[INFO] updating cached repository caphindsight/vdneg
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/caphindsight/vdneg
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/caphindsight/vdneg" "work/ex/beta-1.38-1/sources/1.37.0/gh/caphindsight/vdneg"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/caphindsight/vdneg'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/caphindsight/vdneg" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/caphindsight/vdneg"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/caphindsight/vdneg'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f71e01df48c81d0b5b5e160eca0c6f8b52899418
[INFO] sha for GitHub repo caphindsight/vdneg: f71e01df48c81d0b5b5e160eca0c6f8b52899418
[INFO] validating manifest of caphindsight/vdneg 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 caphindsight/vdneg 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 caphindsight/vdneg
[INFO] finished frobbing caphindsight/vdneg
[INFO] frobbed toml for caphindsight/vdneg written to work/ex/beta-1.38-1/sources/1.37.0/gh/caphindsight/vdneg/Cargo.toml
[INFO] started frobbing caphindsight/vdneg
[INFO] finished frobbing caphindsight/vdneg
[INFO] frobbed toml for caphindsight/vdneg written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/caphindsight/vdneg/Cargo.toml
[INFO] crate caphindsight/vdneg 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 caphindsight/vdneg 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/caphindsight/vdneg:/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] b268615e8f54b87a60e1d05e8c7e71fb321505c5c5896a2afd3c3f088e703bf3
[INFO] running `"docker" "start" "-a" "b268615e8f54b87a60e1d05e8c7e71fb321505c5c5896a2afd3c3f088e703bf3"`
[INFO] [stderr]    Compiling vdneg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `cards::Rank`
[INFO] [stderr]  --> src/combo.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use cards::Rank;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cards::Suit`
[INFO] [stderr]  --> src/combo.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use cards::Suit;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/cards.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn to_string(self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_unicode_string`
[INFO] [stderr]   --> src/cards.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn to_unicode_string(self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_ascii_string`
[INFO] [stderr]   --> src/cards.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn to_ascii_string(self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_long_unicode_string`
[INFO] [stderr]    --> src/cards.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     pub fn to_long_unicode_string(self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_long_ascii_string`
[INFO] [stderr]    --> src/cards.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn to_long_ascii_string(self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deck_unshuffled`
[INFO] [stderr]    --> src/cards.rs:223:1
[INFO] [stderr]     |
[INFO] [stderr] 223 | pub fn deck_unshuffled() -> Vec<Card> { vec![
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deck_shuffled`
[INFO] [stderr]    --> src/cards.rs:281:1
[INFO] [stderr]     |
[INFO] [stderr] 281 | pub fn deck_shuffled() -> Vec<Card> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Straight`
[INFO] [stderr]   --> src/combo.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Straight,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Flush`
[INFO] [stderr]   --> src/combo.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Flush,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FullHouse`
[INFO] [stderr]   --> src/combo.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     FullHouse,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FourOfKind`
[INFO] [stderr]   --> src/combo.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     FourOfKind,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StraightFlush`
[INFO] [stderr]   --> src/combo.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     StraightFlush,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RoyalFlush`
[INFO] [stderr]   --> src/combo.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     RoyalFlush,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_long_unicode_string`
[INFO] [stderr]   --> src/combo.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn to_long_unicode_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_long_ascii_string`
[INFO] [stderr]   --> src/combo.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn to_long_ascii_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `filter_by_suit`
[INFO] [stderr]    --> src/combo.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     fn filter_by_suit(cards: &[Card], suit: Suit) -> Vec<Card> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "b268615e8f54b87a60e1d05e8c7e71fb321505c5c5896a2afd3c3f088e703bf3"`
[INFO] running `"docker" "rm" "-f" "b268615e8f54b87a60e1d05e8c7e71fb321505c5c5896a2afd3c3f088e703bf3"`
[INFO] [stdout] b268615e8f54b87a60e1d05e8c7e71fb321505c5c5896a2afd3c3f088e703bf3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/caphindsight/vdneg:/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] 12ca4ebaea4b0ec08d6f13111663ba22af1b4f8642cfcf9ddf26d6a0b43809de
[INFO] running `"docker" "start" "-a" "12ca4ebaea4b0ec08d6f13111663ba22af1b4f8642cfcf9ddf26d6a0b43809de"`
[INFO] [stderr]    Compiling vdneg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `cards::Rank`
[INFO] [stderr]  --> src/combo.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use cards::Rank;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cards::Suit`
[INFO] [stderr]  --> src/combo.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use cards::Suit;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/cards.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn to_string(self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_unicode_string`
[INFO] [stderr]   --> src/cards.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn to_unicode_string(self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_ascii_string`
[INFO] [stderr]   --> src/cards.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn to_ascii_string(self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_long_unicode_string`
[INFO] [stderr]    --> src/cards.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     pub fn to_long_unicode_string(self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_long_ascii_string`
[INFO] [stderr]    --> src/cards.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn to_long_ascii_string(self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deck_unshuffled`
[INFO] [stderr]    --> src/cards.rs:223:1
[INFO] [stderr]     |
[INFO] [stderr] 223 | pub fn deck_unshuffled() -> Vec<Card> { vec![
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deck_shuffled`
[INFO] [stderr]    --> src/cards.rs:281:1
[INFO] [stderr]     |
[INFO] [stderr] 281 | pub fn deck_shuffled() -> Vec<Card> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Straight`
[INFO] [stderr]   --> src/combo.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Straight,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Flush`
[INFO] [stderr]   --> src/combo.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Flush,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FullHouse`
[INFO] [stderr]   --> src/combo.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     FullHouse,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FourOfKind`
[INFO] [stderr]   --> src/combo.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     FourOfKind,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StraightFlush`
[INFO] [stderr]   --> src/combo.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     StraightFlush,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RoyalFlush`
[INFO] [stderr]   --> src/combo.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     RoyalFlush,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_long_unicode_string`
[INFO] [stderr]   --> src/combo.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn to_long_unicode_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_long_ascii_string`
[INFO] [stderr]   --> src/combo.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn to_long_ascii_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `filter_by_suit`
[INFO] [stderr]    --> src/combo.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     fn filter_by_suit(cards: &[Card], suit: Suit) -> Vec<Card> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "12ca4ebaea4b0ec08d6f13111663ba22af1b4f8642cfcf9ddf26d6a0b43809de"`
[INFO] running `"docker" "rm" "-f" "12ca4ebaea4b0ec08d6f13111663ba22af1b4f8642cfcf9ddf26d6a0b43809de"`
[INFO] [stdout] 12ca4ebaea4b0ec08d6f13111663ba22af1b4f8642cfcf9ddf26d6a0b43809de
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/caphindsight/vdneg:/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] 73905f4f0ad04bb6b0367b53a700340620cd60d425dad694009b0ed9cb821c1b
[INFO] running `"docker" "start" "-a" "73905f4f0ad04bb6b0367b53a700340620cd60d425dad694009b0ed9cb821c1b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/vdneg-2aea5fc57c0e8ca6
[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" "73905f4f0ad04bb6b0367b53a700340620cd60d425dad694009b0ed9cb821c1b"`
[INFO] running `"docker" "rm" "-f" "73905f4f0ad04bb6b0367b53a700340620cd60d425dad694009b0ed9cb821c1b"`
[INFO] [stdout] 73905f4f0ad04bb6b0367b53a700340620cd60d425dad694009b0ed9cb821c1b