Dec 04 07:02:40.004 INFO checking wisechengyi/rust_tar_repro against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 07:02:40.004 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 07:02:40.523 INFO [stdout] 97b20e25f8e42ec8157f222901ecabe1ecb8b03b880d236e28c5efc601382065
Dec 04 07:02:40.531 INFO running `"docker" "start" "-a" "97b20e25f8e42ec8157f222901ecabe1ecb8b03b880d236e28c5efc601382065"`
Dec 04 07:02:41.357 INFO [stderr] usermod: no changes
Dec 04 07:02:41.431 INFO [stderr]     Checking xattr v0.2.2
Dec 04 07:02:41.431 INFO [stderr]     Checking filetime v0.2.3
Dec 04 07:02:41.461 INFO [stderr]     Checking flate2 v1.0.4
Dec 04 07:02:42.071 INFO [stderr]     Checking tar v0.4.19
Dec 04 07:02:43.217 INFO [stderr]     Checking tar_api v0.0.1 (/source)
Dec 04 07:02:43.403 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:02:43.403 INFO [stderr]   --> src/tar_api.rs:29:3
Dec 04 07:02:43.403 INFO [stderr]    |
Dec 04 07:02:43.403 INFO [stderr] 29 |   tar.finish();
Dec 04 07:02:43.403 INFO [stderr]    |   ^^^^^^^^^^^^^
Dec 04 07:02:43.403 INFO [stderr]    |
Dec 04 07:02:43.403 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 07:02:43.403 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:02:43.403 INFO [stderr] 
Dec 04 07:02:43.519 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:02:43.519 INFO [stderr]   --> src/tar_api.rs:29:3
Dec 04 07:02:43.519 INFO [stderr]    |
Dec 04 07:02:43.519 INFO [stderr] 29 |   tar.finish();
Dec 04 07:02:43.519 INFO [stderr]    |   ^^^^^^^^^^^^^
Dec 04 07:02:43.541 INFO [stderr]    |
Dec 04 07:02:43.541 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 07:02:43.541 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:02:43.541 INFO [stderr] 
Dec 04 07:02:43.793 INFO [stderr] warning: unused import: `value_t`
Dec 04 07:02:43.793 INFO [stderr]  --> src/main.rs:5:34
Dec 04 07:02:43.793 INFO [stderr]   |
Dec 04 07:02:43.793 INFO [stderr] 5 | use clap::{App, Arg, SubCommand, value_t};
Dec 04 07:02:43.793 INFO [stderr]   |                                  ^^^^^^^
Dec 04 07:02:43.793 INFO [stderr]   |
Dec 04 07:02:43.793 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 07:02:43.793 INFO [stderr] 
Dec 04 07:02:43.793 INFO [stderr] warning: unused import: `Path`
Dec 04 07:02:43.793 INFO [stderr]  --> src/main.rs:6:17
Dec 04 07:02:43.793 INFO [stderr]   |
Dec 04 07:02:43.793 INFO [stderr] 6 | use std::path::{Path, PathBuf};
Dec 04 07:02:43.793 INFO [stderr]   |                 ^^^^
Dec 04 07:02:43.793 INFO [stderr] 
Dec 04 07:02:43.830 INFO [stderr] warning: unused variable: `sub_matches`
Dec 04 07:02:43.830 INFO [stderr]   --> src/main.rs:47:15
Dec 04 07:02:43.830 INFO [stderr]    |
Dec 04 07:02:43.830 INFO [stderr] 47 |   if let Some(sub_matches) = matches.subcommand_matches("tar") {
Dec 04 07:02:43.830 INFO [stderr]    |               ^^^^^^^^^^^ help: consider using `_sub_matches` instead
Dec 04 07:02:43.830 INFO [stderr]    |
Dec 04 07:02:43.830 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:02:43.830 INFO [stderr] 
Dec 04 07:02:43.847 INFO [stderr] warning: unused import: `value_t`
Dec 04 07:02:43.847 INFO [stderr]  --> src/main.rs:5:34
Dec 04 07:02:43.847 INFO [stderr]   |
Dec 04 07:02:43.847 INFO [stderr] 5 | use clap::{App, Arg, SubCommand, value_t};
Dec 04 07:02:43.847 INFO [stderr]   |                                  ^^^^^^^
Dec 04 07:02:43.847 INFO [stderr]   |
Dec 04 07:02:43.847 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 07:02:43.847 INFO [stderr] 
Dec 04 07:02:43.847 INFO [stderr] warning: unused import: `Path`
Dec 04 07:02:43.847 INFO [stderr]  --> src/main.rs:6:17
Dec 04 07:02:43.847 INFO [stderr]   |
Dec 04 07:02:43.847 INFO [stderr] 6 | use std::path::{Path, PathBuf};
Dec 04 07:02:43.847 INFO [stderr]   |                 ^^^^
Dec 04 07:02:43.847 INFO [stderr] 
Dec 04 07:02:43.887 INFO [stderr] warning: unused variable: `sub_matches`
Dec 04 07:02:43.887 INFO [stderr]   --> src/main.rs:47:15
Dec 04 07:02:43.887 INFO [stderr]    |
Dec 04 07:02:43.887 INFO [stderr] 47 |   if let Some(sub_matches) = matches.subcommand_matches("tar") {
Dec 04 07:02:43.887 INFO [stderr]    |               ^^^^^^^^^^^ help: consider using `_sub_matches` instead
Dec 04 07:02:43.887 INFO [stderr]    |
Dec 04 07:02:43.887 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:02:43.887 INFO [stderr] 
Dec 04 07:02:43.932 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
Dec 04 07:02:43.932 INFO [stderr] su: No module specific data is present
Dec 04 07:02:44.361 INFO running `"docker" "inspect" "97b20e25f8e42ec8157f222901ecabe1ecb8b03b880d236e28c5efc601382065"`
Dec 04 07:02:44.444 INFO running `"docker" "rm" "-f" "97b20e25f8e42ec8157f222901ecabe1ecb8b03b880d236e28c5efc601382065"`
Dec 04 07:02:44.590 INFO [stdout] 97b20e25f8e42ec8157f222901ecabe1ecb8b03b880d236e28c5efc601382065