[INFO] cloning repository https://github.com/philemonfaure/brain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/philemonfaure/brain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilemonfaure%2Fbrain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilemonfaure%2Fbrain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 200de9598a70c46de84da818e1eabc90ce5c2209
[INFO] building philemonfaure/brain against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilemonfaure%2Fbrain" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/philemonfaure/brain on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/philemonfaure/brain
[INFO] finished tweaking git repo https://github.com/philemonfaure/brain
[INFO] tweaked toml for git repo https://github.com/philemonfaure/brain written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/philemonfaure/brain 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17475c04ed1ec3fb7703c080a82404648fa2d9a8586871b1c53ed5b2770610b9
[INFO] running `Command { std: "docker" "start" "-a" "17475c04ed1ec3fb7703c080a82404648fa2d9a8586871b1c53ed5b2770610b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17475c04ed1ec3fb7703c080a82404648fa2d9a8586871b1c53ed5b2770610b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17475c04ed1ec3fb7703c080a82404648fa2d9a8586871b1c53ed5b2770610b9", kill_on_drop: false }`
[INFO] [stdout] 17475c04ed1ec3fb7703c080a82404648fa2d9a8586871b1c53ed5b2770610b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3370a625b64e328c9cf9100e579a510cbcebec31b63d10b9f063fd78db74b93
[INFO] running `Command { std: "docker" "start" "-a" "e3370a625b64e328c9cf9100e579a510cbcebec31b63d10b9f063fd78db74b93", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling zerocopy v0.8.0-alpha.6
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling rand_core v0.9.0-alpha.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0-alpha.1
[INFO] [stderr]    Compiling rand v0.9.0-alpha.1
[INFO] [stderr]    Compiling brain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `network_size`, `input_size`, `output_size`, `input_buffer`, and `output_buffer` are never read
[INFO] [stdout]  --> src/core/brain.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Brain
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 2 | {
[INFO] [stdout] 3 |     pub network_size: usize,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 4 |     pub input_size: usize,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 5 |     pub output_size: usize,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 6 |     pub neurons: Vec<(f32, Vec<f32>)>,
[INFO] [stdout] 7 |     pub input_buffer: Vec<f32>,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 8 |     pub output_buffer: Vec<f32>,
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `update_input_buffer` and `update_output_buffer` are never used
[INFO] [stdout]   --> src/core/brain.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Brain
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn update_input_buffer(&mut self)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn update_output_buffer(&mut self)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "e3370a625b64e328c9cf9100e579a510cbcebec31b63d10b9f063fd78db74b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3370a625b64e328c9cf9100e579a510cbcebec31b63d10b9f063fd78db74b93", kill_on_drop: false }`
[INFO] [stdout] e3370a625b64e328c9cf9100e579a510cbcebec31b63d10b9f063fd78db74b93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eeff6e15dad6ae4f4eb79b331ab03bea36ce6697d6e68e5440ce6d145b0dd57
[INFO] running `Command { std: "docker" "start" "-a" "2eeff6e15dad6ae4f4eb79b331ab03bea36ce6697d6e68e5440ce6d145b0dd57", kill_on_drop: false }`
[INFO] [stderr]    Compiling brain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `network_size`, `input_size`, `output_size`, `input_buffer`, and `output_buffer` are never read
[INFO] [stdout]  --> src/core/brain.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Brain
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 2 | {
[INFO] [stdout] 3 |     pub network_size: usize,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 4 |     pub input_size: usize,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 5 |     pub output_size: usize,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 6 |     pub neurons: Vec<(f32, Vec<f32>)>,
[INFO] [stdout] 7 |     pub input_buffer: Vec<f32>,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 8 |     pub output_buffer: Vec<f32>,
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `update_input_buffer` and `update_output_buffer` are never used
[INFO] [stdout]   --> src/core/brain.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Brain
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn update_input_buffer(&mut self)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn update_output_buffer(&mut self)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "2eeff6e15dad6ae4f4eb79b331ab03bea36ce6697d6e68e5440ce6d145b0dd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eeff6e15dad6ae4f4eb79b331ab03bea36ce6697d6e68e5440ce6d145b0dd57", kill_on_drop: false }`
[INFO] [stdout] 2eeff6e15dad6ae4f4eb79b331ab03bea36ce6697d6e68e5440ce6d145b0dd57