[INFO] fetching crate genx 0.4.0...
[INFO] testing genx-0.4.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate genx 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate genx 0.4.0
[INFO] finished tweaking crates.io crate genx 0.4.0
[INFO] tweaked toml for crates.io crate genx 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate genx 0.4.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate genx 0.4.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.15
[INFO] [stderr]   Downloaded itertools v0.10.1
[INFO] [stderr]   Downloaded libc v0.2.106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32dbae8fe0b072bcff5d78f180aff2cb86d23531cb55ee3ec1a4dbd174e05c68
[INFO] running `Command { std: "docker" "start" "-a" "32dbae8fe0b072bcff5d78f180aff2cb86d23531cb55ee3ec1a4dbd174e05c68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32dbae8fe0b072bcff5d78f180aff2cb86d23531cb55ee3ec1a4dbd174e05c68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32dbae8fe0b072bcff5d78f180aff2cb86d23531cb55ee3ec1a4dbd174e05c68", kill_on_drop: false }`
[INFO] [stdout] 32dbae8fe0b072bcff5d78f180aff2cb86d23531cb55ee3ec1a4dbd174e05c68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b880a1e88c61465a79aa7f68e8221bd534b2e319f3ef9a68e128b11230d78789
[INFO] running `Command { std: "docker" "start" "-a" "b880a1e88c61465a79aa7f68e8221bd534b2e319f3ef9a68e128b11230d78789", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling genx v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `random_offset` is never read
[INFO] [stdout]   --> src/selection/stochastic_universal.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         random_offset += fitness_step;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "b880a1e88c61465a79aa7f68e8221bd534b2e319f3ef9a68e128b11230d78789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b880a1e88c61465a79aa7f68e8221bd534b2e319f3ef9a68e128b11230d78789", kill_on_drop: false }`
[INFO] [stdout] b880a1e88c61465a79aa7f68e8221bd534b2e319f3ef9a68e128b11230d78789
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07f811cad14caa4e0010b26b41af93432baf54c7e2f0f10ea26395a026f23c3e
[INFO] running `Command { std: "docker" "start" "-a" "07f811cad14caa4e0010b26b41af93432baf54c7e2f0f10ea26395a026f23c3e", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `random_offset` is never read
[INFO] [stdout]   --> src/selection/stochastic_universal.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         random_offset += fitness_step;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling genx v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `random_offset` is never read
[INFO] [stdout]   --> src/selection/stochastic_universal.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         random_offset += fitness_step;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "07f811cad14caa4e0010b26b41af93432baf54c7e2f0f10ea26395a026f23c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f811cad14caa4e0010b26b41af93432baf54c7e2f0f10ea26395a026f23c3e", kill_on_drop: false }`
[INFO] [stdout] 07f811cad14caa4e0010b26b41af93432baf54c7e2f0f10ea26395a026f23c3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82603969e2f4f4efc81248dd205accec1f44fb2b67ea6ed453acc34e9f761960
[INFO] running `Command { std: "docker" "start" "-a" "82603969e2f4f4efc81248dd205accec1f44fb2b67ea6ed453acc34e9f761960", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `random_offset` is never read
[INFO] [stderr]   --> src/selection/stochastic_universal.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         random_offset += fitness_step;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `genx` (lib) generated 1 warning
[INFO] [stderr] warning: `genx` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/genx-52144c35d53bcd25)
[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 genx
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/mutation/inversion.rs - mutation::inversion::inversion_mutation (line 13) ... ok
[INFO] [stdout] test src/lib.rs - (line 78) ... ok
[INFO] [stdout] test src/mutation/scramble.rs - mutation::scramble::scramble_mutation (line 13) ... ok
[INFO] [stdout] test src/mutation/flipping.rs - mutation::flipping::flipping_mutation (line 14) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - (line 37) ... ok
[INFO] [stdout] test src/mutation/random.rs - mutation::random::random_mutation (line 16) ... ok
[INFO] [stdout] test src/mutation/polynomial.rs - mutation::polynomial::polynomial_mutation (line 17) ... ok
[INFO] [stdout] test src/selection/rank.rs - selection::rank::rank_selection (line 19) ... ok
[INFO] [stdout] test src/selection/steady_state.rs - selection::steady_state::steady_state_selection (line 13) ... ok
[INFO] [stdout] test src/selection/random.rs - selection::random::random_selection (line 17) ... ok
[INFO] [stdout] test src/selection/roulette_wheel.rs - selection::roulette_wheel::roulette_wheel_selection (line 18) ... ok
[INFO] [stdout] test src/mutation/swap.rs - mutation::swap::swap_mutation (line 10) ... ok
[INFO] [stdout] test src/selection/stochastic_universal.rs - selection::stochastic_universal::stochastic_universal_selection (line 18) ... ok
[INFO] [stdout] test src/selection/tournament.rs - selection::tournament::tournament_selection (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82603969e2f4f4efc81248dd205accec1f44fb2b67ea6ed453acc34e9f761960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82603969e2f4f4efc81248dd205accec1f44fb2b67ea6ed453acc34e9f761960", kill_on_drop: false }`
[INFO] [stdout] 82603969e2f4f4efc81248dd205accec1f44fb2b67ea6ed453acc34e9f761960