[INFO] cloning repository https://github.com/spacekookie/spaces
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spacekookie/spaces" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacekookie%2Fspaces", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacekookie%2Fspaces'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a37e72cc44957b488d82a1574f74bab1c914387
[INFO] checking spacekookie/spaces against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacekookie%2Fspaces" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spacekookie/spaces on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc9fdc1bcedd2870d8a0fa3a403430292fbd37175273c992bebe0e2557f3dad2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc9fdc1bcedd2870d8a0fa3a403430292fbd37175273c992bebe0e2557f3dad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc9fdc1bcedd2870d8a0fa3a403430292fbd37175273c992bebe0e2557f3dad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc9fdc1bcedd2870d8a0fa3a403430292fbd37175273c992bebe0e2557f3dad2", kill_on_drop: false }`
[INFO] [stdout] fc9fdc1bcedd2870d8a0fa3a403430292fbd37175273c992bebe0e2557f3dad2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c19584f30cacc15e102ab105bbcdfab55a967e8a4704330952944d4e509c4bcb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c19584f30cacc15e102ab105bbcdfab55a967e8a4704330952944d4e509c4bcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking serde_json v1.0.31
[INFO] [stderr]     Checking toml v0.4.8
[INFO] [stderr]     Checking i3ipc v0.8.4
[INFO] [stderr]     Checking spaces v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `i3ipc::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use i3ipc::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let (x, _) = Rhombus::rel_position(i);
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `items`
[INFO] [stdout]   --> src/layout.rs:41:26
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn layout(&self, items: Vec<String>) -> Vec<Block> {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_items`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/layout/rhombus.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for i in 0..=len {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/workspaces.rs:13:47
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn set_workspace(conn: &mut I3Connection, name: &String) {
[INFO] [stdout]    |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]   --> src/layout/rhombus.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn x(gen: u64, index: u64) -> i64 {
[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: `y`
[INFO] [stdout]   --> src/layout/rhombus.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn y(index: u64) -> i64 {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Shape`
[INFO] [stdout]   --> src/layout.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Shape {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Layout`
[INFO] [stdout]   --> src/layout.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layout {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]   --> src/layout.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Block {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/layout.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(shape: Shape, offset: (i64, i64)) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `layout`
[INFO] [stdout]   --> src/layout.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn layout(&self, items: Vec<String>) -> Vec<Block> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `i3ipc::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use i3ipc::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_workspaces`
[INFO] [stdout]  --> src/workspaces.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_workspaces(conn: &mut I3Connection) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_workspace`
[INFO] [stdout]   --> src/workspaces.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn set_workspace(conn: &mut I3Connection, name: &String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let (x, _) = Rhombus::rel_position(i);
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `items`
[INFO] [stdout]   --> src/layout.rs:41:26
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn layout(&self, items: Vec<String>) -> Vec<Block> {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_items`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/layout/rhombus.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for i in 0..=len {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/workspaces.rs:13:47
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn set_workspace(conn: &mut I3Connection, name: &String) {
[INFO] [stdout]    |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]   --> src/layout/rhombus.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn x(gen: u64, index: u64) -> i64 {
[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: `y`
[INFO] [stdout]   --> src/layout/rhombus.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn y(index: u64) -> i64 {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Shape`
[INFO] [stdout]   --> src/layout.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Shape {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Layout`
[INFO] [stdout]   --> src/layout.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layout {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]   --> src/layout.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Block {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/layout.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(shape: Shape, offset: (i64, i64)) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `layout`
[INFO] [stdout]   --> src/layout.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn layout(&self, items: Vec<String>) -> Vec<Block> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_workspaces`
[INFO] [stdout]  --> src/workspaces.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_workspaces(conn: &mut I3Connection) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_workspace`
[INFO] [stdout]   --> src/workspaces.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn set_workspace(conn: &mut I3Connection, name: &String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.94s
[INFO] running `Command { std: "docker" "inspect" "c19584f30cacc15e102ab105bbcdfab55a967e8a4704330952944d4e509c4bcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19584f30cacc15e102ab105bbcdfab55a967e8a4704330952944d4e509c4bcb", kill_on_drop: false }`
[INFO] [stdout] c19584f30cacc15e102ab105bbcdfab55a967e8a4704330952944d4e509c4bcb