[INFO] fetching crate lain_derive 0.4.1...
[INFO] testing lain_derive-0.4.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate lain_derive 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate lain_derive 0.4.1 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lain_derive 0.4.1
[INFO] finished tweaking crates.io crate lain_derive 0.4.1
[INFO] tweaked toml for crates.io crate lain_derive 0.4.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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=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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] d80dbcd73eacee66145f8f412a3eb6a5fc16358e15c41aae1b3d3099d9853075
[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" "d80dbcd73eacee66145f8f412a3eb6a5fc16358e15c41aae1b3d3099d9853075"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-hack v0.4.2
[INFO] [stderr]    Compiling mashup-impl v0.1.9
[INFO] [stderr]    Compiling mashup v0.1.9
[INFO] [stderr]    Compiling lain_derive v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `field_max_items`
[INFO] [stderr]    --> src/mutations.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |     let field_max_items = field.attrs.min().unwrap_or(&zero_tokens);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_max_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.28s
[INFO] running `"docker" "inspect" "d80dbcd73eacee66145f8f412a3eb6a5fc16358e15c41aae1b3d3099d9853075"`
[INFO] running `"docker" "rm" "-f" "d80dbcd73eacee66145f8f412a3eb6a5fc16358e15c41aae1b3d3099d9853075"`
[INFO] [stdout] d80dbcd73eacee66145f8f412a3eb6a5fc16358e15c41aae1b3d3099d9853075
[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=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" "+beta-2020-06-03" "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] 6820964eaadbc1b113253b3dcebb31f338a8df6f4929d0968d374d3a0c62f6f0
[INFO] running `"docker" "start" "-a" "6820964eaadbc1b113253b3dcebb31f338a8df6f4929d0968d374d3a0c62f6f0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lain_derive v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `field_max_items`
[INFO] [stderr]    --> src/mutations.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |     let field_max_items = field.attrs.min().unwrap_or(&zero_tokens);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_max_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `field_max_items`
[INFO] [stderr]    --> src/mutations.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |     let field_max_items = field.attrs.min().unwrap_or(&zero_tokens);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_max_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `"docker" "inspect" "6820964eaadbc1b113253b3dcebb31f338a8df6f4929d0968d374d3a0c62f6f0"`
[INFO] running `"docker" "rm" "-f" "6820964eaadbc1b113253b3dcebb31f338a8df6f4929d0968d374d3a0c62f6f0"`
[INFO] [stdout] 6820964eaadbc1b113253b3dcebb31f338a8df6f4929d0968d374d3a0c62f6f0
[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=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" "+beta-2020-06-03" "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] 94da595e9041f889404c96a536482dcbafa70091f0b6de1d830960ff17c57563
[INFO] running `"docker" "start" "-a" "94da595e9041f889404c96a536482dcbafa70091f0b6de1d830960ff17c57563"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `field_max_items`
[INFO] [stderr]    --> src/mutations.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |     let field_max_items = field.attrs.min().unwrap_or(&zero_tokens);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_max_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `field_max_items`
[INFO] [stderr]    --> src/mutations.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |     let field_max_items = field.attrs.min().unwrap_or(&zero_tokens);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_max_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lain_derive-d8d4a7cd45a10d4b
[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] [stderr]    Doc-tests lain_derive
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - new_fuzzed (line 36) ... ok
[INFO] [stdout] test src/lib.rs - mutatable_helper (line 120) ... ok
[INFO] [stdout] test src/lib.rs - binary_serialize (line 62) ... ok
[INFO] [stdout] test src/lib.rs - variable_size_object (line 159) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "94da595e9041f889404c96a536482dcbafa70091f0b6de1d830960ff17c57563"`
[INFO] running `"docker" "rm" "-f" "94da595e9041f889404c96a536482dcbafa70091f0b6de1d830960ff17c57563"`
[INFO] [stdout] 94da595e9041f889404c96a536482dcbafa70091f0b6de1d830960ff17c57563