[INFO] cloning repository https://github.com/jmmaloney4/rps-ngrams [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmmaloney4/rps-ngrams" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmmaloney4%2Frps-ngrams", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmmaloney4%2Frps-ngrams'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 678165f74aedffb25c100ab03f0ecff071731d22 [INFO] checking jmmaloney4/rps-ngrams against try#5fee451ebd94296ea05214e819c311e164b30af6 for pr-139042 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmmaloney4%2Frps-ngrams" "/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/jmmaloney4/rps-ngrams on toolchain 5fee451ebd94296ea05214e819c311e164b30af6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jmmaloney4/rps-ngrams [INFO] finished tweaking git repo https://github.com/jmmaloney4/rps-ngrams [INFO] tweaked toml for git repo https://github.com/jmmaloney4/rps-ngrams written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/jmmaloney4/rps-ngrams 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" "+5fee451ebd94296ea05214e819c311e164b30af6" "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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 89ae10171327d0db4b643a7ef60f3f8cbc4bfce6643c114f6ac0e1248fbe3f7a [INFO] running `Command { std: "docker" "start" "-a" "89ae10171327d0db4b643a7ef60f3f8cbc4bfce6643c114f6ac0e1248fbe3f7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "89ae10171327d0db4b643a7ef60f3f8cbc4bfce6643c114f6ac0e1248fbe3f7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89ae10171327d0db4b643a7ef60f3f8cbc4bfce6643c114f6ac0e1248fbe3f7a", kill_on_drop: false }` [INFO] [stdout] 89ae10171327d0db4b643a7ef60f3f8cbc4bfce6643c114f6ac0e1248fbe3f7a [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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2876af860b395d5b19a9c724626009b5f6a1505f091e477d5463ea43ab595a6f [INFO] running `Command { std: "docker" "start" "-a" "2876af860b395d5b19a9c724626009b5f6a1505f091e477d5463ea43ab595a6f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Compiling signal-hook v0.3.14 [INFO] [stderr] Checking smallvec v1.9.0 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking newline-converter v0.2.0 [INFO] [stderr] Checking unicode-segmentation v1.9.0 [INFO] [stderr] Checking dyn-clone v1.0.9 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Compiling generic-array v0.14.6 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking mio v0.8.4 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking signal-hook-mio v0.2.3 [INFO] [stderr] Checking crossterm v0.25.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling thiserror-impl v1.0.32 [INFO] [stderr] Compiling snafu-derive v0.7.1 [INFO] [stderr] Checking thiserror v1.0.32 [INFO] [stderr] Checking inquire v0.3.0 [INFO] [stderr] Checking snafu v0.7.1 [INFO] [stderr] Checking rps-ngram v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `ArrayLength` and `GenericArray` [INFO] [stdout] --> src/main.rs:6:21 [INFO] [stdout] | [INFO] [stdout] 6 | use generic_array::{ArrayLength, GenericArray}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ArrayLength` and `GenericArray` [INFO] [stdout] --> src/main.rs:6:21 [INFO] [stdout] | [INFO] [stdout] 6 | use generic_array::{ArrayLength, GenericArray}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:211:5 [INFO] [stdout] | [INFO] [stdout] 200 | / loop { [INFO] [stdout] 201 | | let res = turn(&mut human, &mut cpu)?; [INFO] [stdout] 202 | | results.push(res); [INFO] [stdout] 203 | | let winrate = results.iter().fold((0, 0), |(w, t), r| match r { [INFO] [stdout] ... | [INFO] [stdout] 208 | | println!("{}", (winrate.0 as f64) / (winrate.1 as f64)); [INFO] [stdout] 209 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 210 | [INFO] [stdout] 211 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:211:5 [INFO] [stdout] | [INFO] [stdout] 200 | / loop { [INFO] [stdout] 201 | | let res = turn(&mut human, &mut cpu)?; [INFO] [stdout] 202 | | results.push(res); [INFO] [stdout] 203 | | let winrate = results.iter().fold((0, 0), |(w, t), r| match r { [INFO] [stdout] ... | [INFO] [stdout] 208 | | println!("{}", (winrate.0 as f64) / (winrate.1 as f64)); [INFO] [stdout] 209 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 210 | [INFO] [stdout] 211 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RNGPlayer` is never constructed [INFO] [stdout] --> src/main.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 83 | struct RNGPlayer {} [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `ngrams` is never used [INFO] [stdout] --> src/main.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 116 | impl NGramsPlayer { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 117 | fn ngrams(n: usize) -> Vec> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RNGPlayer` is never constructed [INFO] [stdout] --> src/main.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 83 | struct RNGPlayer {} [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `ngrams` is never used [INFO] [stdout] --> src/main.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 116 | impl NGramsPlayer { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 117 | fn ngrams(n: usize) -> Vec> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.19s [INFO] running `Command { std: "docker" "inspect" "2876af860b395d5b19a9c724626009b5f6a1505f091e477d5463ea43ab595a6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2876af860b395d5b19a9c724626009b5f6a1505f091e477d5463ea43ab595a6f", kill_on_drop: false }` [INFO] [stdout] 2876af860b395d5b19a9c724626009b5f6a1505f091e477d5463ea43ab595a6f