[INFO] cloning repository https://github.com/ajcrites/monty_hall [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ajcrites/monty_hall" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajcrites%2Fmonty_hall", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajcrites%2Fmonty_hall'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 96f03e958a3950ba5cb6eab58f69260b1852032a [INFO] checking ajcrites/monty_hall against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajcrites%2Fmonty_hall" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ajcrites/monty_hall 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/ajcrites/monty_hall [INFO] finished tweaking git repo https://github.com/ajcrites/monty_hall [INFO] tweaked toml for git repo https://github.com/ajcrites/monty_hall written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ajcrites/monty_hall 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] Downloading crates ... [INFO] [stderr] Downloaded rand v0.3.11 [INFO] [stderr] Downloaded winapi v0.2.4 [INFO] [stderr] Downloaded num_cpus v0.2.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c1cd76914208276f92a003442476c27a0556a214b730e9746ae1785b809526b5 [INFO] running `Command { std: "docker" "start" "-a" "c1cd76914208276f92a003442476c27a0556a214b730e9746ae1785b809526b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c1cd76914208276f92a003442476c27a0556a214b730e9746ae1785b809526b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1cd76914208276f92a003442476c27a0556a214b730e9746ae1785b809526b5", kill_on_drop: false }` [INFO] [stdout] c1cd76914208276f92a003442476c27a0556a214b730e9746ae1785b809526b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d5b6a0fd9fa0ca485a2224080075e846bfb9bacc10c07188d9b80f01e62e5caf [INFO] running `Command { std: "docker" "start" "-a" "d5b6a0fd9fa0ca485a2224080075e846bfb9bacc10c07188d9b80f01e62e5caf", kill_on_drop: false }` [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.4 [INFO] [stderr] Checking libc v0.2.4 [INFO] [stderr] Checking libc v0.1.12 [INFO] [stderr] Compiling kernel32-sys v0.2.1 [INFO] [stderr] Compiling advapi32-sys v0.1.2 [INFO] [stderr] Checking rand v0.3.11 [INFO] [stderr] Checking num_cpus v0.2.10 [INFO] [stderr] Checking monty_hall v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:64:14 [INFO] [stdout] | [INFO] [stdout] 64 | for _ in (0..cpus) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 64 - for _ in (0..cpus) { [INFO] [stdout] 64 + for _ in 0..cpus { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:67:22 [INFO] [stdout] | [INFO] [stdout] 67 | for _ in (0..1_000_000 / cpus) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 67 - for _ in (0..1_000_000 / cpus) { [INFO] [stdout] 67 + for _ in 0..1_000_000 / cpus { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:64:14 [INFO] [stdout] | [INFO] [stdout] 64 | for _ in (0..cpus) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 64 - for _ in (0..cpus) { [INFO] [stdout] 64 + for _ in 0..cpus { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:67:22 [INFO] [stdout] | [INFO] [stdout] 67 | for _ in (0..1_000_000 / cpus) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 67 - for _ in (0..1_000_000 / cpus) { [INFO] [stdout] 67 + for _ in 0..1_000_000 / cpus { [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 0.57s [INFO] running `Command { std: "docker" "inspect" "d5b6a0fd9fa0ca485a2224080075e846bfb9bacc10c07188d9b80f01e62e5caf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5b6a0fd9fa0ca485a2224080075e846bfb9bacc10c07188d9b80f01e62e5caf", kill_on_drop: false }` [INFO] [stdout] d5b6a0fd9fa0ca485a2224080075e846bfb9bacc10c07188d9b80f01e62e5caf [INFO] checking ajcrites/monty_hall against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajcrites%2Fmonty_hall" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ajcrites/monty_hall 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/ajcrites/monty_hall [INFO] finished tweaking git repo https://github.com/ajcrites/monty_hall [INFO] tweaked toml for git repo https://github.com/ajcrites/monty_hall written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ajcrites/monty_hall 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7ce2629327669870c4dde86a6cd69f04b41b3f534c6b5d8c84677a5720d40993 [INFO] running `Command { std: "docker" "start" "-a" "7ce2629327669870c4dde86a6cd69f04b41b3f534c6b5d8c84677a5720d40993", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7ce2629327669870c4dde86a6cd69f04b41b3f534c6b5d8c84677a5720d40993", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ce2629327669870c4dde86a6cd69f04b41b3f534c6b5d8c84677a5720d40993", kill_on_drop: false }` [INFO] [stdout] 7ce2629327669870c4dde86a6cd69f04b41b3f534c6b5d8c84677a5720d40993 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d5f5dc079cf094233a0d0cc410337e7c44e488f98596bbbaf30c5b7e83b0ef93 [INFO] running `Command { std: "docker" "start" "-a" "d5f5dc079cf094233a0d0cc410337e7c44e488f98596bbbaf30c5b7e83b0ef93", kill_on_drop: false }` [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.4 [INFO] [stderr] Checking libc v0.2.4 [INFO] [stderr] Checking libc v0.1.12 [INFO] [stderr] Compiling kernel32-sys v0.2.1 [INFO] [stderr] Compiling advapi32-sys v0.1.2 [INFO] [stderr] Checking rand v0.3.11 [INFO] [stderr] Checking num_cpus v0.2.10 [INFO] [stderr] Checking monty_hall v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:64:14 [INFO] [stdout] | [INFO] [stdout] 64 | for _ in (0..cpus) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 64 - for _ in (0..cpus) { [INFO] [stdout] 64 + for _ in 0..cpus { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:67:22 [INFO] [stdout] | [INFO] [stdout] 67 | for _ in (0..1_000_000 / cpus) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 67 - for _ in (0..1_000_000 / cpus) { [INFO] [stdout] 67 + for _ in 0..1_000_000 / cpus { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:64:14 [INFO] [stdout] | [INFO] [stdout] 64 | for _ in (0..cpus) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 64 - for _ in (0..cpus) { [INFO] [stdout] 64 + for _ in 0..cpus { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:67:22 [INFO] [stdout] | [INFO] [stdout] 67 | for _ in (0..1_000_000 / cpus) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 67 - for _ in (0..1_000_000 / cpus) { [INFO] [stdout] 67 + for _ in 0..1_000_000 / cpus { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/main.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | / match selection.trim() { [INFO] [stdout] 40 | | "w" => return selection, [INFO] [stdout] 41 | | "n" => return selection, [INFO] [stdout] 42 | | _ => { [INFO] [stdout] ... | [INFO] [stdout] 45 | | }, [INFO] [stdout] 46 | | }; [INFO] [stdout] | |_________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/main.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | / match selection.trim() { [INFO] [stdout] 40 | | "w" => return selection, [INFO] [stdout] 41 | | "n" => return selection, [INFO] [stdout] 42 | | _ => { [INFO] [stdout] ... | [INFO] [stdout] 45 | | }, [INFO] [stdout] 46 | | }; [INFO] [stdout] | |_________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `monty_hall` (bin "monty_hall") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `monty_hall` (bin "monty_hall" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d5f5dc079cf094233a0d0cc410337e7c44e488f98596bbbaf30c5b7e83b0ef93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5f5dc079cf094233a0d0cc410337e7c44e488f98596bbbaf30c5b7e83b0ef93", kill_on_drop: false }` [INFO] [stdout] d5f5dc079cf094233a0d0cc410337e7c44e488f98596bbbaf30c5b7e83b0ef93