[INFO] cloning repository https://github.com/RTK99/rust-beginners [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RTK99/rust-beginners" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRTK99%2Frust-beginners", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRTK99%2Frust-beginners'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1a0528da4b179c687ab1b7d14662767504ca87db [INFO] testing RTK99/rust-beginners against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRTK99%2Frust-beginners" "/workspace/builds/worker-62/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-62/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RTK99/rust-beginners on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RTK99/rust-beginners [INFO] finished tweaking git repo https://github.com/RTK99/rust-beginners [INFO] tweaked toml for git repo https://github.com/RTK99/rust-beginners written to /workspace/builds/worker-62/source/Cargo.toml [INFO] crate git repo https://github.com/RTK99/rust-beginners already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f7445980aff49ae7c06ca0b937b8183ec6eac183f2f1eca74b6a7e6800bb7f16 [INFO] running `Command { std: "docker" "start" "-a" "f7445980aff49ae7c06ca0b937b8183ec6eac183f2f1eca74b6a7e6800bb7f16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f7445980aff49ae7c06ca0b937b8183ec6eac183f2f1eca74b6a7e6800bb7f16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f7445980aff49ae7c06ca0b937b8183ec6eac183f2f1eca74b6a7e6800bb7f16", kill_on_drop: false }` [INFO] [stdout] f7445980aff49ae7c06ca0b937b8183ec6eac183f2f1eca74b6a7e6800bb7f16 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a4d30c08ce78b6eb009d130d591dddd171f583837c4c522f7cb9c09f3d156bcb [INFO] running `Command { std: "docker" "start" "-a" "a4d30c08ce78b6eb009d130d591dddd171f583837c4c522f7cb9c09f3d156bcb", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.47 [INFO] [stderr] Compiling structs v0.1.0 (/opt/rustwide/workdir/structs) [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/variables) [INFO] [stderr] Compiling control-flow v0.1.0 (/opt/rustwide/workdir/control-flow) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> variables/src/main.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let x: i32 = 1111; // With type annotation/ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> variables/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let x = 1111; // Type will be inferred. [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> variables/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut x = "I can be mutable!"; [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] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand v0.4.5 [INFO] [stderr] Compiling rand v0.3.22 [INFO] [stderr] Compiling guessing-game v0.1.0 (/opt/rustwide/workdir/guessing-game) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.10s [INFO] running `Command { std: "docker" "inspect" "a4d30c08ce78b6eb009d130d591dddd171f583837c4c522f7cb9c09f3d156bcb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4d30c08ce78b6eb009d130d591dddd171f583837c4c522f7cb9c09f3d156bcb", kill_on_drop: false }` [INFO] [stdout] a4d30c08ce78b6eb009d130d591dddd171f583837c4c522f7cb9c09f3d156bcb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a2ab1351b5284fe4bf387c107b4d8142c9548217ebb812ce1a96160a424eb4c9 [INFO] running `Command { std: "docker" "start" "-a" "a2ab1351b5284fe4bf387c107b4d8142c9548217ebb812ce1a96160a424eb4c9", kill_on_drop: false }` [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/variables) [INFO] [stderr] Compiling control-flow v0.1.0 (/opt/rustwide/workdir/control-flow) [INFO] [stderr] Compiling structs v0.1.0 (/opt/rustwide/workdir/structs) [INFO] [stderr] Compiling guessing-game v0.1.0 (/opt/rustwide/workdir/guessing-game) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> variables/src/main.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let x: i32 = 1111; // With type annotation/ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> variables/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let x = 1111; // Type will be inferred. [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> variables/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut x = "I can be mutable!"; [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] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "a2ab1351b5284fe4bf387c107b4d8142c9548217ebb812ce1a96160a424eb4c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2ab1351b5284fe4bf387c107b4d8142c9548217ebb812ce1a96160a424eb4c9", kill_on_drop: false }` [INFO] [stdout] a2ab1351b5284fe4bf387c107b4d8142c9548217ebb812ce1a96160a424eb4c9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0584e6529871d76ec9d25a59c6296e4de32959b6964d5cec83a555e284ade698 [INFO] running `Command { std: "docker" "start" "-a" "0584e6529871d76ec9d25a59c6296e4de32959b6964d5cec83a555e284ade698", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> variables/src/main.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let x: i32 = 1111; // With type annotation/ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> variables/src/main.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | let x = 1111; // Type will be inferred. [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> variables/src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut x = "I can be mutable!"; [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: `variables` (bin "variables" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/control_flow-de1a19ca5350bb36) [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] [stderr] Running unittests (/opt/rustwide/target/debug/deps/guessing_game-5c4cf6037dbbe433) [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] [stderr] Running unittests (/opt/rustwide/target/debug/deps/structs-2c2fd64b8114f260) [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] [stderr] Running unittests (/opt/rustwide/target/debug/deps/variables-92e9254919319305) [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" "0584e6529871d76ec9d25a59c6296e4de32959b6964d5cec83a555e284ade698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0584e6529871d76ec9d25a59c6296e4de32959b6964d5cec83a555e284ade698", kill_on_drop: false }` [INFO] [stdout] 0584e6529871d76ec9d25a59c6296e4de32959b6964d5cec83a555e284ade698