[INFO] crate flat-tree 4.1.0 is already in cache
[INFO] testing flat-tree-4.1.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate flat-tree 4.1.0 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate flat-tree 4.1.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate flat-tree 4.1.0
[INFO] finished tweaking crates.io crate flat-tree 4.1.0
[INFO] tweaked toml for crates.io crate flat-tree 4.1.0 written to work/builds/worker-6/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 939b7aec0200cba55e439791265be1b243af717bbef093bc26d6f7ddb9244943
[INFO] running `"docker" "start" "-a" "939b7aec0200cba55e439791265be1b243af717bbef093bc26d6f7ddb9244943"`
[INFO] [stderr]    Compiling flat-tree v4.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `"docker" "inspect" "939b7aec0200cba55e439791265be1b243af717bbef093bc26d6f7ddb9244943"`
[INFO] running `"docker" "rm" "-f" "939b7aec0200cba55e439791265be1b243af717bbef093bc26d6f7ddb9244943"`
[INFO] [stdout] 939b7aec0200cba55e439791265be1b243af717bbef093bc26d6f7ddb9244943
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9b898d45704d4b53e1cb26d6cbc7761a8c12f97a4f3a088b308c032f60f5538d
[INFO] running `"docker" "start" "-a" "9b898d45704d4b53e1cb26d6cbc7761a8c12f97a4f3a088b308c032f60f5538d"`
[INFO] [stderr]    Compiling flat-tree v4.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "9b898d45704d4b53e1cb26d6cbc7761a8c12f97a4f3a088b308c032f60f5538d"`
[INFO] running `"docker" "rm" "-f" "9b898d45704d4b53e1cb26d6cbc7761a8c12f97a4f3a088b308c032f60f5538d"`
[INFO] [stdout] 9b898d45704d4b53e1cb26d6cbc7761a8c12f97a4f3a088b308c032f60f5538d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] ecd3a3f4ff11b4859a94ee6a6a473994737dfe0fbcfb9afbcf76e58ce50706d2
[INFO] running `"docker" "start" "-a" "ecd3a3f4ff11b4859a94ee6a6a473994737dfe0fbcfb9afbcf76e58ce50706d2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/flat_tree-33dc7a524f6e26f2
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test iterator::tests::test_two_pow ... ok
[INFO] [stdout] test iterator::tests::test_two_pow_64bit ... ok
[INFO] [stdout] test tests::test_child_to_parent_to_child ... ok
[INFO] [stdout] test tests::test_is_odd ... ok
[INFO] [stdout] test tests::test_is_even ... ok
[INFO] [stdout] test tests::test_parent_gt_int32 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iterator-75e333908cedb0d2
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test non_leaf_start ... ok
[INFO] [stdout] test iterator ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iterator_regression-b6dc092fd36430ea
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parent_and_odd_offset ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flat-tree
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::is_left (line 84) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::sibling (line 129) ... ok
[INFO] [stdout] test src/lib.rs - count (line 231) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::left_child (line 203) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::parent (line 146) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::left_span (line 167) ... ok
[INFO] [stdout] test src/lib.rs - depth (line 31) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::seek (line 62) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::right_span (line 185) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::is_right (line 97) ... ok
[INFO] [stdout] test src/iterator.rs - iterator (line 2) ... ok
[INFO] [stdout] test src/lib.rs - children (line 113) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::prev (line 110) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::right_child (line 222) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::new (line 25) ... ok
[INFO] [stdout] test src/lib.rs - full_roots (line 256) ... ok
[INFO] [stdout] test src/lib.rs - left_child (line 135) ... ok
[INFO] [stdout] test src/lib.rs - index (line 12) ... ok
[INFO] [stdout] test src/lib.rs - offset (line 47) ... ok
[INFO] [stdout] test src/lib.rs - right_span (line 176) ... ok
[INFO] [stdout] test src/lib.rs - parent (line 67) ... ok
[INFO] [stdout] test src/lib.rs - left_span (line 196) ... ok
[INFO] [stdout] test src/lib.rs - uncle (line 98) ... ok
[INFO] [stdout] test src/lib.rs - sibling (line 83) ... ok
[INFO] [stdout] test src/lib.rs - right_child (line 155) ... ok
[INFO] [stdout] test src/lib.rs - spans (line 216) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ecd3a3f4ff11b4859a94ee6a6a473994737dfe0fbcfb9afbcf76e58ce50706d2"`
[INFO] running `"docker" "rm" "-f" "ecd3a3f4ff11b4859a94ee6a6a473994737dfe0fbcfb9afbcf76e58ce50706d2"`
[INFO] [stdout] ecd3a3f4ff11b4859a94ee6a6a473994737dfe0fbcfb9afbcf76e58ce50706d2