Dec 17 17:25:03.109 INFO checking qultist/tasty-json against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 17:25:03.109 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/qultist/tasty-json:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 17:25:03.638 INFO [stdout] 1121b8152b2c92d1d106c943304df0597535dfb488d39952d2e03bbd631d92e7
Dec 17 17:25:03.640 INFO running `"docker" "start" "-a" "1121b8152b2c92d1d106c943304df0597535dfb488d39952d2e03bbd631d92e7"`
Dec 17 17:25:06.087 INFO [stderr]     Checking regex v1.0.0
Dec 17 17:25:08.177 INFO [stderr]     Checking nom v4.0.0
Dec 17 17:25:10.009 INFO [stderr]     Checking tasty-json v0.1.0 (/opt/crater/workdir)
Dec 17 17:25:10.422 INFO [stderr] warning: unused import: `std::env`
Dec 17 17:25:10.422 INFO [stderr]  --> src/main.rs:8:5
Dec 17 17:25:10.422 INFO [stderr]   |
Dec 17 17:25:10.422 INFO [stderr] 8 | use std::env;
Dec 17 17:25:10.422 INFO [stderr]   |     ^^^^^^^^
Dec 17 17:25:10.422 INFO [stderr]   |
Dec 17 17:25:10.429 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 17:25:10.432 INFO [stderr] 
Dec 17 17:25:10.448 INFO [stderr] warning: unused import: `std::env`
Dec 17 17:25:10.448 INFO [stderr]  --> src/main.rs:8:5
Dec 17 17:25:10.448 INFO [stderr]   |
Dec 17 17:25:10.448 INFO [stderr] 8 | use std::env;
Dec 17 17:25:10.448 INFO [stderr]   |     ^^^^^^^^
Dec 17 17:25:10.448 INFO [stderr]   |
Dec 17 17:25:10.448 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 17:25:10.448 INFO [stderr] 
Dec 17 17:25:10.846 INFO [stderr] warning: method is never used: `as_f64`
Dec 17 17:25:10.846 INFO [stderr]   --> src/json.rs:26:5
Dec 17 17:25:10.846 INFO [stderr]    |
Dec 17 17:25:10.846 INFO [stderr] 26 |     pub fn as_f64(&self) -> Option<f64> {
Dec 17 17:25:10.846 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:25:10.846 INFO [stderr]    |
Dec 17 17:25:10.846 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 17:25:10.846 INFO [stderr] 
Dec 17 17:25:10.846 INFO [stderr] warning: method is never used: `as_vec`
Dec 17 17:25:10.846 INFO [stderr]   --> src/json.rs:42:5
Dec 17 17:25:10.846 INFO [stderr]    |
Dec 17 17:25:10.846 INFO [stderr] 42 |     pub fn as_vec(&self) -> Option<Vec<Value>> {
Dec 17 17:25:10.846 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:25:10.846 INFO [stderr] 
Dec 17 17:25:10.846 INFO [stderr] warning: method is never used: `as_bool`
Dec 17 17:25:10.846 INFO [stderr]   --> src/json.rs:50:5
Dec 17 17:25:10.846 INFO [stderr]    |
Dec 17 17:25:10.846 INFO [stderr] 50 |     pub fn as_bool(&self) -> Option<bool> {
Dec 17 17:25:10.846 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:25:10.846 INFO [stderr] 
Dec 17 17:25:10.915 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.92s
Dec 17 17:25:11.741 INFO running `"docker" "inspect" "1121b8152b2c92d1d106c943304df0597535dfb488d39952d2e03bbd631d92e7"`
Dec 17 17:25:11.984 INFO running `"docker" "rm" "-f" "1121b8152b2c92d1d106c943304df0597535dfb488d39952d2e03bbd631d92e7"`
Dec 17 17:25:12.284 INFO [stdout] 1121b8152b2c92d1d106c943304df0597535dfb488d39952d2e03bbd631d92e7