Dec 04 10:04:35.093 INFO checking sinitcin/poll_devices against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 10:04:35.093 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 10:04:35.579 INFO [stdout] 53dd05f97b357f163c81407cccaf62623b39a40eb5ea056a4e9328419056603e
Dec 04 10:04:35.581 INFO running `"docker" "start" "-a" "53dd05f97b357f163c81407cccaf62623b39a40eb5ea056a4e9328419056603e"`
Dec 04 10:04:37.166 INFO [stderr] usermod: no changes
Dec 04 10:04:37.367 INFO [stderr]     Checking termios v0.2.2
Dec 04 10:04:37.367 INFO [stderr]     Checking serial-core v0.4.0
Dec 04 10:04:37.367 INFO [stderr]     Checking ioctl-rs v0.1.6
Dec 04 10:04:37.367 INFO [stderr]    Compiling libsqlite3-sys v0.9.3
Dec 04 10:04:37.375 INFO [stderr]     Checking libconfig v0.1.0 (/source/libconfig)
Dec 04 10:04:37.375 INFO [stderr]     Checking uuid v0.5.1
Dec 04 10:04:38.525 INFO [stderr]     Checking serial-unix v0.4.0
Dec 04 10:04:38.999 INFO [stderr]     Checking serial v0.4.0
Dec 04 10:04:39.446 INFO [stderr]     Checking libengine v0.1.0 (/source/libengine)
Dec 04 10:04:39.846 INFO [stderr] warning: unused import: `Read`
Dec 04 10:04:39.846 INFO [stderr]  --> libengine/src/engine.rs:9:21
Dec 04 10:04:39.846 INFO [stderr]   |
Dec 04 10:04:39.846 INFO [stderr] 9 | use std::io::{self, Read};
Dec 04 10:04:39.846 INFO [stderr]   |                     ^^^^
Dec 04 10:04:39.846 INFO [stderr]   |
Dec 04 10:04:39.846 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 10:04:39.846 INFO [stderr] 
Dec 04 10:04:39.846 INFO [stderr] warning: unused import: `std::num`
Dec 04 10:04:39.846 INFO [stderr]   --> libengine/src/engine.rs:10:5
Dec 04 10:04:39.846 INFO [stderr]    |
Dec 04 10:04:39.846 INFO [stderr] 10 | use std::num;
Dec 04 10:04:39.846 INFO [stderr]    |     ^^^^^^^^
Dec 04 10:04:39.846 INFO [stderr] 
Dec 04 10:04:39.871 INFO [stderr] warning: unused import: `Read`
Dec 04 10:04:39.871 INFO [stderr]  --> libengine/src/engine.rs:9:21
Dec 04 10:04:39.871 INFO [stderr]   |
Dec 04 10:04:39.871 INFO [stderr] 9 | use std::io::{self, Read};
Dec 04 10:04:39.871 INFO [stderr]   |                     ^^^^
Dec 04 10:04:39.871 INFO [stderr]   |
Dec 04 10:04:39.871 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 10:04:39.871 INFO [stderr] 
Dec 04 10:04:39.871 INFO [stderr] warning: unused import: `std::num`
Dec 04 10:04:39.871 INFO [stderr]   --> libengine/src/engine.rs:10:5
Dec 04 10:04:39.871 INFO [stderr]    |
Dec 04 10:04:39.871 INFO [stderr] 10 | use std::num;
Dec 04 10:04:39.871 INFO [stderr]    |     ^^^^^^^^
Dec 04 10:04:39.871 INFO [stderr] 
Dec 04 10:04:39.988 INFO [stderr] warning: the feature `int_to_from_bytes` has been stable since 1.32.0 and no longer requires an attribute to enable
Dec 04 10:04:39.988 INFO [stderr]  --> libengine/src/lib.rs:1:12
Dec 04 10:04:39.988 INFO [stderr]   |
Dec 04 10:04:39.989 INFO [stderr] 1 | #![feature(int_to_from_bytes)]
Dec 04 10:04:39.989 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 04 10:04:40.015 INFO [stderr]   |
Dec 04 10:04:40.015 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 10:04:40.015 INFO [stderr] 
Dec 04 10:04:40.020 INFO [stderr] warning: the feature `int_to_from_bytes` has been stable since 1.32.0 and no longer requires an attribute to enable
Dec 04 10:04:40.020 INFO [stderr]  --> libengine/src/lib.rs:1:12
Dec 04 10:04:40.020 INFO [stderr]   |
Dec 04 10:04:40.020 INFO [stderr] 1 | #![feature(int_to_from_bytes)]
Dec 04 10:04:40.020 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 04 10:04:40.020 INFO [stderr]   |
Dec 04 10:04:40.020 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 10:04:40.020 INFO [stderr] 
Dec 04 10:04:40.048 INFO [stderr]     Checking libmercury v0.1.0 (/source/libmercury)
Dec 04 10:04:40.048 INFO [stderr]     Checking libdbgserver v0.1.0 (/source/libdbgserver)
Dec 04 10:04:40.048 INFO [stderr]     Checking libcomchannel v0.1.0 (/source/libcomchannel)
Dec 04 10:04:41.139 INFO [stderr] warning: the feature `int_to_from_bytes` has been stable since 1.32.0 and no longer requires an attribute to enable
Dec 04 10:04:41.139 INFO [stderr]  --> libmercury/src/lib.rs:1:12
Dec 04 10:04:41.139 INFO [stderr]   |
Dec 04 10:04:41.139 INFO [stderr] 1 | #![feature(int_to_from_bytes)]
Dec 04 10:04:41.139 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 04 10:04:41.139 INFO [stderr]   |
Dec 04 10:04:41.139 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 10:04:41.139 INFO [stderr] 
Dec 04 10:04:41.702 INFO [stderr] warning: the feature `int_to_from_bytes` has been stable since 1.32.0 and no longer requires an attribute to enable
Dec 04 10:04:41.702 INFO [stderr]  --> libmercury/src/lib.rs:1:12
Dec 04 10:04:41.702 INFO [stderr]   |
Dec 04 10:04:41.702 INFO [stderr] 1 | #![feature(int_to_from_bytes)]
Dec 04 10:04:41.703 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 04 10:04:41.727 INFO [stderr]   |
Dec 04 10:04:41.727 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 10:04:41.727 INFO [stderr] 
Dec 04 10:04:49.958 INFO [stderr]     Checking rusqlite v0.14.0
Dec 04 10:04:51.087 INFO [stderr]     Checking libdb v0.1.0 (/source/libdb)
Dec 04 10:04:51.415 INFO [stderr]     Checking pdd v0.1.0 (/source)
Dec 04 10:04:52.194 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.98s
Dec 04 10:04:52.211 INFO [stderr] su: No module specific data is present
Dec 04 10:04:52.837 INFO running `"docker" "inspect" "53dd05f97b357f163c81407cccaf62623b39a40eb5ea056a4e9328419056603e"`
Dec 04 10:04:52.987 INFO running `"docker" "rm" "-f" "53dd05f97b357f163c81407cccaf62623b39a40eb5ea056a4e9328419056603e"`
Dec 04 10:04:53.171 INFO [stdout] 53dd05f97b357f163c81407cccaf62623b39a40eb5ea056a4e9328419056603e