[INFO] fetching crate sfmt-sys 0.1.0...
[INFO] extracting crate sfmt-sys 0.1.0 into work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/sfmt-sys/0.1.0
[INFO] extracting crate sfmt-sys 0.1.0 into work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/sfmt-sys/0.1.0
[INFO] validating manifest of sfmt-sys-0.1.0 on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sfmt-sys-0.1.0 on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sfmt-sys-0.1.0
[INFO] finished frobbing sfmt-sys-0.1.0
[INFO] frobbed toml for sfmt-sys-0.1.0 written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/sfmt-sys/0.1.0/Cargo.toml
[INFO] started frobbing sfmt-sys-0.1.0
[INFO] finished frobbing sfmt-sys-0.1.0
[INFO] frobbed toml for sfmt-sys-0.1.0 written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/sfmt-sys/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sfmt-sys-0.1.0 against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-7/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/sfmt-sys/0.1.0:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4f99c22bf87465d30dae3c5fe193184f0045aac5c7b9393871fc80d88417023e
[INFO] running `"docker" "start" "-a" "4f99c22bf87465d30dae3c5fe193184f0045aac5c7b9393871fc80d88417023e"`
[INFO] [stderr]    Compiling sfmt-sys v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `sfmt-sys v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/sfmt-sys-caff65d9b9c27b0f/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] tar: This does not look like a tar archive
[INFO] [stderr] 
[INFO] [stderr] gzip: stdin: unexpected end of file
[INFO] [stderr] tar: Child returned status 1
[INFO] [stderr] tar: Error is not recoverable: exiting now
[INFO] [stderr] thread 'main' panicked at 'Failed to expand archive', build.rs:29:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55b6cf608833 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hfe14902d5dd41bf8
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55b6cf6048eb - std::sys_common::backtrace::_print::hc2555116e7c8c874
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55b6cf607646 - std::panicking::default_hook::{{closure}}::h9fb1ec65fd293048
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55b6cf6073d9 - std::panicking::default_hook::h7b4e2a7e1c2a63a7
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55b6cf607c9f - std::panicking::rust_panic_with_hook::h9b8bb6f9ced4f458
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55b6cf5f9d83 - std::panicking::begin_panic::h2351fc362fa7e1ff
[INFO] [stderr]                                at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/panicking.rs:408
[INFO] [stderr]    6:     0x55b6cf5f520a - build_script_build::expand::hb976c7196af56329
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:29
[INFO] [stderr]    7:     0x55b6cf5f5b96 - build_script_build::main::hecb3c5478fda98cf
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:64
[INFO] [stderr]    8:     0x55b6cf5f9c6f - std::rt::lang_start::{{closure}}::h56799d1bd3ad6626
[INFO] [stderr]                                at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/rt.rs:64
[INFO] [stderr]    9:     0x55b6cf6076f2 - std::panicking::try::do_call::h213677faaf56adb7
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   10:     0x55b6cf60e239 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:87
[INFO] [stderr]   11:     0x55b6cf6081ac - std::rt::lang_start_internal::h41a26d62d9ff596f
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   12:     0x55b6cf5f9c48 - std::rt::lang_start::ha12c20d05280e917
[INFO] [stderr]                                at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/rt.rs:64
[INFO] [stderr]   13:     0x55b6cf5f6229 - main
[INFO] [stderr]   14:     0x7efeb23d52e0 - __libc_start_main
[INFO] [stderr]   15:     0x55b6cf5e8c99 - _start
[INFO] [stderr]   16:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "4f99c22bf87465d30dae3c5fe193184f0045aac5c7b9393871fc80d88417023e"`
[INFO] running `"docker" "rm" "-f" "4f99c22bf87465d30dae3c5fe193184f0045aac5c7b9393871fc80d88417023e"`
[INFO] [stdout] 4f99c22bf87465d30dae3c5fe193184f0045aac5c7b9393871fc80d88417023e