[INFO] updating cached repository nenofite/gene-code
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nenofite/gene-code
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nenofite/gene-code" "work/ex/beta-1.38-1/sources/1.37.0/gh/nenofite/gene-code"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nenofite/gene-code'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nenofite/gene-code" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nenofite/gene-code"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nenofite/gene-code'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 649ddc28448d9480a7012744b7720d7564823ddf
[INFO] sha for GitHub repo nenofite/gene-code: 649ddc28448d9480a7012744b7720d7564823ddf
[INFO] validating manifest of nenofite/gene-code on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nenofite/gene-code on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nenofite/gene-code
[INFO] finished frobbing nenofite/gene-code
[INFO] frobbed toml for nenofite/gene-code written to work/ex/beta-1.38-1/sources/1.37.0/gh/nenofite/gene-code/Cargo.toml
[INFO] started frobbing nenofite/gene-code
[INFO] finished frobbing nenofite/gene-code
[INFO] frobbed toml for nenofite/gene-code written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nenofite/gene-code/Cargo.toml
[INFO] crate nenofite/gene-code already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nenofite/gene-code against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nenofite/gene-code:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d9d09ee73cfffd3414fc98af3789361ff4be67e417ea08e0c754b3a41ec1c413
[INFO] running `"docker" "start" "-a" "d9d09ee73cfffd3414fc98af3789361ff4be67e417ea08e0c754b3a41ec1c413"`
[INFO] [stderr]    Compiling gene_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Hasher`
[INFO] [stderr]  --> src/gene.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                       ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/gene.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run_all`
[INFO] [stderr]    --> src/lang.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn run_all(&mut self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "d9d09ee73cfffd3414fc98af3789361ff4be67e417ea08e0c754b3a41ec1c413"`
[INFO] running `"docker" "rm" "-f" "d9d09ee73cfffd3414fc98af3789361ff4be67e417ea08e0c754b3a41ec1c413"`
[INFO] [stdout] d9d09ee73cfffd3414fc98af3789361ff4be67e417ea08e0c754b3a41ec1c413
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nenofite/gene-code:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] da7a8d3c6320fee538035ead8bb6d30a2479d16ede3f12dc7d81d887bc1baff5
[INFO] running `"docker" "start" "-a" "da7a8d3c6320fee538035ead8bb6d30a2479d16ede3f12dc7d81d887bc1baff5"`
[INFO] [stderr]    Compiling gene_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/gene.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Hasher`
[INFO] [stderr]  --> src/gene.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "da7a8d3c6320fee538035ead8bb6d30a2479d16ede3f12dc7d81d887bc1baff5"`
[INFO] running `"docker" "rm" "-f" "da7a8d3c6320fee538035ead8bb6d30a2479d16ede3f12dc7d81d887bc1baff5"`
[INFO] [stdout] da7a8d3c6320fee538035ead8bb6d30a2479d16ede3f12dc7d81d887bc1baff5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nenofite/gene-code:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] e35e4ea5a01f35cda299f0573032a0e68719466f4bc1d5760e716566c1d66d93
[INFO] running `"docker" "start" "-a" "e35e4ea5a01f35cda299f0573032a0e68719466f4bc1d5760e716566c1d66d93"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gene_code-e8b96bdb4bcedf72
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test lang::tests::use_commands ... ok
[INFO] [stdout] test lang::tests::use_stack ... ok
[INFO] [stdout] test prog_gene::tests::display_gene ... ok
[INFO] [stdout] test gene::tests::gen_pool ... ok
[INFO] [stdout] test prog_gene::tests::test_fitness ... ok
[INFO] [stdout] test prog_gene::tests::generate_and_mutate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e35e4ea5a01f35cda299f0573032a0e68719466f4bc1d5760e716566c1d66d93"`
[INFO] running `"docker" "rm" "-f" "e35e4ea5a01f35cda299f0573032a0e68719466f4bc1d5760e716566c1d66d93"`
[INFO] [stdout] e35e4ea5a01f35cda299f0573032a0e68719466f4bc1d5760e716566c1d66d93