[INFO] crate snap7-sys 0.1.4 is already in cache
[INFO] checking snap7-sys-0.1.4 against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] extracting crate snap7-sys 0.1.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate snap7-sys 0.1.4 on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate snap7-sys 0.1.4
[INFO] finished tweaking crates.io crate snap7-sys 0.1.4
[INFO] tweaked toml for crates.io crate snap7-sys 0.1.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate snap7-sys 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a712b6bd19479886065ce29ef5121e559fc91287af92414f9c7e41e4214557de
[INFO] running `"docker" "start" "-a" "a712b6bd19479886065ce29ef5121e559fc91287af92414f9c7e41e4214557de"`
[INFO] [stderr]    Compiling snap7-sys v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/simple.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CtlRecord`
[INFO] [stderr]    --> examples/simple.rs:125:8
[INFO] [stderr]     |
[INFO] [stderr] 125 | struct CtlRecord {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.96s
[INFO] running `"docker" "inspect" "a712b6bd19479886065ce29ef5121e559fc91287af92414f9c7e41e4214557de"`
[INFO] running `"docker" "rm" "-f" "a712b6bd19479886065ce29ef5121e559fc91287af92414f9c7e41e4214557de"`
[INFO] [stdout] a712b6bd19479886065ce29ef5121e559fc91287af92414f9c7e41e4214557de