[INFO] crate initials 0.1.2 is already in cache [INFO] testing initials-0.1.2 against 1.38.0 for beta-1.39-1 [INFO] extracting crate initials 0.1.2 into work/builds/worker-2/source [INFO] validating manifest of crates.io crate initials 0.1.2 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 initials 0.1.2 [INFO] finished tweaking crates.io crate initials 0.1.2 [INFO] tweaked toml for crates.io crate initials 0.1.2 written to work/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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] 258071e860f112e6306f0f439f1b062091751b13300d743b38ecccffd50077ae [INFO] running `"docker" "start" "-a" "258071e860f112e6306f0f439f1b062091751b13300d743b38ecccffd50077ae"` [INFO] [stderr] Compiling rusttype v0.6.5 [INFO] [stderr] Compiling image v0.19.0 [INFO] [stderr] Compiling initials v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.39s [INFO] running `"docker" "inspect" "258071e860f112e6306f0f439f1b062091751b13300d743b38ecccffd50077ae"` [INFO] running `"docker" "rm" "-f" "258071e860f112e6306f0f439f1b062091751b13300d743b38ecccffd50077ae"` [INFO] [stdout] 258071e860f112e6306f0f439f1b062091751b13300d743b38ecccffd50077ae [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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] 91cb2b1ddd3597fd77ea97649490080a06fffaf707a704246c93c0bb1b586c70 [INFO] running `"docker" "start" "-a" "91cb2b1ddd3597fd77ea97649490080a06fffaf707a704246c93c0bb1b586c70"` [INFO] [stderr] Compiling initials v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.83s [INFO] running `"docker" "inspect" "91cb2b1ddd3597fd77ea97649490080a06fffaf707a704246c93c0bb1b586c70"` [INFO] running `"docker" "rm" "-f" "91cb2b1ddd3597fd77ea97649490080a06fffaf707a704246c93c0bb1b586c70"` [INFO] [stdout] 91cb2b1ddd3597fd77ea97649490080a06fffaf707a704246c93c0bb1b586c70 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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] d38ec96ff9f1f6dc3d0bbc1ee07cb03fedd732f55973ac8c9db416cdcb36986e [INFO] running `"docker" "start" "-a" "d38ec96ff9f1f6dc3d0bbc1ee07cb03fedd732f55973ac8c9db416cdcb36986e"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/initials-0864245a48f5d33a [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test hex::tests::test_invalid_hex_with_missing_prefix ... ok [INFO] [stdout] test contrast::tests::test_contrast_ratio ... ok [INFO] [stdout] test hex::tests::test_invalid_hex_with_parse_error ... ok [INFO] [stdout] test hex::tests::test_invalid_hex_with_wrong_size ... ok [INFO] [stdout] test hex::tests::test_valid_hex ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/bin-1a297056c7a47f27 [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 initials [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test src/lib.rs - (line 6) ... ok [INFO] [stdout] test src/lib.rs - (line 12) ... ok [INFO] [stdout] test src/lib.rs - (line 62) ... ok [INFO] [stdout] test src/lib.rs - (line 22) ... FAILED [INFO] [stdout] test src/lib.rs - (line 86) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 22) 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" }', src/libcore/result.rs:1084:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55a06e27a2db - 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: 0x55a06e27a2db - 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: 0x55a06e27a2db - std::sys_common::backtrace::_print::hd3382a1f33c473da [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55a06e27a2db - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55a06e27a2db - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x55a06e279fb6 - std::panicking::default_hook::h95a8f00337383d83 [INFO] [stdout] at src/libstd/panicking.rs:214 [INFO] [stdout] 6: 0x55a06e27a9ed - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x55a06e27a572 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x55a06e27a456 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:311 [INFO] [stdout] 9: 0x55a06e28f4bd - core::panicking::panic_fmt::h7e9f94035af782b3 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x55a06e28f5b7 - core::result::unwrap_failed::hf7591c1dd9412006 [INFO] [stdout] at src/libcore/result.rs:1084 [INFO] [stdout] 11: 0x55a06e16bd7d - core::result::Result::unwrap::hd04d7ed3dbd60a67 [INFO] [stdout] 12: 0x55a06e16c22f - rust_out::main::h1cf9155cb6204ee7 [INFO] [stdout] 13: 0x55a06e16c163 - std::rt::lang_start::{{closure}}::h47cd0236d084ef94 [INFO] [stdout] 14: 0x55a06e27a3f3 - std::rt::lang_start_internal::{{closure}}::h4e93c1949c7a1955 [INFO] [stdout] at src/libstd/rt.rs:49 [INFO] [stdout] 15: 0x55a06e27a3f3 - std::panicking::try::do_call::h9440ccd4dc467eaa [INFO] [stdout] at src/libstd/panicking.rs:296 [INFO] [stdout] 16: 0x55a06e27c4fa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 17: 0x55a06e27aefd - std::panicking::try::hc046e7ee42ee744f [INFO] [stdout] at src/libstd/panicking.rs:275 [INFO] [stdout] 18: 0x55a06e27aefd - std::panic::catch_unwind::h27dfc457c200aee0 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 19: 0x55a06e27aefd - std::rt::lang_start_internal::hea1b49a567afe309 [INFO] [stdout] at src/libstd/rt.rs:48 [INFO] [stdout] 20: 0x55a06e16c148 - std::rt::lang_start::h74b7ed2f3cfd5b0d [INFO] [stdout] 21: 0x55a06e16c27b - main [INFO] [stdout] 22: 0x7f5f513d4b97 - __libc_start_main [INFO] [stdout] 23: 0x55a06e16ba8a - _start [INFO] [stdout] 24: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 22) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 4 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" "d38ec96ff9f1f6dc3d0bbc1ee07cb03fedd732f55973ac8c9db416cdcb36986e"` [INFO] running `"docker" "rm" "-f" "d38ec96ff9f1f6dc3d0bbc1ee07cb03fedd732f55973ac8c9db416cdcb36986e"` [INFO] [stdout] d38ec96ff9f1f6dc3d0bbc1ee07cb03fedd732f55973ac8c9db416cdcb36986e