[INFO] cloning repository https://github.com/JKurland/lang3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JKurland/lang3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKurland%2Flang3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKurland%2Flang3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b857c3c11482a4299881a7a05dc3074823a3220d
[INFO] testing JKurland/lang3 against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKurland%2Flang3" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JKurland/lang3
[INFO] finished tweaking git repo https://github.com/JKurland/lang3
[INFO] tweaked toml for git repo https://github.com/JKurland/lang3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JKurland/lang3 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] crate git repo https://github.com/JKurland/lang3 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memoffset v0.6.1
[INFO] [stderr]   Downloaded make-cmd v0.1.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.1
[INFO] [stderr]   Downloaded quote v1.0.8
[INFO] [stderr]   Downloaded chashmap v2.2.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.1
[INFO] [stderr]   Downloaded parking_lot_core v0.2.14
[INFO] [stderr]   Downloaded parking_lot v0.4.8
[INFO] [stderr]   Downloaded syn v1.0.56
[INFO] [stderr]   Downloaded libffi-sys v1.1.0
[INFO] [stderr]   Downloaded libffi v1.0.0
[INFO] [stderr]   Downloaded owning_ref v0.3.3
[INFO] [stderr]   Downloaded csv v1.1.5
[INFO] [stderr]   Downloaded abort_on_panic v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e19b2ad1107b789262f856404fa63903630349d3d6bcdef4997869a1c4eaa5f0
[INFO] running `Command { std: "docker" "start" "-a" "e19b2ad1107b789262f856404fa63903630349d3d6bcdef4997869a1c4eaa5f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e19b2ad1107b789262f856404fa63903630349d3d6bcdef4997869a1c4eaa5f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e19b2ad1107b789262f856404fa63903630349d3d6bcdef4997869a1c4eaa5f0", kill_on_drop: false }`
[INFO] [stdout] e19b2ad1107b789262f856404fa63903630349d3d6bcdef4997869a1c4eaa5f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d1a3191083741c18b792bf24403a0064d2bc98fc72fb21f058cafa667cee5429
[INFO] running `Command { std: "docker" "start" "-a" "d1a3191083741c18b792bf24403a0064d2bc98fc72fb21f058cafa667cee5429", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling make-cmd v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling libffi-sys v1.1.0
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling abort_on_panic v2.0.0
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling chashmap v2.2.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling libffi v1.0.0
[INFO] [stderr]    Compiling lang3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/function.rs:131:35
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn itemise_function(token_stream: &[Token]) -> Result<Vec<FunctionItem>> {
[INFO] [stdout]     |                                   ^^^^^^^^                ------------ the same lifetime is hidden here
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn itemise_function(token_stream: &[Token]) -> Result<Vec<FunctionItem<'_>>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/main.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let f = unsafe {lib.get::<unsafe extern fn()>(b"f")?};
[INFO] [stdout]   |                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.02s
[INFO] running `Command { std: "docker" "inspect" "d1a3191083741c18b792bf24403a0064d2bc98fc72fb21f058cafa667cee5429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1a3191083741c18b792bf24403a0064d2bc98fc72fb21f058cafa667cee5429", kill_on_drop: false }`
[INFO] [stdout] d1a3191083741c18b792bf24403a0064d2bc98fc72fb21f058cafa667cee5429
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cc5db93263521e3a01b94e96d847155d59ad1a3d3fcb53920ac217a97cd7381c
[INFO] running `Command { std: "docker" "start" "-a" "cc5db93263521e3a01b94e96d847155d59ad1a3d3fcb53920ac217a97cd7381c", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/function.rs:131:35
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn itemise_function(token_stream: &[Token]) -> Result<Vec<FunctionItem>> {
[INFO] [stdout]     |                                   ^^^^^^^^                ------------ the same lifetime is hidden here
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn itemise_function(token_stream: &[Token]) -> Result<Vec<FunctionItem<'_>>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling lang3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/main.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let f = unsafe {lib.get::<unsafe extern fn()>(b"f")?};
[INFO] [stdout]   |                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/function.rs:131:35
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn itemise_function(token_stream: &[Token]) -> Result<Vec<FunctionItem>> {
[INFO] [stdout]     |                                   ^^^^^^^^                ------------ the same lifetime is hidden here
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn itemise_function(token_stream: &[Token]) -> Result<Vec<FunctionItem<'_>>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 40.60s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "cc5db93263521e3a01b94e96d847155d59ad1a3d3fcb53920ac217a97cd7381c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc5db93263521e3a01b94e96d847155d59ad1a3d3fcb53920ac217a97cd7381c", kill_on_drop: false }`
[INFO] [stdout] cc5db93263521e3a01b94e96d847155d59ad1a3d3fcb53920ac217a97cd7381c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 905cbb61b9f948cb2853de5200ef9fb3defa80bf6606bbacd1579d8743c8dcd7
[INFO] running `Command { std: "docker" "start" "-a" "905cbb61b9f948cb2853de5200ef9fb3defa80bf6606bbacd1579d8743c8dcd7", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/function.rs:131:35
[INFO] [stderr]     |
[INFO] [stderr] 131 | fn itemise_function(token_stream: &[Token]) -> Result<Vec<FunctionItem>> {
[INFO] [stderr]     |                                   ^^^^^^^^                ------------ the same lifetime is hidden here
[INFO] [stderr]     |                                   |
[INFO] [stderr]     |                                   the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 131 | fn itemise_function(token_stream: &[Token]) -> Result<Vec<FunctionItem<'_>>> {
[INFO] [stderr]     |                                                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `lang3` (lib) generated 1 warning
[INFO] [stderr] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stderr]  --> src/main.rs:6:38
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let f = unsafe {lib.get::<unsafe extern fn()>(b"f")?};
[INFO] [stderr]   |                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `lang3` (bin "lang3" test) generated 1 warning (run `cargo fix --bin "lang3" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `lang3` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lang3-ae5f5faa81846a36)
[INFO] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test itemise::test::test_items ... ok
[INFO] [stdout] test lex::test::test_lex_keyword ... ok
[INFO] [stdout] test lex::test::test_lex_source_ref ... ok
[INFO] [stdout] test lex::test::test_lex_mixed ... ok
[INFO] [stdout] test structs::tests::test_parse_struct ... ok
[INFO] [stdout] test tests::end_to_end5 ... ok
[INFO] [stdout] test tests::end_to_end3 ... ok
[INFO] [stdout] test tests::end_to_end01 ... ok
[INFO] [stdout] test tests::end_to_end2 ... ok
[INFO] [stdout] test tests::end_to_end10 ... ok
[INFO] [stdout] test structs::tests::test_parse_empty_struct ... ok
[INFO] [stdout] test lex::test::test_lex_ident ... ok
[INFO] [stdout] test tests::end_to_end6 ... ok
[INFO] [stdout] test tests::end_to_end4 ... ok
[INFO] [stdout] test tests::end_to_end8 ... ok
[INFO] [stdout] test tests::test_2_fn_args ... ok
[INFO] [stdout] test tests::end_to_end7 ... ok
[INFO] [stdout] test tests::end_to_end9 ... ok
[INFO] [stdout] test tests::test_bad_return_type_error ... ok
[INFO] [stdout] test tests::test_1_fn_arg ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'tests::test_nested_struct_assignment' panicked at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ptr/mod.rs:527:5:
[INFO] [stderr] unsafe precondition(s) violated: ptr::copy_nonoverlapping requires that both pointer arguments are aligned and non-null and the specified memory ranges do not overlap
[INFO] [stderr] 
[INFO] [stderr] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x6378697e27c2 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x6378697e27c2 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x6378697e27c2 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]    3:     0x6378697e27c2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]    4:     0x637869808043 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]    5:     0x637869808043 - core::fmt::write::h8a494366950f23bb
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]    6:     0x6378697df6e3 - std::io::default_write_fmt::ha27fbccbc65eb6fa
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x6378697df6e3 - std::io::Write::write_fmt::h6556609fca33d0b1
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]    8:     0x6378697e2612 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]    9:     0x6378697e3d49 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stderr]   10:     0x6378697e3b2b - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:327:9
[INFO] [stderr]   11:     0x637869767664 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb6bd65493727d71a
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stderr]   12:     0x637869767664 - test::test_main_with_exit_callback::{{closure}}::h60217ec76a0ece4a
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x6378697e481e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h318e4efb8c1a5689
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stderr]   14:     0x6378697e481e - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:841:13
[INFO] [stderr]   15:     0x6378697e44b6 - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:699:13
[INFO] [stderr]   16:     0x6378697e2cc9 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]   17:     0x6378697e417d - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stderr]   18:     0x6378698067fd - core::panicking::panic_nounwind_fmt::runtime::hde3dd742c40069fa
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:117:22
[INFO] [stderr]   19:     0x6378698067fd - core::panicking::panic_nounwind_fmt::h6c46f1098922b4b6
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/intrinsics/mod.rs:2367:9
[INFO] [stderr]   20:     0x637869712133 - core::ptr::copy_nonoverlapping::precondition_check::h36faece5f50186fb
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ub_checks.rs:72:21
[INFO] [stderr]   21:     0x63786971a3c7 - core::ptr::copy_nonoverlapping::h17df0eeda650cbc7
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ub_checks.rs:77:17
[INFO] [stderr]   22:     0x63786971a3c7 - core::ptr::const_ptr::<impl *const T>::copy_to_nonoverlapping::h50cff63434b19e82
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ptr/const_ptr.rs:1304:18
[INFO] [stderr]   23:     0x6378696d7b48 - lang3::vm::Vm::run::hca14f7dd8018eb8e
[INFO] [stderr]                                at /opt/rustwide/workdir/src/vm.rs:447:81
[INFO] [stderr]   24:     0x63786972b298 - lang3::tests::run_main::hada91e327df1ad7a
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:614:15
[INFO] [stderr]   25:     0x63786972dbd2 - lang3::tests::test_nested_struct_assignment::h0b2ee36e05f6a859
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:923:20
[INFO] [stderr]   26:     0x63786972db97 - lang3::tests::test_nested_struct_assignment::{{closure}}::h457f34209db613a9
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:922:39
[INFO] [stderr]   27:     0x6378696a2f56 - core::ops::function::FnOnce::call_once::hd014ff22029bd8a8
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   28:     0x63786976cecb - core::ops::function::FnOnce::call_once::h1f9474f1347fff52
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   29:     0x63786976cecb - test::__rust_begin_short_backtrace::ha52ab26e77157f03
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:648:18
[INFO] [stderr]   30:     0x63786976c005 - test::run_test_in_process::{{closure}}::h229c1a11a50b261f
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:74
[INFO] [stderr]   31:     0x63786976c005 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h78821afbf97b39a9
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   32:     0x63786976c005 - std::panicking::catch_unwind::do_call::h53abf3ed5bd32ba3
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stderr]   33:     0x63786976c005 - std::panicking::catch_unwind::h6deb5fe1e91873c9
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stderr]   34:     0x63786976c005 - std::panic::catch_unwind::hea0829b6b565654b
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stderr]   35:     0x63786976c005 - test::run_test_in_process::hdc44dfecea3db21b
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:27
[INFO] [stderr]   36:     0x63786976c005 - test::run_test::{{closure}}::h0364ba59bf23f652
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:592:43
[INFO] [stderr]   37:     0x63786972fc04 - test::run_test::{{closure}}::h32730b304eec05da
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:622:41
[INFO] [stderr]   38:     0x63786972fc04 - std::sys::backtrace::__rust_begin_short_backtrace::h177cb952fc54ad2c
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:158:18
[INFO] [stderr]   39:     0x6378697335da - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h119d903520007597
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:559:17
[INFO] [stderr]   40:     0x6378697335da - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hab88401d606702a6
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   41:     0x6378697335da - std::panicking::catch_unwind::do_call::h163fe12cca9901c2
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stderr]   42:     0x6378697335da - std::panicking::catch_unwind::he81557d0e17cc1bc
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stderr]   43:     0x6378697335da - std::panic::catch_unwind::hc2b8e79c20593955
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stderr]   44:     0x6378697335da - std::thread::Builder::spawn_unchecked_::{{closure}}::hfa6b4978e07815cc
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:557:30
[INFO] [stderr]   45:     0x6378697335da - core::ops::function::FnOnce::call_once{{vtable.shim}}::hddcd7484a13fd793
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   46:     0x6378697e779f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5924238c754de3b8
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1971:9
[INFO] [stderr]   47:     0x6378697e779f - std::sys::pal::unix::thread::Thread::new::thread_start::hb6e99e73da4d28f8
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stderr]   48:     0x77347ce75aa4 - <unknown>
[INFO] [stderr]   49:     0x77347cf02a34 - clone
[INFO] [stderr]   50:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/lang3-ae5f5faa81846a36` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "905cbb61b9f948cb2853de5200ef9fb3defa80bf6606bbacd1579d8743c8dcd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "905cbb61b9f948cb2853de5200ef9fb3defa80bf6606bbacd1579d8743c8dcd7", kill_on_drop: false }`
[INFO] [stdout] 905cbb61b9f948cb2853de5200ef9fb3defa80bf6606bbacd1579d8743c8dcd7
