[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] checking YKG/rust-playground against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYKG%2Frust-playground" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YKG/rust-playground on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-12/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", 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] af9b69f2c4ca7d5bb13bc3ad8b43f988e8f7b2b171dc25223be485bec2f35b16
[INFO] running `Command { std: "docker" "start" "-a" "af9b69f2c4ca7d5bb13bc3ad8b43f988e8f7b2b171dc25223be485bec2f35b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af9b69f2c4ca7d5bb13bc3ad8b43f988e8f7b2b171dc25223be485bec2f35b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af9b69f2c4ca7d5bb13bc3ad8b43f988e8f7b2b171dc25223be485bec2f35b16", kill_on_drop: false }`
[INFO] [stdout] af9b69f2c4ca7d5bb13bc3ad8b43f988e8f7b2b171dc25223be485bec2f35b16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f02f9568d32c3f092c6c03a1e991b2c8bece84e44236fe8d222969c5b9d3c620
[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" "f02f9568d32c3f092c6c03a1e991b2c8bece84e44236fe8d222969c5b9d3c620", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking rust-playground v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/tuple.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/trait.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed tests/tuple.rs (2 fixes)
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust-playground v0.1.0 (/tmp/fixit)
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "f02f9568d32c3f092c6c03a1e991b2c8bece84e44236fe8d222969c5b9d3c620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02f9568d32c3f092c6c03a1e991b2c8bece84e44236fe8d222969c5b9d3c620", kill_on_drop: false }`
[INFO] [stdout] f02f9568d32c3f092c6c03a1e991b2c8bece84e44236fe8d222969c5b9d3c620