[INFO] fetching crate hexe 0.0.5...
[INFO] checking hexe-0.0.5 against master#de32266a1780aa4ef748ce7f6200a1554fad0aca for pr-75585
[INFO] extracting crate hexe 0.0.5 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate hexe 0.0.5 on toolchain de32266a1780aa4ef748ce7f6200a1554fad0aca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "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-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63de01a48b16210ed5c7f591be9af6e9b2f25c2816817da4c99acec1b158f514
[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" "63de01a48b16210ed5c7f591be9af6e9b2f25c2816817da4c99acec1b158f514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63de01a48b16210ed5c7f591be9af6e9b2f25c2816817da4c99acec1b158f514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63de01a48b16210ed5c7f591be9af6e9b2f25c2816817da4c99acec1b158f514", kill_on_drop: false }`
[INFO] [stdout] 63de01a48b16210ed5c7f591be9af6e9b2f25c2816817da4c99acec1b158f514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa5a70424f9b1e1ae02935b74f3bcf85f6dfd3ec6cf1225276f2a0d5bae68c15
[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" "aa5a70424f9b1e1ae02935b74f3bcf85f6dfd3ec6cf1225276f2a0d5bae68c15", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking uncon v1.1.0
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]    Compiling synom v0.11.3
[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: 4 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.58s
[INFO] running `Command { std: "docker" "inspect" "aa5a70424f9b1e1ae02935b74f3bcf85f6dfd3ec6cf1225276f2a0d5bae68c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa5a70424f9b1e1ae02935b74f3bcf85f6dfd3ec6cf1225276f2a0d5bae68c15", kill_on_drop: false }`
[INFO] [stdout] aa5a70424f9b1e1ae02935b74f3bcf85f6dfd3ec6cf1225276f2a0d5bae68c15