[INFO] fetching crate rusta 0.0.2...
[INFO] checking rusta-0.0.2 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate rusta 0.0.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rusta 0.0.2 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rusta 0.0.2
[INFO] finished tweaking crates.io crate rusta 0.0.2
[INFO] tweaked toml for crates.io crate rusta 0.0.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] b2c2765db7561b6a46ee4952f7ee0a7d6cebd0a75d3e7fd2bfdd1d6c87964dd4
[INFO] running `"docker" "start" "-a" "b2c2765db7561b6a46ee4952f7ee0a7d6cebd0a75d3e7fd2bfdd1d6c87964dd4"`
[INFO] [stderr]     Checking rusta v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: enum is never used: `FileReadMemorySettings`
[INFO] [stderr]  --> src/config/mod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub enum FileReadMemorySettings {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FileReadConcurrencySettings`
[INFO] [stderr]   --> src/config/mod.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub enum FileReadConcurrencySettings {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ParsingPropertiesMode`
[INFO] [stderr]   --> src/config/mod.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub enum ParsingPropertiesMode {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ParsingSettings`
[INFO] [stderr]   --> src/config/mod.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct ParsingSettings {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_parser_builder`
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn new_parser_builder() -> config::ParsingSettings {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FileReadMemorySettings`
[INFO] [stderr]  --> src/config/mod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub enum FileReadMemorySettings {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FileReadConcurrencySettings`
[INFO] [stderr]   --> src/config/mod.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub enum FileReadConcurrencySettings {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ParsingPropertiesMode`
[INFO] [stderr]   --> src/config/mod.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub enum ParsingPropertiesMode {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ParsingSettings`
[INFO] [stderr]   --> src/config/mod.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct ParsingSettings {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_parser_builder`
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn new_parser_builder() -> config::ParsingSettings {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "b2c2765db7561b6a46ee4952f7ee0a7d6cebd0a75d3e7fd2bfdd1d6c87964dd4"`
[INFO] running `"docker" "rm" "-f" "b2c2765db7561b6a46ee4952f7ee0a7d6cebd0a75d3e7fd2bfdd1d6c87964dd4"`
[INFO] [stdout] b2c2765db7561b6a46ee4952f7ee0a7d6cebd0a75d3e7fd2bfdd1d6c87964dd4