[INFO] cloning repository https://github.com/chrismerck/fifty-two-alpha
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrismerck/fifty-two-alpha" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrismerck%2Ffifty-two-alpha", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrismerck%2Ffifty-two-alpha'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5b776ee31a69cd40c2f5e2c10e467ba95c1a94b
[INFO] building chrismerck/fifty-two-alpha against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrismerck%2Ffifty-two-alpha" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrismerck/fifty-two-alpha on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chrismerck/fifty-two-alpha
[INFO] finished tweaking git repo https://github.com/chrismerck/fifty-two-alpha
[INFO] tweaked toml for git repo https://github.com/chrismerck/fifty-two-alpha written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chrismerck/fifty-two-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56cec8e3937838252c6dd845be1b58ea5fa2c078c279e46346215111d6662648
[INFO] running `Command { std: "docker" "start" "-a" "56cec8e3937838252c6dd845be1b58ea5fa2c078c279e46346215111d6662648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56cec8e3937838252c6dd845be1b58ea5fa2c078c279e46346215111d6662648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56cec8e3937838252c6dd845be1b58ea5fa2c078c279e46346215111d6662648", kill_on_drop: false }`
[INFO] [stdout] 56cec8e3937838252c6dd845be1b58ea5fa2c078c279e46346215111d6662648
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ad88348ee426b0e8cff14011b0abd9fbf69200417f91a52666a15e6a71968e0
[INFO] running `Command { std: "docker" "start" "-a" "3ad88348ee426b0e8cff14011b0abd9fbf69200417f91a52666a15e6a71968e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling fifty-two-alpha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Suit`
[INFO] [stdout]  --> src/main.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::french::{Card, Suit, Number, Deck, Hand};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/main.rs:171:21
[INFO] [stdout]     |
[INFO] [stdout] 171 |                 for j in straight_start..=straight_end {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/main.rs:185:21
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 for j in straight_start..=straight_end {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hand`
[INFO] [stdout]    --> src/main.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 | fn my_draw_strategy(hand: &Hand) -> DrawAction {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_hand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hand`
[INFO] [stdout]    --> src/main.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |     let hand = &game.hands[0];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_hand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DrawFromDiscard` is never constructed
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum DrawAction {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] 10 |     DrawFromDeck,
[INFO] [stdout] 11 |     DrawFromDiscard,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `is_valid` are never used
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Meld {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 20 |     fn new(mut cards: Vec<Card>) -> Meld {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn is_valid(cards: &mut Vec<Card>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_meld` is never used
[INFO] [stdout]    --> src/main.rs:161:4
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn find_meld(hand: &mut Hand) -> Option<Meld> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_string` is never used
[INFO] [stdout]   --> src/french.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Card {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 71 |   pub fn from_string(s: &str) -> Card {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "3ad88348ee426b0e8cff14011b0abd9fbf69200417f91a52666a15e6a71968e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad88348ee426b0e8cff14011b0abd9fbf69200417f91a52666a15e6a71968e0", kill_on_drop: false }`
[INFO] [stdout] 3ad88348ee426b0e8cff14011b0abd9fbf69200417f91a52666a15e6a71968e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd825b37474797fc16becb96537f00da44e4a9e198bb0763fb6eef2b7e28de62
[INFO] running `Command { std: "docker" "start" "-a" "bd825b37474797fc16becb96537f00da44e4a9e198bb0763fb6eef2b7e28de62", kill_on_drop: false }`
[INFO] [stderr]    Compiling fifty-two-alpha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Suit`
[INFO] [stdout]  --> src/main.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::french::{Card, Suit, Number, Deck, Hand};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/main.rs:171:21
[INFO] [stdout]     |
[INFO] [stdout] 171 |                 for j in straight_start..=straight_end {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/main.rs:185:21
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 for j in straight_start..=straight_end {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hand`
[INFO] [stdout]    --> src/main.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 | fn my_draw_strategy(hand: &Hand) -> DrawAction {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_hand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hand`
[INFO] [stdout]    --> src/main.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |     let hand = &game.hands[0];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_hand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DrawFromDiscard` is never constructed
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum DrawAction {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] 10 |     DrawFromDeck,
[INFO] [stdout] 11 |     DrawFromDiscard,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `is_valid` are never used
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Meld {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 20 |     fn new(mut cards: Vec<Card>) -> Meld {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn is_valid(cards: &mut Vec<Card>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_meld` is never used
[INFO] [stdout]    --> src/main.rs:161:4
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn find_meld(hand: &mut Hand) -> Option<Meld> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_string` is never used
[INFO] [stdout]   --> src/french.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Card {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 71 |   pub fn from_string(s: &str) -> Card {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "bd825b37474797fc16becb96537f00da44e4a9e198bb0763fb6eef2b7e28de62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd825b37474797fc16becb96537f00da44e4a9e198bb0763fb6eef2b7e28de62", kill_on_drop: false }`
[INFO] [stdout] bd825b37474797fc16becb96537f00da44e4a9e198bb0763fb6eef2b7e28de62