[INFO] cloning repository https://github.com/AllenShi/rust_playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AllenShi/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllenShi%2Frust_playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllenShi%2Frust_playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 24a8f729bf3ff9f478679b27f53960d09d4df205 [INFO] testing AllenShi/rust_playground against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllenShi%2Frust_playground" "/workspace/builds/worker-97/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/AllenShi/rust_playground on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/AllenShi/rust_playground [INFO] finished tweaking git repo https://github.com/AllenShi/rust_playground [INFO] tweaked toml for git repo https://github.com/AllenShi/rust_playground written to /workspace/builds/worker-97/source/Cargo.toml [INFO] crate git repo https://github.com/AllenShi/rust_playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 462280a2baefa2ad1c388a41db09de7276d1f8743c92653f800401a1bb94de73 [INFO] running `Command { std: "docker" "start" "-a" "462280a2baefa2ad1c388a41db09de7276d1f8743c92653f800401a1bb94de73", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "462280a2baefa2ad1c388a41db09de7276d1f8743c92653f800401a1bb94de73", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "462280a2baefa2ad1c388a41db09de7276d1f8743c92653f800401a1bb94de73", kill_on_drop: false }` [INFO] [stdout] 462280a2baefa2ad1c388a41db09de7276d1f8743c92653f800401a1bb94de73 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 49beeab3a6e465a3483af0b6a5c2135ee405867a85c78171379791271d981065 [INFO] running `Command { std: "docker" "start" "-a" "49beeab3a6e465a3483af0b6a5c2135ee405867a85c78171379791271d981065", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust_playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/util/conversionexam.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | value: i32 [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `User` [INFO] [stdout] --> src/util/structexam.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_user_style_1` [INFO] [stdout] --> src/util/structexam.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | fn build_user_style_1(email: String, username: String) -> User { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_user_style_2` [INFO] [stdout] --> src/util/structexam.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn build_user_style_2(email: String, username: String) -> User { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.10s [INFO] running `Command { std: "docker" "inspect" "49beeab3a6e465a3483af0b6a5c2135ee405867a85c78171379791271d981065", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49beeab3a6e465a3483af0b6a5c2135ee405867a85c78171379791271d981065", kill_on_drop: false }` [INFO] [stdout] 49beeab3a6e465a3483af0b6a5c2135ee405867a85c78171379791271d981065 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5bc9cdb6d1fa00b7893462374d1e616f9ae722a50d9f244c8fa83022dfed5742 [INFO] running `Command { std: "docker" "start" "-a" "5bc9cdb6d1fa00b7893462374d1e616f9ae722a50d9f244c8fa83022dfed5742", kill_on_drop: false }` [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/util/conversionexam.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | value: i32 [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rust_playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct is never constructed: `User` [INFO] [stdout] --> src/util/structexam.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_user_style_1` [INFO] [stdout] --> src/util/structexam.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | fn build_user_style_1(email: String, username: String) -> User { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_user_style_2` [INFO] [stdout] --> src/util/structexam.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn build_user_style_2(email: String, username: String) -> User { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_value` [INFO] [stdout] --> src/util/stringexam.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 49 | let another_value = my_value; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/util/conversionexam.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | value: i32 [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `sign_in_count` [INFO] [stdout] --> src/util/structexam.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `active` [INFO] [stdout] --> src/util/structexam.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | active: bool [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.98s [INFO] running `Command { std: "docker" "inspect" "5bc9cdb6d1fa00b7893462374d1e616f9ae722a50d9f244c8fa83022dfed5742", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5bc9cdb6d1fa00b7893462374d1e616f9ae722a50d9f244c8fa83022dfed5742", kill_on_drop: false }` [INFO] [stdout] 5bc9cdb6d1fa00b7893462374d1e616f9ae722a50d9f244c8fa83022dfed5742 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] bda7308f465df0c97f38a7085249b0102cd02c9e3b5cbfe4cb4afb77fd6e9ac6 [INFO] running `Command { std: "docker" "start" "-a" "bda7308f465df0c97f38a7085249b0102cd02c9e3b5cbfe4cb4afb77fd6e9ac6", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: field is never read: `value` [INFO] [stderr] --> src/util/conversionexam.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | value: i32 [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `User` [INFO] [stderr] --> src/util/structexam.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct User { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `build_user_style_1` [INFO] [stderr] --> src/util/structexam.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn build_user_style_1(email: String, username: String) -> User { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `build_user_style_2` [INFO] [stderr] --> src/util/structexam.rs:18:8 [INFO] [stderr] | [INFO] [stderr] 18 | fn build_user_style_2(email: String, username: String) -> User { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rust_playground` (lib) generated 4 warnings [INFO] [stderr] warning: unused variable: `another_value` [INFO] [stderr] --> src/util/stringexam.rs:49:13 [INFO] [stderr] | [INFO] [stderr] 49 | let another_value = my_value; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_value` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `sign_in_count` [INFO] [stderr] --> src/util/structexam.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | sign_in_count: u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `active` [INFO] [stderr] --> src/util/structexam.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | active: bool [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rust_playground` (lib test) generated 4 warnings (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_playground-e448e0f457da9fe5) [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test util::cellexam_test::compare_owner_and_reference ... ok [INFO] [stdout] test util::cellexam_test::unit_test_house ... ok [INFO] [stdout] test util::stringexam::tests::unit_test_string_and_str ... ok [INFO] [stdout] test util::stringexam::tests::unit_test_string_assignment ... ok [INFO] [stdout] test util::structexam::tests::test_build_user_style_2 ... ok [INFO] [stdout] test util::conversionexam_test::unit_test_number ... ok [INFO] [stdout] test util::structexam::tests::test_new_user ... ok [INFO] [stdout] test util::structexam::tests::test_build_user_style_1 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 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/rust_playground-9afd7cce86890513) [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 tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-724ad96975dba37a) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test int_test_house_with_cell ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests rust_playground [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" "bda7308f465df0c97f38a7085249b0102cd02c9e3b5cbfe4cb4afb77fd6e9ac6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bda7308f465df0c97f38a7085249b0102cd02c9e3b5cbfe4cb4afb77fd6e9ac6", kill_on_drop: false }` [INFO] [stdout] bda7308f465df0c97f38a7085249b0102cd02c9e3b5cbfe4cb4afb77fd6e9ac6