[INFO] cloning repository https://github.com/darrellp/rustbo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/darrellp/rustbo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarrellp%2Frustbo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarrellp%2Frustbo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9f2c38c2523271842385ac3fac4aeb7fdd36b59
[INFO] building darrellp/rustbo 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%2Fdarrellp%2Frustbo" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/darrellp/rustbo 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/darrellp/rustbo
[INFO] finished tweaking git repo https://github.com/darrellp/rustbo
[INFO] tweaked toml for git repo https://github.com/darrellp/rustbo written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/darrellp/rustbo 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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3c2fbc148a92e950f5d886f48b9d586bd0bc44388505c6e7a4e584d39779bd9e
[INFO] running `Command { std: "docker" "start" "-a" "3c2fbc148a92e950f5d886f48b9d586bd0bc44388505c6e7a4e584d39779bd9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c2fbc148a92e950f5d886f48b9d586bd0bc44388505c6e7a4e584d39779bd9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c2fbc148a92e950f5d886f48b9d586bd0bc44388505c6e7a4e584d39779bd9e", kill_on_drop: false }`
[INFO] [stdout] 3c2fbc148a92e950f5d886f48b9d586bd0bc44388505c6e7a4e584d39779bd9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 11f6733767814098f8763bb0050a802dbe2437b4a1633b0cd3bb9a17288fd2b3
[INFO] running `Command { std: "docker" "start" "-a" "11f6733767814098f8763bb0050a802dbe2437b4a1633b0cd3bb9a17288fd2b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.12
[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 rustbo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Ranked` and `Wild` are never constructed
[INFO] [stdout]  --> src/card.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Card {
[INFO] [stdout]   |          ---- variants in this enum
[INFO] [stdout] 3 |     Ranked(u8),
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 4 |     Wild
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Card` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CardStack` is never constructed
[INFO] [stdout]  --> src/card_stack.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) struct CardStack {
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_deck`, `new`, `len`, `pop`, `peek`, and `deal_off` are never used
[INFO] [stdout]   --> src/card_stack.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl CardStack {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new_deck() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn pop(&mut self) -> Option<Card> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn peek(&self) -> Option<Card> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn deal_off(&mut self, n: usize) -> CardStack {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/player.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) struct Player {
[INFO] [stdout]   |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `deal` is never used
[INFO] [stdout]   --> src/player.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Player {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn deal(deck: &mut CardStack, player_count: usize, index: usize) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Game` is never constructed
[INFO] [stdout]  --> src/game.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) struct Game {
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `player_count` and `new` are never used
[INFO] [stdout]   --> src/game.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Game {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn player_count(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn new(player_count: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "11f6733767814098f8763bb0050a802dbe2437b4a1633b0cd3bb9a17288fd2b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11f6733767814098f8763bb0050a802dbe2437b4a1633b0cd3bb9a17288fd2b3", kill_on_drop: false }`
[INFO] [stdout] 11f6733767814098f8763bb0050a802dbe2437b4a1633b0cd3bb9a17288fd2b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] cda4a1a713014c4eb7613a607a518d87b019f89309162eb9d430a8196f744578
[INFO] running `Command { std: "docker" "start" "-a" "cda4a1a713014c4eb7613a607a518d87b019f89309162eb9d430a8196f744578", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustbo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `new` and `pop` are never used
[INFO] [stdout]   --> src/card_stack.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl CardStack {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn pop(&mut self) -> Option<Card> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/player.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) struct Player {
[INFO] [stdout]   |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `deal` is never used
[INFO] [stdout]   --> src/player.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Player {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn deal(deck: &mut CardStack, player_count: usize, index: usize) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Game` is never constructed
[INFO] [stdout]  --> src/game.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) struct Game {
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `player_count` and `new` are never used
[INFO] [stdout]   --> src/game.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Game {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn player_count(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn new(player_count: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "cda4a1a713014c4eb7613a607a518d87b019f89309162eb9d430a8196f744578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cda4a1a713014c4eb7613a607a518d87b019f89309162eb9d430a8196f744578", kill_on_drop: false }`
[INFO] [stdout] cda4a1a713014c4eb7613a607a518d87b019f89309162eb9d430a8196f744578