[INFO] cloning repository https://github.com/AnicetNgrt/zugzwang_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnicetNgrt/zugzwang_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnicetNgrt%2Fzugzwang_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnicetNgrt%2Fzugzwang_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe8f0d04b00c0bc45b7187225970b3a7bbac139b
[INFO] checking AnicetNgrt/zugzwang_rust against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnicetNgrt%2Fzugzwang_rust" "/workspace/builds/worker-86/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnicetNgrt/zugzwang_rust on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AnicetNgrt/zugzwang_rust
[INFO] finished tweaking git repo https://github.com/AnicetNgrt/zugzwang_rust
[INFO] tweaked toml for git repo https://github.com/AnicetNgrt/zugzwang_rust written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate git repo https://github.com/AnicetNgrt/zugzwang_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f292a565b060e4c243ac66ea028e4b62002a96611e65f3a4a1594c044e834e01
[INFO] running `Command { std: "docker" "start" "-a" "f292a565b060e4c243ac66ea028e4b62002a96611e65f3a4a1594c044e834e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f292a565b060e4c243ac66ea028e4b62002a96611e65f3a4a1594c044e834e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f292a565b060e4c243ac66ea028e4b62002a96611e65f3a4a1594c044e834e01", kill_on_drop: false }`
[INFO] [stdout] f292a565b060e4c243ac66ea028e4b62002a96611e65f3a4a1594c044e834e01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08188f931d898223bab56bc3736b59bfd1013672dd543eb786cb619ec4051f92
[INFO] running `Command { std: "docker" "start" "-a" "08188f931d898223bab56bc3736b59bfd1013672dd543eb786cb619ec4051f92", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking zugzwang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `IdleBrain`
[INFO] [stdout]  --> src/main.rs:8:56
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::zugzwang::brains::{DeterministicPawnPlacer, IdleBrain};
[INFO] [stdout]   |                                                        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sub`
[INFO] [stdout]   --> src/zugzwang/util.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn sub(&mut self, x: Size, y: Size) {
[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`
[INFO] [stdout]   --> src/zugzwang/util.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn add(&mut self, x: Size, y: Size) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Card`
[INFO] [stdout]  --> src/zugzwang/card.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Card<'a> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CardArchetype`
[INFO] [stdout]  --> src/zugzwang/card.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CardArchetype {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CardAction`
[INFO] [stdout]   --> src/zugzwang/card.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CardAction {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IdleBrain`
[INFO] [stdout]  --> src/main.rs:8:56
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::zugzwang::brains::{DeterministicPawnPlacer, IdleBrain};
[INFO] [stdout]   |                                                        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sub`
[INFO] [stdout]   --> src/zugzwang/util.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn sub(&mut self, x: Size, y: Size) {
[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`
[INFO] [stdout]   --> src/zugzwang/util.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn add(&mut self, x: Size, y: Size) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Card`
[INFO] [stdout]  --> src/zugzwang/card.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Card<'a> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CardArchetype`
[INFO] [stdout]  --> src/zugzwang/card.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CardArchetype {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CardAction`
[INFO] [stdout]   --> src/zugzwang/card.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CardAction {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "08188f931d898223bab56bc3736b59bfd1013672dd543eb786cb619ec4051f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08188f931d898223bab56bc3736b59bfd1013672dd543eb786cb619ec4051f92", kill_on_drop: false }`
[INFO] [stdout] 08188f931d898223bab56bc3736b59bfd1013672dd543eb786cb619ec4051f92