[INFO] cloning repository https://github.com/jntun/Cellato
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jntun/Cellato" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjntun%2FCellato", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjntun%2FCellato'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c930f63873f7516803d12dca3fcc176de1d81131
[INFO] building jntun/Cellato 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%2Fjntun%2FCellato" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jntun/Cellato 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/jntun/Cellato
[INFO] finished tweaking git repo https://github.com/jntun/Cellato
[INFO] tweaked toml for git repo https://github.com/jntun/Cellato written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jntun/Cellato 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] 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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4494363d68d5e85687b31508f98d461ee7d735bb3cdfb8444f05900dde1f24e5
[INFO] running `Command { std: "docker" "start" "-a" "4494363d68d5e85687b31508f98d461ee7d735bb3cdfb8444f05900dde1f24e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4494363d68d5e85687b31508f98d461ee7d735bb3cdfb8444f05900dde1f24e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4494363d68d5e85687b31508f98d461ee7d735bb3cdfb8444f05900dde1f24e5", kill_on_drop: false }`
[INFO] [stdout] 4494363d68d5e85687b31508f98d461ee7d735bb3cdfb8444f05900dde1f24e5
[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 -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] f67a72cd077e2ed2745e9d9529d7330eb8285fd0b46a04e4766ff614c4b99950
[INFO] running `Command { std: "docker" "start" "-a" "f67a72cd077e2ed2745e9d9529d7330eb8285fd0b46a04e4766ff614c4b99950", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling Cellato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Div`
[INFO] [stdout]  --> src/grid.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Div;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::Infallible`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::Infallible;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/cell.rs:1:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Debug, Display, Formatter, Write};
[INFO] [stdout]   |                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epoch`
[INFO] [stdout]    --> src/grid.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |         for epoch in 0..self.epochs {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_epoch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/grid.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         for i in 0..epochs {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/grid.rs:185:18
[INFO] [stdout]     |
[INFO] [stdout] 185 |             for (width, cell) in row.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:67:25
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `START_CELL` is never used
[INFO] [stdout]   --> src/main.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const START_CELL: usize = WIDTH/2;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cell_count` is never read
[INFO] [stdout]   --> src/grid.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Grid {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     cell_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_next_cell_id` is never used
[INFO] [stdout]    --> src/grid.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl Grid {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 126 |     fn get_next_cell_id(&mut self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/cell.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Cell {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn new(id: usize, state: State) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slow_wolfram` is never used
[INFO] [stdout]   --> src/rule.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn slow_wolfram(rule: WolframRule, input_cfg: Config) -> State {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.60s
[INFO] running `Command { std: "docker" "inspect" "f67a72cd077e2ed2745e9d9529d7330eb8285fd0b46a04e4766ff614c4b99950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f67a72cd077e2ed2745e9d9529d7330eb8285fd0b46a04e4766ff614c4b99950", kill_on_drop: false }`
[INFO] [stdout] f67a72cd077e2ed2745e9d9529d7330eb8285fd0b46a04e4766ff614c4b99950
[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 -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] 7cac0e66f2a8c8545ce14dc81f1550e31859a2104249c4a5fc6bfdf76a65b93a
[INFO] running `Command { std: "docker" "start" "-a" "7cac0e66f2a8c8545ce14dc81f1550e31859a2104249c4a5fc6bfdf76a65b93a", kill_on_drop: false }`
[INFO] [stderr]    Compiling Cellato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Div`
[INFO] [stdout]  --> src/grid.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Div;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::Infallible`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::Infallible;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/cell.rs:1:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Debug, Display, Formatter, Write};
[INFO] [stdout]   |                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epoch`
[INFO] [stdout]    --> src/grid.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |         for epoch in 0..self.epochs {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_epoch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/grid.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         for i in 0..epochs {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/grid.rs:185:18
[INFO] [stdout]     |
[INFO] [stdout] 185 |             for (width, cell) in row.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:67:25
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `START_CELL` is never used
[INFO] [stdout]   --> src/main.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const START_CELL: usize = WIDTH/2;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cell_count` is never read
[INFO] [stdout]   --> src/grid.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Grid {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     cell_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_next_cell_id` is never used
[INFO] [stdout]    --> src/grid.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl Grid {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 126 |     fn get_next_cell_id(&mut self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/cell.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Cell {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn new(id: usize, state: State) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slow_wolfram` is never used
[INFO] [stdout]   --> src/rule.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn slow_wolfram(rule: WolframRule, input_cfg: Config) -> State {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "7cac0e66f2a8c8545ce14dc81f1550e31859a2104249c4a5fc6bfdf76a65b93a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cac0e66f2a8c8545ce14dc81f1550e31859a2104249c4a5fc6bfdf76a65b93a", kill_on_drop: false }`
[INFO] [stdout] 7cac0e66f2a8c8545ce14dc81f1550e31859a2104249c4a5fc6bfdf76a65b93a