[INFO] cloning repository https://github.com/kdwk/playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kdwk/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdwk%2Fplayground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdwk%2Fplayground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a233162730c9daa70485550e357d29641f65f1bb [INFO] checking kdwk/playground against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdwk%2Fplayground" "/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/kdwk/playground on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kdwk/playground [INFO] finished tweaking git repo https://github.com/kdwk/playground [INFO] tweaked toml for git repo https://github.com/kdwk/playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kdwk/playground 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded extend v1.2.0 [INFO] [stderr] Downloaded open v5.0.1 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c4733cbf8b580237cac6dbf6eb828dcf62b202b7dcf7cf9ff0214c76d8d9c1f6 [INFO] running `Command { std: "docker" "start" "-a" "c4733cbf8b580237cac6dbf6eb828dcf62b202b7dcf7cf9ff0214c76d8d9c1f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c4733cbf8b580237cac6dbf6eb828dcf62b202b7dcf7cf9ff0214c76d8d9c1f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4733cbf8b580237cac6dbf6eb828dcf62b202b7dcf7cf9ff0214c76d8d9c1f6", kill_on_drop: false }` [INFO] [stdout] c4733cbf8b580237cac6dbf6eb828dcf62b202b7dcf7cf9ff0214c76d8d9c1f6 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 44801f07352d54570774bfe22002fd58b37528c6c9a4066ce6bfda654d106e3a [INFO] running `Command { std: "docker" "start" "-a" "44801f07352d54570774bfe22002fd58b37528c6c9a4066ce6bfda654d106e3a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking option-ext v0.2.0 [INFO] [stderr] Checking pathdiff v0.2.1 [INFO] [stderr] Checking is-docker v0.2.0 [INFO] [stderr] Checking is-wsl v0.4.0 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking dirs-sys v0.4.1 [INFO] [stderr] Checking open v5.0.1 [INFO] [stderr] Compiling syn v2.0.48 [INFO] [stderr] Checking directories v5.0.1 [INFO] [stderr] Compiling extend v1.2.0 [INFO] [stderr] Checking playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `replace_first`, `replace_initial`, `remove_first`, `remove`, and `get` are never used [INFO] [stdout] --> src/recipe.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl<'a, Ingredients, Outcome> Recipe<'a, Ingredients, Outcome> { [INFO] [stdout] | --------------------------------------------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 49 | pub fn replace_first + 'a>( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 82 | pub fn replace_initial + 'a>( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 89 | pub fn remove_first(&mut self, alias: impl ToString) -> &mut Self { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn remove(&mut self, alias: impl ToString) -> &mut Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 114 | pub fn get(&self, alias: impl ToString) -> Step<'a, Outcome, Outcome> [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `replace_first`, `replace_initial`, `remove_first`, `remove`, and `get` are never used [INFO] [stdout] --> src/recipe.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl<'a, Ingredients, Outcome> Recipe<'a, Ingredients, Outcome> { [INFO] [stdout] | --------------------------------------------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 49 | pub fn replace_first + 'a>( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 82 | pub fn replace_initial + 'a>( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 89 | pub fn remove_first(&mut self, alias: impl ToString) -> &mut Self { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn remove(&mut self, alias: impl ToString) -> &mut Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 114 | pub fn get(&self, alias: impl ToString) -> Step<'a, Outcome, Outcome> [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.92s [INFO] running `Command { std: "docker" "inspect" "44801f07352d54570774bfe22002fd58b37528c6c9a4066ce6bfda654d106e3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44801f07352d54570774bfe22002fd58b37528c6c9a4066ce6bfda654d106e3a", kill_on_drop: false }` [INFO] [stdout] 44801f07352d54570774bfe22002fd58b37528c6c9a4066ce6bfda654d106e3a [INFO] checking kdwk/playground against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdwk%2Fplayground" "/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/kdwk/playground on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kdwk/playground [INFO] finished tweaking git repo https://github.com/kdwk/playground [INFO] tweaked toml for git repo https://github.com/kdwk/playground written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/kdwk/playground 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c93122f3520e505f571b963e111b046a9b33eb9b94a0eed64e6d62bc7e49eb0f [INFO] running `Command { std: "docker" "start" "-a" "c93122f3520e505f571b963e111b046a9b33eb9b94a0eed64e6d62bc7e49eb0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c93122f3520e505f571b963e111b046a9b33eb9b94a0eed64e6d62bc7e49eb0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c93122f3520e505f571b963e111b046a9b33eb9b94a0eed64e6d62bc7e49eb0f", kill_on_drop: false }` [INFO] [stdout] c93122f3520e505f571b963e111b046a9b33eb9b94a0eed64e6d62bc7e49eb0f [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 646c34e5e049fada056efe671ef0cbce35fd97fdc77ee8130bf5ae8bd9d8670a [INFO] running `Command { std: "docker" "start" "-a" "646c34e5e049fada056efe671ef0cbce35fd97fdc77ee8130bf5ae8bd9d8670a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking option-ext v0.2.0 [INFO] [stderr] Checking pathdiff v0.2.1 [INFO] [stderr] Checking is-docker v0.2.0 [INFO] [stderr] Checking is-wsl v0.4.0 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.48 [INFO] [stderr] Checking dirs-sys v0.4.1 [INFO] [stderr] Checking open v5.0.1 [INFO] [stderr] Checking directories v5.0.1 [INFO] [stderr] Compiling extend v1.2.0 [INFO] [stderr] Checking playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/main.rs:229:9 [INFO] [stdout] | [INFO] [stdout] 229 | None?; [INFO] [stdout] | ^^^^ cannot infer type of the type parameter `T` declared on the enum `Option` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic argument [INFO] [stdout] | [INFO] [stdout] 229 | None::?; [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/main.rs:229:9 [INFO] [stdout] | [INFO] [stdout] 229 | None?; [INFO] [stdout] | ^^^^ cannot infer type of the type parameter `T` declared on the enum `Option` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic argument [INFO] [stdout] | [INFO] [stdout] 229 | None::?; [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `playground` (bin "playground") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `playground` (bin "playground" test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "646c34e5e049fada056efe671ef0cbce35fd97fdc77ee8130bf5ae8bd9d8670a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "646c34e5e049fada056efe671ef0cbce35fd97fdc77ee8130bf5ae8bd9d8670a", kill_on_drop: false }` [INFO] [stdout] 646c34e5e049fada056efe671ef0cbce35fd97fdc77ee8130bf5ae8bd9d8670a