[INFO] fetching crate read_utf8 0.1.2...
[INFO] testing read_utf8-0.1.2 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate read_utf8 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate read_utf8 0.1.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate read_utf8 0.1.2
[INFO] tweaked toml for crates.io crate read_utf8 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate read_utf8 0.1.2 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] crate crates.io crate read_utf8 0.1.2 already has a lockfile, it will not be regenerated
[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-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961
[INFO] running `Command { std: "docker" "start" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961", 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" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961" "/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" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961", 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" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_utf8 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961", 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" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961" "/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 read_utf8 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961", 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" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/read_utf8-342599e169ae9670)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/read_utf8-afe836c7e7535f1b)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_non_ascii_char.rs (/opt/rustwide/target/release/deps/test_non_ascii_char-bde3183cbf3fcbd0)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests_non_ascii_char::test_ascii_char ... ok
[INFO] [stdout] test tests_non_ascii_char::test_non_ascii_char ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_number_bytes.rs (/opt/rustwide/target/release/deps/test_number_bytes-bef638aa529c202e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_three ... ok
[INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_invalid ... ok
[INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_two ... ok
[INFO] [stderr]      Running tests/test_read_char.rs (/opt/rustwide/target/release/deps/test_read_char-6592a29a307a056b)
[INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_four ... ok
[INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_one ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests_read_char::simple_read ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests_read_char::simple_read stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests_read_char::simple_read' (292) panicked at src/read_utf8_char.rs:34:17:
[INFO] [stdout] Unable to create ReadUTF8Char
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6140ad6b2d31 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6140ad6c6f3a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x6140ad6b71cc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x6140ad68f226 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6140ad6ab499 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x6140ad646970 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x6140ad6ab652 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x6140ad68f304 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6140ad688059 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x6140ad68fecd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x6140ad6c766c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6140ad67ac99 - <read_utf8[9fb761b414a9c7ba]::read_utf8_char::ReadUTF8Char>::new
[INFO] [stdout]   12:     0x6140ad63966b - test_read_char[9474a9d7bb509a38]::tests_read_char::simple_read
[INFO] [stdout]   13:     0x6140ad639be9 - <test_read_char[9474a9d7bb509a38]::tests_read_char::simple_read::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x6140ad639c5b - 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:     0x6140ad6472c5 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   16:     0x6140ad640b84 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x6140ad64a422 - <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:     0x6140ad6b2609 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x79181f561dfa - <unknown>
[INFO] [stdout]   20:     0x79181f5f53d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests_read_char::simple_read
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test_read_char`
[INFO] running `Command { std: "docker" "inspect" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961", kill_on_drop: false }`
[INFO] [stdout] 383fb88de2c5cbeea91fefcf74942aab7f483848d1e73e2ecacfa8e21ace7961
