[INFO] cloning repository https://github.com/MaxLuchs/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/MaxLuchs/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxLuchs%2Fguessing_game", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxLuchs%2Fguessing_game'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5069231d1a3ebcff2322666508eb7fe87103839f [INFO] testing MaxLuchs/guessing_game against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxLuchs%2Fguessing_game" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MaxLuchs/guessing_game on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MaxLuchs/guessing_game [INFO] finished tweaking git repo https://github.com/MaxLuchs/guessing_game [INFO] tweaked toml for git repo https://github.com/MaxLuchs/guessing_game written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/MaxLuchs/guessing_game already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 55fb10723158e54208158b1869fa29aa6e1843b3584f367c4a41a82f492340ea [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" "55fb10723158e54208158b1869fa29aa6e1843b3584f367c4a41a82f492340ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "55fb10723158e54208158b1869fa29aa6e1843b3584f367c4a41a82f492340ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55fb10723158e54208158b1869fa29aa6e1843b3584f367c4a41a82f492340ea", kill_on_drop: false }` [INFO] [stdout] 55fb10723158e54208158b1869fa29aa6e1843b3584f367c4a41a82f492340ea [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", 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] b582d60fda206487aec9a0ae454f71dda19e03a408728b77c6d74360122f182c [INFO] running `Command { std: "docker" "start" "-a" "b582d60fda206487aec9a0ae454f71dda19e03a408728b77c6d74360122f182c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.91 [INFO] [stderr] Compiling tramp v0.3.0 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling rand_core v0.6.2 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling guess v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/recursion.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | stdin.read_line(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/recursion.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | / buffer.trim().parse::().map(|number| { [INFO] [stdout] 12 | | if number == secret { [INFO] [stdout] 13 | | println!("Match ... Game over"); [INFO] [stdout] 14 | | } else if number < secret { [INFO] [stdout] ... | [INFO] [stdout] 23 | | guess_secret(secret); [INFO] [stdout] 24 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/loop.rs:22:20 [INFO] [stdout] | [INFO] [stdout] 22 | if let Err(error) = result { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/loop.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | stdin.read_line(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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 [unoptimized + debuginfo] target(s) in 9.97s [INFO] running `Command { std: "docker" "inspect" "b582d60fda206487aec9a0ae454f71dda19e03a408728b77c6d74360122f182c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b582d60fda206487aec9a0ae454f71dda19e03a408728b77c6d74360122f182c", kill_on_drop: false }` [INFO] [stdout] b582d60fda206487aec9a0ae454f71dda19e03a408728b77c6d74360122f182c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", 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] fa19f3a7ffd72069698a7b92c3ca32477855e8ca8f8abd26e8edc4b300b91003 [INFO] running `Command { std: "docker" "start" "-a" "fa19f3a7ffd72069698a7b92c3ca32477855e8ca8f8abd26e8edc4b300b91003", kill_on_drop: false }` [INFO] [stderr] Compiling guess v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/recursion.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | stdin.read_line(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/recursion.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | / buffer.trim().parse::().map(|number| { [INFO] [stdout] 12 | | if number == secret { [INFO] [stdout] 13 | | println!("Match ... Game over"); [INFO] [stdout] 14 | | } else if number < secret { [INFO] [stdout] ... | [INFO] [stdout] 23 | | guess_secret(secret); [INFO] [stdout] 24 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/loop.rs:22:20 [INFO] [stdout] | [INFO] [stdout] 22 | if let Err(error) = result { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/loop.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | stdin.read_line(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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 test [unoptimized + debuginfo] target(s) in 1.47s [INFO] [stderr] Executable unittests src/loop.rs (/opt/rustwide/target/debug/deps/loop-6d28af38be89369d) [INFO] [stderr] Executable unittests src/recursion.rs (/opt/rustwide/target/debug/deps/recursion-927392e8c0857336) [INFO] running `Command { std: "docker" "inspect" "fa19f3a7ffd72069698a7b92c3ca32477855e8ca8f8abd26e8edc4b300b91003", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa19f3a7ffd72069698a7b92c3ca32477855e8ca8f8abd26e8edc4b300b91003", kill_on_drop: false }` [INFO] [stdout] fa19f3a7ffd72069698a7b92c3ca32477855e8ca8f8abd26e8edc4b300b91003 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", 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] e445cdb2474ea8770b47f312dbd9c45b44039376aa1e771d96f1ec4c709ca7a6 [INFO] running `Command { std: "docker" "start" "-a" "e445cdb2474ea8770b47f312dbd9c45b44039376aa1e771d96f1ec4c709ca7a6", kill_on_drop: false }` [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/recursion.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | stdin.read_line(&mut buffer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/recursion.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | / buffer.trim().parse::().map(|number| { [INFO] [stderr] 12 | | if number == secret { [INFO] [stderr] 13 | | println!("Match ... Game over"); [INFO] [stderr] 14 | | } else if number < secret { [INFO] [stderr] ... | [INFO] [stderr] 23 | | guess_secret(secret); [INFO] [stderr] 24 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/loop.rs:22:20 [INFO] [stderr] | [INFO] [stderr] 22 | if let Err(error) = result { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/loop.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | stdin.read_line(&mut buffer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `guess` (bin "recursion" test) generated 2 warnings [INFO] [stderr] warning: `guess` (bin "loop" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running unittests src/loop.rs (/opt/rustwide/target/debug/deps/loop-6d28af38be89369d) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/recursion.rs (/opt/rustwide/target/debug/deps/recursion-927392e8c0857336) [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] [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" "e445cdb2474ea8770b47f312dbd9c45b44039376aa1e771d96f1ec4c709ca7a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e445cdb2474ea8770b47f312dbd9c45b44039376aa1e771d96f1ec4c709ca7a6", kill_on_drop: false }` [INFO] [stdout] e445cdb2474ea8770b47f312dbd9c45b44039376aa1e771d96f1ec4c709ca7a6