[INFO] updating cached repository wisechengyi/rust_tar_repro
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wisechengyi/rust_tar_repro
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wisechengyi/rust_tar_repro" "work/ex/beta-1.37-6/sources/1.36.0/gh/wisechengyi/rust_tar_repro"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/wisechengyi/rust_tar_repro'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wisechengyi/rust_tar_repro" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wisechengyi/rust_tar_repro"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wisechengyi/rust_tar_repro'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b724825429f3ebb16d1e879dab39885a92173148
[INFO] sha for GitHub repo wisechengyi/rust_tar_repro: b724825429f3ebb16d1e879dab39885a92173148
[INFO] validating manifest of wisechengyi/rust_tar_repro on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wisechengyi/rust_tar_repro on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wisechengyi/rust_tar_repro
[INFO] finished frobbing wisechengyi/rust_tar_repro
[INFO] frobbed toml for wisechengyi/rust_tar_repro written to work/ex/beta-1.37-6/sources/1.36.0/gh/wisechengyi/rust_tar_repro/Cargo.toml
[INFO] started frobbing wisechengyi/rust_tar_repro
[INFO] finished frobbing wisechengyi/rust_tar_repro
[INFO] frobbed toml for wisechengyi/rust_tar_repro written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wisechengyi/rust_tar_repro/Cargo.toml
[INFO] crate wisechengyi/rust_tar_repro already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing wisechengyi/rust_tar_repro against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 408b219968ea7fb54b59e753d83f305e5d1ba69a6339fe2ce1e92380a00282b6
[INFO] running `"docker" "start" "-a" "408b219968ea7fb54b59e753d83f305e5d1ba69a6339fe2ce1e92380a00282b6"`
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.3
[INFO] [stderr]    Compiling flate2 v1.0.4
[INFO] [stderr]    Compiling tar v0.4.19
[INFO] [stderr]    Compiling tar_api v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tar_api.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |   tar.finish();
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `value_t`
[INFO] [stderr]  --> src/main.rs:5:34
[INFO] [stderr]   |
[INFO] [stderr] 5 | use clap::{App, Arg, SubCommand, value_t};
[INFO] [stderr]   |                                  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/main.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub_matches`
[INFO] [stderr]   --> src/main.rs:47:15
[INFO] [stderr]    |
[INFO] [stderr] 47 |   if let Some(sub_matches) = matches.subcommand_matches("tar") {
[INFO] [stderr]    |               ^^^^^^^^^^^ help: consider prefixing with an underscore: `_sub_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.11s
[INFO] running `"docker" "inspect" "408b219968ea7fb54b59e753d83f305e5d1ba69a6339fe2ce1e92380a00282b6"`
[INFO] running `"docker" "rm" "-f" "408b219968ea7fb54b59e753d83f305e5d1ba69a6339fe2ce1e92380a00282b6"`
[INFO] [stdout] 408b219968ea7fb54b59e753d83f305e5d1ba69a6339fe2ce1e92380a00282b6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 309a9527cff22270ae9698f60bfd37f537ca937a6a591fc97500ed0f6623f98e
[INFO] running `"docker" "start" "-a" "309a9527cff22270ae9698f60bfd37f537ca937a6a591fc97500ed0f6623f98e"`
[INFO] [stderr]    Compiling tar_api v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tar_api.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |   tar.finish();
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `value_t`
[INFO] [stderr]  --> src/main.rs:5:34
[INFO] [stderr]   |
[INFO] [stderr] 5 | use clap::{App, Arg, SubCommand, value_t};
[INFO] [stderr]   |                                  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/main.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub_matches`
[INFO] [stderr]   --> src/main.rs:47:15
[INFO] [stderr]    |
[INFO] [stderr] 47 |   if let Some(sub_matches) = matches.subcommand_matches("tar") {
[INFO] [stderr]    |               ^^^^^^^^^^^ help: consider prefixing with an underscore: `_sub_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "309a9527cff22270ae9698f60bfd37f537ca937a6a591fc97500ed0f6623f98e"`
[INFO] running `"docker" "rm" "-f" "309a9527cff22270ae9698f60bfd37f537ca937a6a591fc97500ed0f6623f98e"`
[INFO] [stdout] 309a9527cff22270ae9698f60bfd37f537ca937a6a591fc97500ed0f6623f98e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 06bc329e090aa35f85c0bdb32a6b0dc0da3b89ada6e02be3f79097e9d1422667
[INFO] running `"docker" "start" "-a" "06bc329e090aa35f85c0bdb32a6b0dc0da3b89ada6e02be3f79097e9d1422667"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tar_api-cfc5b6f5709c5b43
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_tar-4e56aee6b9d23027
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tar_api
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "06bc329e090aa35f85c0bdb32a6b0dc0da3b89ada6e02be3f79097e9d1422667"`
[INFO] running `"docker" "rm" "-f" "06bc329e090aa35f85c0bdb32a6b0dc0da3b89ada6e02be3f79097e9d1422667"`
[INFO] [stdout] 06bc329e090aa35f85c0bdb32a6b0dc0da3b89ada6e02be3f79097e9d1422667