[INFO] updating cached repository iolivia/rust-hash-table
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/iolivia/rust-hash-table
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/iolivia/rust-hash-table" "work/ex/beta-1.38-1/sources/1.37.0/gh/iolivia/rust-hash-table"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/iolivia/rust-hash-table'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/iolivia/rust-hash-table" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iolivia/rust-hash-table"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iolivia/rust-hash-table'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 70bcbf4538c699383f1375ef1c596d33258fe900
[INFO] sha for GitHub repo iolivia/rust-hash-table: 70bcbf4538c699383f1375ef1c596d33258fe900
[INFO] validating manifest of iolivia/rust-hash-table 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 iolivia/rust-hash-table 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 iolivia/rust-hash-table
[INFO] finished frobbing iolivia/rust-hash-table
[INFO] frobbed toml for iolivia/rust-hash-table written to work/ex/beta-1.38-1/sources/1.37.0/gh/iolivia/rust-hash-table/Cargo.toml
[INFO] started frobbing iolivia/rust-hash-table
[INFO] finished frobbing iolivia/rust-hash-table
[INFO] frobbed toml for iolivia/rust-hash-table written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iolivia/rust-hash-table/Cargo.toml
[INFO] crate iolivia/rust-hash-table 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing iolivia/rust-hash-table against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/iolivia/rust-hash-table:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 89e5cbc7d65669133bd896c1dd3520491a466a87d5fa3bba8b87738440be41d2
[INFO] running `"docker" "start" "-a" "89e5cbc7d65669133bd896c1dd3520491a466a87d5fa3bba8b87738440be41d2"`
[INFO] [stderr]    Compiling rust-hash-table v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn new(capacity: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "89e5cbc7d65669133bd896c1dd3520491a466a87d5fa3bba8b87738440be41d2"`
[INFO] running `"docker" "rm" "-f" "89e5cbc7d65669133bd896c1dd3520491a466a87d5fa3bba8b87738440be41d2"`
[INFO] [stdout] 89e5cbc7d65669133bd896c1dd3520491a466a87d5fa3bba8b87738440be41d2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/iolivia/rust-hash-table:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2dc113c5443cd025f03e1aa63427b68169700451e80091ea2171dd1edf760fbc
[INFO] running `"docker" "start" "-a" "2dc113c5443cd025f03e1aa63427b68169700451e80091ea2171dd1edf760fbc"`
[INFO] [stderr]    Compiling rust-hash-table v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "2dc113c5443cd025f03e1aa63427b68169700451e80091ea2171dd1edf760fbc"`
[INFO] running `"docker" "rm" "-f" "2dc113c5443cd025f03e1aa63427b68169700451e80091ea2171dd1edf760fbc"`
[INFO] [stdout] 2dc113c5443cd025f03e1aa63427b68169700451e80091ea2171dd1edf760fbc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/iolivia/rust-hash-table:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 02a3dae3b3882b351bc6183c9d1b491c2598447f95dfc468d31159e219b5af15
[INFO] running `"docker" "start" "-a" "02a3dae3b3882b351bc6183c9d1b491c2598447f95dfc468d31159e219b5af15"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 25 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_hash_table-4b34db668d473557
[INFO] [stdout] test tests::insert_at_capacity ... ok
[INFO] [stdout] test tests::insert_at_a_lot_more_capacity ... ok
[INFO] [stdout] test tests::insert_get_different_key_reference ... ok
[INFO] [stdout] test tests::get_when_empty ... ok
[INFO] [stdout] test tests::get_not_found ... ok
[INFO] [stdout] test tests::insert_remove_get ... ok
[INFO] [stdout] test tests::insert_multiple ... ok
[INFO] [stdout] test tests::insert_key_with_symbols ... ok
[INFO] [stdout] test tests::insert_spaces ... ok
[INFO] [stdout] test tests::insert_same_key_fails ... ok
[INFO] [stdout] test tests::remove_first_key_at_capacity ... ok
[INFO] [stdout] test tests::remove_first_key_at_capacity_then_insert_it_again ... ok
[INFO] [stdout] test tests::remove_last_key_at_capacity ... ok
[INFO] [stdout] test tests::remove_when_empty ... ok
[INFO] [stdout] test tests::remove_with_collisions ... ok
[INFO] [stdout] test tests::size_after_multiple_inserts ... ok
[INFO] [stdout] test tests::size_after_one_insert ... ok
[INFO] [stdout] test tests::size_over_capacity ... ok
[INFO] [stdout] test tests::size_after_one_insert_and_one_remove ... ok
[INFO] [stdout] test tests::size_at_capacity ... ok
[INFO] [stdout] test tests::size_when_empty ... ok
[INFO] [stdout] test tests::insert_get ... ok
[INFO] [stdout] test tests::insert_decrements_size ... ok
[INFO] [stdout] test tests::insert_empty ... ok
[INFO] [stdout] test tests::insert_at_double_capacity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "02a3dae3b3882b351bc6183c9d1b491c2598447f95dfc468d31159e219b5af15"`
[INFO] running `"docker" "rm" "-f" "02a3dae3b3882b351bc6183c9d1b491c2598447f95dfc468d31159e219b5af15"`
[INFO] [stdout] 02a3dae3b3882b351bc6183c9d1b491c2598447f95dfc468d31159e219b5af15