[INFO] fetching crate async-session-r2d2 0.1.0... [INFO] testing async-session-r2d2-0.1.0 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate async-session-r2d2 0.1.0 into /workspace/builds/worker-44/source [INFO] validating manifest of crates.io crate async-session-r2d2 0.1.0 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate async-session-r2d2 0.1.0 [INFO] finished tweaking crates.io crate async-session-r2d2 0.1.0 [INFO] tweaked toml for crates.io crate async-session-r2d2 0.1.0 written to /workspace/builds/worker-44/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9f74c1b82a52c96478f6c106234a7bccfd5dcd3b39ba7b9028a227e619b54d28 [INFO] running `Command { std: "docker" "start" "-a" "9f74c1b82a52c96478f6c106234a7bccfd5dcd3b39ba7b9028a227e619b54d28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9f74c1b82a52c96478f6c106234a7bccfd5dcd3b39ba7b9028a227e619b54d28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f74c1b82a52c96478f6c106234a7bccfd5dcd3b39ba7b9028a227e619b54d28", kill_on_drop: false }` [INFO] [stdout] 9f74c1b82a52c96478f6c106234a7bccfd5dcd3b39ba7b9028a227e619b54d28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bbde47edb0a945776ff21bb5355a963943711fabb3f424e82e4a811e66ed4da2 [INFO] running `Command { std: "docker" "start" "-a" "bbde47edb0a945776ff21bb5355a963943711fabb3f424e82e4a811e66ed4da2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling libc v0.2.123 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling subtle v2.4.1 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling smallvec v1.8.0 [INFO] [stderr] Compiling anyhow v1.0.56 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling async-trait v0.1.53 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling itoa v1.0.1 [INFO] [stderr] Compiling opaque-debug v0.3.0 [INFO] [stderr] Compiling constant_time_eq v0.1.5 [INFO] [stderr] Compiling cpufeatures v0.2.2 [INFO] [stderr] Compiling arrayref v0.3.6 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling event-listener v2.5.2 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling base64 v0.13.0 [INFO] [stderr] Compiling instant v0.1.12 [INFO] [stderr] Compiling async-lock v2.5.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling value-bag v1.0.0-alpha.8 [INFO] [stderr] Compiling blake3 v0.3.8 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling getrandom v0.2.6 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling scheduled-thread-pool v0.2.5 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] Compiling crypto-mac v0.11.1 [INFO] [stderr] Compiling block-buffer v0.9.0 [INFO] [stderr] Compiling crypto-mac v0.8.0 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling hmac v0.11.0 [INFO] [stderr] Compiling sha2 v0.9.9 [INFO] [stderr] Compiling ctor v0.1.22 [INFO] [stderr] Compiling r2d2 v0.8.9 [INFO] [stderr] Compiling bincode v1.3.3 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling async-session v3.0.0 [INFO] [stderr] Compiling async-session-r2d2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.29s [INFO] running `Command { std: "docker" "inspect" "bbde47edb0a945776ff21bb5355a963943711fabb3f424e82e4a811e66ed4da2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bbde47edb0a945776ff21bb5355a963943711fabb3f424e82e4a811e66ed4da2", kill_on_drop: false }` [INFO] [stdout] bbde47edb0a945776ff21bb5355a963943711fabb3f424e82e4a811e66ed4da2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0e70fc68e072b0e5123dd9b0b52d1fb87df42343da0acbacd902cee6a169dbac [INFO] running `Command { std: "docker" "start" "-a" "0e70fc68e072b0e5123dd9b0b52d1fb87df42343da0acbacd902cee6a169dbac", kill_on_drop: false }` [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling cache-padded v1.2.0 [INFO] [stderr] Compiling waker-fn v1.1.0 [INFO] [stderr] Compiling pin-project-lite v0.2.8 [INFO] [stderr] Compiling parking v2.0.0 [INFO] [stderr] Compiling futures-io v0.3.21 [INFO] [stderr] Compiling fastrand v1.7.0 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling slab v0.4.6 [INFO] [stderr] Compiling async-task v4.2.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling atomic-waker v1.0.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling async-mutex v1.4.0 [INFO] [stderr] Compiling socket2 v0.4.4 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Compiling polling v2.2.0 [INFO] [stderr] Compiling kv-log-macro v1.0.7 [INFO] [stderr] Compiling concurrent-queue v1.2.2 [INFO] [stderr] Compiling async-channel v1.6.1 [INFO] [stderr] Compiling futures-lite v1.12.0 [INFO] [stderr] Compiling blocking v1.2.0 [INFO] [stderr] Compiling async-executor v1.4.1 [INFO] [stderr] Compiling async-io v1.6.0 [INFO] [stderr] Compiling async-global-executor v2.0.4 [INFO] [stderr] Compiling async-std v1.11.0 [INFO] [stderr] Compiling async-session-r2d2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 5.79s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_session_r2d2-cbd3dba714b41c73) [INFO] running `Command { std: "docker" "inspect" "0e70fc68e072b0e5123dd9b0b52d1fb87df42343da0acbacd902cee6a169dbac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0e70fc68e072b0e5123dd9b0b52d1fb87df42343da0acbacd902cee6a169dbac", kill_on_drop: false }` [INFO] [stdout] 0e70fc68e072b0e5123dd9b0b52d1fb87df42343da0acbacd902cee6a169dbac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 796181bc22c1c476a290cf01ae950be6b4d2f138d4635d71fb07109ed762ef64 [INFO] running `Command { std: "docker" "start" "-a" "796181bc22c1c476a290cf01ae950be6b4d2f138d4635d71fb07109ed762ef64", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_session_r2d2-cbd3dba714b41c73) [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] Doc-tests async-session-r2d2 [INFO] [stderr] thread 'rustc' panicked at 'index out of bounds: the len is 0 but the index is 0', compiler/rustc_ast/src/util/comments.rs:55:28 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7fe30d3601dd - std::backtrace_rs::backtrace::libunwind::trace::ha359b7f0090e2792 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stderr] 1: 0x7fe30d3601dd - std::backtrace_rs::backtrace::trace_unsynchronized::h0584631f25c1d70e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7fe30d3601dd - std::sys_common::backtrace::_print_fmt::hdadffd97d279ff14 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stderr] 3: 0x7fe30d3601dd - ::fmt::h26f189e611080a74 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stderr] 4: 0x7fe30d3ba02c - core::fmt::write::hfb5d11dfe037e8b7 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/fmt/mod.rs:1194:17 [INFO] [stderr] 5: 0x7fe30d3517d1 - std::io::Write::write_fmt::ha30651f608022a46 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/io/mod.rs:1655:15 [INFO] [stderr] 6: 0x7fe30d3632c5 - std::sys_common::backtrace::_print::h7a0e44402913ba60 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stderr] 7: 0x7fe30d3632c5 - std::sys_common::backtrace::print::h9767dc455a84e728 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stderr] 8: 0x7fe30d3632c5 - std::panicking::default_hook::{{closure}}::h60afd6c8b12988ad [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:295:22 [INFO] [stderr] 9: 0x7fe30d362f79 - std::panicking::default_hook::ha7b9bac6813f9d21 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:314:9 [INFO] [stderr] 10: 0x7fe30dae0781 - rustc_driver[d0cb999f032f1a12]::DEFAULT_HOOK::{closure#0}::{closure#0} [INFO] [stderr] 11: 0x7fe30d363a10 - std::panicking::rust_panic_with_hook::h7b117a162a6f8664 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:702:17 [INFO] [stderr] 12: 0x7fe30d363847 - std::panicking::begin_panic_handler::{{closure}}::h346750923c608600 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:588:13 [INFO] [stderr] 13: 0x7fe30d360694 - std::sys_common::backtrace::__rust_end_short_backtrace::h768c56c6a0c055c0 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stderr] 14: 0x7fe30d363579 - rust_begin_unwind [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:584:5 [INFO] [stderr] 15: 0x7fe30d3276c3 - core::panicking::panic_fmt::h5c41cb2fa118fdbc [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panicking.rs:143:14 [INFO] [stderr] 16: 0x7fe30d327602 - core::panicking::panic_bounds_check::h9d07f4c185f11f52 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panicking.rs:84:5 [INFO] [stderr] 17: 0x7fe30ec902e1 - rustc_ast[b6ea2c37b24e87c]::util::comments::beautify_doc_string [INFO] [stderr] 18: 0x55e81fa17431 - <&mut ::from_ast::{closure#0} as core[64780a63ad7d29b4]::ops::function::FnMut<((&rustc_ast[b6ea2c37b24e87c]::ast::Attribute, core[64780a63ad7d29b4]::option::Option),)>>::call_mut [INFO] [stderr] 19: 0x55e81f9fffaa - , core[64780a63ad7d29b4]::iter::adapters::map::Map, ::from_ast::{closure#1}::{closure#0}>, ::from_ast::{closure#1}>, core[64780a63ad7d29b4]::iter::adapters::map::Map, ::from_ast::{closure#2}>> as core[64780a63ad7d29b4]::iter::traits::iterator::Iterator>::try_fold::<(), core[64780a63ad7d29b4]::iter::traits::iterator::Iterator::find_map::check<(&rustc_ast[b6ea2c37b24e87c]::ast::Attribute, core[64780a63ad7d29b4]::option::Option), rustc_ast[b6ea2c37b24e87c]::ast::Attribute, &mut ::from_ast::{closure#0}>::{closure#0}, core[64780a63ad7d29b4]::ops::control_flow::ControlFlow> [INFO] [stderr] 20: 0x55e81f9be3d3 - as alloc[73f0e8f80e4c3e47]::vec::spec_from_iter::SpecFromIter, core[64780a63ad7d29b4]::iter::adapters::map::Map, ::from_ast::{closure#1}::{closure#0}>, ::from_ast::{closure#1}>, core[64780a63ad7d29b4]::iter::adapters::map::Map, ::from_ast::{closure#2}>>, ::from_ast::{closure#0}>>>::from_iter [INFO] [stderr] 21: 0x55e81fa6c0cb - ::visit_testable:: [INFO] [stderr] 22: 0x55e81fb8a702 - ::enter:: [INFO] [stderr] 23: 0x55e81fab11ef - rustc_interface[a581cf23cd3c7055]::interface::create_compiler_and_run::, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>, rustdoc[9af0ba42a76dfc0e]::doctest::run::{closure#1}> [INFO] [stderr] 24: 0x55e81f913c40 - >::set::, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>, rustdoc[9af0ba42a76dfc0e]::doctest::run::{closure#1}>::{closure#0}, core[64780a63ad7d29b4]::result::Result<(alloc[73f0e8f80e4c3e47]::vec::Vec, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>> [INFO] [stderr] 25: 0x55e81fa5dbcc - std[b651bbff91fc1b1a]::sys_common::backtrace::__rust_begin_short_backtrace::, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>, rustdoc[9af0ba42a76dfc0e]::doctest::run::{closure#1}>::{closure#0}, core[64780a63ad7d29b4]::result::Result<(alloc[73f0e8f80e4c3e47]::vec::Vec, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>>::{closure#0}, core[64780a63ad7d29b4]::result::Result<(alloc[73f0e8f80e4c3e47]::vec::Vec, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>> [INFO] [stderr] 26: 0x55e81fb4ccc7 - <::spawn_unchecked_, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>, rustdoc[9af0ba42a76dfc0e]::doctest::run::{closure#1}>::{closure#0}, core[64780a63ad7d29b4]::result::Result<(alloc[73f0e8f80e4c3e47]::vec::Vec, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>>::{closure#0}, core[64780a63ad7d29b4]::result::Result<(alloc[73f0e8f80e4c3e47]::vec::Vec, alloc[73f0e8f80e4c3e47]::sync::Arc>>, usize), rustc_errors[900f67ab7763faa3]::ErrorGuaranteed>>::{closure#1} as core[64780a63ad7d29b4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 27: 0x7fe30d36dc03 - as core::ops::function::FnOnce>::call_once::hdba7f2afed0c35b3 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/alloc/src/boxed.rs:1861:9 [INFO] [stderr] 28: 0x7fe30d36dc03 - as core::ops::function::FnOnce>::call_once::h38b0832765bf7961 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/alloc/src/boxed.rs:1861:9 [INFO] [stderr] 29: 0x7fe30d36dc03 - std::sys::unix::thread::Thread::new::thread_start::h70236dc17753425e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stderr] 30: 0x7fe30d280609 - start_thread [INFO] [stderr] 31: 0x7fe30d029163 - clone [INFO] [stderr] 32: 0x0 - [INFO] [stderr] [INFO] [stderr] error: internal compiler error: unexpected panic [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md [INFO] [stderr] [INFO] [stderr] note: rustc 1.61.0-beta.2 (7c13df853 2022-04-09) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: --crate-type lib -C embed-bitcode=no [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] end of query stack [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "796181bc22c1c476a290cf01ae950be6b4d2f138d4635d71fb07109ed762ef64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "796181bc22c1c476a290cf01ae950be6b4d2f138d4635d71fb07109ed762ef64", kill_on_drop: false }` [INFO] [stdout] 796181bc22c1c476a290cf01ae950be6b4d2f138d4635d71fb07109ed762ef64