[INFO] cloning repository https://github.com/QuarkNerd/Rust_Noughts_-_Crosses [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/QuarkNerd/Rust_Noughts_-_Crosses" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuarkNerd%2FRust_Noughts_-_Crosses", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuarkNerd%2FRust_Noughts_-_Crosses'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f53c1bfad82ec029705eb61cbe805456c140a76b [INFO] checking QuarkNerd/Rust_Noughts_-_Crosses against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuarkNerd%2FRust_Noughts_-_Crosses" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/QuarkNerd/Rust_Noughts_-_Crosses 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/QuarkNerd/Rust_Noughts_-_Crosses [INFO] finished tweaking git repo https://github.com/QuarkNerd/Rust_Noughts_-_Crosses [INFO] tweaked toml for git repo https://github.com/QuarkNerd/Rust_Noughts_-_Crosses written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/QuarkNerd/Rust_Noughts_-_Crosses 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded quote v1.0.6 [INFO] [stderr] Downloaded serde_json v1.0.53 [INFO] [stderr] Downloaded syn v1.0.30 [INFO] [stderr] Downloaded libc v0.2.70 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d738a0dd942f8906b769f12a701be8ccf66fa8094d475736eb42cd49a7a09c64 [INFO] running `Command { std: "docker" "start" "-a" "d738a0dd942f8906b769f12a701be8ccf66fa8094d475736eb42cd49a7a09c64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d738a0dd942f8906b769f12a701be8ccf66fa8094d475736eb42cd49a7a09c64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d738a0dd942f8906b769f12a701be8ccf66fa8094d475736eb42cd49a7a09c64", kill_on_drop: false }` [INFO] [stdout] d738a0dd942f8906b769f12a701be8ccf66fa8094d475736eb42cd49a7a09c64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4e856b76849d2a99301f682395ee8d2069cd80c160d36671215f0aa44859d77c [INFO] running `Command { std: "docker" "start" "-a" "4e856b76849d2a99301f682395ee8d2069cd80c160d36671215f0aa44859d77c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling libc v0.2.70 [INFO] [stderr] Compiling syn v1.0.30 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling serde v1.0.111 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.111 [INFO] [stderr] Checking serde_json v1.0.53 [INFO] [stderr] Checking tictactoe v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/utilities.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | file.write_all(string.as_bytes()); // as bytes converts it to byte array [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 37 | let _ = file.write_all(string.as_bytes()); // as bytes converts it to byte array [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/menu.rs:29:34 [INFO] [stdout] | [INFO] [stdout] 29 | command: self.command.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/menu.rs:30:42 [INFO] [stdout] | [INFO] [stdout] 30 | description: self.description.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/utilities.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | file.write_all(string.as_bytes()); // as bytes converts it to byte array [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 37 | let _ = file.write_all(string.as_bytes()); // as bytes converts it to byte array [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/menu.rs:29:34 [INFO] [stdout] | [INFO] [stdout] 29 | command: self.command.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/menu.rs:30:42 [INFO] [stdout] | [INFO] [stdout] 30 | description: self.description.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [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 15.86s [INFO] running `Command { std: "docker" "inspect" "4e856b76849d2a99301f682395ee8d2069cd80c160d36671215f0aa44859d77c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e856b76849d2a99301f682395ee8d2069cd80c160d36671215f0aa44859d77c", kill_on_drop: false }` [INFO] [stdout] 4e856b76849d2a99301f682395ee8d2069cd80c160d36671215f0aa44859d77c [INFO] checking QuarkNerd/Rust_Noughts_-_Crosses against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuarkNerd%2FRust_Noughts_-_Crosses" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/QuarkNerd/Rust_Noughts_-_Crosses 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/QuarkNerd/Rust_Noughts_-_Crosses [INFO] finished tweaking git repo https://github.com/QuarkNerd/Rust_Noughts_-_Crosses [INFO] tweaked toml for git repo https://github.com/QuarkNerd/Rust_Noughts_-_Crosses written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/QuarkNerd/Rust_Noughts_-_Crosses 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2018fc440483aa8819aa46e4b71ad52d1409ba19fafcb29ca00db23828d1e2de [INFO] running `Command { std: "docker" "start" "-a" "2018fc440483aa8819aa46e4b71ad52d1409ba19fafcb29ca00db23828d1e2de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2018fc440483aa8819aa46e4b71ad52d1409ba19fafcb29ca00db23828d1e2de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2018fc440483aa8819aa46e4b71ad52d1409ba19fafcb29ca00db23828d1e2de", kill_on_drop: false }` [INFO] [stdout] 2018fc440483aa8819aa46e4b71ad52d1409ba19fafcb29ca00db23828d1e2de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 19c534000830badb52825c8ff4b4d78e7024cd14a84428244312fea1703dd880 [INFO] running `Command { std: "docker" "start" "-a" "19c534000830badb52825c8ff4b4d78e7024cd14a84428244312fea1703dd880", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling libc v0.2.70 [INFO] [stderr] Compiling syn v1.0.30 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling serde v1.0.111 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.111 [INFO] [stderr] Checking serde_json v1.0.53 [INFO] [stderr] Checking tictactoe v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/utilities.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | file.write_all(string.as_bytes()); // as bytes converts it to byte array [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 37 | let _ = file.write_all(string.as_bytes()); // as bytes converts it to byte array [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/menu.rs:29:34 [INFO] [stdout] | [INFO] [stdout] 29 | command: self.command.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/menu.rs:30:42 [INFO] [stdout] | [INFO] [stdout] 30 | description: self.description.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/utilities.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | file.write_all(string.as_bytes()); // as bytes converts it to byte array [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 37 | let _ = file.write_all(string.as_bytes()); // as bytes converts it to byte array [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/menu.rs:29:34 [INFO] [stdout] | [INFO] [stdout] 29 | command: self.command.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/menu.rs:30:42 [INFO] [stdout] | [INFO] [stdout] 30 | description: self.description.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.54s [INFO] running `Command { std: "docker" "inspect" "19c534000830badb52825c8ff4b4d78e7024cd14a84428244312fea1703dd880", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19c534000830badb52825c8ff4b4d78e7024cd14a84428244312fea1703dd880", kill_on_drop: false }` [INFO] [stdout] 19c534000830badb52825c8ff4b4d78e7024cd14a84428244312fea1703dd880