[INFO] updating cached repository dannydenenberg/cards
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dannydenenberg/cards
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dannydenenberg/cards" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/dannydenenberg/cards"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/dannydenenberg/cards'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dannydenenberg/cards" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/dannydenenberg/cards"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/dannydenenberg/cards'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9dab1a9b5b9ba9eb4ee3da65a78099aa57cf6636
[INFO] sha for GitHub repo dannydenenberg/cards: 9dab1a9b5b9ba9eb4ee3da65a78099aa57cf6636
[INFO] validating manifest of dannydenenberg/cards on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dannydenenberg/cards on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dannydenenberg/cards
[INFO] finished frobbing dannydenenberg/cards
[INFO] frobbed toml for dannydenenberg/cards written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/dannydenenberg/cards/Cargo.toml
[INFO] started frobbing dannydenenberg/cards
[INFO] finished frobbing dannydenenberg/cards
[INFO] frobbed toml for dannydenenberg/cards written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/dannydenenberg/cards/Cargo.toml
[INFO] crate dannydenenberg/cards already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking dannydenenberg/cards against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-6/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/dannydenenberg/cards:/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=forbid" "-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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e2ec3e3db80e56388cf3549d519c9338c9135e40be89135623c69f88136a9dc6
[INFO] running `"docker" "start" "-a" "e2ec3e3db80e56388cf3549d519c9338c9135e40be89135623c69f88136a9dc6"`
[INFO] [stderr]     Checking termion v1.5.2
[INFO] [stderr]     Checking cards v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `thread_rng`
[INFO] [stderr]  --> src/play.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Deck`
[INFO] [stderr]   --> src/main.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::play::{Player, Deck};
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/play.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 _ => (),
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/play.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 _ => "".to_string(), // won't reach this statement, but the compiler doesn't know that
[INFO] [stderr]     |                 ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |             Err(x) => (),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `thread_rng`
[INFO] [stderr]  --> src/play.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Deck`
[INFO] [stderr]   --> src/main.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::play::{Player, Deck};
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `blank`
[INFO] [stderr]    --> src/art.rs:97:1
[INFO] [stderr]     |
[INFO] [stderr] 97  | / pub const blank: &str = r"
[INFO] [stderr] 98  | |     ┌─────────┐
[INFO] [stderr] 99  | |     │░░░░░░░░░│
[INFO] [stderr] 100 | |     │░░░░░░░░░│
[INFO] [stderr] ...   |
[INFO] [stderr] 106 | |     └─────────┘
[INFO] [stderr] 107 | | ";
[INFO] [stderr]     | |__^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `art`
[INFO] [stderr]    --> src/art.rs:114:1
[INFO] [stderr]     |
[INFO] [stderr] 114 | / pub const art: &str = r"
[INFO] [stderr] 115 | |     ┌─────────┐
[INFO] [stderr] 116 | |     │░░░░░░░░░│
[INFO] [stderr] 117 | |     │░░░░░░░░░│
[INFO] [stderr] ...   |
[INFO] [stderr] 163 | |     └─────────┘
[INFO] [stderr] 164 | | ";
[INFO] [stderr]     | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `heart` should have an upper case name
[INFO] [stderr]  --> src/art.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub const heart: &str = r"
[INFO] [stderr]   |           ^^^^^ help: convert the identifier to upper case: `HEART`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `club` should have an upper case name
[INFO] [stderr]   --> src/art.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const club: &str = r"
[INFO] [stderr]    |           ^^^^ help: convert the identifier to upper case: `CLUB`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `diamond` should have an upper case name
[INFO] [stderr]   --> src/art.rs:26:11
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub const diamond: &str = r"
[INFO] [stderr]    |           ^^^^^^^ help: convert the identifier to upper case: `DIAMOND`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `spade` should have an upper case name
[INFO] [stderr]   --> src/art.rs:37:11
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub const spade: &str = r"
[INFO] [stderr]    |           ^^^^^ help: convert the identifier to upper case: `SPADE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `heart10` should have an upper case name
[INFO] [stderr]   --> src/art.rs:50:11
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub const heart10: &str = r"
[INFO] [stderr]    |           ^^^^^^^ help: convert the identifier to upper case: `HEART10`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `club10` should have an upper case name
[INFO] [stderr]   --> src/art.rs:62:11
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub const club10: &str = r"
[INFO] [stderr]    |           ^^^^^^ help: convert the identifier to upper case: `CLUB10`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `diamond10` should have an upper case name
[INFO] [stderr]   --> src/art.rs:74:11
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub const diamond10: &str = r"
[INFO] [stderr]    |           ^^^^^^^^^ help: convert the identifier to upper case: `DIAMOND10`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `spade10` should have an upper case name
[INFO] [stderr]   --> src/art.rs:85:11
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub const spade10: &str = r"
[INFO] [stderr]    |           ^^^^^^^ help: convert the identifier to upper case: `SPADE10`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `blank` should have an upper case name
[INFO] [stderr]   --> src/art.rs:97:11
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub const blank: &str = r"
[INFO] [stderr]    |           ^^^^^ help: convert the identifier to upper case: `BLANK`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `art` should have an upper case name
[INFO] [stderr]    --> src/art.rs:114:11
[INFO] [stderr]     |
[INFO] [stderr] 114 | pub const art: &str = r"
[INFO] [stderr]     |           ^^^ help: convert the identifier to upper case: `ART`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/play.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 _ => (),
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/play.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 _ => "".to_string(), // won't reach this statement, but the compiler doesn't know that
[INFO] [stderr]     |                 ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |             Err(x) => (),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `blank`
[INFO] [stderr]    --> src/art.rs:97:1
[INFO] [stderr]     |
[INFO] [stderr] 97  | / pub const blank: &str = r"
[INFO] [stderr] 98  | |     ┌─────────┐
[INFO] [stderr] 99  | |     │░░░░░░░░░│
[INFO] [stderr] 100 | |     │░░░░░░░░░│
[INFO] [stderr] ...   |
[INFO] [stderr] 106 | |     └─────────┘
[INFO] [stderr] 107 | | ";
[INFO] [stderr]     | |__^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `art`
[INFO] [stderr]    --> src/art.rs:114:1
[INFO] [stderr]     |
[INFO] [stderr] 114 | / pub const art: &str = r"
[INFO] [stderr] 115 | |     ┌─────────┐
[INFO] [stderr] 116 | |     │░░░░░░░░░│
[INFO] [stderr] 117 | |     │░░░░░░░░░│
[INFO] [stderr] ...   |
[INFO] [stderr] 163 | |     └─────────┘
[INFO] [stderr] 164 | | ";
[INFO] [stderr]     | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `heart` should have an upper case name
[INFO] [stderr]  --> src/art.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub const heart: &str = r"
[INFO] [stderr]   |           ^^^^^ help: convert the identifier to upper case: `HEART`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `club` should have an upper case name
[INFO] [stderr]   --> src/art.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const club: &str = r"
[INFO] [stderr]    |           ^^^^ help: convert the identifier to upper case: `CLUB`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `diamond` should have an upper case name
[INFO] [stderr]   --> src/art.rs:26:11
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub const diamond: &str = r"
[INFO] [stderr]    |           ^^^^^^^ help: convert the identifier to upper case: `DIAMOND`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `spade` should have an upper case name
[INFO] [stderr]   --> src/art.rs:37:11
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub const spade: &str = r"
[INFO] [stderr]    |           ^^^^^ help: convert the identifier to upper case: `SPADE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `heart10` should have an upper case name
[INFO] [stderr]   --> src/art.rs:50:11
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub const heart10: &str = r"
[INFO] [stderr]    |           ^^^^^^^ help: convert the identifier to upper case: `HEART10`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `club10` should have an upper case name
[INFO] [stderr]   --> src/art.rs:62:11
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub const club10: &str = r"
[INFO] [stderr]    |           ^^^^^^ help: convert the identifier to upper case: `CLUB10`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `diamond10` should have an upper case name
[INFO] [stderr]   --> src/art.rs:74:11
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub const diamond10: &str = r"
[INFO] [stderr]    |           ^^^^^^^^^ help: convert the identifier to upper case: `DIAMOND10`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `spade10` should have an upper case name
[INFO] [stderr]   --> src/art.rs:85:11
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub const spade10: &str = r"
[INFO] [stderr]    |           ^^^^^^^ help: convert the identifier to upper case: `SPADE10`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `blank` should have an upper case name
[INFO] [stderr]   --> src/art.rs:97:11
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub const blank: &str = r"
[INFO] [stderr]    |           ^^^^^ help: convert the identifier to upper case: `BLANK`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `art` should have an upper case name
[INFO] [stderr]    --> src/art.rs:114:11
[INFO] [stderr]     |
[INFO] [stderr] 114 | pub const art: &str = r"
[INFO] [stderr]     |           ^^^ help: convert the identifier to upper case: `ART`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `"docker" "inspect" "e2ec3e3db80e56388cf3549d519c9338c9135e40be89135623c69f88136a9dc6"`
[INFO] running `"docker" "rm" "-f" "e2ec3e3db80e56388cf3549d519c9338c9135e40be89135623c69f88136a9dc6"`
[INFO] [stdout] e2ec3e3db80e56388cf3549d519c9338c9135e40be89135623c69f88136a9dc6