[INFO] cloning repository https://github.com/lemontree1729/learning_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lemontree1729/learning_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemontree1729%2Flearning_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemontree1729%2Flearning_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2b9cf44680fe3ba343477291a60bb44f83c0a111 [INFO] testing lemontree1729/learning_rust against 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemontree1729%2Flearning_rust" "/workspace/builds/worker-40/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lemontree1729/learning_rust on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/lemontree1729/learning_rust [INFO] finished tweaking git repo https://github.com/lemontree1729/learning_rust [INFO] tweaked toml for git repo https://github.com/lemontree1729/learning_rust written to /workspace/builds/worker-40/source/Cargo.toml [INFO] crate git repo https://github.com/lemontree1729/learning_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 231bc6a638a45f39d2aa2b5e8f7e4fec076a9ee434fb4ee2faad38af3c278f51 [INFO] running `Command { std: "docker" "start" "-a" "231bc6a638a45f39d2aa2b5e8f7e4fec076a9ee434fb4ee2faad38af3c278f51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "231bc6a638a45f39d2aa2b5e8f7e4fec076a9ee434fb4ee2faad38af3c278f51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "231bc6a638a45f39d2aa2b5e8f7e4fec076a9ee434fb4ee2faad38af3c278f51", kill_on_drop: false }` [INFO] [stdout] 231bc6a638a45f39d2aa2b5e8f7e4fec076a9ee434fb4ee2faad38af3c278f51 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 378b3ac0477a66e4ac1e75b161b0e85503f3e9fd5f062e722f1815707f2d29f8 [INFO] running `Command { std: "docker" "start" "-a" "378b3ac0477a66e4ac1e75b161b0e85503f3e9fd5f062e722f1815707f2d29f8", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling learning_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/bin/borrow_and_slice.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let a = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `s` is never read [INFO] [stdout] --> src/bin/etc.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | s = String::from(""); // error! [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.33s [INFO] running `Command { std: "docker" "inspect" "378b3ac0477a66e4ac1e75b161b0e85503f3e9fd5f062e722f1815707f2d29f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "378b3ac0477a66e4ac1e75b161b0e85503f3e9fd5f062e722f1815707f2d29f8", kill_on_drop: false }` [INFO] [stdout] 378b3ac0477a66e4ac1e75b161b0e85503f3e9fd5f062e722f1815707f2d29f8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 23ea9d83e452e5bb6bb5bed750a89fca2de44c4729b841a8c1a79dcd24b98d06 [INFO] running `Command { std: "docker" "start" "-a" "23ea9d83e452e5bb6bb5bed750a89fca2de44c4729b841a8c1a79dcd24b98d06", kill_on_drop: false }` [INFO] [stderr] Compiling learning_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/bin/borrow_and_slice.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let a = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `s` is never read [INFO] [stdout] --> src/bin/etc.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | s = String::from(""); // error! [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.70s [INFO] running `Command { std: "docker" "inspect" "23ea9d83e452e5bb6bb5bed750a89fca2de44c4729b841a8c1a79dcd24b98d06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23ea9d83e452e5bb6bb5bed750a89fca2de44c4729b841a8c1a79dcd24b98d06", kill_on_drop: false }` [INFO] [stdout] 23ea9d83e452e5bb6bb5bed750a89fca2de44c4729b841a8c1a79dcd24b98d06 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d3fd7d0801b8f616fffc7229deecc1d9921623292868f5dbaaabc93c83563ad7 [INFO] running `Command { std: "docker" "start" "-a" "d3fd7d0801b8f616fffc7229deecc1d9921623292868f5dbaaabc93c83563ad7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: value assigned to `s` is never read [INFO] [stderr] --> src/bin/etc.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | s = String::from(""); // error! [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: `learning_rust` (bin "etc" test) generated 1 warning [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/bin/borrow_and_slice.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let a = String::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `learning_rust` (bin "borrow_and_slice" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 14.11s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/borrow_and_slice-74d4e3d6c71a642b) [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/branches-bfde4ed8216f1c2f) [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/data_types-8997246ae1f2b610) [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/etc-9e3912162949ae91) [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/functions-8b6387baade0dd1d) [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-bc7ed4b8f27213cd) [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/learning_rust-2b97d2170e18cab8) [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/ownership-c62fe5fb59140391) [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/test-afb61dedf0ea3315) [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-5a25569d0f13640a) [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" "d3fd7d0801b8f616fffc7229deecc1d9921623292868f5dbaaabc93c83563ad7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d3fd7d0801b8f616fffc7229deecc1d9921623292868f5dbaaabc93c83563ad7", kill_on_drop: false }` [INFO] [stdout] d3fd7d0801b8f616fffc7229deecc1d9921623292868f5dbaaabc93c83563ad7