[INFO] cloning repository https://github.com/raphychek/Project-parallel-and-reactive-programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raphychek/Project-parallel-and-reactive-programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphychek%2FProject-parallel-and-reactive-programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphychek%2FProject-parallel-and-reactive-programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26112c485e2c8b9709cce43958ece8c42a70374a
[INFO] testing raphychek/Project-parallel-and-reactive-programming against 1.93.0 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphychek%2FProject-parallel-and-reactive-programming" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/raphychek/Project-parallel-and-reactive-programming
[INFO] finished tweaking git repo https://github.com/raphychek/Project-parallel-and-reactive-programming
[INFO] tweaked toml for git repo https://github.com/raphychek/Project-parallel-and-reactive-programming written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raphychek/Project-parallel-and-reactive-programming on toolchain 1.93.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/raphychek/Project-parallel-and-reactive-programming 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" "+1.93.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded nodrop v0.1.12
[INFO] [stderr]   Downloaded crossbeam-deque v0.5.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.5.0
[INFO] [stderr]   Downloaded cfg-if v0.1.5
[INFO] [stderr]   Downloaded arrayvec v0.4.7
[INFO] [stderr]   Downloaded crossbeam-channel v0.2.6
[INFO] [stderr]   Downloaded stable_deref_trait v1.1.1
[INFO] [stderr]   Downloaded lock_api v0.1.4
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.6.0
[INFO] [stderr]   Downloaded parking_lot v0.6.4
[INFO] [stderr]   Downloaded smallvec v0.6.5
[INFO] [stderr]   Downloaded crossbeam-epoch v0.5.2
[INFO] [stderr]   Downloaded owning_ref v0.3.3
[INFO] [stderr]   Downloaded rand_core v0.2.2
[INFO] [stderr]   Downloaded rand v0.5.5
[INFO] [stderr]   Downloaded crossbeam v0.4.1
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3eacddc737a698a41be3d64efe7e20cac3d37e18d0d8c43eba08c39c320bb48
[INFO] running `Command { std: "docker" "start" "-a" "c3eacddc737a698a41be3d64efe7e20cac3d37e18d0d8c43eba08c39c320bb48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3eacddc737a698a41be3d64efe7e20cac3d37e18d0d8c43eba08c39c320bb48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3eacddc737a698a41be3d64efe7e20cac3d37e18d0d8c43eba08c39c320bb48", kill_on_drop: false }`
[INFO] [stdout] c3eacddc737a698a41be3d64efe7e20cac3d37e18d0d8c43eba08c39c320bb48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b19f31b8e63c88eeddc89e544cbc2c61b63a25b4cb4629451d580127e5e2f80
[INFO] running `Command { std: "docker" "start" "-a" "6b19f31b8e63c88eeddc89e544cbc2c61b63a25b4cb4629451d580127e5e2f80", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling rrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parallel/single_use.rs:230:37
[INFO] [stdout]     |
[INFO] [stdout] 230 | ...                   let mut tour = Arc::new(Compteur::new(0));
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parallel/multiple_uses.rs:353:37
[INFO] [stdout]     |
[INFO] [stdout] 353 | ...                   let mut tour = Arc::new(Compteur::new(0));
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num_activators` is never read
[INFO] [stdout]    --> src/parallel/multiple_uses.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub struct RcBuilder<N> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 198 |     num_activators: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RcBuilder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "6b19f31b8e63c88eeddc89e544cbc2c61b63a25b4cb4629451d580127e5e2f80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b19f31b8e63c88eeddc89e544cbc2c61b63a25b4cb4629451d580127e5e2f80", kill_on_drop: false }`
[INFO] [stdout] 6b19f31b8e63c88eeddc89e544cbc2c61b63a25b4cb4629451d580127e5e2f80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7d9d68e64f2960f367ce50882c148f1f7c1de6a71ee1d4bef18f3dea60801a2
[INFO] running `Command { std: "docker" "start" "-a" "a7d9d68e64f2960f367ce50882c148f1f7c1de6a71ee1d4bef18f3dea60801a2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parallel/single_use.rs:230:37
[INFO] [stdout]     |
[INFO] [stdout] 230 | ...                   let mut tour = Arc::new(Compteur::new(0));
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parallel/multiple_uses.rs:353:37
[INFO] [stdout]     |
[INFO] [stdout] 353 | ...                   let mut tour = Arc::new(Compteur::new(0));
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num_activators` is never read
[INFO] [stdout]    --> src/parallel/multiple_uses.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub struct RcBuilder<N> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 198 |     num_activators: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RcBuilder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lib.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 };
[INFO] [stdout]    |                  ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:113:18
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 };
[INFO] [stdout]     |                  ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parallel/single_use.rs:230:37
[INFO] [stdout]     |
[INFO] [stdout] 230 | ...                   let mut tour = Arc::new(Compteur::new(0));
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parallel/multiple_uses.rs:353:37
[INFO] [stdout]     |
[INFO] [stdout] 353 | ...                   let mut tour = Arc::new(Compteur::new(0));
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num_activators` is never read
[INFO] [stdout]    --> src/parallel/multiple_uses.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub struct RcBuilder<N> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 198 |     num_activators: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RcBuilder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "a7d9d68e64f2960f367ce50882c148f1f7c1de6a71ee1d4bef18f3dea60801a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d9d68e64f2960f367ce50882c148f1f7c1de6a71ee1d4bef18f3dea60801a2", kill_on_drop: false }`
[INFO] [stdout] a7d9d68e64f2960f367ce50882c148f1f7c1de6a71ee1d4bef18f3dea60801a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10a995ca919e88989a43df0a641296ba08b4de00a66f4cfa170909c679b5c02f
[INFO] running `Command { std: "docker" "start" "-a" "10a995ca919e88989a43df0a641296ba08b4de00a66f4cfa170909c679b5c02f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parallel/single_use.rs:230:37
[INFO] [stderr]     |
[INFO] [stderr] 230 | ...                   let mut tour = Arc::new(Compteur::new(0));
[INFO] [stderr]     |                           ----^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parallel/multiple_uses.rs:353:37
[INFO] [stderr]     |
[INFO] [stderr] 353 | ...                   let mut tour = Arc::new(Compteur::new(0));
[INFO] [stderr]     |                           ----^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field `num_activators` is never read
[INFO] [stderr]    --> src/parallel/multiple_uses.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 195 | pub struct RcBuilder<N> {
[INFO] [stderr]     |            --------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 198 |     num_activators: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `RcBuilder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rrs` (lib) generated 3 warnings (run `cargo fix --lib -p rrs` to apply 2 suggestions)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lib.rs:87:18
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 };
[INFO] [stderr]    |                  ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:113:18
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 };
[INFO] [stderr]     |                  ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: `rrs` (lib test) generated 5 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rrs-11a7d200f3a74567)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr] 
[INFO] [stderr] thread '<unnamed>' (30) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayvec-0.4.7/src/lib.rs:249:25:
[INFO] [stderr] unsafe precondition(s) violated: slice::get_unchecked_mut requires that the index is within the slice
[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:     0x5c5fdd27c732 - std::backtrace_rs::backtrace::libunwind::trace::h90e89fac33585832
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x5c5fdd27c732 - std::backtrace_rs::backtrace::trace_unsynchronized::heebcf2380a8e7359
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x5c5fdd27c732 - std::sys::backtrace::_print_fmt::hdf3e2a22d2f810db
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:68:9
[INFO] [stderr]    3:     0x5c5fdd27c732 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hac1d885928ba8582
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:38:26
[INFO] [stderr]    4:     0x5c5fdd28c677 - core::fmt::rt::Argument::fmt::h6901eb7c19abebe8
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x5c5fdd28c677 - core::fmt::write::h83ebb4d32483be9e
[INFO] [stderr]    6:     0x5c5fdd24b4f6 - std::io::default_write_fmt::hdea1c6df292e9097
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x5c5fdd24b4f6 - std::io::Write::write_fmt::ha6a1d6c1ea64b2d0
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]    8:     0x5c5fdd25ba49 - std::sys::backtrace::BacktraceLock::print::hcc2e1a3ac996c911
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:41:9
[INFO] [stderr]    9:     0x5c5fdd25ba49 - std::panicking::default_hook::{{closure}}::h8e9c4d1276f0925f
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x5c5fdd25b8a9 - std::panicking::default_hook::h2b2078d38b534dfb
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x5c5fdd212a9e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39d051e7dedac6a7
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   12:     0x5c5fdd212a9e - test::test_main_with_exit_callback::{{closure}}::h4b005fe75814c302
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x5c5fdd25bcc2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd426070722c13cbf
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   14:     0x5c5fdd25bcc2 - std::panicking::panic_with_hook::h39b739724e701bfd
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:833:13
[INFO] [stderr]   15:     0x5c5fdd25bb3a - std::panicking::panic_handler::{{closure}}::he540c4833054e458
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:691:13
[INFO] [stderr]   16:     0x5c5fdd257089 - std::sys::backtrace::__rust_end_short_backtrace::hfa179d89deec8aed
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:176:18
[INFO] [stderr]   17:     0x5c5fdd24019d - __rustc[d131491b17107b07]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:689:5
[INFO] [stderr]   18:     0x5c5fdd293aed - core::panicking::panic_nounwind_fmt::runtime::hdd17ae2c2a7f85df
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x5c5fdd293aed - core::panicking::panic_nounwind_fmt::h2987a0c8ccb716e5
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/intrinsics/mod.rs:2449:9
[INFO] [stderr]   20:     0x5c5fdd23c264 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::precondition_check::h5fb2b905d086e286
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ub_checks.rs:73:21
[INFO] [stderr]   21:     0x5c5fdd23c209 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::h33ea960ccde82216
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ub_checks.rs:78:17
[INFO] [stderr]   22:     0x5c5fdd237bd9 - core::slice::<impl [T]>::get_unchecked_mut::h3b0995116492adf3
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/slice/mod.rs:690:30
[INFO] [stderr]   23:     0x5c5fdd2389d1 - arrayvec::ArrayVec<A>::push_unchecked::ha012f07becfc8c70
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayvec-0.4.7/src/lib.rs:249:25
[INFO] [stderr]   24:     0x5c5fdd2390a8 - arrayvec::ArrayVec<A>::try_push::h46a1f79ee2899a2a
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayvec-0.4.7/src/lib.rs:215:22
[INFO] [stderr]   25:     0x5c5fdd236085 - crossbeam_epoch::internal::Bag::try_push::ha62a280f6c8933c9
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/internal.rs:93:24
[INFO] [stderr]   26:     0x5c5fdd2364d5 - crossbeam_epoch::internal::Local::defer::hc8761dc5b74aa137
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/internal.rs:323:32
[INFO] [stderr]   27:     0x5c5fdd239663 - crossbeam_epoch::guard::Guard::defer::he019df56a6f6fe72
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/guard.rs:176:19
[INFO] [stderr]   28:     0x5c5fdd232c52 - <crossbeam_epoch::sync::list::Iter<T,C> as core::iter::traits::iterator::Iterator>::next::h1ae058ced79ab03e
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/sync/list.rs:260:40
[INFO] [stderr]   29:     0x5c5fdd236dd6 - crossbeam_epoch::internal::Global::try_advance::hd495ca488f6fd426
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/internal.rs:211:22
[INFO] [stderr]   30:     0x5c5fdd237095 - crossbeam_epoch::internal::Global::collect::he211c45ee46be4f2
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/internal.rs:175:33
[INFO] [stderr]   31:     0x5c5fdd1d704d - crossbeam_epoch::internal::Local::pin::h18279424874322da
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/internal.rs:379:31
[INFO] [stderr]   32:     0x5c5fdd1f0802 - crossbeam_epoch::collector::Handle::pin::h7a3ba6a6b731e25f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/collector.rs:72:32
[INFO] [stderr]   33:     0x5c5fdd1d56ce - crossbeam_epoch::default::pin::{{closure}}::hc66ceccbf8a59019
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/default.rs:25:33
[INFO] [stderr]   34:     0x5c5fdd1eab60 - std::thread::local::LocalKey<T>::try_with::hcda8a4bb3a398eea
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/local.rs:513:12
[INFO] [stderr]   35:     0x5c5fdd1ea9ce - std::thread::local::LocalKey<T>::with::h2f76267ce645b01e
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/local.rs:477:20
[INFO] [stderr]   36:     0x5c5fdd1d56bd - crossbeam_epoch::default::pin::hc7f5453746e9345d
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.5.2/src/default.rs:25:12
[INFO] [stderr]   37:     0x5c5fdd1d4af3 - crossbeam_deque::fifo::Stealer<T>::steal::h4fbbb123bc9b6f29
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-deque-0.5.2/src/fifo.rs:364:26
[INFO] [stderr]   38:     0x5c5fdd1da289 - crossbeam_deque::Stealer<T>::steal::h3d8db922068d7eb6
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-deque-0.5.2/src/lib.rs:264:55
[INFO] [stderr]   39:     0x5c5fdd1ea66b - rrs::parallel::multiple_uses::Toexec::execute::{{closure}}::{{closure}}::h50c851b43eb9ec31
[INFO] [stderr]                                at /opt/rustwide/workdir/src/parallel/multiple_uses.rs:355:67
[INFO] [stderr]   40:     0x5c5fdd1db64e - crossbeam_utils::thread::ScopedThreadBuilder::spawn::{{closure}}::h27c732316d47e0af
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-utils-0.5.0/src/thread.rs:340:45
[INFO] [stderr]   41:     0x5c5fdd1dd8e1 - <F as crossbeam_utils::thread::FnBox<T>>::call_box::hc68ead7fe6053fe8
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-utils-0.5.0/src/thread.rs:127:9
[INFO] [stderr]   42:     0x5c5fdd1dc011 - crossbeam_utils::thread::builder_spawn_unchecked::{{closure}}::h4727c60a181902ff
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-utils-0.5.0/src/thread.rs:150:35
[INFO] [stderr]   43:     0x5c5fdd1cc373 - std::sys::backtrace::__rust_begin_short_backtrace::h5ad5b9cb87d75bb4
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:160:18
[INFO] [stderr]   44:     0x5c5fdd1e220b - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h944bb70fb70bd5a9
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:92:13
[INFO] [stderr]   45:     0x5c5fdd1d2760 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::ha253489b70669747
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   46:     0x5c5fdd1d7746 - std::panicking::catch_unwind::do_call::hdf6639c0af27483a
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stderr]   47:     0x5c5fdd1e462b - __rust_try
[INFO] [stderr]   48:     0x5c5fdd1e1cdc - std::panicking::catch_unwind::h1c55c02658e2d114
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stderr]   49:     0x5c5fdd1e1cdc - std::panic::catch_unwind::h34d6b5350a150e38
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stderr]   50:     0x5c5fdd1e1cdc - std::thread::lifecycle::spawn_unchecked::{{closure}}::h910166cb5e0e8705
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:90:26
[INFO] [stderr]   51:     0x5c5fdd1cc3be - core::ops::function::FnOnce::call_once{{vtable.shim}}::h3278a88432a3721b
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   52:     0x5c5fdd25270f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h22a27d165e4e871d
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2206:9
[INFO] [stderr]   53:     0x5c5fdd25270f - std::sys::thread::unix::Thread::new::thread_start::h45cc87bb053add0f
[INFO] [stderr]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stderr]   54:     0x7fbd1bca5aa4 - <unknown>
[INFO] [stderr]   55:     0x7fbd1bd32a64 - clone
[INFO] [stderr]   56:                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/rrs-11a7d200f3a74567` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "10a995ca919e88989a43df0a641296ba08b4de00a66f4cfa170909c679b5c02f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a995ca919e88989a43df0a641296ba08b4de00a66f4cfa170909c679b5c02f", kill_on_drop: false }`
[INFO] [stdout] 10a995ca919e88989a43df0a641296ba08b4de00a66f4cfa170909c679b5c02f
