[INFO] cloning repository https://github.com/MyK00L/zerosumrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MyK00L/zerosumrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMyK00L%2Fzerosumrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMyK00L%2Fzerosumrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed3913c2cb00adc67804290aaee156d45810b2af
[INFO] checking MyK00L/zerosumrs against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMyK00L%2Fzerosumrs" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MyK00L/zerosumrs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MyK00L/zerosumrs
[INFO] finished tweaking git repo https://github.com/MyK00L/zerosumrs
[INFO] tweaked toml for git repo https://github.com/MyK00L/zerosumrs written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xoshiro v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 174b2429243bf3bd62f162785c786cd40c1ba2088e864ce0fc8384c91025a2cf
[INFO] running `Command { std: "docker" "start" "-a" "174b2429243bf3bd62f162785c786cd40c1ba2088e864ce0fc8384c91025a2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "174b2429243bf3bd62f162785c786cd40c1ba2088e864ce0fc8384c91025a2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "174b2429243bf3bd62f162785c786cd40c1ba2088e864ce0fc8384c91025a2cf", kill_on_drop: false }`
[INFO] [stdout] 174b2429243bf3bd62f162785c786cd40c1ba2088e864ce0fc8384c91025a2cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 304977f76ade331a7e2bc4d95aeb919ec9785c1d08baeadd99a201450a7c5476
[INFO] running `Command { std: "docker" "start" "-a" "304977f76ade331a7e2bc4d95aeb919ec9785c1d08baeadd99a201450a7c5476", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]     Checking ppv-lite86 v0.2.14
[INFO] [stderr]     Checking rustc-hash v1.1.0
[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_xoshiro v0.6.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking zerosumrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::minimax_final::*`
[INFO] [stdout]    --> src/lib.rs:167:6
[INFO] [stdout]     |
[INFO] [stdout] 167 |     use crate::minimax_final::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::minimax_fixed::*`
[INFO] [stdout]    --> src/lib.rs:168:6
[INFO] [stdout]     |
[INFO] [stdout] 168 |     use crate::minimax_fixed::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::minimax_hard::*`
[INFO] [stdout]    --> src/lib.rs:169:6
[INFO] [stdout]     |
[INFO] [stdout] 169 |     use crate::minimax_hard::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::minimax_killer::*`
[INFO] [stdout]    --> src/lib.rs:170:6
[INFO] [stdout]     |
[INFO] [stdout] 170 |     use crate::minimax_killer::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::minimax_simple::*`
[INFO] [stdout]    --> src/lib.rs:172:6
[INFO] [stdout]     |
[INFO] [stdout] 172 |     use crate::minimax_simple::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::monte_carlo_total::*`
[INFO] [stdout]    --> src/lib.rs:173:6
[INFO] [stdout]     |
[INFO] [stdout] 173 |     use crate::monte_carlo_total::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::monte_carlo_tree_search::*`
[INFO] [stdout]    --> src/lib.rs:174:6
[INFO] [stdout]     |
[INFO] [stdout] 174 |     use crate::monte_carlo_tree_search::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zerosumrs` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "304977f76ade331a7e2bc4d95aeb919ec9785c1d08baeadd99a201450a7c5476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304977f76ade331a7e2bc4d95aeb919ec9785c1d08baeadd99a201450a7c5476", kill_on_drop: false }`
[INFO] [stdout] 304977f76ade331a7e2bc4d95aeb919ec9785c1d08baeadd99a201450a7c5476
