[INFO] crate ext4 0.7.0 is already in cache
[INFO] checking ext4-0.7.0 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate ext4 0.7.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate ext4 0.7.0 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ext4 0.7.0
[INFO] finished tweaking crates.io crate ext4 0.7.0
[INFO] tweaked toml for crates.io crate ext4 0.7.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b680c985987a1b1f1396c73375673dd9b0870189b8b6ba6409a4d2c0a63d50e6
[INFO] running `"docker" "start" "-a" "b680c985987a1b1f1396c73375673dd9b0870189b8b6ba6409a4d2c0a63d50e6"`
[INFO] [stderr]    Compiling ext4 v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bootsector v0.1.3
[INFO] [stderr] error: failed to run custom build command for `ext4 v0.7.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/ext4-991e6d58ed1fc499/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] tar: all-types.img: Cannot open: Read-only file system
[INFO] [stderr] tar: all-types-32.img: Cannot open: Read-only file system
[INFO] [stderr] tar: all-types-tiny.img: Cannot open: Read-only file system
[INFO] [stderr] tar: all-types-big.img: Cannot open: Read-only file system
[INFO] [stderr] tar: all-types-big-32.img: Cannot open: Read-only file system
[INFO] [stderr] tar: Exiting with failure status due to previous errors
[INFO] [stderr] thread 'main' panicked at 'assertion failed: process::Command::new("tar").args(&["-C", DEST, "-xf",
[INFO] [stderr]                                     "scripts/generate-images/images.tgz"]).spawn()?.wait()?.success()', build.rs:12:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5579f26a5bb4 - backtrace::backtrace::libunwind::trace::hda902e3a4eb9d449
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x5579f26a5bb4 - backtrace::backtrace::trace_unsynchronized::h06df0062bb63b7e2
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5579f26a5bb4 - std::sys_common::backtrace::_print_fmt::ha5249daf78f399e8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5579f26a5bb4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h68243ef2eafa8843
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5579f26c8acc - core::fmt::write::h8b50d07b82ae3922
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x5579f26a41d3 - std::io::Write::write_fmt::h9a5b9a212b705549
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x5579f26a8155 - std::sys_common::backtrace::_print::hcd11fe8eb9e7335d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5579f26a8155 - std::sys_common::backtrace::print::h475286256f91474c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5579f26a8155 - std::panicking::default_hook::{{closure}}::h2a45e9d6ef27161b
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5579f26a7e92 - std::panicking::default_hook::h76adec688b27abdd
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x5579f26a8762 - std::panicking::rust_panic_with_hook::h121f4f2c52efbcbf
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x5579f269dedd - std::panicking::begin_panic::hdca06903cdea2b58
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/panicking.rs:438
[INFO] [stderr]   12:     0x5579f2698607 - build_script_build::extract_test_images::hb960dae37b2afe24
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:12
[INFO] [stderr]   13:     0x5579f269869e - build_script_build::main::ha170993de3f9dd41
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:22
[INFO] [stderr]   14:     0x5579f269875b - std::rt::lang_start::{{closure}}::hde9a39980e5ae291
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   15:     0x5579f26a8ba8 - std::rt::lang_start_internal::{{closure}}::h15b56bd7f81214ad
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   16:     0x5579f26a8ba8 - std::panicking::try::do_call::hbe8467da291bc822
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   17:     0x5579f26a8ba8 - std::panicking::try::hde3b5cbc6989304d
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   18:     0x5579f26a8ba8 - std::panic::catch_unwind::h56844acb323fdd6c
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x5579f26a8ba8 - std::rt::lang_start_internal::hae379591a9420b87
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   20:     0x5579f2698737 - std::rt::lang_start::h1323a302333dd5d9
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   21:     0x5579f26986ea - main
[INFO] [stderr]   22:     0x7f78227e1b97 - __libc_start_main
[INFO] [stderr]   23:     0x5579f2695f2a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "b680c985987a1b1f1396c73375673dd9b0870189b8b6ba6409a4d2c0a63d50e6"`
[INFO] running `"docker" "rm" "-f" "b680c985987a1b1f1396c73375673dd9b0870189b8b6ba6409a4d2c0a63d50e6"`
[INFO] [stdout] b680c985987a1b1f1396c73375673dd9b0870189b8b6ba6409a4d2c0a63d50e6
