[INFO] updating cached repository twilson-palantir/turbot-hearts
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/twilson-palantir/turbot-hearts
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/twilson-palantir/turbot-hearts" "work/ex/beta-1.38-1/sources/1.37.0/gh/twilson-palantir/turbot-hearts"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/twilson-palantir/turbot-hearts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/twilson-palantir/turbot-hearts" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/twilson-palantir/turbot-hearts"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/twilson-palantir/turbot-hearts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 31ad66eb72f5ed6396f4f01eb7d713255f644e5a
[INFO] sha for GitHub repo twilson-palantir/turbot-hearts: 31ad66eb72f5ed6396f4f01eb7d713255f644e5a
[INFO] validating manifest of twilson-palantir/turbot-hearts 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 twilson-palantir/turbot-hearts 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 twilson-palantir/turbot-hearts
[INFO] finished frobbing twilson-palantir/turbot-hearts
[INFO] frobbed toml for twilson-palantir/turbot-hearts written to work/ex/beta-1.38-1/sources/1.37.0/gh/twilson-palantir/turbot-hearts/Cargo.toml
[INFO] started frobbing twilson-palantir/turbot-hearts
[INFO] finished frobbing twilson-palantir/turbot-hearts
[INFO] frobbed toml for twilson-palantir/turbot-hearts written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/twilson-palantir/turbot-hearts/Cargo.toml
[INFO] crate twilson-palantir/turbot-hearts 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 twilson-palantir/turbot-hearts 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/twilson-palantir/turbot-hearts:/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] 210b558999f0f32077832046ce6caadb990db7180974e7d432634fdc248bbe1a
[INFO] running `"docker" "start" "-a" "210b558999f0f32077832046ce6caadb990db7180974e7d432634fdc248bbe1a"`
[INFO] [stderr]    Compiling turbot-hearts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let mut chargeable = hand[i] & Cards::CHARGEABLE;
[INFO] [stderr]     |             ----^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "210b558999f0f32077832046ce6caadb990db7180974e7d432634fdc248bbe1a"`
[INFO] running `"docker" "rm" "-f" "210b558999f0f32077832046ce6caadb990db7180974e7d432634fdc248bbe1a"`
[INFO] [stdout] 210b558999f0f32077832046ce6caadb990db7180974e7d432634fdc248bbe1a
[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/twilson-palantir/turbot-hearts:/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] 4a2542d4f2063f712b4c653333bdce77b4ddfff6e2e4f5680a64a8b4b348d215
[INFO] running `"docker" "start" "-a" "4a2542d4f2063f712b4c653333bdce77b4ddfff6e2e4f5680a64a8b4b348d215"`
[INFO] [stderr]    Compiling turbot-hearts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:613:17
[INFO] [stderr]     |
[INFO] [stderr] 613 |                 Cards::empty(),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:623:17
[INFO] [stderr]     |
[INFO] [stderr] 623 |                 Cards::empty(),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:633:17
[INFO] [stderr]     |
[INFO] [stderr] 633 |                 Cards::empty(),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:643:17
[INFO] [stderr]     |
[INFO] [stderr] 643 |                 Cards::empty(),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:653:17
[INFO] [stderr]     |
[INFO] [stderr] 653 |                 Cards::empty(),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:663:17
[INFO] [stderr]     |
[INFO] [stderr] 663 |                 Cards::empty(),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:673:17
[INFO] [stderr]     |
[INFO] [stderr] 673 |                 Cards::empty(),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:683:17
[INFO] [stderr]     |
[INFO] [stderr] 683 |                 Cards::empty(),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:697:17
[INFO] [stderr]     |
[INFO] [stderr] 697 |                 Cards::parse("2C"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:707:17
[INFO] [stderr]     |
[INFO] [stderr] 707 |                 Cards::parse("2C"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:717:17
[INFO] [stderr]     |
[INFO] [stderr] 717 |                 Cards::parse("2C"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:727:17
[INFO] [stderr]     |
[INFO] [stderr] 727 |                 Cards::parse("2C"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:737:17
[INFO] [stderr]     |
[INFO] [stderr] 737 |                 Cards::parse("2C"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:747:17
[INFO] [stderr]     |
[INFO] [stderr] 747 |                 Cards::parse("2C"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:761:17
[INFO] [stderr]     |
[INFO] [stderr] 761 |                 Cards::parse("7C"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:771:17
[INFO] [stderr]     |
[INFO] [stderr] 771 |                 Cards::parse("7C"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:781:17
[INFO] [stderr]     |
[INFO] [stderr] 781 |                 Cards::parse("7S"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:791:17
[INFO] [stderr]     |
[INFO] [stderr] 791 |                 Cards::parse("7S"),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<Card>`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:801:51
[INFO] [stderr]     |
[INFO] [stderr] 801 |             trick_winner(Cards::parse("A8S 96H"), Cards::parse("6H")),
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^ expected struct `Card`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `Card`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:800:9
[INFO] [stderr]     |
[INFO] [stderr] 800 | /         assert_eq!(
[INFO] [stderr] 801 | |             trick_winner(Cards::parse("A8S 96H"), Cards::parse("6H")),
[INFO] [stderr] 802 | |             Cards::parse("9H")
[INFO] [stderr] 803 | |         );
[INFO] [stderr]     | |__________^ expected struct `Card`, found struct `Cards`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `Card`
[INFO] [stderr]                found type `Cards`
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 20 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `turbot-hearts`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4a2542d4f2063f712b4c653333bdce77b4ddfff6e2e4f5680a64a8b4b348d215"`
[INFO] running `"docker" "rm" "-f" "4a2542d4f2063f712b4c653333bdce77b4ddfff6e2e4f5680a64a8b4b348d215"`
[INFO] [stdout] 4a2542d4f2063f712b4c653333bdce77b4ddfff6e2e4f5680a64a8b4b348d215