[INFO] crate pairing-heap 0.1.0 is already in cache
[INFO] extracting crate pairing-heap 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/pairing-heap/0.1.0
[INFO] extracting crate pairing-heap 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pairing-heap/0.1.0
[INFO] validating manifest of pairing-heap-0.1.0 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 pairing-heap-0.1.0 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 pairing-heap-0.1.0
[INFO] finished frobbing pairing-heap-0.1.0
[INFO] frobbed toml for pairing-heap-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/pairing-heap/0.1.0/Cargo.toml
[INFO] started frobbing pairing-heap-0.1.0
[INFO] finished frobbing pairing-heap-0.1.0
[INFO] frobbed toml for pairing-heap-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pairing-heap/0.1.0/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 pairing-heap-0.1.0 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-1/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/pairing-heap/0.1.0:/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] 1fcd666f85eb05ce63c77c30e21a88042028caacf885a4c565e49af37f72d382
[INFO] running `"docker" "start" "-a" "1fcd666f85eb05ce63c77c30e21a88042028caacf885a4c565e49af37f72d382"`
[INFO] [stderr]    Compiling pairing-heap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "1fcd666f85eb05ce63c77c30e21a88042028caacf885a4c565e49af37f72d382"`
[INFO] running `"docker" "rm" "-f" "1fcd666f85eb05ce63c77c30e21a88042028caacf885a4c565e49af37f72d382"`
[INFO] [stdout] 1fcd666f85eb05ce63c77c30e21a88042028caacf885a4c565e49af37f72d382
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/pairing-heap/0.1.0:/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] 01e647b83783c32a3c713ca0381a18513350f0bc058a9baa69fc28f29d63a377
[INFO] running `"docker" "start" "-a" "01e647b83783c32a3c713ca0381a18513350f0bc058a9baa69fc28f29d63a377"`
[INFO] [stderr]    Compiling quickcheck v0.2.27
[INFO] [stderr]    Compiling pairing-heap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/test.rs:73:29
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn shrink(&self) -> Box<Iterator<Item = Self>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `"docker" "inspect" "01e647b83783c32a3c713ca0381a18513350f0bc058a9baa69fc28f29d63a377"`
[INFO] running `"docker" "rm" "-f" "01e647b83783c32a3c713ca0381a18513350f0bc058a9baa69fc28f29d63a377"`
[INFO] [stdout] 01e647b83783c32a3c713ca0381a18513350f0bc058a9baa69fc28f29d63a377
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/pairing-heap/0.1.0:/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] 11035bba9800d741930ce574623270a15d083417686e22da2be4b6b34ca0db3a
[INFO] running `"docker" "start" "-a" "11035bba9800d741930ce574623270a15d083417686e22da2be4b6b34ca0db3a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pairing_heap-6520c7dd05d2dde6
[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/test-81d436b8c98cb87d
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_consistent_with_binary_heap ... ok
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] test test_append ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pairing-heap
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - PairingHeap<T>::replace (line 290) ... ok
[INFO] [stdout] test src/lib.rs - PairingHeap<T>::append (line 251) ... ok
[INFO] [stdout] test src/lib.rs - PairingHeap<T>::push_pop (line 271) ... 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" "11035bba9800d741930ce574623270a15d083417686e22da2be4b6b34ca0db3a"`
[INFO] running `"docker" "rm" "-f" "11035bba9800d741930ce574623270a15d083417686e22da2be4b6b34ca0db3a"`
[INFO] [stdout] 11035bba9800d741930ce574623270a15d083417686e22da2be4b6b34ca0db3a