[INFO] crate coll 0.1.3 is already in cache
[INFO] extracting crate coll 0.1.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/coll/0.1.3
[INFO] extracting crate coll 0.1.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/coll/0.1.3
[INFO] validating manifest of coll-0.1.3 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of coll-0.1.3 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing coll-0.1.3
[INFO] finished frobbing coll-0.1.3
[INFO] frobbed toml for coll-0.1.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/coll/0.1.3/Cargo.toml
[INFO] started frobbing coll-0.1.3
[INFO] finished frobbing coll-0.1.3
[INFO] frobbed toml for coll-0.1.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/coll/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing coll-0.1.3 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/coll/0.1.3:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 7ea68b636ac1d6ced05d6e8c6e26d5a29f0772bc24d6ed6fa1f83ddcf62cc9a0
[INFO] running `"docker" "start" "-a" "7ea68b636ac1d6ced05d6e8c6e26d5a29f0772bc24d6ed6fa1f83ddcf62cc9a0"`
[INFO] [stderr]    Compiling coll v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "7ea68b636ac1d6ced05d6e8c6e26d5a29f0772bc24d6ed6fa1f83ddcf62cc9a0"`
[INFO] running `"docker" "rm" "-f" "7ea68b636ac1d6ced05d6e8c6e26d5a29f0772bc24d6ed6fa1f83ddcf62cc9a0"`
[INFO] [stdout] 7ea68b636ac1d6ced05d6e8c6e26d5a29f0772bc24d6ed6fa1f83ddcf62cc9a0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/coll/0.1.3:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] db04cc54da5f8961440c367dc72f771dd97cb088bb491184b78bc8e837375a59
[INFO] running `"docker" "start" "-a" "db04cc54da5f8961440c367dc72f771dd97cb088bb491184b78bc8e837375a59"`
[INFO] [stderr]    Compiling coll v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "db04cc54da5f8961440c367dc72f771dd97cb088bb491184b78bc8e837375a59"`
[INFO] running `"docker" "rm" "-f" "db04cc54da5f8961440c367dc72f771dd97cb088bb491184b78bc8e837375a59"`
[INFO] [stdout] db04cc54da5f8961440c367dc72f771dd97cb088bb491184b78bc8e837375a59
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/coll/0.1.3:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 4932f0c5f68216640cbc33ae77741d5f00460885729ae355d27979e11f4a2931
[INFO] running `"docker" "start" "-a" "4932f0c5f68216640cbc33ae77741d5f00460885729ae355d27979e11f4a2931"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/coll-70dab5846402d6c7
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test persistent::rbtree::insert_three_items_gives_the_expected_tree ... ok
[INFO] [stdout] test persistent::rbtree::insert_doesnt_allow_duplicates ... ok
[INFO] [stdout] test persistent::rbtree::contains_finds_all_elements ... ok
[INFO] [stdout] test persistent::rbtree::balancing_three_nodes_produces_the_correct_tree_4 ... ok
[INFO] [stdout] test persistent::rbtree::balancing_three_nodes_produces_the_correct_tree_2 ... ok
[INFO] [stdout] test persistent::rbtree::insert_two_items_gives_the_expected_tree ... ok
[INFO] [stdout] test persistent::rbtree::insert_with_7_items_builds_the_correct_tree ... ok
[INFO] [stdout] test persistent::rbtree::two_empty_trees_are_equal ... ok
[INFO] [stdout] test persistent::rbtree::balancing_three_nodes_produces_the_correct_tree_1 ... ok
[INFO] [stdout] test persistent::rbtree::balancing_three_nodes_gives_the_correct_tree_3 ... ok
[INFO] [stdout] test persistent::rbtree::insert_a_single_item_gives_the_expected_tree ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests coll
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::len (line 108) ... ok
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::is_empty (line 137) ... ok
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::contains (line 121) ... ok
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::insert (line 91) ... ok
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::iter (line 155) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4932f0c5f68216640cbc33ae77741d5f00460885729ae355d27979e11f4a2931"`
[INFO] running `"docker" "rm" "-f" "4932f0c5f68216640cbc33ae77741d5f00460885729ae355d27979e11f4a2931"`
[INFO] [stdout] 4932f0c5f68216640cbc33ae77741d5f00460885729ae355d27979e11f4a2931