[INFO] cloning repository https://github.com/jakegornall/guessing_game [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakegornall/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakegornall%2Fguessing_game", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakegornall%2Fguessing_game'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 973f0cdcd4eeb8de70d758a2430b0274b0cfd21d [INFO] testing jakegornall/guessing_game against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakegornall%2Fguessing_game" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jakegornall/guessing_game on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jakegornall/guessing_game [INFO] finished tweaking git repo https://github.com/jakegornall/guessing_game [INFO] tweaked toml for git repo https://github.com/jakegornall/guessing_game written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/jakegornall/guessing_game already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] de21319989acfc17fd630e0c2bff35dca3d0e5692604c607cdfece4e42a2a599 [INFO] running `Command { std: "docker" "start" "-a" "de21319989acfc17fd630e0c2bff35dca3d0e5692604c607cdfece4e42a2a599", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de21319989acfc17fd630e0c2bff35dca3d0e5692604c607cdfece4e42a2a599", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de21319989acfc17fd630e0c2bff35dca3d0e5692604c607cdfece4e42a2a599", kill_on_drop: false }` [INFO] [stdout] de21319989acfc17fd630e0c2bff35dca3d0e5692604c607cdfece4e42a2a599 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e30320b40adc423a56ed4d0f72ec532eae181cc0f2120f3c9fa251120837bc88 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e30320b40adc423a56ed4d0f72ec532eae181cc0f2120f3c9fa251120837bc88", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.24 [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `play_again` [INFO] [stdout] --> src/main.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut play_again = String::new(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_play_again` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> src/main.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut result = false; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_score` is never read [INFO] [stdout] --> src/main.rs:63:13 [INFO] [stdout] | [INFO] [stdout] 63 | let mut new_score = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut play_again = String::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.87s [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e30320b40adc423a56ed4d0f72ec532eae181cc0f2120f3c9fa251120837bc88", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e30320b40adc423a56ed4d0f72ec532eae181cc0f2120f3c9fa251120837bc88", kill_on_drop: false }` [INFO] [stdout] e30320b40adc423a56ed4d0f72ec532eae181cc0f2120f3c9fa251120837bc88 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3cd0e68e93cf09a0da5123cdcb3d76517432784db3878e8ef46121bab2a136a8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "3cd0e68e93cf09a0da5123cdcb3d76517432784db3878e8ef46121bab2a136a8", kill_on_drop: false }` [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `play_again` [INFO] [stdout] --> src/main.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut play_again = String::new(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_play_again` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> src/main.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut result = false; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_score` is never read [INFO] [stdout] --> src/main.rs:63:13 [INFO] [stdout] | [INFO] [stdout] 63 | let mut new_score = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut play_again = String::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.79s [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "3cd0e68e93cf09a0da5123cdcb3d76517432784db3878e8ef46121bab2a136a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3cd0e68e93cf09a0da5123cdcb3d76517432784db3878e8ef46121bab2a136a8", kill_on_drop: false }` [INFO] [stdout] 3cd0e68e93cf09a0da5123cdcb3d76517432784db3878e8ef46121bab2a136a8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a33fc24d893276a818e6d7e783e8c68fd2bd0f47cf02f2ee08c67a7da6ac423b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a33fc24d893276a818e6d7e783e8c68fd2bd0f47cf02f2ee08c67a7da6ac423b", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `play_again` [INFO] [stderr] --> src/main.rs:27:13 [INFO] [stderr] | [INFO] [stderr] 27 | let mut play_again = String::new(); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_play_again` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> src/main.rs:28:13 [INFO] [stderr] | [INFO] [stderr] 28 | let mut result = false; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `new_score` is never read [INFO] [stderr] --> src/main.rs:63:13 [INFO] [stderr] | [INFO] [stderr] 63 | let mut new_score = 0; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | let mut play_again = String::new(); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `guessing_game` (bin "guessing_game" test) generated 4 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/guessing_game-dbfc7560150688a4) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a33fc24d893276a818e6d7e783e8c68fd2bd0f47cf02f2ee08c67a7da6ac423b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a33fc24d893276a818e6d7e783e8c68fd2bd0f47cf02f2ee08c67a7da6ac423b", kill_on_drop: false }` [INFO] [stdout] a33fc24d893276a818e6d7e783e8c68fd2bd0f47cf02f2ee08c67a7da6ac423b