[INFO] cloning repository https://github.com/YKG/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/YKG/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYKG%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYKG%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0b05d549483715d226c8935136b12384366646f
[INFO] testing YKG/rust-playground 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%2FYKG%2Frust-playground" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YKG/rust-playground 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/YKG/rust-playground
[INFO] finished tweaking git repo https://github.com/YKG/rust-playground
[INFO] tweaked toml for git repo https://github.com/YKG/rust-playground written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/YKG/rust-playground 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e734303e78fea2b6a331759217e5268885491956074179eeace05490390f62c9
[INFO] running `Command { std: "docker" "start" "-a" "e734303e78fea2b6a331759217e5268885491956074179eeace05490390f62c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e734303e78fea2b6a331759217e5268885491956074179eeace05490390f62c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e734303e78fea2b6a331759217e5268885491956074179eeace05490390f62c9", kill_on_drop: false }`
[INFO] [stdout] e734303e78fea2b6a331759217e5268885491956074179eeace05490390f62c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ca78177d82930317364beeb36e6eb9402e5a1d878f2ec57e0754cb3377f8163
[INFO] running `Command { std: "docker" "start" "-a" "3ca78177d82930317364beeb36e6eb9402e5a1d878f2ec57e0754cb3377f8163", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "3ca78177d82930317364beeb36e6eb9402e5a1d878f2ec57e0754cb3377f8163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca78177d82930317364beeb36e6eb9402e5a1d878f2ec57e0754cb3377f8163", kill_on_drop: false }`
[INFO] [stdout] 3ca78177d82930317364beeb36e6eb9402e5a1d878f2ec57e0754cb3377f8163
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df8c9cb6fc4874b2a0a63cbe05f9066250929abf6cdd5c6b842ab8347425c36e
[INFO] running `Command { std: "docker" "start" "-a" "df8c9cb6fc4874b2a0a63cbe05f9066250929abf6cdd5c6b842ab8347425c36e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> tests/tuple.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let t1 = (1);
[INFO] [stdout]   |              ^ ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 3 -     let t1 = (1);
[INFO] [stdout] 3 +     let t1 = 1;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> tests/tuple.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let t2 = (2);
[INFO] [stdout]   |              ^ ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 4 -     let t2 = (2);
[INFO] [stdout] 4 +     let t2 = 2;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> tests/tuple.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// see test_tuple_cmp
[INFO] [stdout] 27 | |     /// the meaning of the cmp function is:
[INFO] [stdout] 28 | |     /// 1. numbers greater than 3 is greater than those less or equal than 3
[INFO] [stdout] 29 | |     /// 2. for each group(gt3, lte 3), reverse the number orders
[INFO] [stdout]    | |________________________________________________________________^
[INFO] [stdout] 30 |       v.sort_by_key(|&num| (num > 3, Reverse(num)));
[INFO] [stdout]    |       --------------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_std_cmp_Reverse` should have a snake case name
[INFO] [stdout]   --> tests/tuple.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn test_std_cmp_Reverse() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_std_cmp_reverse`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_playground-fe4a29b3e5a0c762)
[INFO] [stderr]   Executable tests/trait.rs (/opt/rustwide/target/debug/deps/trait-2a1590bca350260e)
[INFO] [stderr]   Executable tests/tuple.rs (/opt/rustwide/target/debug/deps/tuple-460ee595476746a2)
[INFO] running `Command { std: "docker" "inspect" "df8c9cb6fc4874b2a0a63cbe05f9066250929abf6cdd5c6b842ab8347425c36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df8c9cb6fc4874b2a0a63cbe05f9066250929abf6cdd5c6b842ab8347425c36e", kill_on_drop: false }`
[INFO] [stdout] df8c9cb6fc4874b2a0a63cbe05f9066250929abf6cdd5c6b842ab8347425c36e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe57b5159b500903729483d0ef0ee58be2f03522289d5c145827f3f9b4581fe2
[INFO] running `Command { std: "docker" "start" "-a" "fe57b5159b500903729483d0ef0ee58be2f03522289d5c145827f3f9b4581fe2", 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] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> tests/tuple.rs:3:14
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let t1 = (1);
[INFO] [stderr]   |              ^ ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 3 -     let t1 = (1);
[INFO] [stderr] 3 +     let t1 = 1;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> tests/tuple.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let t2 = (2);
[INFO] [stderr]   |              ^ ^
[INFO] [stderr]   |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 4 -     let t2 = (2);
[INFO] [stderr] 4 +     let t2 = 2;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> tests/tuple.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | /     /// see test_tuple_cmp
[INFO] [stderr] 27 | |     /// the meaning of the cmp function is:
[INFO] [stderr] 28 | |     /// 1. numbers greater than 3 is greater than those less or equal than 3
[INFO] [stderr] 29 | |     /// 2. for each group(gt3, lte 3), reverse the number orders
[INFO] [stderr]    | |________________________________________________________________^
[INFO] [stderr] 30 |       v.sort_by_key(|&num| (num > 3, Reverse(num)));
[INFO] [stderr]    |       --------------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: use `//` for a plain comment
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_std_cmp_Reverse` should have a snake case name
[INFO] [stderr]   --> tests/tuple.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn test_std_cmp_Reverse() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_std_cmp_reverse`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `rust-playground` (test "tuple") generated 4 warnings
[INFO] [stdout] running 0 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_playground-fe4a29b3e5a0c762)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running tests/trait.rs (/opt/rustwide/target/debug/deps/trait-2a1590bca350260e)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_largest ... ok
[INFO] [stdout] test test_trait_as_parameter ... ok
[INFO] [stdout] test test_largest2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tuple.rs (/opt/rustwide/target/debug/deps/tuple-460ee595476746a2)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_std_cmp_Reverse ... ok
[INFO] [stdout] test test_tuple_cmp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fe57b5159b500903729483d0ef0ee58be2f03522289d5c145827f3f9b4581fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe57b5159b500903729483d0ef0ee58be2f03522289d5c145827f3f9b4581fe2", kill_on_drop: false }`
[INFO] [stdout] fe57b5159b500903729483d0ef0ee58be2f03522289d5c145827f3f9b4581fe2