[INFO] updating cached repository nyirog/bbtree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nyirog/bbtree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nyirog/bbtree" "work/ex/beta-1.37-6/sources/1.36.0/gh/nyirog/bbtree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nyirog/bbtree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nyirog/bbtree" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nyirog/bbtree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nyirog/bbtree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9dd289810716fd7d2159b686df90237c77c324e7
[INFO] sha for GitHub repo nyirog/bbtree: 9dd289810716fd7d2159b686df90237c77c324e7
[INFO] validating manifest of nyirog/bbtree 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 nyirog/bbtree 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 nyirog/bbtree
[INFO] finished frobbing nyirog/bbtree
[INFO] frobbed toml for nyirog/bbtree written to work/ex/beta-1.37-6/sources/1.36.0/gh/nyirog/bbtree/Cargo.toml
[INFO] started frobbing nyirog/bbtree
[INFO] finished frobbing nyirog/bbtree
[INFO] frobbed toml for nyirog/bbtree written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nyirog/bbtree/Cargo.toml
[INFO] crate nyirog/bbtree already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nyirog/bbtree against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nyirog/bbtree:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 53bf94136f959fd7c5a23dc3fc0aa4e896603cd8e8b430c1a41a8dbec780450a
[INFO] running `"docker" "start" "-a" "53bf94136f959fd7c5a23dc3fc0aa4e896603cd8e8b430c1a41a8dbec780450a"`
[INFO] [stderr]    Compiling bbtree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "53bf94136f959fd7c5a23dc3fc0aa4e896603cd8e8b430c1a41a8dbec780450a"`
[INFO] running `"docker" "rm" "-f" "53bf94136f959fd7c5a23dc3fc0aa4e896603cd8e8b430c1a41a8dbec780450a"`
[INFO] [stdout] 53bf94136f959fd7c5a23dc3fc0aa4e896603cd8e8b430c1a41a8dbec780450a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nyirog/bbtree:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1c623693562558c765e42939996c58596858a60edab86873433cb17a7a02dcbf
[INFO] running `"docker" "start" "-a" "1c623693562558c765e42939996c58596858a60edab86873433cb17a7a02dcbf"`
[INFO] [stderr]    Compiling bbtree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "1c623693562558c765e42939996c58596858a60edab86873433cb17a7a02dcbf"`
[INFO] running `"docker" "rm" "-f" "1c623693562558c765e42939996c58596858a60edab86873433cb17a7a02dcbf"`
[INFO] [stdout] 1c623693562558c765e42939996c58596858a60edab86873433cb17a7a02dcbf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nyirog/bbtree:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f15921f2d3871a51b2631a379aa8e3a8ff71504d129add838f25e442fcd8aa35
[INFO] running `"docker" "start" "-a" "f15921f2d3871a51b2631a379aa8e3a8ff71504d129add838f25e442fcd8aa35"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bbtree-b0d91678dfc0f9d5
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test test_empty_tree_provide_none_for_reference ... ok
[INFO] [stdout] test test_empty_tree_provide_none ... ok
[INFO] [stdout] test test_get_mut_returns_none_for_unknown_key ... ok
[INFO] [stdout] test test_node_get_mut ... ok
[INFO] [stdout] test test_insert_smaller ... ok
[INFO] [stdout] test test_get_mut_tree_bigger ... ok
[INFO] [stdout] test test_get_mut_tree_smaller ... ok
[INFO] [stdout] test test_node_get_mut_can_be_changed ... ok
[INFO] [stdout] test test_node_get_mut_smaller ... ok
[INFO] [stdout] test test_node_get_ref_for_the_bigger_sub_node ... ok
[INFO] [stdout] test test_node_get_ref_for_the_smaller_sub_node ... ok
[INFO] [stdout] test test_node_get_ref_returns_a_reference ... ok
[INFO] [stdout] test test_node_get_ref_returns_node_for_unknown_key ... ok
[INFO] [stdout] test test_tree_get_ref ... ok
[INFO] [stdout] test test_tree_get_ref_bigger ... ok
[INFO] [stdout] test test_tree_get_ref_smaller ... ok
[INFO] [stdout] test test_change_get_mut_tree ... ok
[INFO] [stdout] test test_insert_bigger ... ok
[INFO] [stdout] test test_get_mut_tree ... ok
[INFO] [stdout] test test_node_get_mut_bigger ... ok
[INFO] [stdout] test test_insert ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f15921f2d3871a51b2631a379aa8e3a8ff71504d129add838f25e442fcd8aa35"`
[INFO] running `"docker" "rm" "-f" "f15921f2d3871a51b2631a379aa8e3a8ff71504d129add838f25e442fcd8aa35"`
[INFO] [stdout] f15921f2d3871a51b2631a379aa8e3a8ff71504d129add838f25e442fcd8aa35