[INFO] cloning repository https://github.com/RobbieGM/ladybug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RobbieGM/ladybug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobbieGM%2Fladybug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobbieGM%2Fladybug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29fedceaff8aa0dd23a0267fd86f447025af4767
[INFO] checking RobbieGM/ladybug against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobbieGM%2Fladybug" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RobbieGM/ladybug on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RobbieGM/ladybug
[INFO] finished tweaking git repo https://github.com/RobbieGM/ladybug
[INFO] tweaked toml for git repo https://github.com/RobbieGM/ladybug written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/RobbieGM/ladybug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shakmaty v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bc91928b619e2836c325cea4a3eeb8f4f05e97820e6af47e86b8c16e6e7ac96
[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" "3bc91928b619e2836c325cea4a3eeb8f4f05e97820e6af47e86b8c16e6e7ac96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bc91928b619e2836c325cea4a3eeb8f4f05e97820e6af47e86b8c16e6e7ac96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc91928b619e2836c325cea4a3eeb8f4f05e97820e6af47e86b8c16e6e7ac96", kill_on_drop: false }`
[INFO] [stdout] 3bc91928b619e2836c325cea4a3eeb8f4f05e97820e6af47e86b8c16e6e7ac96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d343305cfabe0389af4ecc090ff92f717e0cdb4142d824ceac6a9fd65c3036f
[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" "8d343305cfabe0389af4ecc090ff92f717e0cdb4142d824ceac6a9fd65c3036f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling shakmaty v0.18.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking btoi v0.4.2
[INFO] [stderr]     Checking ladybug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `leaf`
[INFO] [stdout]    --> src/engine.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let leaf = &self[leaf_id];
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_leaf`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `leaf`
[INFO] [stdout]    --> src/engine.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let leaf = &self[leaf_id];
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_leaf`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_material`
[INFO] [stdout]    --> src/board.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn add_material(mut self, material: Material) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_material`
[INFO] [stdout]    --> src/board.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn add_material(mut self, material: Material) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.46s
[INFO] running `Command { std: "docker" "inspect" "8d343305cfabe0389af4ecc090ff92f717e0cdb4142d824ceac6a9fd65c3036f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d343305cfabe0389af4ecc090ff92f717e0cdb4142d824ceac6a9fd65c3036f", kill_on_drop: false }`
[INFO] [stdout] 8d343305cfabe0389af4ecc090ff92f717e0cdb4142d824ceac6a9fd65c3036f