[INFO] crate ext4 0.7.0 is already in cache
[INFO] checking ext4-0.7.0 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate ext4 0.7.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ext4 0.7.0 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] b54993244e09acba228c9bf6f0d8be581731abedca4e9bc93a51b53ab9a1e508
[INFO] running `"docker" "start" "-a" "b54993244e09acba228c9bf6f0d8be581731abedca4e9bc93a51b53ab9a1e508"`
[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-b2917210a8383d80/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:     0x556fc7882bb4 - backtrace::backtrace::libunwind::trace::h9e598fcb10d5c4f5
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x556fc7882bb4 - backtrace::backtrace::trace_unsynchronized::hbfbd58fbb4a2603e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x556fc7882bb4 - std::sys_common::backtrace::_print_fmt::hacb596a8013761df
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x556fc7882bb4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha1ba73c9085723eb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x556fc78a5acc - core::fmt::write::hb4ac1e8a8c800611
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x556fc78811d3 - std::io::Write::write_fmt::ha413e6029f4d499f
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x556fc7885155 - std::sys_common::backtrace::_print::h5afa8b3832cd03b8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x556fc7885155 - std::sys_common::backtrace::print::h49229e3486b70f83
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x556fc7885155 - std::panicking::default_hook::{{closure}}::hcfefd5f4943f3aa9
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x556fc7884e92 - std::panicking::default_hook::h4c2b6d8d034c53de
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x556fc7885762 - std::panicking::rust_panic_with_hook::hf8cee70c0118d2cc
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x556fc787aedd - std::panicking::begin_panic::h2a15cfc3b4b34c89
[INFO] [stderr]                                at /rustc/209b2be09fcaff937480d1fbbe8b31646e361c7a/src/libstd/panicking.rs:438
[INFO] [stderr]   12:     0x556fc7875607 - build_script_build::extract_test_images::h45bc224dede3b27d
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:12
[INFO] [stderr]   13:     0x556fc787569e - build_script_build::main::hb5e5e52c97850f3b
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:22
[INFO] [stderr]   14:     0x556fc787575b - std::rt::lang_start::{{closure}}::h5e73af2b78b2b8a4
[INFO] [stderr]                                at /rustc/209b2be09fcaff937480d1fbbe8b31646e361c7a/src/libstd/rt.rs:67
[INFO] [stderr]   15:     0x556fc7885ba8 - std::rt::lang_start_internal::{{closure}}::h4c4631d379953dd0
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   16:     0x556fc7885ba8 - std::panicking::try::do_call::hc26b3db2421dedbb
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   17:     0x556fc7885ba8 - std::panicking::try::h4da6835c8705b8a7
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   18:     0x556fc7885ba8 - std::panic::catch_unwind::h02aff520273fa6b1
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x556fc7885ba8 - std::rt::lang_start_internal::he0572ca212cb5ef4
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   20:     0x556fc7875737 - std::rt::lang_start::h38cc3282d6283939
[INFO] [stderr]                                at /rustc/209b2be09fcaff937480d1fbbe8b31646e361c7a/src/libstd/rt.rs:67
[INFO] [stderr]   21:     0x556fc78756ea - main
[INFO] [stderr]   22:     0x7f241ee23b97 - __libc_start_main
[INFO] [stderr]   23:     0x556fc7872f2a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "b54993244e09acba228c9bf6f0d8be581731abedca4e9bc93a51b53ab9a1e508"`
[INFO] running `"docker" "rm" "-f" "b54993244e09acba228c9bf6f0d8be581731abedca4e9bc93a51b53ab9a1e508"`
[INFO] [stdout] b54993244e09acba228c9bf6f0d8be581731abedca4e9bc93a51b53ab9a1e508
