[INFO] crate twiggy-traits 0.6.0 is already in cache
[INFO] checking twiggy-traits-0.6.0 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate twiggy-traits 0.6.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate twiggy-traits 0.6.0 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate twiggy-traits 0.6.0
[INFO] finished tweaking crates.io crate twiggy-traits 0.6.0
[INFO] tweaked toml for crates.io crate twiggy-traits 0.6.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5a4f309a67adad9e300adb514114d2a15590f0dc85548c68be63b55ad3c7a95e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5a4f309a67adad9e300adb514114d2a15590f0dc85548c68be63b55ad3c7a95e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking frozen v1.0.0
[INFO] [stderr]     Checking wasmparser v0.31.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking backtrace-sys v0.1.37
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]    Compiling cpp_demangle v0.2.15
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking twiggy-ir v0.6.0
[INFO] [stderr]     Checking twiggy-traits v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `items`
[INFO] [stderr]    --> traits.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |         items: &ir::Items,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `items`
[INFO] [stderr]    --> traits.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |         items: &ir::Items,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `destination`
[INFO] [stderr]    --> traits.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         destination: &mut dyn io::Write,
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `destination`
[INFO] [stderr]    --> traits.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         destination: &mut dyn io::Write,
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.27s
[INFO] running `"docker" "inspect" "5a4f309a67adad9e300adb514114d2a15590f0dc85548c68be63b55ad3c7a95e"`
[INFO] running `"docker" "rm" "-f" "5a4f309a67adad9e300adb514114d2a15590f0dc85548c68be63b55ad3c7a95e"`
[INFO] [stdout] 5a4f309a67adad9e300adb514114d2a15590f0dc85548c68be63b55ad3c7a95e