[INFO] fetching crate twiggy-traits 0.6.0...
[INFO] testing twiggy-traits-0.6.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate twiggy-traits 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate twiggy-traits 0.6.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 50be8ef39c5b85384d686725ec8a22752dadd3f95b7333015331db0af9579719
[INFO] running `"docker" "start" "-a" "50be8ef39c5b85384d686725ec8a22752dadd3f95b7333015331db0af9579719"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling frozen v1.0.0
[INFO] [stderr]    Compiling wasmparser v0.31.1
[INFO] [stderr]    Compiling cpp_demangle v0.2.16
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling twiggy-ir v0.6.0
[INFO] [stderr]    Compiling 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: `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]     Finished dev [unoptimized + debuginfo] target(s) in 18.46s
[INFO] running `"docker" "inspect" "50be8ef39c5b85384d686725ec8a22752dadd3f95b7333015331db0af9579719"`
[INFO] running `"docker" "rm" "-f" "50be8ef39c5b85384d686725ec8a22752dadd3f95b7333015331db0af9579719"`
[INFO] [stdout] 50be8ef39c5b85384d686725ec8a22752dadd3f95b7333015331db0af9579719
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 05a8726c2d14726d574c6d23a2f72baee7d5d05a389de315362c698b49a46c5b
[INFO] running `"docker" "start" "-a" "05a8726c2d14726d574c6d23a2f72baee7d5d05a389de315362c698b49a46c5b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling 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: `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: 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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "05a8726c2d14726d574c6d23a2f72baee7d5d05a389de315362c698b49a46c5b"`
[INFO] running `"docker" "rm" "-f" "05a8726c2d14726d574c6d23a2f72baee7d5d05a389de315362c698b49a46c5b"`
[INFO] [stdout] 05a8726c2d14726d574c6d23a2f72baee7d5d05a389de315362c698b49a46c5b
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cdb25da1832414433e9b93bde47115a31bacf60dc4a8966c31a7e263a7448b87
[INFO] running `"docker" "start" "-a" "cdb25da1832414433e9b93bde47115a31bacf60dc4a8966c31a7e263a7448b87"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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: 2 warnings emitted
[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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/twiggy_traits-e4346bc3c79f8cb4
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test size_of_error_is_one_word ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twiggy-traits
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "cdb25da1832414433e9b93bde47115a31bacf60dc4a8966c31a7e263a7448b87"`
[INFO] running `"docker" "rm" "-f" "cdb25da1832414433e9b93bde47115a31bacf60dc4a8966c31a7e263a7448b87"`
[INFO] [stdout] cdb25da1832414433e9b93bde47115a31bacf60dc4a8966c31a7e263a7448b87