Dec 19 14:33:28.894 INFO checking kbacha/json_serde_test against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 14:33:28.894 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/kbacha/json_serde_test:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:33:29.144 INFO [stdout] 0c99d34c8165414ba739f2879278fd0e2a752f84b884111c99d7726668f48db2
Dec 19 14:33:29.146 INFO running `"docker" "start" "-a" "0c99d34c8165414ba739f2879278fd0e2a752f84b884111c99d7726668f48db2"`
Dec 19 14:33:29.796 INFO [stderr]     Checking json_testing v0.1.0 (/opt/crater/workdir)
Dec 19 14:33:30.076 INFO [stderr] warning: unused import: `Read`
Dec 19 14:33:30.076 INFO [stderr]  --> src/main.rs:7:21
Dec 19 14:33:30.076 INFO [stderr]   |
Dec 19 14:33:30.076 INFO [stderr] 7 | use std::io::{self, Read};
Dec 19 14:33:30.076 INFO [stderr]   |                     ^^^^
Dec 19 14:33:30.076 INFO [stderr]   |
Dec 19 14:33:30.076 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 14:33:30.076 INFO [stderr] 
Dec 19 14:33:30.076 INFO [stderr] warning: unused import: `Read`
Dec 19 14:33:30.076 INFO [stderr]  --> src/main.rs:7:21
Dec 19 14:33:30.076 INFO [stderr]   |
Dec 19 14:33:30.076 INFO [stderr] 7 | use std::io::{self, Read};
Dec 19 14:33:30.076 INFO [stderr]   |                     ^^^^
Dec 19 14:33:30.076 INFO [stderr]   |
Dec 19 14:33:30.076 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 14:33:30.076 INFO [stderr] 
Dec 19 14:33:30.226 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Dec 19 14:33:30.605 INFO running `"docker" "inspect" "0c99d34c8165414ba739f2879278fd0e2a752f84b884111c99d7726668f48db2"`
Dec 19 14:33:30.686 INFO running `"docker" "rm" "-f" "0c99d34c8165414ba739f2879278fd0e2a752f84b884111c99d7726668f48db2"`
Dec 19 14:33:30.753 INFO [stdout] 0c99d34c8165414ba739f2879278fd0e2a752f84b884111c99d7726668f48db2