[INFO] cloning repository https://github.com/dannydenenberg/cards
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dannydenenberg/cards" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannydenenberg%2Fcards", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannydenenberg%2Fcards'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9dab1a9b5b9ba9eb4ee3da65a78099aa57cf6636
[INFO] checking dannydenenberg/cards against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannydenenberg%2Fcards" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dannydenenberg/cards on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dannydenenberg/cards
[INFO] finished tweaking git repo https://github.com/dannydenenberg/cards
[INFO] tweaked toml for git repo https://github.com/dannydenenberg/cards written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dannydenenberg/cards already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d586800d0884e0596b198c74e05336d457c49633cbd48e9f4c683e43dcc85ff3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d586800d0884e0596b198c74e05336d457c49633cbd48e9f4c683e43dcc85ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d586800d0884e0596b198c74e05336d457c49633cbd48e9f4c683e43dcc85ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d586800d0884e0596b198c74e05336d457c49633cbd48e9f4c683e43dcc85ff3", kill_on_drop: false }`
[INFO] [stdout] d586800d0884e0596b198c74e05336d457c49633cbd48e9f4c683e43dcc85ff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a2f12fbc9b8a9425d5106c30f12f6d0db36550b7d9e1caec2cef1b9b400d3cc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4a2f12fbc9b8a9425d5106c30f12f6d0db36550b7d9e1caec2cef1b9b400d3cc", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking termion v1.5.2
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking cards v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/play.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deck`
[INFO] [stdout]   --> src/main.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::play::{Player, Deck};
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/play.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deck`
[INFO] [stdout]   --> src/main.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::play::{Player, Deck};
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/play.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 _ => (),
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/play.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 _ => "".to_string(), // won't reach this statement, but the compiler doesn't know that
[INFO] [stdout]     |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Err(x) => (),
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `blank`
[INFO] [stdout]    --> src/art.rs:97:1
[INFO] [stdout]     |
[INFO] [stdout] 97  | / pub const blank: &str = r"
[INFO] [stdout] 98  | |     ┌─────────┐
[INFO] [stdout] 99  | |     │░░░░░░░░░│
[INFO] [stdout] 100 | |     │░░░░░░░░░│
[INFO] [stdout] ...   |
[INFO] [stdout] 106 | |     └─────────┘
[INFO] [stdout] 107 | | ";
[INFO] [stdout]     | |__^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `art`
[INFO] [stdout]    --> src/art.rs:114:1
[INFO] [stdout]     |
[INFO] [stdout] 114 | / pub const art: &str = r"
[INFO] [stdout] 115 | |     ┌─────────┐
[INFO] [stdout] 116 | |     │░░░░░░░░░│
[INFO] [stdout] 117 | |     │░░░░░░░░░│
[INFO] [stdout] ...   |
[INFO] [stdout] 163 | |     └─────────┘
[INFO] [stdout] 164 | | ";
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `heart` should have an upper case name
[INFO] [stdout]  --> src/art.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const heart: &str = r"
[INFO] [stdout]   |           ^^^^^ help: convert the identifier to upper case: `HEART`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `club` should have an upper case name
[INFO] [stdout]   --> src/art.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub const club: &str = r"
[INFO] [stdout]    |           ^^^^ help: convert the identifier to upper case: `CLUB`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `diamond` should have an upper case name
[INFO] [stdout]   --> src/art.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub const diamond: &str = r"
[INFO] [stdout]    |           ^^^^^^^ help: convert the identifier to upper case: `DIAMOND`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `spade` should have an upper case name
[INFO] [stdout]   --> src/art.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub const spade: &str = r"
[INFO] [stdout]    |           ^^^^^ help: convert the identifier to upper case: `SPADE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `heart10` should have an upper case name
[INFO] [stdout]   --> src/art.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub const heart10: &str = r"
[INFO] [stdout]    |           ^^^^^^^ help: convert the identifier to upper case: `HEART10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `club10` should have an upper case name
[INFO] [stdout]   --> src/art.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub const club10: &str = r"
[INFO] [stdout]    |           ^^^^^^ help: convert the identifier to upper case: `CLUB10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `diamond10` should have an upper case name
[INFO] [stdout]   --> src/art.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub const diamond10: &str = r"
[INFO] [stdout]    |           ^^^^^^^^^ help: convert the identifier to upper case: `DIAMOND10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `spade10` should have an upper case name
[INFO] [stdout]   --> src/art.rs:85:11
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub const spade10: &str = r"
[INFO] [stdout]    |           ^^^^^^^ help: convert the identifier to upper case: `SPADE10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `blank` should have an upper case name
[INFO] [stdout]   --> src/art.rs:97:11
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub const blank: &str = r"
[INFO] [stdout]    |           ^^^^^ help: convert the identifier to upper case: `BLANK`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `art` should have an upper case name
[INFO] [stdout]    --> src/art.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub const art: &str = r"
[INFO] [stdout]     |           ^^^ help: convert the identifier to upper case: `ART`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/play.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 _ => (),
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/play.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 _ => "".to_string(), // won't reach this statement, but the compiler doesn't know that
[INFO] [stdout]     |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Err(x) => (),
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `blank`
[INFO] [stdout]    --> src/art.rs:97:1
[INFO] [stdout]     |
[INFO] [stdout] 97  | / pub const blank: &str = r"
[INFO] [stdout] 98  | |     ┌─────────┐
[INFO] [stdout] 99  | |     │░░░░░░░░░│
[INFO] [stdout] 100 | |     │░░░░░░░░░│
[INFO] [stdout] ...   |
[INFO] [stdout] 106 | |     └─────────┘
[INFO] [stdout] 107 | | ";
[INFO] [stdout]     | |__^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `art`
[INFO] [stdout]    --> src/art.rs:114:1
[INFO] [stdout]     |
[INFO] [stdout] 114 | / pub const art: &str = r"
[INFO] [stdout] 115 | |     ┌─────────┐
[INFO] [stdout] 116 | |     │░░░░░░░░░│
[INFO] [stdout] 117 | |     │░░░░░░░░░│
[INFO] [stdout] ...   |
[INFO] [stdout] 163 | |     └─────────┘
[INFO] [stdout] 164 | | ";
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `heart` should have an upper case name
[INFO] [stdout]  --> src/art.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const heart: &str = r"
[INFO] [stdout]   |           ^^^^^ help: convert the identifier to upper case: `HEART`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `club` should have an upper case name
[INFO] [stdout]   --> src/art.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub const club: &str = r"
[INFO] [stdout]    |           ^^^^ help: convert the identifier to upper case: `CLUB`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `diamond` should have an upper case name
[INFO] [stdout]   --> src/art.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub const diamond: &str = r"
[INFO] [stdout]    |           ^^^^^^^ help: convert the identifier to upper case: `DIAMOND`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `spade` should have an upper case name
[INFO] [stdout]   --> src/art.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub const spade: &str = r"
[INFO] [stdout]    |           ^^^^^ help: convert the identifier to upper case: `SPADE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `heart10` should have an upper case name
[INFO] [stdout]   --> src/art.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub const heart10: &str = r"
[INFO] [stdout]    |           ^^^^^^^ help: convert the identifier to upper case: `HEART10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `club10` should have an upper case name
[INFO] [stdout]   --> src/art.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub const club10: &str = r"
[INFO] [stdout]    |           ^^^^^^ help: convert the identifier to upper case: `CLUB10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `diamond10` should have an upper case name
[INFO] [stdout]   --> src/art.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub const diamond10: &str = r"
[INFO] [stdout]    |           ^^^^^^^^^ help: convert the identifier to upper case: `DIAMOND10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `spade10` should have an upper case name
[INFO] [stdout]   --> src/art.rs:85:11
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub const spade10: &str = r"
[INFO] [stdout]    |           ^^^^^^^ help: convert the identifier to upper case: `SPADE10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `blank` should have an upper case name
[INFO] [stdout]   --> src/art.rs:97:11
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub const blank: &str = r"
[INFO] [stdout]    |           ^^^^^ help: convert the identifier to upper case: `BLANK`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `art` should have an upper case name
[INFO] [stdout]    --> src/art.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub const art: &str = r"
[INFO] [stdout]     |           ^^^ help: convert the identifier to upper case: `ART`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.58s
[INFO] running `Command { std: "docker" "inspect" "4a2f12fbc9b8a9425d5106c30f12f6d0db36550b7d9e1caec2cef1b9b400d3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a2f12fbc9b8a9425d5106c30f12f6d0db36550b7d9e1caec2cef1b9b400d3cc", kill_on_drop: false }`
[INFO] [stdout] 4a2f12fbc9b8a9425d5106c30f12f6d0db36550b7d9e1caec2cef1b9b400d3cc