[INFO] crate xc2bit 0.0.4 is already in cache
[INFO] checking xc2bit-0.0.4 against try#3ae4c050387df9f7fbb379ee90ce8bf05e566870 for pr-70872
[INFO] extracting crate xc2bit 0.0.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate xc2bit 0.0.4 on toolchain 3ae4c050387df9f7fbb379ee90ce8bf05e566870
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate xc2bit 0.0.4
[INFO] finished tweaking crates.io crate xc2bit 0.0.4
[INFO] tweaked toml for crates.io crate xc2bit 0.0.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate xc2bit 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "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" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c734b82a7087cf6deca8f6e9b61bb5138d9584783fb44530943e88859524670a
[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" "c734b82a7087cf6deca8f6e9b61bb5138d9584783fb44530943e88859524670a"`
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]    Compiling xc2bit v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking jedec v0.0.3
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling bittwiddler v0.0.2
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking yosys-netlist-json v0.0.3
[INFO] [stderr] warning: function is never used: `run_one_reftest`
[INFO] [stderr]    --> src/lib.rs:123:8
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn run_one_reftest(jed_filename: &'static str) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/bin/xc2jed2json.rs:194:45
[INFO] [stderr]     |
[INFO] [stderr] 194 |                         let orig_wire_idx = {*wire_idx.borrow()};
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/bin/xc2jed2json.rs:234:45
[INFO] [stderr]     |
[INFO] [stderr] 234 |                         let orig_wire_idx = {*wire_idx.borrow()};
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/bin/xc2jed2json.rs:401:33
[INFO] [stderr]     |
[INFO] [stderr] 401 |             let orig_wire_idx = {*wire_idx.borrow()};
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/bin/xc2jed2json.rs:194:45
[INFO] [stderr]     |
[INFO] [stderr] 194 |                         let orig_wire_idx = {*wire_idx.borrow()};
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/bin/xc2jed2json.rs:234:45
[INFO] [stderr]     |
[INFO] [stderr] 234 |                         let orig_wire_idx = {*wire_idx.borrow()};
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/bin/xc2jed2json.rs:401:33
[INFO] [stderr]     |
[INFO] [stderr] 401 |             let orig_wire_idx = {*wire_idx.borrow()};
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.85s
[INFO] running `"docker" "inspect" "c734b82a7087cf6deca8f6e9b61bb5138d9584783fb44530943e88859524670a"`
[INFO] running `"docker" "rm" "-f" "c734b82a7087cf6deca8f6e9b61bb5138d9584783fb44530943e88859524670a"`
[INFO] [stdout] c734b82a7087cf6deca8f6e9b61bb5138d9584783fb44530943e88859524670a