[INFO] updating cached repository Vdimir/rust-fib-heap
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Vdimir/rust-fib-heap
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Vdimir/rust-fib-heap" "work/ex/beta-1.38-1/sources/1.37.0/gh/Vdimir/rust-fib-heap"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Vdimir/rust-fib-heap'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Vdimir/rust-fib-heap" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vdimir/rust-fib-heap"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vdimir/rust-fib-heap'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aea0fb247d291a7076ab66cfbea9ddfff5868a12
[INFO] sha for GitHub repo Vdimir/rust-fib-heap: aea0fb247d291a7076ab66cfbea9ddfff5868a12
[INFO] validating manifest of Vdimir/rust-fib-heap 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 Vdimir/rust-fib-heap 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 Vdimir/rust-fib-heap
[INFO] finished frobbing Vdimir/rust-fib-heap
[INFO] frobbed toml for Vdimir/rust-fib-heap written to work/ex/beta-1.38-1/sources/1.37.0/gh/Vdimir/rust-fib-heap/Cargo.toml
[INFO] started frobbing Vdimir/rust-fib-heap
[INFO] finished frobbing Vdimir/rust-fib-heap
[INFO] frobbed toml for Vdimir/rust-fib-heap written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vdimir/rust-fib-heap/Cargo.toml
[INFO] crate Vdimir/rust-fib-heap already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Vdimir/rust-fib-heap/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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 Vdimir/rust-fib-heap 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vdimir/rust-fib-heap:/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] 9fb18fb4ed02a5d886576ad07ff507e20efec88346e9d4517d38365973f3544e
[INFO] running `"docker" "start" "-a" "9fb18fb4ed02a5d886576ad07ff507e20efec88346e9d4517d38365973f3544e"`
[INFO] [stderr]    Compiling FibHeap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `FibHeap` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `fib_heap`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "9fb18fb4ed02a5d886576ad07ff507e20efec88346e9d4517d38365973f3544e"`
[INFO] running `"docker" "rm" "-f" "9fb18fb4ed02a5d886576ad07ff507e20efec88346e9d4517d38365973f3544e"`
[INFO] [stdout] 9fb18fb4ed02a5d886576ad07ff507e20efec88346e9d4517d38365973f3544e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vdimir/rust-fib-heap:/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] 203ba82bf09eb6d92043175af1e0c59c45014659152ac14f81f660900030ed2b
[INFO] running `"docker" "start" "-a" "203ba82bf09eb6d92043175af1e0c59c45014659152ac14f81f660900030ed2b"`
[INFO] [stderr]    Compiling FibHeap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `FibHeap` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `fib_heap`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `"docker" "inspect" "203ba82bf09eb6d92043175af1e0c59c45014659152ac14f81f660900030ed2b"`
[INFO] running `"docker" "rm" "-f" "203ba82bf09eb6d92043175af1e0c59c45014659152ac14f81f660900030ed2b"`
[INFO] [stdout] 203ba82bf09eb6d92043175af1e0c59c45014659152ac14f81f660900030ed2b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vdimir/rust-fib-heap:/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] 5f81f6c304f99895e75c6ac70021f79d2589c057e70881891abebc3dec7353d9
[INFO] running `"docker" "start" "-a" "5f81f6c304f99895e75c6ac70021f79d2589c057e70881891abebc3dec7353d9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/FibHeap-d900a44f6037ce1c
[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] [stderr]      Running /opt/crater/target/debug/deps/tests-3f8fdbbe1675f474
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test insert_test ... ok
[INFO] [stdout] test extract_min_test ... ok
[INFO] [stderr]    Doc-tests FibHeap
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] running `"docker" "inspect" "5f81f6c304f99895e75c6ac70021f79d2589c057e70881891abebc3dec7353d9"`
[INFO] running `"docker" "rm" "-f" "5f81f6c304f99895e75c6ac70021f79d2589c057e70881891abebc3dec7353d9"`
[INFO] [stdout] 5f81f6c304f99895e75c6ac70021f79d2589c057e70881891abebc3dec7353d9