[INFO] updating cached repository https://github.com/spacekookie/spaces
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9a37e72cc44957b488d82a1574f74bab1c914387
[INFO] testing spacekookie/spaces against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacekookie%2Fspaces" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spacekookie/spaces on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/spacekookie/spaces
[INFO] finished tweaking git repo https://github.com/spacekookie/spaces
[INFO] tweaked toml for git repo https://github.com/spacekookie/spaces written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/spacekookie/spaces already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 9e1c5c59bba4f143bfee2dcd45c61034340c0c6b2e53b7fe8fc4db015f76865f
[INFO] running `"docker" "start" "-a" "9e1c5c59bba4f143bfee2dcd45c61034340c0c6b2e53b7fe8fc4db015f76865f"`
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling serde_json v1.0.31
[INFO] [stderr]    Compiling toml v0.4.8
[INFO] [stderr]    Compiling i3ipc v0.8.4
[INFO] [stderr]    Compiling spaces v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `i3ipc::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use i3ipc::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:14:14
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let (x, _) = Rhombus::rel_position(i);
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `items`
[INFO] [stderr]   --> src/layout.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn layout(&self, items: Vec<String>) -> Vec<Block> {
[INFO] [stderr]    |                          ^^^^^ help: consider prefixing with an underscore: `_items`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/layout/rhombus.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         for i in 0..=len {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/workspaces.rs:13:47
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn set_workspace(conn: &mut I3Connection, name: &String) {
[INFO] [stderr]    |                                               ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x`
[INFO] [stderr]   --> src/layout/rhombus.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn x(gen: u64, index: u64) -> i64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `y`
[INFO] [stderr]   --> src/layout/rhombus.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn y(index: u64) -> i64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Shape`
[INFO] [stderr]   --> src/layout.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub enum Shape {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Layout`
[INFO] [stderr]   --> src/layout.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Layout {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Block`
[INFO] [stderr]   --> src/layout.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct Block {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/layout.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new(shape: Shape, offset: (i64, i64)) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `layout`
[INFO] [stderr]   --> src/layout.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn layout(&self, items: Vec<String>) -> Vec<Block> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_workspaces`
[INFO] [stderr]  --> src/workspaces.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_workspaces(conn: &mut I3Connection) -> Vec<String> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_workspace`
[INFO] [stderr]   --> src/workspaces.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn set_workspace(conn: &mut I3Connection, name: &String) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `"docker" "inspect" "9e1c5c59bba4f143bfee2dcd45c61034340c0c6b2e53b7fe8fc4db015f76865f"`
[INFO] running `"docker" "rm" "-f" "9e1c5c59bba4f143bfee2dcd45c61034340c0c6b2e53b7fe8fc4db015f76865f"`
[INFO] [stdout] 9e1c5c59bba4f143bfee2dcd45c61034340c0c6b2e53b7fe8fc4db015f76865f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] cfa5c4d7dd21a83cf195a65e7761d05f9a50abc74b9293ae60097d9bece85c0d
[INFO] running `"docker" "start" "-a" "cfa5c4d7dd21a83cf195a65e7761d05f9a50abc74b9293ae60097d9bece85c0d"`
[INFO] [stderr]    Compiling spaces v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `i3ipc::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use i3ipc::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:14:14
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let (x, _) = Rhombus::rel_position(i);
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `items`
[INFO] [stderr]   --> src/layout.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn layout(&self, items: Vec<String>) -> Vec<Block> {
[INFO] [stderr]    |                          ^^^^^ help: consider prefixing with an underscore: `_items`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/layout/rhombus.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         for i in 0..=len {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/workspaces.rs:13:47
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn set_workspace(conn: &mut I3Connection, name: &String) {
[INFO] [stderr]    |                                               ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x`
[INFO] [stderr]   --> src/layout/rhombus.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn x(gen: u64, index: u64) -> i64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `y`
[INFO] [stderr]   --> src/layout/rhombus.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn y(index: u64) -> i64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Shape`
[INFO] [stderr]   --> src/layout.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub enum Shape {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Layout`
[INFO] [stderr]   --> src/layout.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Layout {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Block`
[INFO] [stderr]   --> src/layout.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct Block {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/layout.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new(shape: Shape, offset: (i64, i64)) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `layout`
[INFO] [stderr]   --> src/layout.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn layout(&self, items: Vec<String>) -> Vec<Block> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_workspaces`
[INFO] [stderr]  --> src/workspaces.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_workspaces(conn: &mut I3Connection) -> Vec<String> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_workspace`
[INFO] [stderr]   --> src/workspaces.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn set_workspace(conn: &mut I3Connection, name: &String) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "cfa5c4d7dd21a83cf195a65e7761d05f9a50abc74b9293ae60097d9bece85c0d"`
[INFO] running `"docker" "rm" "-f" "cfa5c4d7dd21a83cf195a65e7761d05f9a50abc74b9293ae60097d9bece85c0d"`
[INFO] [stdout] cfa5c4d7dd21a83cf195a65e7761d05f9a50abc74b9293ae60097d9bece85c0d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 10179a9e46f89466254ad4d8bbaaaee747956c6a8ef7dbe722089af3cb5f3b67
[INFO] running `"docker" "start" "-a" "10179a9e46f89466254ad4d8bbaaaee747956c6a8ef7dbe722089af3cb5f3b67"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/spaces-796e0832a9bb60d0
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test layout::rhombus::generations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "10179a9e46f89466254ad4d8bbaaaee747956c6a8ef7dbe722089af3cb5f3b67"`
[INFO] running `"docker" "rm" "-f" "10179a9e46f89466254ad4d8bbaaaee747956c6a8ef7dbe722089af3cb5f3b67"`
[INFO] [stdout] 10179a9e46f89466254ad4d8bbaaaee747956c6a8ef7dbe722089af3cb5f3b67