[INFO] cloning repository https://github.com/danielway/nn-sim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danielway/nn-sim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielway%2Fnn-sim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielway%2Fnn-sim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1a7e2c5fbe8ff5550da7ef8b910c95bc5a0d07c
[INFO] testing danielway/nn-sim against 1.84.0 for beta-1.85-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielway%2Fnn-sim" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielway/nn-sim on toolchain 1.84.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.84.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danielway/nn-sim
[INFO] finished tweaking git repo https://github.com/danielway/nn-sim
[INFO] tweaked toml for git repo https://github.com/danielway/nn-sim written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/danielway/nn-sim 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" "+1.84.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vte v0.11.0
[INFO] [stderr]   Downloaded micrograd-rs v0.0.3
[INFO] [stderr]   Downloaded tty-interface v4.0.0
[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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10cce1a6e88706f28149533f24a97b229d16d4e108d8149435237cf0cde40c4d
[INFO] running `Command { std: "docker" "start" "-a" "10cce1a6e88706f28149533f24a97b229d16d4e108d8149435237cf0cde40c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10cce1a6e88706f28149533f24a97b229d16d4e108d8149435237cf0cde40c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10cce1a6e88706f28149533f24a97b229d16d4e108d8149435237cf0cde40c4d", kill_on_drop: false }`
[INFO] [stdout] 10cce1a6e88706f28149533f24a97b229d16d4e108d8149435237cf0cde40c4d
[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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9243b3e8fa06670d5b3694689690feeb28310120097896a96176ec58c54b615f
[INFO] running `Command { std: "docker" "start" "-a" "9243b3e8fa06670d5b3694689690feeb28310120097896a96176ec58c54b615f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling crossterm v0.25.0
[INFO] [stderr]    Compiling vte v0.11.0
[INFO] [stderr]    Compiling micrograd-rs v0.0.3
[INFO] [stderr]    Compiling vt100 v0.15.2
[INFO] [stderr]    Compiling tty-interface v4.0.0
[INFO] [stderr]    Compiling nn-sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut base = Model::random();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "9243b3e8fa06670d5b3694689690feeb28310120097896a96176ec58c54b615f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9243b3e8fa06670d5b3694689690feeb28310120097896a96176ec58c54b615f", kill_on_drop: false }`
[INFO] [stdout] 9243b3e8fa06670d5b3694689690feeb28310120097896a96176ec58c54b615f
[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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18b74e681b6280b76b7b00bccfc156382c59c05c94e1e53d3b0c04a828600b23
[INFO] running `Command { std: "docker" "start" "-a" "18b74e681b6280b76b7b00bccfc156382c59c05c94e1e53d3b0c04a828600b23", kill_on_drop: false }`
[INFO] [stderr]    Compiling nn-sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut base = Model::random();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "18b74e681b6280b76b7b00bccfc156382c59c05c94e1e53d3b0c04a828600b23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b74e681b6280b76b7b00bccfc156382c59c05c94e1e53d3b0c04a828600b23", kill_on_drop: false }`
[INFO] [stdout] 18b74e681b6280b76b7b00bccfc156382c59c05c94e1e53d3b0c04a828600b23
[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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c30ea5a044a8a5e8eba09ad40c495b6e9c099ec9b81ed769450c3d9388706ad9
[INFO] running `Command { std: "docker" "start" "-a" "c30ea5a044a8a5e8eba09ad40c495b6e9c099ec9b81ed769450c3d9388706ad9", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut base = Model::random();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nn-sim` (bin "nn-sim" test) generated 1 warning (run `cargo fix --bin "nn-sim" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/nn_sim-79ea0db7343b7dd8)
[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] running `Command { std: "docker" "inspect" "c30ea5a044a8a5e8eba09ad40c495b6e9c099ec9b81ed769450c3d9388706ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c30ea5a044a8a5e8eba09ad40c495b6e9c099ec9b81ed769450c3d9388706ad9", kill_on_drop: false }`
[INFO] [stdout] c30ea5a044a8a5e8eba09ad40c495b6e9c099ec9b81ed769450c3d9388706ad9