Dec 18 18:00:55.080 INFO checking bus_writer-0.1.2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:00:55.080 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/bus_writer/0.1.2:/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 18:00:55.301 INFO [stdout] a56375188162dcbaeeac38a5b9c8118b09dfe0b08ad4fbf68688969f92f94113
Dec 18 18:00:55.306 INFO running `"docker" "start" "-a" "a56375188162dcbaeeac38a5b9c8118b09dfe0b08ad4fbf68688969f92f94113"`
Dec 18 18:00:56.380 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 18 18:00:56.415 INFO [stderr]     Checking bus v2.0.1
Dec 18 18:00:56.952 INFO [stderr]     Checking bus_writer v0.1.2 (/opt/crater/workdir)
Dec 18 18:00:58.200 INFO [stderr] warning: unused import: `BufReader`
Dec 18 18:00:58.200 INFO [stderr]  --> examples/simple.rs:4:15
Dec 18 18:00:58.200 INFO [stderr]   |
Dec 18 18:00:58.200 INFO [stderr] 4 | use std::io::{BufReader, Cursor, Read};
Dec 18 18:00:58.200 INFO [stderr]   |               ^^^^^^^^^
Dec 18 18:00:58.200 INFO [stderr]   |
Dec 18 18:00:58.200 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 18:00:58.200 INFO [stderr] 
Dec 18 18:00:58.200 INFO [stderr] warning: unused import: `File`
Dec 18 18:00:58.200 INFO [stderr]  --> examples/simple.rs:5:21
Dec 18 18:00:58.200 INFO [stderr]   |
Dec 18 18:00:58.200 INFO [stderr] 5 | use std::fs::{self, File};
Dec 18 18:00:58.200 INFO [stderr]   |                     ^^^^
Dec 18 18:00:58.200 INFO [stderr] 
Dec 18 18:00:58.267 INFO [stderr] warning: unused import: `Read`
Dec 18 18:00:58.267 INFO [stderr]  --> examples/simple.rs:4:34
Dec 18 18:00:58.267 INFO [stderr]   |
Dec 18 18:00:58.267 INFO [stderr] 4 | use std::io::{BufReader, Cursor, Read};
Dec 18 18:00:58.267 INFO [stderr]   |                                  ^^^^
Dec 18 18:00:58.267 INFO [stderr] 
Dec 18 18:00:58.452 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Dec 18 18:00:59.120 INFO running `"docker" "inspect" "a56375188162dcbaeeac38a5b9c8118b09dfe0b08ad4fbf68688969f92f94113"`
Dec 18 18:00:59.254 INFO running `"docker" "rm" "-f" "a56375188162dcbaeeac38a5b9c8118b09dfe0b08ad4fbf68688969f92f94113"`
Dec 18 18:00:59.424 INFO [stdout] a56375188162dcbaeeac38a5b9c8118b09dfe0b08ad4fbf68688969f92f94113