[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#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlim33%2Frust-spades" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wlim33/rust-spades on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 215a1d4c75ca618bb61dbe1c1cfd68ce1311ba3e39daddf2ce73afcd17b348a0 [INFO] running `Command { std: "docker" "start" "-a" "215a1d4c75ca618bb61dbe1c1cfd68ce1311ba3e39daddf2ce73afcd17b348a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "215a1d4c75ca618bb61dbe1c1cfd68ce1311ba3e39daddf2ce73afcd17b348a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "215a1d4c75ca618bb61dbe1c1cfd68ce1311ba3e39daddf2ce73afcd17b348a0", kill_on_drop: false }` [INFO] [stdout] 215a1d4c75ca618bb61dbe1c1cfd68ce1311ba3e39daddf2ce73afcd17b348a0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d5e9dc6c5f1051f04535ab22aadb6c22fc3507c4a49eaeed9f757ecb0a206261 [INFO] running `Command { std: "docker" "start" "-a" "d5e9dc6c5f1051f04535ab22aadb6c22fc3507c4a49eaeed9f757ecb0a206261", 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: 3 warnings emitted [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s [INFO] running `Command { std: "docker" "inspect" "d5e9dc6c5f1051f04535ab22aadb6c22fc3507c4a49eaeed9f757ecb0a206261", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5e9dc6c5f1051f04535ab22aadb6c22fc3507c4a49eaeed9f757ecb0a206261", kill_on_drop: false }` [INFO] [stdout] d5e9dc6c5f1051f04535ab22aadb6c22fc3507c4a49eaeed9f757ecb0a206261 [INFO] checking wlim33/rust-spades against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlim33%2Frust-spades" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wlim33/rust-spades on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-6-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9730abbe507d1f54c67e9a8aaeac6754e2996c375f3524660e23564931dcb486 [INFO] running `Command { std: "docker" "start" "-a" "9730abbe507d1f54c67e9a8aaeac6754e2996c375f3524660e23564931dcb486", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9730abbe507d1f54c67e9a8aaeac6754e2996c375f3524660e23564931dcb486", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9730abbe507d1f54c67e9a8aaeac6754e2996c375f3524660e23564931dcb486", kill_on_drop: false }` [INFO] [stdout] 9730abbe507d1f54c67e9a8aaeac6754e2996c375f3524660e23564931dcb486 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 93c840885a81803187e6dd7be770da4ea69d860215d509a4637a19d1569c5abc [INFO] running `Command { std: "docker" "start" "-a" "93c840885a81803187e6dd7be770da4ea69d860215d509a4637a19d1569c5abc", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Checking cfg-if v0.1.4 [INFO] [stderr] Checking rand_core v0.2.1 [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: 3 warnings emitted [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.75s [INFO] running `Command { std: "docker" "inspect" "93c840885a81803187e6dd7be770da4ea69d860215d509a4637a19d1569c5abc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "93c840885a81803187e6dd7be770da4ea69d860215d509a4637a19d1569c5abc", kill_on_drop: false }` [INFO] [stdout] 93c840885a81803187e6dd7be770da4ea69d860215d509a4637a19d1569c5abc