[INFO] fetching crate utf8_slice 1.0.0...
[INFO] testing utf8_slice-1.0.0 against 1.90.0 for beta-1.91-2
[INFO] extracting crate utf8_slice 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate utf8_slice 1.0.0
[INFO] finished tweaking crates.io crate utf8_slice 1.0.0
[INFO] tweaked toml for crates.io crate utf8_slice 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate utf8_slice 1.0.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8eb1b6ad84b3df80b2818900b72fd991b8e17081658ddb7e786ca3c318a0d1b
[INFO] running `Command { std: "docker" "start" "-a" "a8eb1b6ad84b3df80b2818900b72fd991b8e17081658ddb7e786ca3c318a0d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8eb1b6ad84b3df80b2818900b72fd991b8e17081658ddb7e786ca3c318a0d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8eb1b6ad84b3df80b2818900b72fd991b8e17081658ddb7e786ca3c318a0d1b", kill_on_drop: false }`
[INFO] [stdout] a8eb1b6ad84b3df80b2818900b72fd991b8e17081658ddb7e786ca3c318a0d1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49ff05905b32f1a84cf3853a7481cd231c0d748d0471f2af3ee6f96666aee6b3
[INFO] running `Command { std: "docker" "start" "-a" "49ff05905b32f1a84cf3853a7481cd231c0d748d0471f2af3ee6f96666aee6b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8_slice v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "49ff05905b32f1a84cf3853a7481cd231c0d748d0471f2af3ee6f96666aee6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49ff05905b32f1a84cf3853a7481cd231c0d748d0471f2af3ee6f96666aee6b3", kill_on_drop: false }`
[INFO] [stdout] 49ff05905b32f1a84cf3853a7481cd231c0d748d0471f2af3ee6f96666aee6b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25b6a68058be019a8fa14948b5e00722cbb0fbcbdb879434197abc82b107223c
[INFO] running `Command { std: "docker" "start" "-a" "25b6a68058be019a8fa14948b5e00722cbb0fbcbdb879434197abc82b107223c", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8_slice v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "25b6a68058be019a8fa14948b5e00722cbb0fbcbdb879434197abc82b107223c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b6a68058be019a8fa14948b5e00722cbb0fbcbdb879434197abc82b107223c", kill_on_drop: false }`
[INFO] [stdout] 25b6a68058be019a8fa14948b5e00722cbb0fbcbdb879434197abc82b107223c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a2ff202d053cf2f669e2c4193928249a7b8e73886907800525475506535bfb70
[INFO] running `Command { std: "docker" "start" "-a" "a2ff202d053cf2f669e2c4193928249a7b8e73886907800525475506535bfb70", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/utf8_slice-65098385abbecb51)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_len ... ok
[INFO] [stdout] test tests::test_same_as_std_slice ... ok
[INFO] [stdout] test tests::test_slice ... ok
[INFO] [stdout] test tests::test_from ... ok
[INFO] [stdout] test tests::test_till ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests utf8_slice
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - from (line 82) ... ok
[INFO] [stdout] test src/lib.rs - till (line 106) ... FAILED
[INFO] [stdout] test src/lib.rs - slice (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - till (line 106) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' panicked at src/lib.rs:8:1:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "The "
[INFO] [stdout]  right: "The 🚀"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x569a5e3f9b82 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x569a5e3f9b82 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x569a5e3f9b82 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x569a5e3f9b82 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x569a5e415223 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x569a5e415223 - core::fmt::write::h8a494366950f23bb
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x569a5e3f7893 - std::io::default_write_fmt::ha27fbccbc65eb6fa
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x569a5e3f7893 - std::io::Write::write_fmt::h6556609fca33d0b1
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x569a5e3f99d2 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x569a5e3faa63 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x569a5e3fa845 - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:327:9
[INFO] [stdout]   11:     0x569a5e3fb335 - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:833:13
[INFO] [stdout]   12:     0x569a5e3fb1ca - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
[INFO] [stdout]   13:     0x569a5e3fa079 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x569a5e3fae5d - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stdout]   15:     0x569a5e414710 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stdout]   16:     0x569a5e414997 - core::panicking::assert_failed_inner::h102b4539a88470c2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:448:17
[INFO] [stdout]   17:     0x569a5e3d7e34 - core::panicking::assert_failed::h05ee5a8bf7a3e20e
[INFO] [stdout]   18:     0x569a5e3d7ed9 - rust_out::main::_doctest_main_src_lib_rs_106_0::h53c8584be0c4ffaf
[INFO] [stdout]   19:     0x569a5e3d7e56 - rust_out::main::h2d10ba762d3f8adf
[INFO] [stdout]   20:     0x569a5e3d7d73 - core::ops::function::FnOnce::call_once::h89333dd4ac8e03fc
[INFO] [stdout]   21:     0x569a5e3d7d26 - std::sys::backtrace::__rust_begin_short_backtrace::h8a10de1e92516da1
[INFO] [stdout]   22:     0x569a5e3d7d09 - std::rt::lang_start::{{closure}}::h0af3a8cb06b34c3e
[INFO] [stdout]   23:     0x569a5e3f57e0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h638295a043b40957
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:290:21
[INFO] [stdout]   24:     0x569a5e3f57e0 - std::panicking::catch_unwind::do_call::hbd68098bdea1ca50
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   25:     0x569a5e3f57e0 - std::panicking::catch_unwind::h50591d85bf847c7c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   26:     0x569a5e3f57e0 - std::panic::catch_unwind::h2487b4c4f2ae22c6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x569a5e3f57e0 - std::rt::lang_start_internal::{{closure}}::h61f0945cc6c9a811
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x569a5e3f57e0 - std::panicking::catch_unwind::do_call::h34b9c3722acd6bd1
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x569a5e3f57e0 - std::panicking::catch_unwind::hf9a822ea043fb0d6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x569a5e3f57e0 - std::panic::catch_unwind::h5b3cac802237ed89
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x569a5e3f57e0 - std::rt::lang_start_internal::h34f9328d113fd60a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x569a5e3d7cf1 - std::rt::lang_start::h8f736fe0a226e45f
[INFO] [stdout]   33:     0x569a5e3d7ef5 - main
[INFO] [stdout]   34:     0x7fb2331eb1ca - <unknown>
[INFO] [stdout]   35:     0x7fb2331eb28b - __libc_start_main
[INFO] [stdout]   36:     0x569a5e3d7c05 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - till (line 106)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a2ff202d053cf2f669e2c4193928249a7b8e73886907800525475506535bfb70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ff202d053cf2f669e2c4193928249a7b8e73886907800525475506535bfb70", kill_on_drop: false }`
[INFO] [stdout] a2ff202d053cf2f669e2c4193928249a7b8e73886907800525475506535bfb70
