[INFO] cloning repository https://github.com/INDAPlus21/eliased-chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/INDAPlus21/eliased-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FINDAPlus21%2Feliased-chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FINDAPlus21%2Feliased-chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce623867149108b5420e0f0cbb6de63f806c8e87
[INFO] checking INDAPlus21/eliased-chess against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FINDAPlus21%2Feliased-chess" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/INDAPlus21/eliased-chess on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/INDAPlus21/eliased-chess
[INFO] finished tweaking git repo https://github.com/INDAPlus21/eliased-chess
[INFO] tweaked toml for git repo https://github.com/INDAPlus21/eliased-chess written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7368c2b06d0e3b13ba3c076f5d8ee0531ced23cb25cbb6e21b709e07cdeeea9
[INFO] running `Command { std: "docker" "start" "-a" "d7368c2b06d0e3b13ba3c076f5d8ee0531ced23cb25cbb6e21b709e07cdeeea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7368c2b06d0e3b13ba3c076f5d8ee0531ced23cb25cbb6e21b709e07cdeeea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7368c2b06d0e3b13ba3c076f5d8ee0531ced23cb25cbb6e21b709e07cdeeea9", kill_on_drop: false }`
[INFO] [stdout] d7368c2b06d0e3b13ba3c076f5d8ee0531ced23cb25cbb6e21b709e07cdeeea9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b723bfb32aafa3ec8c80d64be6ada3574cc5f1e6bb42d716baa10920ae53beb0
[INFO] running `Command { std: "docker" "start" "-a" "b723bfb32aafa3ec8c80d64be6ada3574cc5f1e6bb42d716baa10920ae53beb0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking eliased-chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `promotion_position`
[INFO] [stdout]    --> src/lib.rs:653:21
[INFO] [stdout]     |
[INFO] [stdout] 653 |                 let promotion_position = if own_color == Color::Black { 7 } else { 0 };
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_promotion_position`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `promotion_position`
[INFO] [stdout]    --> src/lib.rs:653:21
[INFO] [stdout]     |
[INFO] [stdout] 653 |                 let promotion_position = if own_color == Color::Black { 7 } else { 0 };
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_promotion_position`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:808:21
[INFO] [stdout]     |
[INFO] [stdout] 808 |                 for mut i in 0..converted_new_vector.iter().count() {
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:808:21
[INFO] [stdout]     |
[INFO] [stdout] 808 |                 for mut i in 0..converted_new_vector.iter().count() {
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 4.20s
[INFO] running `Command { std: "docker" "inspect" "b723bfb32aafa3ec8c80d64be6ada3574cc5f1e6bb42d716baa10920ae53beb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b723bfb32aafa3ec8c80d64be6ada3574cc5f1e6bb42d716baa10920ae53beb0", kill_on_drop: false }`
[INFO] [stdout] b723bfb32aafa3ec8c80d64be6ada3574cc5f1e6bb42d716baa10920ae53beb0