[INFO] fetching crate fonterator 0.3.0... [INFO] extracting crate fonterator 0.3.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fonterator/0.3.0 [INFO] extracting crate fonterator 0.3.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fonterator/0.3.0 [INFO] validating manifest of fonterator-0.3.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of fonterator-0.3.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing fonterator-0.3.0 [INFO] finished frobbing fonterator-0.3.0 [INFO] frobbed toml for fonterator-0.3.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fonterator/0.3.0/Cargo.toml [INFO] started frobbing fonterator-0.3.0 [INFO] finished frobbing fonterator-0.3.0 [INFO] frobbed toml for fonterator-0.3.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fonterator/0.3.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded footile v0.2.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing fonterator-0.3.0 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fonterator/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"` [INFO] [stdout] ea3a4dab90399be84cc606a1d0128d584fbf6dd4307844d110155cb22139d534 [INFO] running `"docker" "start" "-a" "ea3a4dab90399be84cc606a1d0128d584fbf6dd4307844d110155cb22139d534"` [INFO] [stderr] Compiling png v0.10.0 [INFO] [stderr] Compiling footile v0.2.0 [INFO] [stderr] Compiling fonterator v0.3.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.77s [INFO] running `"docker" "inspect" "ea3a4dab90399be84cc606a1d0128d584fbf6dd4307844d110155cb22139d534"` [INFO] running `"docker" "rm" "-f" "ea3a4dab90399be84cc606a1d0128d584fbf6dd4307844d110155cb22139d534"` [INFO] [stdout] ea3a4dab90399be84cc606a1d0128d584fbf6dd4307844d110155cb22139d534 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fonterator/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 7a615d5d59cb2c42b9906684c923808fe11ab0aae31138522dc6f00a059a19c0 [INFO] running `"docker" "start" "-a" "7a615d5d59cb2c42b9906684c923808fe11ab0aae31138522dc6f00a059a19c0"` [INFO] [stderr] Compiling fonterator v0.3.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.66s [INFO] running `"docker" "inspect" "7a615d5d59cb2c42b9906684c923808fe11ab0aae31138522dc6f00a059a19c0"` [INFO] running `"docker" "rm" "-f" "7a615d5d59cb2c42b9906684c923808fe11ab0aae31138522dc6f00a059a19c0"` [INFO] [stdout] 7a615d5d59cb2c42b9906684c923808fe11ab0aae31138522dc6f00a059a19c0 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fonterator/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"` [INFO] [stdout] 6e6f7bb29c8c9f050ef9680d44a00482ae6ec7ae4c918546240facfabccd20c4 [INFO] running `"docker" "start" "-a" "6e6f7bb29c8c9f050ef9680d44a00482ae6ec7ae4c918546240facfabccd20c4"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/fonterator-b495cd9f2d413145 [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 fonterator [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 19) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 19) 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:999:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55cdd2ea1c0b - backtrace::backtrace::libunwind::trace::hcbf63b8d794b15f4 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55cdd2ea1c0b - backtrace::backtrace::trace_unsynchronized::h681e1cb201a9972d [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55cdd2ea1c0b - std::sys_common::backtrace::_print::hd27175ce39811176 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55cdd2ea1c0b - std::sys_common::backtrace::print::h117e2eebf9a1e122 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55cdd2ea1c0b - std::panicking::default_hook::{{closure}}::h6369b988ee675335 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 5: 0x55cdd2ea190c - std::panicking::default_hook::hfaefd2bea4c25f9e [INFO] [stdout] at src/libstd/panicking.rs:212 [INFO] [stdout] 6: 0x55cdd2ea2320 - std::panicking::rust_panic_with_hook::h02c52718165ccced [INFO] [stdout] at src/libstd/panicking.rs:475 [INFO] [stdout] 7: 0x55cdd2ea1ea2 - std::panicking::continue_panic_fmt::h9e135674c1df51b4 [INFO] [stdout] at src/libstd/panicking.rs:382 [INFO] [stdout] 8: 0x55cdd2ea1d86 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:309 [INFO] [stdout] 9: 0x55cdd2eb6e5d - core::panicking::panic_fmt::h58c956553ac8538f [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x55cdd2e79f28 - core::result::unwrap_failed::h95788cb8fbb48935 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/macros.rs:18 [INFO] [stdout] 11: 0x55cdd2e0ec9c - core::result::Result::unwrap::hff901df56d108109 [INFO] [stdout] 12: 0x55cdd2e05fe7 - rust_out::main::h1cf9155cb6204ee7 [INFO] [stdout] 13: 0x55cdd2e06123 - std::rt::lang_start::{{closure}}::h9fbaadd62f116a0f [INFO] [stdout] 14: 0x55cdd2ea1d23 - std::rt::lang_start_internal::{{closure}}::hcbc5c8394111530e [INFO] [stdout] at src/libstd/rt.rs:49 [INFO] [stdout] 15: 0x55cdd2ea1d23 - std::panicking::try::do_call::h84c4ef65129422bb [INFO] [stdout] at src/libstd/panicking.rs:294 [INFO] [stdout] 16: 0x55cdd2ea40aa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 17: 0x55cdd2ea282d - std::panicking::try::h2c4ddfbb8ee8ea48 [INFO] [stdout] at src/libstd/panicking.rs:273 [INFO] [stdout] 18: 0x55cdd2ea282d - std::panic::catch_unwind::hdaf4c8aaf8d806d4 [INFO] [stdout] at src/libstd/panic.rs:388 [INFO] [stdout] 19: 0x55cdd2ea282d - std::rt::lang_start_internal::h62b0fb13d258520d [INFO] [stdout] at src/libstd/rt.rs:48 [INFO] [stdout] 20: 0x55cdd2e06105 - std::rt::lang_start::h785a19efdcd9f3c2 [INFO] [stdout] 21: 0x55cdd2e0609b - main [INFO] [stdout] 22: 0x7f733a9b42e1 - __libc_start_main [INFO] [stdout] 23: 0x55cdd2da642a - _start [INFO] [stdout] 24: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 19) [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" "6e6f7bb29c8c9f050ef9680d44a00482ae6ec7ae4c918546240facfabccd20c4"` [INFO] running `"docker" "rm" "-f" "6e6f7bb29c8c9f050ef9680d44a00482ae6ec7ae4c918546240facfabccd20c4"` [INFO] [stdout] 6e6f7bb29c8c9f050ef9680d44a00482ae6ec7ae4c918546240facfabccd20c4