Dec 18 12:44:47.926 INFO checking ptree-0.2.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 12:44:47.926 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/ptree/0.2.1:/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 18 12:44:48.089 INFO [stdout] 347fcff87f273be89f0a5c6ad3428fe395e7afec69c3bc2d6ff4caa887b0fe86
Dec 18 12:44:48.094 INFO running `"docker" "start" "-a" "347fcff87f273be89f0a5c6ad3428fe395e7afec69c3bc2d6ff4caa887b0fe86"`
Dec 18 12:44:49.160 INFO [stderr]     Checking tint v1.0.1
Dec 18 12:44:49.165 INFO [stderr]     Checking directories v1.0.2
Dec 18 12:44:49.169 INFO [stderr]     Checking serde v1.0.82
Dec 18 12:44:58.884 INFO [stderr]     Checking serde_json v1.0.33
Dec 18 12:44:58.884 INFO [stderr]     Checking toml v0.4.10
Dec 18 12:44:58.884 INFO [stderr]     Checking serde-value v0.5.3
Dec 18 12:44:58.884 INFO [stderr]     Checking serde_urlencoded v0.5.4
Dec 18 12:44:58.884 INFO [stderr]     Checking serde_yaml v0.7.5
Dec 18 12:44:58.884 INFO [stderr]     Checking serde-xml-any v0.0.3
Dec 18 12:44:58.884 INFO [stderr]     Checking ron v0.3.0
Dec 18 12:45:03.717 INFO [stderr]     Checking version-sync v0.5.0
Dec 18 12:45:04.237 INFO [stderr]     Checking config v0.9.1
Dec 18 12:45:04.237 INFO [stderr]     Checking serde_any v0.5.0
Dec 18 12:45:06.092 INFO [stderr]     Checking ptree v0.2.1 (/opt/crater/workdir)
Dec 18 12:45:12.636 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 12:45:12.636 INFO [stderr]  --> examples/serde.rs:5:1
Dec 18 12:45:12.636 INFO [stderr]   |
Dec 18 12:45:12.636 INFO [stderr] 5 | #[macro_use]
Dec 18 12:45:12.636 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 12:45:12.636 INFO [stderr]   |
Dec 18 12:45:12.636 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 12:45:12.636 INFO [stderr] 
Dec 18 12:45:13.102 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.16s
Dec 18 12:45:14.084 INFO running `"docker" "inspect" "347fcff87f273be89f0a5c6ad3428fe395e7afec69c3bc2d6ff4caa887b0fe86"`
Dec 18 12:45:14.426 INFO running `"docker" "rm" "-f" "347fcff87f273be89f0a5c6ad3428fe395e7afec69c3bc2d6ff4caa887b0fe86"`
Dec 18 12:45:14.683 INFO [stdout] 347fcff87f273be89f0a5c6ad3428fe395e7afec69c3bc2d6ff4caa887b0fe86