[INFO] fetching crate meiosis 0.1.0...
[INFO] testing meiosis-0.1.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate meiosis 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate meiosis 0.1.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate meiosis 0.1.0
[INFO] finished tweaking crates.io crate meiosis 0.1.0
[INFO] tweaked toml for crates.io crate meiosis 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate meiosis 0.1.0 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" "+1.69.0" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b096eb6f000e267a2ba70f85d72928598e106b041d533fab07313970122dc7fd
[INFO] running `Command { std: "docker" "start" "-a" "b096eb6f000e267a2ba70f85d72928598e106b041d533fab07313970122dc7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b096eb6f000e267a2ba70f85d72928598e106b041d533fab07313970122dc7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b096eb6f000e267a2ba70f85d72928598e106b041d533fab07313970122dc7fd", kill_on_drop: false }`
[INFO] [stdout] b096eb6f000e267a2ba70f85d72928598e106b041d533fab07313970122dc7fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 938a45a4338fb8c35cadd736fc135c9e6a00bb2c4111b43bca242d937e2b390a
[INFO] running `Command { std: "docker" "start" "-a" "938a45a4338fb8c35cadd736fc135c9e6a00bb2c4111b43bca242d937e2b390a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling meiosis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unconstrained generic constant
[INFO] [stdout]   --> src/operators/recombination/single_point.rs:30:30
[INFO] [stdout]    |
[INFO] [stdout] 30 |         parents: [Vec<GENE>; <Self as Recombination<Vec<GENE>>>::PARENTS],
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: try adding a `where` bound using this expression: `where [(); <Self as Recombination<Vec<GENE>>>::PARENTS]:`
[INFO] [stdout] note: required by a bound in `<SinglePoint as Recombination<Vec<GENE>>>::crossover`
[INFO] [stdout]   --> src/operators/recombination/single_point.rs:30:30
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn crossover<R>(
[INFO] [stdout]    |        --------- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 30 |         parents: [Vec<GENE>; <Self as Recombination<Vec<GENE>>>::PARENTS],
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `<SinglePoint as Recombination<Vec<GENE>>>::crossover`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unconstrained generic constant
[INFO] [stdout]   --> src/operators/recombination/single_point.rs:30:30
[INFO] [stdout]    |
[INFO] [stdout] 30 |         parents: [Vec<GENE>; <Self as Recombination<Vec<GENE>>>::PARENTS],
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: try adding a `where` bound using this expression: `where [(); <Self as Recombination<Vec<GENE>>>::OFFSPRING]:`
[INFO] [stdout] note: required by a bound in `<SinglePoint as Recombination<Vec<GENE>>>::crossover`
[INFO] [stdout]   --> src/operators/recombination/single_point.rs:31:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn crossover<R>(
[INFO] [stdout]    |        --------- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 31 |     ) -> [Vec<GENE>; <Self as Recombination<Vec<GENE>>>::OFFSPRING]
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `<SinglePoint as Recombination<Vec<GENE>>>::crossover`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unconstrained generic constant
[INFO] [stdout]    --> src/operators/recombination/single_point.rs:102:34
[INFO] [stdout]     |
[INFO] [stdout] 102 |         parents: [[GENE; GENES]; <Self as Recombination<[GENE; GENES]>>::PARENTS],
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try adding a `where` bound using this expression: `where [(); <Self as Recombination<[GENE; GENES]>>::PARENTS]:`
[INFO] [stdout] note: required by a bound in `<SinglePoint as Recombination<[GENE; GENES]>>::crossover`
[INFO] [stdout]    --> src/operators/recombination/single_point.rs:102:34
[INFO] [stdout]     |
[INFO] [stdout] 99  |     fn crossover<R>(
[INFO] [stdout]     |        --------- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 102 |         parents: [[GENE; GENES]; <Self as Recombination<[GENE; GENES]>>::PARENTS],
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `<SinglePoint as Recombination<[GENE; GENES]>>::crossover`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unconstrained generic constant
[INFO] [stdout]    --> src/operators/recombination/single_point.rs:102:34
[INFO] [stdout]     |
[INFO] [stdout] 102 |         parents: [[GENE; GENES]; <Self as Recombination<[GENE; GENES]>>::PARENTS],
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try adding a `where` bound using this expression: `where [(); <Self as Recombination<[GENE; GENES]>>::OFFSPRING]:`
[INFO] [stdout] note: required by a bound in `<SinglePoint as Recombination<[GENE; GENES]>>::crossover`
[INFO] [stdout]    --> src/operators/recombination/single_point.rs:103:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |     fn crossover<R>(
[INFO] [stdout]     |        --------- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 103 |     ) -> [[GENE; GENES]; <Self as Recombination<[GENE; GENES]>>::OFFSPRING]
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `<SinglePoint as Recombination<[GENE; GENES]>>::crossover`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `meiosis` due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "938a45a4338fb8c35cadd736fc135c9e6a00bb2c4111b43bca242d937e2b390a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "938a45a4338fb8c35cadd736fc135c9e6a00bb2c4111b43bca242d937e2b390a", kill_on_drop: false }`
[INFO] [stdout] 938a45a4338fb8c35cadd736fc135c9e6a00bb2c4111b43bca242d937e2b390a
