[INFO] fetching crate hashlife 0.0.0...
[INFO] testing hashlife-0.0.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate hashlife 0.0.0 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate hashlife 0.0.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hashlife 0.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hashlife 0.0.0
[INFO] tweaked toml for crates.io crate hashlife 0.0.0 written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate crates.io crate hashlife 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v1.0.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3809b11283b0a1a9e6bd6e3150c720cee58ba4a597e0bff21f92ec3ad08453ce
[INFO] running `Command { std: "docker" "start" "-a" "3809b11283b0a1a9e6bd6e3150c720cee58ba4a597e0bff21f92ec3ad08453ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3809b11283b0a1a9e6bd6e3150c720cee58ba4a597e0bff21f92ec3ad08453ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3809b11283b0a1a9e6bd6e3150c720cee58ba4a597e0bff21f92ec3ad08453ce", kill_on_drop: false }`
[INFO] [stdout] 3809b11283b0a1a9e6bd6e3150c720cee58ba4a597e0bff21f92ec3ad08453ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb9d9e191f67857716a7197806e1e5b4e1e1f5def304e17c635d6910d5c58286
[INFO] running `Command { std: "docker" "start" "-a" "fb9d9e191f67857716a7197806e1e5b4e1e1f5def304e17c635d6910d5c58286", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling cached_proc_macro v0.4.0
[INFO] [stderr]    Compiling pin-project v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.7
[INFO] [stderr]    Compiling futures-executor v0.3.7
[INFO] [stderr]    Compiling futures v0.3.7
[INFO] [stderr]    Compiling cached v0.20.0
[INFO] [stderr]    Compiling hashlife v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/rle_loader.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .map(|line| line.trim_left())
[INFO] [stdout]    |                          ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width_of_grid`
[INFO] [stdout]    --> src/rle_loader.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |     let width_of_grid = if width > width_from_file { width } else { width_from_file };
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_width_of_grid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height_of_grid`
[INFO] [stdout]    --> src/rle_loader.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |     let height_of_grid = if height > height_from_file { height } else { height_from_file };
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_height_of_grid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `level`
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     level: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]    --> src/lib.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn width(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]    --> src/lib.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn height(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_vector`
[INFO] [stdout]    --> src/lib.rs:722:8
[INFO] [stdout]     |
[INFO] [stdout] 722 |     fn as_vector(&self) -> Vec<Automata> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_automata`
[INFO] [stdout]    --> src/lib.rs:794:8
[INFO] [stdout]     |
[INFO] [stdout] 794 |     fn from_automata(cell: Automata) -> Node {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_array`
[INFO] [stdout]    --> src/lib.rs:806:8
[INFO] [stdout]     |
[INFO] [stdout] 806 |     fn as_array(&self) -> Vec<Vec<Automata>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.15s
[INFO] running `Command { std: "docker" "inspect" "fb9d9e191f67857716a7197806e1e5b4e1e1f5def304e17c635d6910d5c58286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb9d9e191f67857716a7197806e1e5b4e1e1f5def304e17c635d6910d5c58286", kill_on_drop: false }`
[INFO] [stdout] fb9d9e191f67857716a7197806e1e5b4e1e1f5def304e17c635d6910d5c58286
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7af8cceeb7da185a6be7ed26025acbc8d38bf6a9c26424d3dfa9197e538807ca
[INFO] running `Command { std: "docker" "start" "-a" "7af8cceeb7da185a6be7ed26025acbc8d38bf6a9c26424d3dfa9197e538807ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/rle_loader.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .map(|line| line.trim_left())
[INFO] [stdout]    |                          ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width_of_grid`
[INFO] [stdout]    --> src/rle_loader.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |     let width_of_grid = if width > width_from_file { width } else { width_from_file };
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_width_of_grid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height_of_grid`
[INFO] [stdout]    --> src/rle_loader.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |     let height_of_grid = if height > height_from_file { height } else { height_from_file };
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_height_of_grid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `level`
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     level: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]    --> src/lib.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn width(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]    --> src/lib.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn height(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_vector`
[INFO] [stdout]    --> src/lib.rs:722:8
[INFO] [stdout]     |
[INFO] [stdout] 722 |     fn as_vector(&self) -> Vec<Automata> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_automata`
[INFO] [stdout]    --> src/lib.rs:794:8
[INFO] [stdout]     |
[INFO] [stdout] 794 |     fn from_automata(cell: Automata) -> Node {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_array`
[INFO] [stdout]    --> src/lib.rs:806:8
[INFO] [stdout]     |
[INFO] [stdout] 806 |     fn as_array(&self) -> Vec<Vec<Automata>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling tui v0.12.0
[INFO] [stderr]    Compiling argh v0.1.4
[INFO] [stderr]    Compiling hashlife v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/rle_loader.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .map(|line| line.trim_left())
[INFO] [stdout]    |                          ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width_of_grid`
[INFO] [stdout]    --> src/rle_loader.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |     let width_of_grid = if width > width_from_file { width } else { width_from_file };
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_width_of_grid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height_of_grid`
[INFO] [stdout]    --> src/rle_loader.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |     let height_of_grid = if height > height_from_file { height } else { height_from_file };
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_height_of_grid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:956:13
[INFO] [stdout]     |
[INFO] [stdout] 956 |         let mut hashlife = Hashlife::from_array(cells, cell_width, cell_height, Edge::Truncate);
[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] [stdout] warning: field is never read: `level`
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     level: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_automata`
[INFO] [stdout]    --> src/lib.rs:794:8
[INFO] [stdout]     |
[INFO] [stdout] 794 |     fn from_automata(cell: Automata) -> Node {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.97s
[INFO] running `Command { std: "docker" "inspect" "7af8cceeb7da185a6be7ed26025acbc8d38bf6a9c26424d3dfa9197e538807ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af8cceeb7da185a6be7ed26025acbc8d38bf6a9c26424d3dfa9197e538807ca", kill_on_drop: false }`
[INFO] [stdout] 7af8cceeb7da185a6be7ed26025acbc8d38bf6a9c26424d3dfa9197e538807ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae148f5ed15f6a74f32345fa080138f686b8934169759138e16fd1221729bdc4
[INFO] running `Command { std: "docker" "start" "-a" "ae148f5ed15f6a74f32345fa080138f686b8934169759138e16fd1221729bdc4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stderr]   --> src/rle_loader.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |         .map(|line| line.trim_left())
[INFO] [stderr]    |                          ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width_of_grid`
[INFO] [stderr]    --> src/rle_loader.rs:191:9
[INFO] [stderr]     |
[INFO] [stderr] 191 |     let width_of_grid = if width > width_from_file { width } else { width_from_file };
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_width_of_grid`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height_of_grid`
[INFO] [stderr]    --> src/rle_loader.rs:192:9
[INFO] [stderr]     |
[INFO] [stderr] 192 |     let height_of_grid = if height > height_from_file { height } else { height_from_file };
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_height_of_grid`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `level`
[INFO] [stderr]    --> src/lib.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     level: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `width`
[INFO] [stderr]    --> src/lib.rs:191:8
[INFO] [stderr]     |
[INFO] [stderr] 191 |     fn width(&self) -> usize {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `height`
[INFO] [stderr]    --> src/lib.rs:195:8
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn height(&self) -> usize {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `as_vector`
[INFO] [stderr]    --> src/lib.rs:722:8
[INFO] [stderr]     |
[INFO] [stderr] 722 |     fn as_vector(&self) -> Vec<Automata> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_automata`
[INFO] [stderr]    --> src/lib.rs:794:8
[INFO] [stderr]     |
[INFO] [stderr] 794 |     fn from_automata(cell: Automata) -> Node {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `as_array`
[INFO] [stderr]    --> src/lib.rs:806:8
[INFO] [stderr]     |
[INFO] [stderr] 806 |     fn as_array(&self) -> Vec<Vec<Automata>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:956:13
[INFO] [stderr]     |
[INFO] [stderr] 956 |         let mut hashlife = Hashlife::from_array(cells, cell_width, cell_height, Edge::Truncate);
[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: `hashlife` (lib) generated 9 warnings
[INFO] [stderr] warning: `hashlife` (lib test) generated 6 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hashlife-733b3de72b9f653e)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test automata::tests::alive_count ... ok
[INFO] [stdout] test automata::tests::alive_count_as_rc ... ok
[INFO] [stdout] test automata::tests::cells_hashed ... ok
[INFO] [stdout] test automata::tests::cell_rcs_hashed ... ok
[INFO] [stdout] test automata::tests::from ... ok
[INFO] [stdout] test automata::tests::is_alive ... ok
[INFO] [stdout] test automata::tests::is_dead ... ok
[INFO] [stdout] test tests::bounding_box_single_pt ... ok
[INFO] [stdout] test tests::array_construct_even ... ok
[INFO] [stdout] test tests::as_array_trunc_next_gen ... ok
[INFO] [stdout] test tests::cell3x2 ... ok
[INFO] [stdout] test tests::empty_border ... ok
[INFO] [stdout] test tests::draw_to_viewport_buffer ... ok
[INFO] [stdout] test tests::get3 ... ok
[INFO] [stdout] test tests::get4 ... ok
[INFO] [stdout] test tests::max_level_eq_0 ... ok
[INFO] [stdout] test tests::max_level_eq_1 ... ok
[INFO] [stdout] test tests::get8 ... ok
[INFO] [stdout] test tests::draw_diff_viewport_buffer ... ok
[INFO] [stdout] test tests::new_bounding_box_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hashlife
[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" "ae148f5ed15f6a74f32345fa080138f686b8934169759138e16fd1221729bdc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae148f5ed15f6a74f32345fa080138f686b8934169759138e16fd1221729bdc4", kill_on_drop: false }`
[INFO] [stdout] ae148f5ed15f6a74f32345fa080138f686b8934169759138e16fd1221729bdc4