[INFO] cloning repository https://github.com/wlim33/rust-spades [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wlim33/rust-spades" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlim33%2Frust-spades", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlim33%2Frust-spades'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b4428e3d85a0ee64b70493cc89dcb5fcc95de423 [INFO] checking wlim33/rust-spades against master#9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9 for pr-124108 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlim33%2Frust-spades" "/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/wlim33/rust-spades on toolchain 9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wlim33/rust-spades [INFO] finished tweaking git repo https://github.com/wlim33/rust-spades [INFO] tweaked toml for git repo https://github.com/wlim33/rust-spades written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/wlim33/rust-spades 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" "+9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking wlim33/rust-spades against try#2e5b7739e5167b731ad5eb628f04a54f932f1fe2 for pr-124108 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlim33%2Frust-spades" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wlim33/rust-spades on toolchain 2e5b7739e5167b731ad5eb628f04a54f932f1fe2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wlim33/rust-spades [INFO] finished tweaking git repo https://github.com/wlim33/rust-spades [INFO] tweaked toml for git repo https://github.com/wlim33/rust-spades written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/wlim33/rust-spades 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" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand v0.5.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 56fa6a2e2b4b58b396d786cf8f88789d71583b1657d9dbe7b2e6128667f584d3 [INFO] running `Command { std: "docker" "start" "-a" "56fa6a2e2b4b58b396d786cf8f88789d71583b1657d9dbe7b2e6128667f584d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56fa6a2e2b4b58b396d786cf8f88789d71583b1657d9dbe7b2e6128667f584d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56fa6a2e2b4b58b396d786cf8f88789d71583b1657d9dbe7b2e6128667f584d3", kill_on_drop: false }` [INFO] [stdout] 56fa6a2e2b4b58b396d786cf8f88789d71583b1657d9dbe7b2e6128667f584d3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8d40bd915fa6325b14f4880acc29aeeb656c9a132e05ee52fbf8c14de68208fb [INFO] running `Command { std: "docker" "start" "-a" "8d40bd915fa6325b14f4880acc29aeeb656c9a132e05ee52fbf8c14de68208fb", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Checking rand_core v0.2.1 [INFO] [stderr] Checking cfg-if v0.1.4 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking rand v0.5.3 [INFO] [stderr] Checking uuid v0.6.5 [INFO] [stderr] Checking spades v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/result.rs:76:32 [INFO] [stdout] | [INFO] [stdout] 76 | fn cause(&self) -> Option<&Error> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 76 | fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/result.rs:76:32 [INFO] [stdout] | [INFO] [stdout] 76 | fn cause(&self) -> Option<&Error> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 76 | fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `bets_placed` is never read [INFO] [stdout] --> src/lib.rs:86:5 [INFO] [stdout] | [INFO] [stdout] 79 | pub struct Game { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 86 | bets_placed: Vec<[i32; 4]>, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Game` has a derived impl for the trait `Debug`, 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: unused borrow that must be used [INFO] [stdout] --> src/cards.rs:179:9 [INFO] [stdout] | [INFO] [stdout] 179 | &hands[i].push(cards.pop().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 179 | let _ = &hands[i].push(cards.pop().unwrap()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `bets_placed` is never read [INFO] [stdout] --> src/lib.rs:86:5 [INFO] [stdout] | [INFO] [stdout] 79 | pub struct Game { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 86 | bets_placed: Vec<[i32; 4]>, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Game` has a derived impl for the trait `Debug`, 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: unused borrow that must be used [INFO] [stdout] --> src/cards.rs:179:9 [INFO] [stdout] | [INFO] [stdout] 179 | &hands[i].push(cards.pop().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 179 | let _ = &hands[i].push(cards.pop().unwrap()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.60s [INFO] running `Command { std: "docker" "inspect" "8d40bd915fa6325b14f4880acc29aeeb656c9a132e05ee52fbf8c14de68208fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d40bd915fa6325b14f4880acc29aeeb656c9a132e05ee52fbf8c14de68208fb", kill_on_drop: false }` [INFO] [stdout] 8d40bd915fa6325b14f4880acc29aeeb656c9a132e05ee52fbf8c14de68208fb