[INFO] fetching crate rs-fsring 3.1.0...
[INFO] testing rs-fsring-3.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate rs-fsring 3.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rs-fsring 3.1.0
[INFO] finished tweaking crates.io crate rs-fsring 3.1.0
[INFO] tweaked toml for crates.io crate rs-fsring 3.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rs-fsring 3.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5
[INFO] running `Command { std: "docker" "start" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs-fsring v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs-fsring v3.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/u/buf.rs:291:34
[INFO] [stdout]     |
[INFO] [stdout] 291 |             let chk = |_: &[u8]| (b"cafef00ddeadbeafface864299792458".to_vec());
[INFO] [stdout]     |                                  ^                                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 291 -             let chk = |_: &[u8]| (b"cafef00ddeadbeafface864299792458".to_vec());
[INFO] [stdout] 291 +             let chk = |_: &[u8]| b"cafef00ddeadbeafface864299792458".to_vec();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 2.34s
[INFO] running `Command { std: "docker" "inspect" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/u/buf.rs:291:34
[INFO] [stderr]     |
[INFO] [stderr] 291 |             let chk = |_: &[u8]| (b"cafef00ddeadbeafface864299792458".to_vec());
[INFO] [stderr]     |                                  ^                                            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 291 -             let chk = |_: &[u8]| (b"cafef00ddeadbeafface864299792458".to_vec());
[INFO] [stderr] 291 +             let chk = |_: &[u8]| b"cafef00ddeadbeafface864299792458".to_vec();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `rs-fsring` (lib test) generated 1 warning (run `cargo fix --lib -p rs-fsring --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/rs_fsring-cf8533656e9e2eb0)
[INFO] [stdout] 
[INFO] [stdout] running 47 tests
[INFO] [stdout] test empty::test_empty::empty_checker_new_default::test_empty ... ignored
[INFO] [stdout] test integer::u::test_u::next_gen_by_prev_u8_hex::test_valid_name ... ok
[INFO] [stdout] test empty::test_empty::nonempty_checker_new::test_empty ... ok
[INFO] [stdout] test empty::test_empty::kind2empty::test_noent ... ok
[INFO] [stdout] test integer::u::test_u::next_gen_by_prev_u8_new::test_valid_name ... ok
[INFO] [stdout] test list::test_list::list_request_handler_new::test_empty ... ok
[INFO] [stdout] test full::test_full::fullpath_builder_new::test_u8 ... ok
[INFO] [stdout] test list::test_list::list_request_handler_new_default::test_all_empty ... ignored
[INFO] [stdout] test integer::u::test_u::name_checker_u8_new::test_all_valid ... ok
[INFO] [stdout] test integer::u::test_u::u2n3_hex::test_max ... ok
[INFO] [stdout] test integer::u::test_u::name_checker_u8_new::test_invalid ... ok
[INFO] [stdout] test list::test_list::list_request_handler_new::test_empty_all ... ok
[INFO] [stdout] test list::test_list::list_request_handler_new::test_filter_err ... ok
[INFO] [stdout] test next::u::test_u::next_random_u8_new_from_path_default::test_single ... ignored
[INFO] [stdout] test empty::test_empty::kind2empty::test_err ... ok
[INFO] [stdout] test empty::test_empty::len2empty::test_non0 ... ok
[INFO] [stdout] test empty::test_empty::len2empty::test_zero ... ok
[INFO] [stdout] test next::u::test_u::next_u8_iter_new::test_256 ... ok
[INFO] [stdout] test push::test_push::push_new::test_no_next ... ok
[INFO] [stdout] test next::test_next::get_next_checked_new::test_noent ... ok
[INFO] [stdout] test next::test_next::get_next_simple_retry::test_empty1st ... ok
[INFO] [stdout] test read::test_read::read_handler_new_default::test_empty ... FAILED
[INFO] [stdout] test next::test_next::get_next_checked_new::test_empty ... ok
[INFO] [stdout] test next::u::test_u::next_random_u8_new_from_read::test_number ... ok
[INFO] [stdout] test next::test_next::get_next_simple_retry::test_empty_candidates ... ok
[INFO] [stdout] test test_lib::remove_broken_buffers::test_invalid ... ignored
[INFO] [stdout] test test_lib::remove_broken_buffers::test_valid ... ignored
[INFO] [stdout] test test_lib::remove_broken_buffers::test_without_checksum ... ignored
[INFO] [stdout] test u::buf::test_buf::ring_buffer_u8_new_default::test_del ... ignored
[INFO] [stdout] test u::buf::test_buf::ring_buffer_u8_new_default::test_get ... ignored
[INFO] [stdout] test u::buf::test_buf::ring_buffer_u8_new_default::test_list ... ignored
[INFO] [stdout] test u::buf::test_buf::ring_buffer_u8_new_default::test_push ... ignored
[INFO] [stdout] test u::buf::test_buf::ring_buffer_u8_new_default_with_checksum::test_checksum_invalid ... ignored
[INFO] [stdout] test u::buf::test_buf::ring_buffer_u8_new_default_with_checksum::test_checksum_valid ... ignored
[INFO] [stdout] test u::buf::test_buf::ring_buffer_u8_new_default_with_checksum::test_push ... ignored
[INFO] [stdout] test u::buf::test_buf::ring_buffer_u8_new_default_with_checksum::test_valid ... ignored
[INFO] [stdout] test write::test_write::writer_unchecked_new_default::test_dir_noent ... ignored
[INFO] [stdout] test integer::u::test_u::name_checker_u8_new::test_zero ... ok
[INFO] [stdout] test read::test_read::read_handler_new_default_with_checksum::test_empty ... FAILED
[INFO] [stdout] test integer::u::test_u::u2n3_hex::test_zero ... ok
[INFO] [stdout] test write::test_write::writer_checked_new::test_non_empty ... ok
[INFO] [stdout] test list::u::test_u::list_names_u8_all_new::test_len ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test next::test_next::get_next_checked_new::test_unexpected ... ok
[INFO] [stdout] test list::test_list::list_request_handler_new::test_unable2get_list ... ok
[INFO] [stdout] test list::test_list::list_request_handler_new::test_nonempty_all ... ok
[INFO] [stdout] test next::test_next::get_next_simple_retry::test_no_empty ... ok
[INFO] [stdout] test next::test_next::get_next_checked_new::test_used ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- read::test_read::read_handler_new_default::test_empty stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'read::test_read::read_handler_new_default::test_empty' (222) panicked at src/read.rs:192:47:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x599026464491 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x599026478aba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x599026468bfc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x59902643f2f6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x59902645c129 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x5990263f7660 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x59902645c2e2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x59902643f3a2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x599026437f69 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x59902643ff9d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x5990264791ec - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x599026478fc2 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x5990263dbd7a - rs_fsring[f24d507fe34008f8]::read::test_read::read_handler_new_default::test_empty
[INFO] [stdout]   13:     0x5990263dafb9 - <rs_fsring[f24d507fe34008f8]::read::test_read::read_handler_new_default::test_empty::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x5990263ea94b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   15:     0x5990263f7fb5 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   16:     0x5990263f1874 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x5990263fb112 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x599026463b79 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x7263a7601dfa - <unknown>
[INFO] [stdout]   20:     0x7263a76953d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- read::test_read::read_handler_new_default_with_checksum::test_empty stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'read::test_read::read_handler_new_default_with_checksum::test_empty' (223) panicked at src/read.rs:209:47:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x599026464491 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x599026478aba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x599026468bfc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x59902643f2f6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x59902645c129 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x5990263f7660 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x59902645c2e2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x59902643f3a2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x599026437f69 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x59902643ff9d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x5990264791ec - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x599026478fc2 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x5990263dbf5a - rs_fsring[f24d507fe34008f8]::read::test_read::read_handler_new_default_with_checksum::test_empty
[INFO] [stdout]   13:     0x5990263dafd9 - <rs_fsring[f24d507fe34008f8]::read::test_read::read_handler_new_default_with_checksum::test_empty::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x5990263ea94b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   15:     0x5990263f7fb5 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   16:     0x5990263f1874 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x5990263fb112 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x599026463b79 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x7263a7601dfa - <unknown>
[INFO] [stdout]   20:     0x7263a76953d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     read::test_read::read_handler_new_default::test_empty
[INFO] [stdout]     read::test_read::read_handler_new_default_with_checksum::test_empty
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 30 passed; 2 failed; 15 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5", kill_on_drop: false }`
[INFO] [stdout] d6ef2b6c377b3335837148dd2563d86c6d59d09d7c9c17c0c88a9d41583dfca5
