[INFO] crate disjoint-sets 0.4.2 is already in cache
[INFO] extracting crate disjoint-sets 0.4.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/disjoint-sets/0.4.2
[INFO] extracting crate disjoint-sets 0.4.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/disjoint-sets/0.4.2
[INFO] validating manifest of disjoint-sets-0.4.2 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 disjoint-sets-0.4.2 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 disjoint-sets-0.4.2
[INFO] finished frobbing disjoint-sets-0.4.2
[INFO] frobbed toml for disjoint-sets-0.4.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/disjoint-sets/0.4.2/Cargo.toml
[INFO] started frobbing disjoint-sets-0.4.2
[INFO] finished frobbing disjoint-sets-0.4.2
[INFO] frobbed toml for disjoint-sets-0.4.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/disjoint-sets/0.4.2/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 disjoint-sets-0.4.2 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-6/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/disjoint-sets/0.4.2:/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] 5b217e68e2d673fa1f52b4c958a2c1af937fe7963c83f950053a213be92dd530
[INFO] running `"docker" "start" "-a" "5b217e68e2d673fa1f52b4c958a2c1af937fe7963c83f950053a213be92dd530"`
[INFO] [stderr]    Compiling disjoint-sets v0.4.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "5b217e68e2d673fa1f52b4c958a2c1af937fe7963c83f950053a213be92dd530"`
[INFO] running `"docker" "rm" "-f" "5b217e68e2d673fa1f52b4c958a2c1af937fe7963c83f950053a213be92dd530"`
[INFO] [stdout] 5b217e68e2d673fa1f52b4c958a2c1af937fe7963c83f950053a213be92dd530
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/disjoint-sets/0.4.2:/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] f858d5d6a9d5dc1fd31b2ee2a02c142d33d98ffca11ce9f216e9f38d098e0b66
[INFO] running `"docker" "start" "-a" "f858d5d6a9d5dc1fd31b2ee2a02c142d33d98ffca11ce9f216e9f38d098e0b66"`
[INFO] [stderr]    Compiling disjoint-sets v0.4.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `"docker" "inspect" "f858d5d6a9d5dc1fd31b2ee2a02c142d33d98ffca11ce9f216e9f38d098e0b66"`
[INFO] running `"docker" "rm" "-f" "f858d5d6a9d5dc1fd31b2ee2a02c142d33d98ffca11ce9f216e9f38d098e0b66"`
[INFO] [stdout] f858d5d6a9d5dc1fd31b2ee2a02c142d33d98ffca11ce9f216e9f38d098e0b66
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/disjoint-sets/0.4.2:/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] b2c712c13663de70334ff2a523539fac970c854289168fea64b6c916bc33cdf5
[INFO] running `"docker" "start" "-a" "b2c712c13663de70334ff2a523539fac970c854289168fea64b6c916bc33cdf5"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/disjoint_sets-90f8458633c9c169
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test array::tests::len ... ok
[INFO] [stdout] test async::tests::to_vec ... ok
[INFO] [stdout] test async::tests::len ... ok
[INFO] [stdout] test tree::tests::unify_symbols ... ok
[INFO] [stdout] test tree::tests::unify_flat ... ok
[INFO] [stdout] test tree::tests::unify_vars ... ok
[INFO] [stdout] test tree::tests::union ... ok
[INFO] [stdout] test async::tests::unions ... ok
[INFO] [stdout] test async::tests::union ... ok
[INFO] [stdout] test tree::tests::unify_deeper ... ok
[INFO] [stdout] test tree::tests::unions ... ok
[INFO] [stdout] test array::tests::union ... ok
[INFO] [stdout] test array::tests::unions ... ok
[INFO] [stdout] test async::tests::changed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests disjoint-sets
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 27) ... ok
[INFO] [stdout] test src/lib.rs -  (line 37) ... ok
[INFO] [stdout] test src/tree.rs - tree::UnionFindNode (line 25) ... 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" "b2c712c13663de70334ff2a523539fac970c854289168fea64b6c916bc33cdf5"`
[INFO] running `"docker" "rm" "-f" "b2c712c13663de70334ff2a523539fac970c854289168fea64b6c916bc33cdf5"`
[INFO] [stdout] b2c712c13663de70334ff2a523539fac970c854289168fea64b6c916bc33cdf5