[INFO] cloning repository https://github.com/slogan621/dining_philosophers [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slogan621/dining_philosophers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslogan621%2Fdining_philosophers", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslogan621%2Fdining_philosophers'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 976ade95abfd996361e4fcc9b7add9594ca6a4b2 [INFO] checking slogan621/dining_philosophers against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslogan621%2Fdining_philosophers" "/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/slogan621/dining_philosophers 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/slogan621/dining_philosophers [INFO] finished tweaking git repo https://github.com/slogan621/dining_philosophers [INFO] tweaked toml for git repo https://github.com/slogan621/dining_philosophers written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/slogan621/dining_philosophers 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] 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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e6285d3a607573cf193f4a203b16a9cf8c509983588ca60e5b5b905c03a6e7cd [INFO] running `Command { std: "docker" "start" "-a" "e6285d3a607573cf193f4a203b16a9cf8c509983588ca60e5b5b905c03a6e7cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e6285d3a607573cf193f4a203b16a9cf8c509983588ca60e5b5b905c03a6e7cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6285d3a607573cf193f4a203b16a9cf8c509983588ca60e5b5b905c03a6e7cd", kill_on_drop: false }` [INFO] [stdout] e6285d3a607573cf193f4a203b16a9cf8c509983588ca60e5b5b905c03a6e7cd [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" "-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] 56a476c39ea5986022e9d6ce1dc8e9487168a630e8ea12542685b5454dee94b2 [INFO] running `Command { std: "docker" "start" "-a" "56a476c39ea5986022e9d6ce1dc8e9487168a630e8ea12542685b5454dee94b2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Checking tokio v1.36.0 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.48 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking dining-philos v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary allocation, use `&mut` instead [INFO] [stdout] --> src/main.rs:109:36 [INFO] [stdout] | [INFO] [stdout] 109 | let _critical_region_mtx = Box::new(self.critical_region_mtx.lock().unwrap()).as_mut(); // enter critical region [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_allocation)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary allocation, use `&mut` instead [INFO] [stdout] --> src/main.rs:140:36 [INFO] [stdout] | [INFO] [stdout] 140 | let _critical_region_mtx = Box::new(self.critical_region_mtx.lock().unwrap()).as_mut(); // enter critical region [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary allocation, use `&mut` instead [INFO] [stdout] --> src/main.rs:109:36 [INFO] [stdout] | [INFO] [stdout] 109 | let _critical_region_mtx = Box::new(self.critical_region_mtx.lock().unwrap()).as_mut(); // enter critical region [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_allocation)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary allocation, use `&mut` instead [INFO] [stdout] --> src/main.rs:140:36 [INFO] [stdout] | [INFO] [stdout] 140 | let _critical_region_mtx = Box::new(self.critical_region_mtx.lock().unwrap()).as_mut(); // enter critical region [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.80s [INFO] running `Command { std: "docker" "inspect" "56a476c39ea5986022e9d6ce1dc8e9487168a630e8ea12542685b5454dee94b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56a476c39ea5986022e9d6ce1dc8e9487168a630e8ea12542685b5454dee94b2", kill_on_drop: false }` [INFO] [stdout] 56a476c39ea5986022e9d6ce1dc8e9487168a630e8ea12542685b5454dee94b2 [INFO] checking slogan621/dining_philosophers against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslogan621%2Fdining_philosophers" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/slogan621/dining_philosophers 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/slogan621/dining_philosophers [INFO] finished tweaking git repo https://github.com/slogan621/dining_philosophers [INFO] tweaked toml for git repo https://github.com/slogan621/dining_philosophers written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/slogan621/dining_philosophers 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 12556524be646f147efa37f09242dc5c94491b444a07bbc77bb3b8e61d3abe27 [INFO] running `Command { std: "docker" "start" "-a" "12556524be646f147efa37f09242dc5c94491b444a07bbc77bb3b8e61d3abe27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "12556524be646f147efa37f09242dc5c94491b444a07bbc77bb3b8e61d3abe27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12556524be646f147efa37f09242dc5c94491b444a07bbc77bb3b8e61d3abe27", kill_on_drop: false }` [INFO] [stdout] 12556524be646f147efa37f09242dc5c94491b444a07bbc77bb3b8e61d3abe27 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] aea1cdad9b0c2400d30e234bfb9a682816a58ff1f432fba865de6b57b90e29ce [INFO] running `Command { std: "docker" "start" "-a" "aea1cdad9b0c2400d30e234bfb9a682816a58ff1f432fba865de6b57b90e29ce", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking tokio v1.36.0 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.48 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking dining-philos v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/main.rs:159:51 [INFO] [stdout] | [INFO] [stdout] 159 | let mut threads: Vec> = Vec::>::new(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the struct `Vec` [INFO] [stdout] ... [INFO] [stdout] 163 | threads.push(thread::spawn(move || loop { [INFO] [stdout] | ______________________- [INFO] [stdout] 164 | | let mut shared = data.lock().unwrap(); [INFO] [stdout] 165 | | [INFO] [stdout] 166 | | let _ = shared.philosopher(i); [INFO] [stdout] ... | [INFO] [stdout] 170 | | thread::sleep(time::Duration::from_millis(duration.into())); [INFO] [stdout] 171 | | })); [INFO] [stdout] | |__________- type must be known at this point [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Send` [INFO] [stdout] note: required by a bound in `spawn` [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/main.rs:159:51 [INFO] [stdout] | [INFO] [stdout] 159 | let mut threads: Vec> = Vec::>::new(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the struct `Vec` [INFO] [stdout] ... [INFO] [stdout] 163 | threads.push(thread::spawn(move || loop { [INFO] [stdout] | ______________________- [INFO] [stdout] 164 | | let mut shared = data.lock().unwrap(); [INFO] [stdout] 165 | | [INFO] [stdout] 166 | | let _ = shared.philosopher(i); [INFO] [stdout] ... | [INFO] [stdout] 170 | | thread::sleep(time::Duration::from_millis(duration.into())); [INFO] [stdout] 171 | | })); [INFO] [stdout] | |__________- type must be known at this point [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Send` [INFO] [stdout] note: required by a bound in `spawn` [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1 [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 E0283`. [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 E0283`. [INFO] [stdout] [INFO] [stderr] error: could not compile `dining-philos` (bin "dining-philos") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `dining-philos` (bin "dining-philos" test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "aea1cdad9b0c2400d30e234bfb9a682816a58ff1f432fba865de6b57b90e29ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aea1cdad9b0c2400d30e234bfb9a682816a58ff1f432fba865de6b57b90e29ce", kill_on_drop: false }` [INFO] [stdout] aea1cdad9b0c2400d30e234bfb9a682816a58ff1f432fba865de6b57b90e29ce