[INFO] crate codenano 0.4.0 is already in cache
[INFO] testing codenano-0.4.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate codenano 0.4.0 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate codenano 0.4.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate codenano 0.4.0
[INFO] finished tweaking crates.io crate codenano 0.4.0
[INFO] tweaked toml for crates.io crate codenano 0.4.0 written to work/builds/worker-6/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] c9ca70e80a351ffe766ebe2e6aa06a163c17c6dd1989fbf4b2d713747b7b8535
[INFO] running `"docker" "start" "-a" "c9ca70e80a351ffe766ebe2e6aa06a163c17c6dd1989fbf4b2d713747b7b8535"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling zip v0.4.2
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling simple_excel_writer v0.1.5
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling cadnano-format v0.1.0
[INFO] [stderr]    Compiling codenano v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.96s
[INFO] running `"docker" "inspect" "c9ca70e80a351ffe766ebe2e6aa06a163c17c6dd1989fbf4b2d713747b7b8535"`
[INFO] running `"docker" "rm" "-f" "c9ca70e80a351ffe766ebe2e6aa06a163c17c6dd1989fbf4b2d713747b7b8535"`
[INFO] [stdout] c9ca70e80a351ffe766ebe2e6aa06a163c17c6dd1989fbf4b2d713747b7b8535
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] e84ad29d075579ffe215bd34dda534b7c62a2116f50874ae8618df3c49c2656f
[INFO] running `"docker" "start" "-a" "e84ad29d075579ffe215bd34dda534b7c62a2116f50874ae8618df3c49c2656f"`
[INFO] [stderr]    Compiling codenano v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `"docker" "inspect" "e84ad29d075579ffe215bd34dda534b7c62a2116f50874ae8618df3c49c2656f"`
[INFO] running `"docker" "rm" "-f" "e84ad29d075579ffe215bd34dda534b7c62a2116f50874ae8618df3c49c2656f"`
[INFO] [stdout] e84ad29d075579ffe215bd34dda534b7c62a2116f50874ae8618df3c49c2656f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 26fbbeda8ff6cb2a0896841a71ab35696ab0a44ddc3726f12c0faaf6f3ff4bc2
[INFO] running `"docker" "start" "-a" "26fbbeda8ff6cb2a0896841a71ab35696ab0a44ddc3726f12c0faaf6f3ff4bc2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/codenano-50b735a26c2f1a4b
[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 codenano
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 7) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 7) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/internal.rs:44
[INFO] [stdout]    1: failure::backtrace::Backtrace::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/mod.rs:111
[INFO] [stdout]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from
[INFO] [stdout]    3: <failure::error::Error as core::convert::From<F>>::from
[INFO] [stdout]    4: codenano::Design<Label>::write_to
[INFO] [stdout]    5: rust_out::main
[INFO] [stdout]    6: std::rt::lang_start::{{closure}}
[INFO] [stdout]    7: std::rt::lang_start_internal::{{closure}}
[INFO] [stdout]              at src/libstd/rt.rs:49
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at src/libstd/panicking.rs:292
[INFO] [stdout]    8: __rust_maybe_catch_panic
[INFO] [stdout]              at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]    9: std::panicking::try
[INFO] [stdout]              at src/libstd/panicking.rs:271
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at src/libstd/panic.rs:394
[INFO] [stdout]       std::rt::lang_start_internal
[INFO] [stdout]              at src/libstd/rt.rs:48
[INFO] [stdout]   10: std::rt::lang_start
[INFO] [stdout]   11: main
[INFO] [stdout]   12: __libc_start_main
[INFO] [stdout]   13: _start
[INFO] [stdout] ', src/libcore/result.rs:1165:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x561bb03a0154 - backtrace::backtrace::libunwind::trace::hf625d18232cbbbd4
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x561bb03a0154 - backtrace::backtrace::trace_unsynchronized::h41d74150fc6ff542
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x561bb03a0154 - std::sys_common::backtrace::_print_fmt::h85d37830c667a1f9
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stdout]    3:     0x561bb03a0154 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2b7ac01d5feaf9b2
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stdout]    4:     0x561bb03b933c - core::fmt::write::h7fd0d904495c035f
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stdout]    5:     0x561bb039e667 - std::io::Write::write_fmt::h663e4bf63637c947
[INFO] [stdout]                                at src/libstd/io/mod.rs:1412
[INFO] [stdout]    6:     0x561bb03a2505 - std::sys_common::backtrace::_print::h4c743f7c274a5a74
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stdout]    7:     0x561bb03a2505 - std::sys_common::backtrace::print::ha5c4f4bf03800d4d
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x561bb03a2505 - std::panicking::default_hook::{{closure}}::h8b842185774c09e6
[INFO] [stdout]                                at src/libstd/panicking.rs:196
[INFO] [stdout]    9:     0x561bb03a21f6 - std::panicking::default_hook::hd8ec13ee1bc2a65a
[INFO] [stdout]                                at src/libstd/panicking.rs:210
[INFO] [stdout]   10:     0x561bb03a2ba5 - std::panicking::rust_panic_with_hook::hf3b27166e5f403e7
[INFO] [stdout]                                at src/libstd/panicking.rs:473
[INFO] [stdout]   11:     0x561bb03a2742 - std::panicking::continue_panic_fmt::hd961751be84a6f83
[INFO] [stdout]                                at src/libstd/panicking.rs:380
[INFO] [stdout]   12:     0x561bb03a2636 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:307
[INFO] [stdout]   13:     0x561bb03b6cfa - core::panicking::panic_fmt::h467e0364f9237670
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   14:     0x561bb03b6df7 - core::result::unwrap_failed::h38f3a56f1dadf080
[INFO] [stdout]                                at src/libcore/result.rs:1165
[INFO] [stdout]   15:     0x561bb03324ad - core::result::Result<T,E>::unwrap::h900cff718be78c76
[INFO] [stdout]   16:     0x561bb034868b - rust_out::main::h1cf9155cb6204ee7
[INFO] [stdout]   17:     0x561bb032ebb3 - std::rt::lang_start::{{closure}}::h837c50a411d03a57
[INFO] [stdout]   18:     0x561bb03a25d3 - std::rt::lang_start_internal::{{closure}}::hf85bf15597d76295
[INFO] [stdout]                                at src/libstd/rt.rs:49
[INFO] [stdout]   19:     0x561bb03a25d3 - std::panicking::try::do_call::hd308ec0604b9bc21
[INFO] [stdout]                                at src/libstd/panicking.rs:292
[INFO] [stdout]   20:     0x561bb03a455a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   21:     0x561bb03a309d - std::panicking::try::hafc45125a5bd2b22
[INFO] [stdout]                                at src/libstd/panicking.rs:271
[INFO] [stdout]   22:     0x561bb03a309d - std::panic::catch_unwind::h8494678ec44c4b51
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   23:     0x561bb03a309d - std::rt::lang_start_internal::h7404667a595739f8
[INFO] [stdout]                                at src/libstd/rt.rs:48
[INFO] [stdout]   24:     0x561bb032eb98 - std::rt::lang_start::heafa1638e1b7f8fa
[INFO] [stdout]   25:     0x561bb03486db - main
[INFO] [stdout]   26:     0x7f4371a22b97 - __libc_start_main
[INFO] [stdout]   27:     0x561bb032c0fa - _start
[INFO] [stdout]   28:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 7)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "26fbbeda8ff6cb2a0896841a71ab35696ab0a44ddc3726f12c0faaf6f3ff4bc2"`
[INFO] running `"docker" "rm" "-f" "26fbbeda8ff6cb2a0896841a71ab35696ab0a44ddc3726f12c0faaf6f3ff4bc2"`
[INFO] [stdout] 26fbbeda8ff6cb2a0896841a71ab35696ab0a44ddc3726f12c0faaf6f3ff4bc2