Nov 27 18:58:12.242 INFO checking tercen/rustson against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 18:58:12.244 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 27 18:58:12.808 INFO [stdout] cde339fc308709e9b7b4d7fdd3eea1ac96da40fcd425fbe671677e8b5bc9e31e
Nov 27 18:58:12.816 INFO running `"docker" "start" "-a" "cde339fc308709e9b7b4d7fdd3eea1ac96da40fcd425fbe671677e8b5bc9e31e"`
Nov 27 18:58:14.040 INFO [stderr] usermod: no changes
Nov 27 18:58:14.145 INFO [stderr]     Checking rustson v0.1.0 (/source)
Nov 27 18:58:14.612 INFO [stderr] warning: unused import: `std::fs::File`
Nov 27 18:58:14.612 INFO [stderr]    --> src/lib.rs:456:9
Nov 27 18:58:14.612 INFO [stderr]     |
Nov 27 18:58:14.612 INFO [stderr] 456 |     use std::fs::File;
Nov 27 18:58:14.612 INFO [stderr]     |         ^^^^^^^^^^^^^
Nov 27 18:58:14.612 INFO [stderr]     |
Nov 27 18:58:14.612 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 27 18:58:14.612 INFO [stderr] 
Nov 27 18:58:14.612 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 27 18:58:14.612 INFO [stderr]    --> src/lib.rs:457:9
Nov 27 18:58:14.612 INFO [stderr]     |
Nov 27 18:58:14.612 INFO [stderr] 457 |     use std::io::prelude::*;
Nov 27 18:58:14.612 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^
Nov 27 18:58:14.612 INFO [stderr] 
Nov 27 18:58:15.112 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 18:58:15.112 INFO [stderr]    --> src/lib.rs:133:17
Nov 27 18:58:15.112 INFO [stderr]     |
Nov 27 18:58:15.112 INFO [stderr] 133 |                 add_object(v, buf);
Nov 27 18:58:15.112 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
Nov 27 18:58:15.112 INFO [stderr]     |
Nov 27 18:58:15.112 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 27 18:58:15.112 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 18:58:15.112 INFO [stderr] 
Nov 27 18:58:15.152 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 18:58:15.152 INFO [stderr]    --> src/lib.rs:133:17
Nov 27 18:58:15.152 INFO [stderr]     |
Nov 27 18:58:15.152 INFO [stderr] 133 |                 add_object(v, buf);
Nov 27 18:58:15.152 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
Nov 27 18:58:15.152 INFO [stderr]     |
Nov 27 18:58:15.152 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 27 18:58:15.152 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 18:58:15.152 INFO [stderr] 
Nov 27 18:58:15.184 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Nov 27 18:58:15.184 INFO [stderr] su: No module specific data is present
Nov 27 18:58:16.380 INFO running `"docker" "inspect" "cde339fc308709e9b7b4d7fdd3eea1ac96da40fcd425fbe671677e8b5bc9e31e"`
Nov 27 18:58:16.754 INFO running `"docker" "rm" "-f" "cde339fc308709e9b7b4d7fdd3eea1ac96da40fcd425fbe671677e8b5bc9e31e"`
Nov 27 18:58:17.157 INFO [stdout] cde339fc308709e9b7b4d7fdd3eea1ac96da40fcd425fbe671677e8b5bc9e31e