[INFO] cloning repository https://github.com/LeoAlex0/luogu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeoAlex0/luogu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoAlex0%2Fluogu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoAlex0%2Fluogu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b36e5b88aaf0ec99595311afb9afda27548b8cf
[INFO] checking LeoAlex0/luogu against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoAlex0%2Fluogu" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeoAlex0/luogu on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LeoAlex0/luogu
[INFO] finished tweaking git repo https://github.com/LeoAlex0/luogu
[INFO] tweaked toml for git repo https://github.com/LeoAlex0/luogu written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/LeoAlex0/luogu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 4f5566984b60df866f174d2c34f5e701ebf1007fd11ffa70131a1cfb98fe89b5
[INFO] running `Command { std: "docker" "start" "-a" "4f5566984b60df866f174d2c34f5e701ebf1007fd11ffa70131a1cfb98fe89b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f5566984b60df866f174d2c34f5e701ebf1007fd11ffa70131a1cfb98fe89b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f5566984b60df866f174d2c34f5e701ebf1007fd11ffa70131a1cfb98fe89b5", kill_on_drop: false }`
[INFO] [stdout] 4f5566984b60df866f174d2c34f5e701ebf1007fd11ffa70131a1cfb98fe89b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5423595075be97cb324b15a4956e9c9cea69e5c9b1df3693447a2073cbee145
[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" "a5423595075be97cb324b15a4956e9c9cea69e5c9b1df3693447a2073cbee145", kill_on_drop: false }`
[INFO] [stderr]     Checking luogu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `cmp::max`, `rc::Rc`, `usize`
[INFO] [stdout]  --> src/bin/p7357_wip/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::max, rc::Rc, usize};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp::max`, `rc::Rc`, `usize`
[INFO] [stdout]  --> src/bin/p7357_wip/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::max, rc::Rc, usize};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ord`
[INFO] [stdout]  --> src/bin/p7357_wip/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         ord: usize,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `subtree_size`
[INFO] [stdout]  --> src/bin/p7357_wip/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         subtree_size: usize,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `group_head`
[INFO] [stdout]   --> src/bin/p7357_wip/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         group_head: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TreeAgent`
[INFO] [stdout]   --> src/bin/p7357_wip/main.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     struct TreeAgent {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `TreeAgent` should have a snake case name
[INFO] [stdout]  --> src/bin/p7357_wip/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | mod TreeAgent {
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to snake case: `tree_agent`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ord`
[INFO] [stdout]  --> src/bin/p7357_wip/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         ord: usize,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `subtree_size`
[INFO] [stdout]  --> src/bin/p7357_wip/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         subtree_size: usize,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `group_head`
[INFO] [stdout]   --> src/bin/p7357_wip/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         group_head: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TreeAgent`
[INFO] [stdout]   --> src/bin/p7357_wip/main.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     struct TreeAgent {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `TreeAgent` should have a snake case name
[INFO] [stdout]  --> src/bin/p7357_wip/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | mod TreeAgent {
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to snake case: `tree_agent`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "a5423595075be97cb324b15a4956e9c9cea69e5c9b1df3693447a2073cbee145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5423595075be97cb324b15a4956e9c9cea69e5c9b1df3693447a2073cbee145", kill_on_drop: false }`
[INFO] [stdout] a5423595075be97cb324b15a4956e9c9cea69e5c9b1df3693447a2073cbee145