[INFO] cloning repository https://github.com/chenzhc/chesscomputer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chenzhc/chesscomputer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzhc%2Fchesscomputer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzhc%2Fchesscomputer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62bcddfd33cd5f46adf2cb87e8a9ac4b389ab6bf
[INFO] checking chenzhc/chesscomputer against master#03c609abb6638f9d7f49f34326d4137d07f5cd61 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzhc%2Fchesscomputer" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chenzhc/chesscomputer
[INFO] finished tweaking git repo https://github.com/chenzhc/chesscomputer
[INFO] tweaked toml for git repo https://github.com/chenzhc/chesscomputer written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chenzhc/chesscomputer on toolchain 03c609abb6638f9d7f49f34326d4137d07f5cd61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chenzhc/chesscomputer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a6fa54d110e69cd92e5a9c0a70956fab05f94272b4c9fbe9477684c7b964cbe
[INFO] running `Command { std: "docker" "start" "-a" "4a6fa54d110e69cd92e5a9c0a70956fab05f94272b4c9fbe9477684c7b964cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a6fa54d110e69cd92e5a9c0a70956fab05f94272b4c9fbe9477684c7b964cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a6fa54d110e69cd92e5a9c0a70956fab05f94272b4c9fbe9477684c7b964cbe", kill_on_drop: false }`
[INFO] [stdout] 4a6fa54d110e69cd92e5a9c0a70956fab05f94272b4c9fbe9477684c7b964cbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da6e2b602517d5c20230eddea61e80360e5470680f710ae65b7cdcd21f00ef56
[INFO] running `Command { std: "docker" "start" "-a" "da6e2b602517d5c20230eddea61e80360e5470680f710ae65b7cdcd21f00ef56", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
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[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling chrono-tz v0.10.4
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[INFO] [stderr]    Compiling serde v1.0.219
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[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]     Checking allocator-api2 v0.2.21
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[INFO] [stderr]    Compiling bzip2-sys v0.1.13+1.0.8
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[INFO] [stderr]     Checking cpufeatures v0.2.17
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]    Compiling blake3 v1.8.2
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[INFO] [stderr]     Checking bytemuck v1.23.2
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[INFO] [stderr]     Checking atomic v0.6.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.35.0
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[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
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[INFO] [stderr]    Compiling zeroize_derive v1.4.2
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[INFO] [stderr]    Compiling zip v2.4.2
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[INFO] [stderr]    Compiling derive_more-impl v2.0.1
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[INFO] [stderr]     Checking datafusion-execution v49.0.2
[INFO] [stderr]     Checking datafusion-sql v49.0.2
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[INFO] [stderr]    Compiling test-log-macros v0.2.18
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[INFO] [stderr]     Checking datafusion-session v49.0.2
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[INFO] [stderr]     Checking datafusion-catalog v49.0.2
[INFO] [stderr]     Checking datafusion-pruning v49.0.0
[INFO] [stderr]     Checking datafusion-physical-optimizer v49.0.2
[INFO] [stderr]     Checking pretty-sqlite v0.3.0
[INFO] [stderr]    Compiling datafusion-macros v49.0.2
[INFO] [stderr]     Checking datafusion-functions-aggregate v49.0.2
[INFO] [stderr]     Checking datafusion-functions v49.0.2
[INFO] [stderr]     Checking datafusion-functions-window v49.0.2
[INFO] [stderr]     Checking datafusion-functions-nested v49.0.2
[INFO] [stderr]     Checking datafusion-datasource-parquet v49.0.2
[INFO] [stderr]     Checking datafusion-datasource-json v49.0.2
[INFO] [stderr]     Checking datafusion-datasource-csv v49.0.2
[INFO] [stderr]     Checking datafusion-functions-table v49.0.2
[INFO] [stderr]     Checking datafusion-catalog-listing v49.0.2
[INFO] [stderr]     Checking datafusion v49.0.2
[INFO] [stderr]     Checking chesscomputer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/mythreads.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         x += i;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/mythreads.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             x += i;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/mythreads.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         x += i;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/mythreads.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             x += i;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6m 11s
[INFO] running `Command { std: "docker" "inspect" "da6e2b602517d5c20230eddea61e80360e5470680f710ae65b7cdcd21f00ef56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da6e2b602517d5c20230eddea61e80360e5470680f710ae65b7cdcd21f00ef56", kill_on_drop: false }`
[INFO] [stdout] da6e2b602517d5c20230eddea61e80360e5470680f710ae65b7cdcd21f00ef56
