[INFO] fetching crate uciengine 0.1.33...
[INFO] testing uciengine-0.1.33 against 1.75.0 for beta-1.76-1
[INFO] extracting crate uciengine 0.1.33 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate uciengine 0.1.33 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uciengine 0.1.33
[INFO] finished tweaking crates.io crate uciengine 0.1.33
[INFO] tweaked toml for crates.io crate uciengine 0.1.33 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate uciengine 0.1.33 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v1.1.0
[INFO] [stderr]   Downloaded envor v0.1.5
[INFO] [stderr]   Downloaded tokio v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74708fb6d4cf86e2d3dc33d4a96cdc168c2410d8cddd0cc557d463ba260e9244
[INFO] running `Command { std: "docker" "start" "-a" "74708fb6d4cf86e2d3dc33d4a96cdc168c2410d8cddd0cc557d463ba260e9244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74708fb6d4cf86e2d3dc33d4a96cdc168c2410d8cddd0cc557d463ba260e9244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74708fb6d4cf86e2d3dc33d4a96cdc168c2410d8cddd0cc557d463ba260e9244", kill_on_drop: false }`
[INFO] [stdout] 74708fb6d4cf86e2d3dc33d4a96cdc168c2410d8cddd0cc557d463ba260e9244
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60d3f7889d661d332ec0861a1a6178887f616fddeb1697ff3c6f42345921ff25
[INFO] running `Command { std: "docker" "start" "-a" "60d3f7889d661d332ec0861a1a6178887f616fddeb1697ff3c6f42345921ff25", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling envor v0.1.5
[INFO] [stderr]    Compiling tokio v1.0.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling uciengine v0.1.33 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::string::String::len` that must be used
[INFO] [stdout]    --> src/analysis.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | /                 value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout] 103 | |                     total_len -= 1;
[INFO] [stdout] 104 | |                     ( *c != trim ) || ( total_len > $size )
[INFO] [stdout] 105 | |                 }).collect::<String>().len();
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 191 | / gen_str_buff!(
[INFO] [stdout] 192 | | /// UciBuff
[INFO] [stdout] 193 | | => UciBuff, UCI_MAX_LENGTH,
[INFO] [stdout] 194 | | /// PvBuff
[INFO] [stdout] 195 | | => PvBuff, PV_BUFF_SIZE
[INFO] [stdout] 196 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `gen_str_buff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let _ = value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.29s
[INFO] running `Command { std: "docker" "inspect" "60d3f7889d661d332ec0861a1a6178887f616fddeb1697ff3c6f42345921ff25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d3f7889d661d332ec0861a1a6178887f616fddeb1697ff3c6f42345921ff25", kill_on_drop: false }`
[INFO] [stdout] 60d3f7889d661d332ec0861a1a6178887f616fddeb1697ff3c6f42345921ff25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a73c93e4976964512fe7d78153b469cf757a22e7208a817b7b0eed15f1c97890
[INFO] running `Command { std: "docker" "start" "-a" "a73c93e4976964512fe7d78153b469cf757a22e7208a817b7b0eed15f1c97890", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stdout] warning: unused return value of `std::string::String::len` that must be used
[INFO] [stdout]    --> src/analysis.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | /                 value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout] 103 | |                     total_len -= 1;
[INFO] [stdout] 104 | |                     ( *c != trim ) || ( total_len > $size )
[INFO] [stdout] 105 | |                 }).collect::<String>().len();
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 191 | / gen_str_buff!(
[INFO] [stdout] 192 | | /// UciBuff
[INFO] [stdout] 193 | | => UciBuff, UCI_MAX_LENGTH,
[INFO] [stdout] 194 | | /// PvBuff
[INFO] [stdout] 195 | | => PvBuff, PV_BUFF_SIZE
[INFO] [stdout] 196 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `gen_str_buff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let _ = value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling env_logger v0.8.2
[INFO] [stderr]    Compiling uciengine v0.1.33 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::string::String::len` that must be used
[INFO] [stdout]    --> src/analysis.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | /                 value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout] 103 | |                     total_len -= 1;
[INFO] [stdout] 104 | |                     ( *c != trim ) || ( total_len > $size )
[INFO] [stdout] 105 | |                 }).collect::<String>().len();
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 191 | / gen_str_buff!(
[INFO] [stdout] 192 | | /// UciBuff
[INFO] [stdout] 193 | | => UciBuff, UCI_MAX_LENGTH,
[INFO] [stdout] 194 | | /// PvBuff
[INFO] [stdout] 195 | | => PvBuff, PV_BUFF_SIZE
[INFO] [stdout] 196 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `gen_str_buff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let _ = value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.04s
[INFO] running `Command { std: "docker" "inspect" "a73c93e4976964512fe7d78153b469cf757a22e7208a817b7b0eed15f1c97890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a73c93e4976964512fe7d78153b469cf757a22e7208a817b7b0eed15f1c97890", kill_on_drop: false }`
[INFO] [stdout] a73c93e4976964512fe7d78153b469cf757a22e7208a817b7b0eed15f1c97890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bbf9c12218695b71f70b558a55fe5c1ef3c26cddcce7f67d11b238974e3710a2
[INFO] running `Command { std: "docker" "start" "-a" "bbf9c12218695b71f70b558a55fe5c1ef3c26cddcce7f67d11b238974e3710a2", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::string::String::len` that must be used
[INFO] [stderr]    --> src/analysis.rs:102:8
[INFO] [stderr]     |
[INFO] [stderr] 102 | /                 value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stderr] 103 | |                     total_len -= 1;
[INFO] [stderr] 104 | |                     ( *c != trim ) || ( total_len > $size )
[INFO] [stderr] 105 | |                 }).collect::<String>().len();
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr] ...
[INFO] [stderr] 191 | / gen_str_buff!(
[INFO] [stderr] 192 | | /// UciBuff
[INFO] [stderr] 193 | | => UciBuff, UCI_MAX_LENGTH,
[INFO] [stderr] 194 | | /// PvBuff
[INFO] [stderr] 195 | | => PvBuff, PV_BUFF_SIZE
[INFO] [stderr] 196 | | );
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `gen_str_buff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 let _ = value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `uciengine` (lib) generated 1 warning
[INFO] [stderr] warning: `uciengine` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/uciengine-ca15054d5eeded2f)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test analysis::set_trim ... ok
[INFO] [stdout] test analysis::parse_error ... 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]    Doc-tests uciengine
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/uciengine.rs - uciengine::GoJob::pos_moves (line 223) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 5) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at /opt/rustwide/workdir/src/uciengine.rs:311:14:
[INFO] [stdout] failed to spawn engine: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55abfb20286c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55abfb20286c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55abfb20286c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55abfb20286c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55abfb227af0 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55abfb227af0 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55abfb20067f - std::io::Write::write_fmt::h5fc9997dfe05f882
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x55abfb202654 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55abfb202654 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55abfb203c57 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x55abfb2039bf - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:292:9
[INFO] [stdout]   11:     0x55abfb2040d8 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:779:13
[INFO] [stdout]   12:     0x55abfb203fbe - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   13:     0x55abfb202d36 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   14:     0x55abfb203d22 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   15:     0x55abfaf61975 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x55abfaf61f03 - core::result::unwrap_failed::hddb4fea594200c52
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1653:5
[INFO] [stdout]   17:     0x55abfaf6c9a4 - core::result::Result<T,E>::expect::h9b0a7548331ad395
[INFO] [stdout]   18:     0x55abfaf9ec56 - uciengine::uciengine::UciEngine::new::h855ad624bc3be4b1
[INFO] [stdout]   19:     0x55abfafa3b73 - rust_out::main::{{closure}}::h22f49531779efd9f
[INFO] [stdout]   20:     0x55abfaf78849 - tokio::park::thread::CachedParkThread::block_on::{{closure}}::h7190c46ab9ccd586
[INFO] [stdout]   21:     0x55abfaf723b2 - tokio::coop::with_budget::{{closure}}::h501e5572af965e72
[INFO] [stdout]   22:     0x55abfaf63e5f - std::thread::local::LocalKey<T>::try_with::h64bb8209e35ec133
[INFO] [stdout]   23:     0x55abfaf63957 - std::thread::local::LocalKey<T>::with::h7aca2db077dbb5e5
[INFO] [stdout]   24:     0x55abfaf782c4 - tokio::park::thread::CachedParkThread::block_on::h017cd365069db6a6
[INFO] [stdout]   25:     0x55abfaf969d7 - tokio::runtime::enter::Enter::block_on::hc9d6ab896e0711a0
[INFO] [stdout]   26:     0x55abfaf7f359 - tokio::runtime::thread_pool::ThreadPool::block_on::h9fba12b08d5d990b
[INFO] [stdout]   27:     0x55abfaf96b4b - tokio::runtime::Runtime::block_on::h1539f711f9852763
[INFO] [stdout]   28:     0x55abfafa3763 - rust_out::main::h30c75f3fd63b0ab9
[INFO] [stdout]   29:     0x55abfaf66db3 - core::ops::function::FnOnce::call_once::hdffa7197cc8f0301
[INFO] [stdout]   30:     0x55abfaf63586 - std::sys_common::backtrace::__rust_begin_short_backtrace::h72b7c7c1f013ad2d
[INFO] [stdout]   31:     0x55abfaf635d9 - std::rt::lang_start::{{closure}}::hf4145f422e8b3848
[INFO] [stdout]   32:     0x55abfb1fc0f7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd95060ecd5e1ca24
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   33:     0x55abfb1fc0f7 - std::panicking::try::do_call::h6e8cf51db32a6e4b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   34:     0x55abfb1fc0f7 - std::panicking::try::h3a52eefe24fe3c29
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   35:     0x55abfb1fc0f7 - std::panic::catch_unwind::h24c28c23c02c3841
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   36:     0x55abfb1fc0f7 - std::rt::lang_start_internal::{{closure}}::h705d3c9cbc06ef47
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/rt.rs:148:48
[INFO] [stdout]   37:     0x55abfb1fc0f7 - std::panicking::try::do_call::ha21f52ba13158470
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x55abfb1fc0f7 - std::panicking::try::h5581346bf6aeb1f8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x55abfb1fc0f7 - std::panic::catch_unwind::h7919645a6b72e25b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x55abfb1fc0f7 - std::rt::lang_start_internal::h12de51168669836e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/rt.rs:148:20
[INFO] [stdout]   41:     0x55abfaf635b7 - std::rt::lang_start::h33b3924d9c34082e
[INFO] [stdout]   42:     0x55abfafa4995 - main
[INFO] [stdout]   43:     0x7f1299cedd90 - <unknown>
[INFO] [stdout]   44:     0x7f1299cede40 - __libc_start_main
[INFO] [stdout]   45:     0x55abfaf62205 - _start
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 5)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.84s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "bbf9c12218695b71f70b558a55fe5c1ef3c26cddcce7f67d11b238974e3710a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbf9c12218695b71f70b558a55fe5c1ef3c26cddcce7f67d11b238974e3710a2", kill_on_drop: false }`
[INFO] [stdout] bbf9c12218695b71f70b558a55fe5c1ef3c26cddcce7f67d11b238974e3710a2
[INFO] testing uciengine-0.1.33 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate uciengine 0.1.33 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate uciengine 0.1.33 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uciengine 0.1.33
[INFO] finished tweaking crates.io crate uciengine 0.1.33
[INFO] tweaked toml for crates.io crate uciengine 0.1.33 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate uciengine 0.1.33 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f3373e573c82ee7d078cd8666b31a6f361539611c36c99a74ab989d25faf928
[INFO] running `Command { std: "docker" "start" "-a" "5f3373e573c82ee7d078cd8666b31a6f361539611c36c99a74ab989d25faf928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f3373e573c82ee7d078cd8666b31a6f361539611c36c99a74ab989d25faf928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3373e573c82ee7d078cd8666b31a6f361539611c36c99a74ab989d25faf928", kill_on_drop: false }`
[INFO] [stdout] 5f3373e573c82ee7d078cd8666b31a6f361539611c36c99a74ab989d25faf928
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5aac228c4c2ae95a8e62f4cc268a054a420b95e0131c0ba5aaeb10c62bd7a15c
[INFO] running `Command { std: "docker" "start" "-a" "5aac228c4c2ae95a8e62f4cc268a054a420b95e0131c0ba5aaeb10c62bd7a15c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling envor v0.1.5
[INFO] [stderr]    Compiling tokio v1.0.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling uciengine v0.1.33 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::string::String::len` that must be used
[INFO] [stdout]    --> src/analysis.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | /                 value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout] 103 | |                     total_len -= 1;
[INFO] [stdout] 104 | |                     ( *c != trim ) || ( total_len > $size )
[INFO] [stdout] 105 | |                 }).collect::<String>().len();
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 191 | / gen_str_buff!(
[INFO] [stdout] 192 | | /// UciBuff
[INFO] [stdout] 193 | | => UciBuff, UCI_MAX_LENGTH,
[INFO] [stdout] 194 | | /// PvBuff
[INFO] [stdout] 195 | | => PvBuff, PV_BUFF_SIZE
[INFO] [stdout] 196 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `gen_str_buff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let _ = value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.16s
[INFO] running `Command { std: "docker" "inspect" "5aac228c4c2ae95a8e62f4cc268a054a420b95e0131c0ba5aaeb10c62bd7a15c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aac228c4c2ae95a8e62f4cc268a054a420b95e0131c0ba5aaeb10c62bd7a15c", kill_on_drop: false }`
[INFO] [stdout] 5aac228c4c2ae95a8e62f4cc268a054a420b95e0131c0ba5aaeb10c62bd7a15c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92adc1f64e1be11a997c9c909ba5f2ce6d8ac6282b50077d5c30868079bdd00e
[INFO] running `Command { std: "docker" "start" "-a" "92adc1f64e1be11a997c9c909ba5f2ce6d8ac6282b50077d5c30868079bdd00e", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] warning: unused return value of `std::string::String::len` that must be used
[INFO] [stdout]    --> src/analysis.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | /                 value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout] 103 | |                     total_len -= 1;
[INFO] [stdout] 104 | |                     ( *c != trim ) || ( total_len > $size )
[INFO] [stdout] 105 | |                 }).collect::<String>().len();
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 191 | / gen_str_buff!(
[INFO] [stdout] 192 | | /// UciBuff
[INFO] [stdout] 193 | | => UciBuff, UCI_MAX_LENGTH,
[INFO] [stdout] 194 | | /// PvBuff
[INFO] [stdout] 195 | | => PvBuff, PV_BUFF_SIZE
[INFO] [stdout] 196 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `gen_str_buff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let _ = value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling env_logger v0.8.2
[INFO] [stderr]    Compiling uciengine v0.1.33 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::string::String::len` that must be used
[INFO] [stdout]    --> src/analysis.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | /                 value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout] 103 | |                     total_len -= 1;
[INFO] [stdout] 104 | |                     ( *c != trim ) || ( total_len > $size )
[INFO] [stdout] 105 | |                 }).collect::<String>().len();
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 191 | / gen_str_buff!(
[INFO] [stdout] 192 | | /// UciBuff
[INFO] [stdout] 193 | | => UciBuff, UCI_MAX_LENGTH,
[INFO] [stdout] 194 | | /// PvBuff
[INFO] [stdout] 195 | | => PvBuff, PV_BUFF_SIZE
[INFO] [stdout] 196 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `gen_str_buff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let _ = value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "92adc1f64e1be11a997c9c909ba5f2ce6d8ac6282b50077d5c30868079bdd00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92adc1f64e1be11a997c9c909ba5f2ce6d8ac6282b50077d5c30868079bdd00e", kill_on_drop: false }`
[INFO] [stdout] 92adc1f64e1be11a997c9c909ba5f2ce6d8ac6282b50077d5c30868079bdd00e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 440c8cc0a12eacd2ca82a26055db312f3510268842a855377c9e741f974e6968
[INFO] running `Command { std: "docker" "start" "-a" "440c8cc0a12eacd2ca82a26055db312f3510268842a855377c9e741f974e6968", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::string::String::len` that must be used
[INFO] [stderr]    --> src/analysis.rs:102:8
[INFO] [stderr]     |
[INFO] [stderr] 102 | /                 value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stderr] 103 | |                     total_len -= 1;
[INFO] [stderr] 104 | |                     ( *c != trim ) || ( total_len > $size )
[INFO] [stderr] 105 | |                 }).collect::<String>().len();
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr] ...
[INFO] [stderr] 191 | / gen_str_buff!(
[INFO] [stderr] 192 | | /// UciBuff
[INFO] [stderr] 193 | | => UciBuff, UCI_MAX_LENGTH,
[INFO] [stderr] 194 | | /// PvBuff
[INFO] [stderr] 195 | | => PvBuff, PV_BUFF_SIZE
[INFO] [stderr] 196 | | );
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `gen_str_buff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 let _ = value_ref.to_string().chars().rev().take_while(|c| {
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `uciengine` (lib) generated 1 warning
[INFO] [stderr] warning: `uciengine` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/uciengine-d645dac6c7f9da66)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test analysis::set_trim ... ok
[INFO] [stdout] test analysis::parse_error ... 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]    Doc-tests uciengine
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/uciengine.rs - uciengine::GoJob::pos_moves (line 223) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 5) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at /opt/rustwide/workdir/src/uciengine.rs:311:14:
[INFO] [stdout] failed to spawn engine: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55d9d7efb6f6 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55d9d7efb6f6 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55d9d7efb6f6 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55d9d7efb6f6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h623d9b51f2f453f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55d9d7f1fd30 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55d9d7f1fd30 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55d9d7ef93ef - std::io::Write::write_fmt::hfead1eee52c2e65e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x55d9d7efb4d4 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55d9d7efb4d4 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55d9d7efcba7 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x55d9d7efc909 - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:292:9
[INFO] [stdout]   11:     0x55d9d7efd038 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:779:13
[INFO] [stdout]   12:     0x55d9d7efcf12 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13
[INFO] [stdout]   13:     0x55d9d7efbbf6 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x55d9d7efcc70 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   15:     0x55d9d7c56965 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x55d9d7c56f03 - core::result::unwrap_failed::hbe14f498be1452f9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1649:5
[INFO] [stdout]   17:     0x55d9d7c61b24 - core::result::Result<T,E>::expect::hc684b0851519b70c
[INFO] [stdout]   18:     0x55d9d7c93804 - uciengine::uciengine::UciEngine::new::he0212899667b3b47
[INFO] [stdout]   19:     0x55d9d7c98781 - rust_out::main::{{closure}}::hf12faab3902f0c3b
[INFO] [stdout]   20:     0x55d9d7c6d829 - tokio::park::thread::CachedParkThread::block_on::{{closure}}::h7e8a13e6d57a4a96
[INFO] [stdout]   21:     0x55d9d7c67342 - tokio::coop::with_budget::{{closure}}::hd5ee6e9f57f4a4ec
[INFO] [stdout]   22:     0x55d9d7c58bcf - std::thread::local::LocalKey<T>::try_with::h068195e939afb726
[INFO] [stdout]   23:     0x55d9d7c589d7 - std::thread::local::LocalKey<T>::with::h24b0145cb81da006
[INFO] [stdout]   24:     0x55d9d7c6d254 - tokio::park::thread::CachedParkThread::block_on::h454a84c1761ac6a3
[INFO] [stdout]   25:     0x55d9d7c8b457 - tokio::runtime::enter::Enter::block_on::h570738cededbefbb
[INFO] [stdout]   26:     0x55d9d7c742a9 - tokio::runtime::thread_pool::ThreadPool::block_on::hcfc1d2ad554e9027
[INFO] [stdout]   27:     0x55d9d7c8b64b - tokio::runtime::Runtime::block_on::h2d51d3c82b3e9662
[INFO] [stdout]   28:     0x55d9d7c98373 - rust_out::main::hfe3eaf8fec7e6787
[INFO] [stdout]   29:     0x55d9d7c5bb63 - core::ops::function::FnOnce::call_once::h5dc07971b7f8369c
[INFO] [stdout]   30:     0x55d9d7c585c6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h223ab43f25e5c656
[INFO] [stdout]   31:     0x55d9d7c58619 - std::rt::lang_start::{{closure}}::h0d9fe53feeac1bec
[INFO] [stdout]   32:     0x55d9d7ef4d31 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h4eb4c5e1620f29b0
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   33:     0x55d9d7ef4d31 - std::panicking::try::do_call::h73fd26535faffcdf
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   34:     0x55d9d7ef4d31 - std::panicking::try::h77ff1d98f0fb9f39
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   35:     0x55d9d7ef4d31 - std::panic::catch_unwind::hab3caf2448b95e37
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   36:     0x55d9d7ef4d31 - std::rt::lang_start_internal::{{closure}}::h8086711f9c783f78
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/rt.rs:148:48
[INFO] [stdout]   37:     0x55d9d7ef4d31 - std::panicking::try::do_call::hf920d4dc291cd6ca
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x55d9d7ef4d31 - std::panicking::try::h2b806ccc0a85db74
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x55d9d7ef4d31 - std::panic::catch_unwind::h038489539c507df2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x55d9d7ef4d31 - std::rt::lang_start_internal::h28503b88912e8a5c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/rt.rs:148:20
[INFO] [stdout]   41:     0x55d9d7c585f7 - std::rt::lang_start::h94d94f164b7bcd79
[INFO] [stdout]   42:     0x55d9d7c995b5 - main
[INFO] [stdout]   43:     0x7fca8ec86d90 - <unknown>
[INFO] [stdout]   44:     0x7fca8ec86e40 - __libc_start_main
[INFO] [stdout]   45:     0x55d9d7c57205 - _start
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 5)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.46s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "440c8cc0a12eacd2ca82a26055db312f3510268842a855377c9e741f974e6968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "440c8cc0a12eacd2ca82a26055db312f3510268842a855377c9e741f974e6968", kill_on_drop: false }`
[INFO] [stdout] 440c8cc0a12eacd2ca82a26055db312f3510268842a855377c9e741f974e6968
