9f4701e50e56562dfec512532719647fe709894917581"`
[INFO] running `"docker" "rm" "-f" "363d19096bdf4efb7ca9f4701e50e56562dfec512532719647fe709894917581"`
[INFO] [stdout] 363d19096bdf4efb7ca9f4701e50e56562dfec512532719647fe709894917581
[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/reg/doublecross/0.2.1:/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] 686a97666cf2b9497d24265e22c44e247c6c4be786b224cfe21077a88559f805
[INFO] running `"docker" "start" "-a" "686a97666cf2b9497d24265e22c44e247c6c4be786b224cfe21077a88559f805"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doublecross-d9f36a077fcbbd61
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::simultaneous_handover ... ok
[INFO] [stdout] test tests::asymmetric_message_types ... ok
[INFO] [stdout] test tests::rendezvous_send_select ... ok
[INFO] [stdout] test tests::rendezvous_recv_select ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests doublecross
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - unbounded (line 94) ... ok
[INFO] [stdout] test src/lib.rs - bounded (line 60) ... ok
[INFO] [stdout] test src/lib.rs -  (line 5) ... 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" "686a97666cf2b9497d24265e22c44e247c6c4be786b224cfe21077a88559f805"`
[INFO] running `"docker" "rm" "-f" "686a97666cf2b9497d24265e22c44e247c6c4be786b224cfe21077a88559f805"`
[INFO] [stdout] 686a97666cf2b9497d24265e22c44e247c6c4be786b224cfe21077a88559f805