[INFO] crate groupable 0.2.0 is already in cache
[INFO] extracting crate groupable 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/groupable/0.2.0
[INFO] extracting crate groupable 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/groupable/0.2.0
[INFO] validating manifest of groupable-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 groupable-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 groupable-0.2.0
[INFO] finished frobbing groupable-0.2.0
[INFO] frobbed toml for groupable-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/groupable/0.2.0/Cargo.toml
[INFO] started frobbing groupable-0.2.0
[INFO] finished frobbing groupable-0.2.0
[INFO] frobbed toml for groupable-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/groupable/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 groupable-0.2.0 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-2/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/groupable/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d078a62f22e06ee945d2e6add2102ee80af5d862d0c1be65f5813e9da11cdee9
[INFO] running `"docker" "start" "-a" "d078a62f22e06ee945d2e6add2102ee80af5d862d0c1be65f5813e9da11cdee9"`
[INFO] [stderr]    Compiling groupable v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:69:1
[INFO] [stderr]    |
[INFO] [stderr] 69 | / macro_rules! impl_uint_keyed_iter {
[INFO] [stderr] 70 | |     ($name:ident) => (
[INFO] [stderr] 71 | |         impl <V, U: Extend<V> + FromIterator<V>> FromKeyedIterator<usize, V> for $name<U> {
[INFO] [stderr] 72 | |             fn from_keyed_iter<T: Iterator<Item=(usize, V)>>(iter: T) -> $name<U> {
[INFO] [stderr] ...  |
[INFO] [stderr] 78 | |     )
[INFO] [stderr] 79 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `"docker" "inspect" "d078a62f22e06ee945d2e6add2102ee80af5d862d0c1be65f5813e9da11cdee9"`
[INFO] running `"docker" "rm" "-f" "d078a62f22e06ee945d2e6add2102ee80af5d862d0c1be65f5813e9da11cdee9"`
[INFO] [stdout] d078a62f22e06ee945d2e6add2102ee80af5d862d0c1be65f5813e9da11cdee9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/groupable/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9e304d52ab91a497ab1e2b91c8ccba617d76081896734306cc677c8afbe2c5e9
[INFO] running `"docker" "start" "-a" "9e304d52ab91a497ab1e2b91c8ccba617d76081896734306cc677c8afbe2c5e9"`
[INFO] [stderr]    Compiling groupable v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:69:1
[INFO] [stderr]    |
[INFO] [stderr] 69 | / macro_rules! impl_uint_keyed_iter {
[INFO] [stderr] 70 | |     ($name:ident) => (
[INFO] [stderr] 71 | |         impl <V, U: Extend<V> + FromIterator<V>> FromKeyedIterator<usize, V> for $name<U> {
[INFO] [stderr] 72 | |             fn from_keyed_iter<T: Iterator<Item=(usize, V)>>(iter: T) -> $name<U> {
[INFO] [stderr] ...  |
[INFO] [stderr] 78 | |     )
[INFO] [stderr] 79 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "9e304d52ab91a497ab1e2b91c8ccba617d76081896734306cc677c8afbe2c5e9"`
[INFO] running `"docker" "rm" "-f" "9e304d52ab91a497ab1e2b91c8ccba617d76081896734306cc677c8afbe2c5e9"`
[INFO] [stdout] 9e304d52ab91a497ab1e2b91c8ccba617d76081896734306cc677c8afbe2c5e9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/groupable/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 18eac391e256bfd8e0b5bfd717f94f25a1bbc5650e38a873bf2f6f4b06a3de8e
[INFO] running `"docker" "start" "-a" "18eac391e256bfd8e0b5bfd717f94f25a1bbc5650e38a873bf2f6f4b06a3de8e"`
[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 2 tests
[INFO] [stdout] test hashmap ... ok
[INFO] [stdout] test btreemap ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/groupable-068dfab97cd65d7d
[INFO] [stderr]      Running /opt/crater/target/debug/deps/groupable_tests-44739e4ca257f21a
[INFO] [stderr]    Doc-tests groupable
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Groupable::group (line 15) ... 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" "18eac391e256bfd8e0b5bfd717f94f25a1bbc5650e38a873bf2f6f4b06a3de8e"`
[INFO] running `"docker" "rm" "-f" "18eac391e256bfd8e0b5bfd717f94f25a1bbc5650e38a873bf2f6f4b06a3de8e"`
[INFO] [stdout] 18eac391e256bfd8e0b5bfd717f94f25a1bbc5650e38a873bf2f6f4b06a3de8e