[INFO] fetching crate hexe 0.0.5...
[INFO] checking hexe-0.0.5 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate hexe 0.0.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate hexe 0.0.5 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hexe 0.0.5
[INFO] finished tweaking crates.io crate hexe 0.0.5
[INFO] tweaked toml for crates.io crate hexe 0.0.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0be196efd862896e979ec6774c18292ae98f75337bae24fcba542638e2bf4258
[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" "0be196efd862896e979ec6774c18292ae98f75337bae24fcba542638e2bf4258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0be196efd862896e979ec6774c18292ae98f75337bae24fcba542638e2bf4258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be196efd862896e979ec6774c18292ae98f75337bae24fcba542638e2bf4258", kill_on_drop: false }`
[INFO] [stdout] 0be196efd862896e979ec6774c18292ae98f75337bae24fcba542638e2bf4258
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2965ab7226de836f60a245ba879955ce57ded4e548f8e296542ca417ca41523
[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" "a2965ab7226de836f60a245ba879955ce57ded4e548f8e296542ca417ca41523", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking uncon v1.1.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling uncon_derive v1.1.1
[INFO] [stderr]     Checking hexe_core v0.0.5
[INFO] [stderr]     Checking hexe v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]   --> src/position/mod.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let src = mv.src();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dst`
[INFO] [stdout]   --> src/position/mod.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let dst = mv.dst();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]   --> src/position/mod.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let src = mv.src();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dst`
[INFO] [stdout]   --> src/position/mod.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let dst = mv.dst();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]   --> src/engine/mod.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     position: Position,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_threads`
[INFO] [stdout]    --> src/engine/mod.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     num_threads: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]   --> src/engine/mod.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     position: Position,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_threads`
[INFO] [stdout]    --> src/engine/mod.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     num_threads: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.72s
[INFO] running `Command { std: "docker" "inspect" "a2965ab7226de836f60a245ba879955ce57ded4e548f8e296542ca417ca41523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2965ab7226de836f60a245ba879955ce57ded4e548f8e296542ca417ca41523", kill_on_drop: false }`
[INFO] [stdout] a2965ab7226de836f60a245ba879955ce57ded4e548f8e296542ca417ca41523