Dec 17 11:55:29.328 INFO checking wisechengyi/rust_tar_repro against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 11:55:29.328 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/wisechengyi/rust_tar_repro:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 11:55:29.542 INFO [stdout] 156a9e2093c64f6b900c0f5f7e6801c865d046734c2a97717cf10d909a16cce0
Dec 17 11:55:29.546 INFO running `"docker" "start" "-a" "156a9e2093c64f6b900c0f5f7e6801c865d046734c2a97717cf10d909a16cce0"`
Dec 17 11:55:30.239 INFO [stderr]     Checking xattr v0.2.2
Dec 17 11:55:30.239 INFO [stderr]     Checking filetime v0.2.3
Dec 17 11:55:30.244 INFO [stderr]     Checking flate2 v1.0.4
Dec 17 11:55:30.678 INFO [stderr]     Checking tar v0.4.19
Dec 17 11:55:31.629 INFO [stderr]     Checking tar_api v0.0.1 (/opt/crater/workdir)
Dec 17 11:55:31.760 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:55:31.760 INFO [stderr]   --> src/tar_api.rs:29:3
Dec 17 11:55:31.760 INFO [stderr]    |
Dec 17 11:55:31.760 INFO [stderr] 29 |   tar.finish();
Dec 17 11:55:31.760 INFO [stderr]    |   ^^^^^^^^^^^^^
Dec 17 11:55:31.760 INFO [stderr]    |
Dec 17 11:55:31.760 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:55:31.760 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:55:31.760 INFO [stderr] 
Dec 17 11:55:31.772 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:55:31.772 INFO [stderr]   --> src/tar_api.rs:29:3
Dec 17 11:55:31.772 INFO [stderr]    |
Dec 17 11:55:31.772 INFO [stderr] 29 |   tar.finish();
Dec 17 11:55:31.772 INFO [stderr]    |   ^^^^^^^^^^^^^
Dec 17 11:55:31.772 INFO [stderr]    |
Dec 17 11:55:31.772 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:55:31.772 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:55:31.772 INFO [stderr] 
Dec 17 11:55:31.898 INFO [stderr] warning: unused import: `value_t`
Dec 17 11:55:31.898 INFO [stderr]  --> src/main.rs:5:34
Dec 17 11:55:31.898 INFO [stderr]   |
Dec 17 11:55:31.898 INFO [stderr] 5 | use clap::{App, Arg, SubCommand, value_t};
Dec 17 11:55:31.898 INFO [stderr]   |                                  ^^^^^^^
Dec 17 11:55:31.898 INFO [stderr]   |
Dec 17 11:55:31.898 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 11:55:31.898 INFO [stderr] 
Dec 17 11:55:31.898 INFO [stderr] warning: unused import: `Path`
Dec 17 11:55:31.898 INFO [stderr]  --> src/main.rs:6:17
Dec 17 11:55:31.898 INFO [stderr]   |
Dec 17 11:55:31.898 INFO [stderr] 6 | use std::path::{Path, PathBuf};
Dec 17 11:55:31.898 INFO [stderr]   |                 ^^^^
Dec 17 11:55:31.898 INFO [stderr] 
Dec 17 11:55:31.916 INFO [stderr] warning: unused import: `value_t`
Dec 17 11:55:31.916 INFO [stderr]  --> src/main.rs:5:34
Dec 17 11:55:31.916 INFO [stderr]   |
Dec 17 11:55:31.916 INFO [stderr] 5 | use clap::{App, Arg, SubCommand, value_t};
Dec 17 11:55:31.916 INFO [stderr]   |                                  ^^^^^^^
Dec 17 11:55:31.916 INFO [stderr]   |
Dec 17 11:55:31.916 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 11:55:31.916 INFO [stderr] 
Dec 17 11:55:31.916 INFO [stderr] warning: unused import: `Path`
Dec 17 11:55:31.916 INFO [stderr]  --> src/main.rs:6:17
Dec 17 11:55:31.916 INFO [stderr]   |
Dec 17 11:55:31.916 INFO [stderr] 6 | use std::path::{Path, PathBuf};
Dec 17 11:55:31.916 INFO [stderr]   |                 ^^^^
Dec 17 11:55:31.916 INFO [stderr] 
Dec 17 11:55:31.936 INFO [stderr] warning: unused variable: `sub_matches`
Dec 17 11:55:31.936 INFO [stderr]   --> src/main.rs:47:15
Dec 17 11:55:31.936 INFO [stderr]    |
Dec 17 11:55:31.936 INFO [stderr] 47 |   if let Some(sub_matches) = matches.subcommand_matches("tar") {
Dec 17 11:55:31.936 INFO [stderr]    |               ^^^^^^^^^^^ help: consider using `_sub_matches` instead
Dec 17 11:55:31.936 INFO [stderr]    |
Dec 17 11:55:31.936 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 11:55:31.936 INFO [stderr] 
Dec 17 11:55:31.952 INFO [stderr] warning: unused variable: `sub_matches`
Dec 17 11:55:31.952 INFO [stderr]   --> src/main.rs:47:15
Dec 17 11:55:31.952 INFO [stderr]    |
Dec 17 11:55:31.952 INFO [stderr] 47 |   if let Some(sub_matches) = matches.subcommand_matches("tar") {
Dec 17 11:55:31.952 INFO [stderr]    |               ^^^^^^^^^^^ help: consider using `_sub_matches` instead
Dec 17 11:55:31.952 INFO [stderr]    |
Dec 17 11:55:31.952 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 11:55:31.952 INFO [stderr] 
Dec 17 11:55:31.972 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
Dec 17 11:55:32.323 INFO running `"docker" "inspect" "156a9e2093c64f6b900c0f5f7e6801c865d046734c2a97717cf10d909a16cce0"`
Dec 17 11:55:32.422 INFO running `"docker" "rm" "-f" "156a9e2093c64f6b900c0f5f7e6801c865d046734c2a97717cf10d909a16cce0"`
Dec 17 11:55:32.575 INFO [stdout] 156a9e2093c64f6b900c0f5f7e6801c865d046734c2a97717cf10d909a16cce0