[INFO] crate codenano 0.4.0 is already in cache
[INFO] testing codenano-0.4.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate codenano 0.4.0 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate codenano 0.4.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "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-1/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 01a1fc7ee54d41c1b2a96c53ef56e214d3eab95c71759ad787714dff9c6973cc
[INFO] running `"docker" "start" "-a" "01a1fc7ee54d41c1b2a96c53ef56e214d3eab95c71759ad787714dff9c6973cc"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling zip v0.4.2
[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 13.68s
[INFO] running `"docker" "inspect" "01a1fc7ee54d41c1b2a96c53ef56e214d3eab95c71759ad787714dff9c6973cc"`
[INFO] running `"docker" "rm" "-f" "01a1fc7ee54d41c1b2a96c53ef56e214d3eab95c71759ad787714dff9c6973cc"`
[INFO] [stdout] 01a1fc7ee54d41c1b2a96c53ef56e214d3eab95c71759ad787714dff9c6973cc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9bcf3802ecf0e776a9df9dd5a54572bf52926de10907358a9a72cc15cc7863b3
[INFO] running `"docker" "start" "-a" "9bcf3802ecf0e776a9df9dd5a54572bf52926de10907358a9a72cc15cc7863b3"`
[INFO] [stderr]    Compiling codenano v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `"docker" "inspect" "9bcf3802ecf0e776a9df9dd5a54572bf52926de10907358a9a72cc15cc7863b3"`
[INFO] running `"docker" "rm" "-f" "9bcf3802ecf0e776a9df9dd5a54572bf52926de10907358a9a72cc15cc7863b3"`
[INFO] [stdout] 9bcf3802ecf0e776a9df9dd5a54572bf52926de10907358a9a72cc15cc7863b3
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 6b398266f6063f58c11212acbda0d18dc515e5c56328b68c5de81e129f9318ad
[INFO] running `"docker" "start" "-a" "6b398266f6063f58c11212acbda0d18dc515e5c56328b68c5de81e129f9318ad"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/codenano-15f4c26d11c4b154
[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:296
[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:275
[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:1084:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55d1746b001b - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55d1746b001b - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55d1746b001b - std::sys_common::backtrace::_print::hd3382a1f33c473da
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55d1746b001b - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55d1746b001b - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55d1746afcf6 - std::panicking::default_hook::h95a8f00337383d83
[INFO] [stdout]                                at src/libstd/panicking.rs:214
[INFO] [stdout]    6:     0x55d1746b072d - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55d1746b02b2 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55d1746b0196 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x55d1746c4bbd - core::panicking::panic_fmt::h7e9f94035af782b3
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x55d1746c4cb7 - core::result::unwrap_failed::hf7591c1dd9412006
[INFO] [stdout]                                at src/libcore/result.rs:1084
[INFO] [stdout]   11:     0x55d17464cf1d - core::result::Result<T,E>::unwrap::h1d0ce0a5c108b02b
[INFO] [stdout]   12:     0x55d174655ceb - rust_out::main::h1cf9155cb6204ee7
[INFO] [stdout]   13:     0x55d17464e2b3 - std::rt::lang_start::{{closure}}::h47cd0236d084ef94
[INFO] [stdout]   14:     0x55d1746b0133 - std::rt::lang_start_internal::{{closure}}::h4e93c1949c7a1955
[INFO] [stdout]                                at src/libstd/rt.rs:49
[INFO] [stdout]   15:     0x55d1746b0133 - std::panicking::try::do_call::h9440ccd4dc467eaa
[INFO] [stdout]                                at src/libstd/panicking.rs:296
[INFO] [stdout]   16:     0x55d1746b210a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   17:     0x55d1746b0c3d - std::panicking::try::hc046e7ee42ee744f
[INFO] [stdout]                                at src/libstd/panicking.rs:275
[INFO] [stdout]   18:     0x55d1746b0c3d - std::panic::catch_unwind::h27dfc457c200aee0
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   19:     0x55d1746b0c3d - std::rt::lang_start_internal::hea1b49a567afe309
[INFO] [stdout]                                at src/libstd/rt.rs:48
[INFO] [stdout]   20:     0x55d17464e298 - std::rt::lang_start::h74b7ed2f3cfd5b0d
[INFO] [stdout]   21:     0x55d174655d3b - main
[INFO] [stdout]   22:     0x7f9900c2ab97 - __libc_start_main
[INFO] [stdout]   23:     0x55d174639f1a - _start
[INFO] [stdout]   24:                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" "6b398266f6063f58c11212acbda0d18dc515e5c56328b68c5de81e129f9318ad"`
[INFO] running `"docker" "rm" "-f" "6b398266f6063f58c11212acbda0d18dc515e5c56328b68c5de81e129f9318ad"`
[INFO] [stdout] 6b398266f6063f58c11212acbda0d18dc515e5c56328b68c5de81e129f9318ad