[INFO] cloning repository https://github.com/n4o847/nio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/n4o847/nio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn4o847%2Fnio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn4o847%2Fnio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd44907c7ed65c6671a3445f7fc0db6b726c5564
[INFO] checking n4o847/nio against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn4o847%2Fnio" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/n4o847/nio on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/n4o847/nio
[INFO] finished tweaking git repo https://github.com/n4o847/nio
[INFO] tweaked toml for git repo https://github.com/n4o847/nio written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/n4o847/nio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0d72b9b7ebd6a140424213adfbc4cb5393d97b8e293001752efc1a2c9222a1f
[INFO] running `Command { std: "docker" "start" "-a" "e0d72b9b7ebd6a140424213adfbc4cb5393d97b8e293001752efc1a2c9222a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0d72b9b7ebd6a140424213adfbc4cb5393d97b8e293001752efc1a2c9222a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0d72b9b7ebd6a140424213adfbc4cb5393d97b8e293001752efc1a2c9222a1f", kill_on_drop: false }`
[INFO] [stdout] e0d72b9b7ebd6a140424213adfbc4cb5393d97b8e293001752efc1a2c9222a1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7429905f6f97f380de14c5a72d8d3ef68ae9b4f9316362b4d4a813596af91aa7
[INFO] running `Command { std: "docker" "start" "-a" "7429905f6f97f380de14c5a72d8d3ef68ae9b4f9316362b4d4a813596af91aa7", kill_on_drop: false }`
[INFO] [stderr]     Checking nio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]  --> src/wasm/binary/modules.rs:5:33
[INFO] [stdout]   |
[INFO] [stdout] 5 |   pub fn emit_module(&mut self, module: &Module) -> io::Result<()> {
[INFO] [stdout]   |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]  --> src/wasm/binary/modules.rs:5:33
[INFO] [stdout]   |
[INFO] [stdout] 5 |   pub fn emit_module(&mut self, module: &Module) -> io::Result<()> {
[INFO] [stdout]   |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "7429905f6f97f380de14c5a72d8d3ef68ae9b4f9316362b4d4a813596af91aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7429905f6f97f380de14c5a72d8d3ef68ae9b4f9316362b4d4a813596af91aa7", kill_on_drop: false }`
[INFO] [stdout] 7429905f6f97f380de14c5a72d8d3ef68ae9b4f9316362b4d4a813596af91aa7