[INFO] cloning repository https://github.com/renatocassino/maze-wasm-kruskal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/renatocassino/maze-wasm-kruskal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenatocassino%2Fmaze-wasm-kruskal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenatocassino%2Fmaze-wasm-kruskal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4962dba4be30eff696475b657c09eaced0071db8
[INFO] checking renatocassino/maze-wasm-kruskal against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenatocassino%2Fmaze-wasm-kruskal" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/renatocassino/maze-wasm-kruskal on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/renatocassino/maze-wasm-kruskal
[INFO] finished tweaking git repo https://github.com/renatocassino/maze-wasm-kruskal
[INFO] tweaked toml for git repo https://github.com/renatocassino/maze-wasm-kruskal written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/renatocassino/maze-wasm-kruskal 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c9b67db0c6ad326fe60db489eb50fd597c518f7bcded8426fcba868706df893
[INFO] running `Command { std: "docker" "start" "-a" "4c9b67db0c6ad326fe60db489eb50fd597c518f7bcded8426fcba868706df893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c9b67db0c6ad326fe60db489eb50fd597c518f7bcded8426fcba868706df893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9b67db0c6ad326fe60db489eb50fd597c518f7bcded8426fcba868706df893", kill_on_drop: false }`
[INFO] [stdout] 4c9b67db0c6ad326fe60db489eb50fd597c518f7bcded8426fcba868706df893
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c724421bc8f311b7cea90acd0f2b0c5588a0b2bf7dea1381ece723bf344e7e76
[INFO] running `Command { std: "docker" "start" "-a" "c724421bc8f311b7cea90acd0f2b0c5588a0b2bf7dea1381ece723bf344e7e76", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.82
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling once_cell v1.13.1
[INFO] [stderr]    Compiling bumpalo v3.11.0
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling wasm-bindgen v0.2.82
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.82
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.82
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.82
[INFO] [stderr]     Checking js-sys v0.3.59
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.32
[INFO] [stderr]     Checking web-sys v0.3.59
[INFO] [stderr]     Checking maze-wasm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/maze.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `console_log`
[INFO] [stdout]   --> src/maze.rs:37:14
[INFO] [stdout]    |
[INFO] [stdout] 37 | macro_rules! console_log {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/maze.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `console_log`
[INFO] [stdout]   --> src/maze.rs:37:14
[INFO] [stdout]    |
[INFO] [stdout] 37 | macro_rules! console_log {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/maze.rs:161:21
[INFO] [stdout]     |
[INFO] [stdout] 161 |         for (index, block) in self.blocks.iter().enumerate() {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `closure` is never read
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Interval {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 20 |     closure: Closure<dyn FnMut()>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_positions_next_block` is never used
[INFO] [stdout]   --> src/maze.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Maze {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn get_positions_next_block(&mut self, index: usize) -> Vec<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/maze.rs:161:21
[INFO] [stdout]     |
[INFO] [stdout] 161 |         for (index, block) in self.blocks.iter().enumerate() {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `closure` is never read
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Interval {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 20 |     closure: Closure<dyn FnMut()>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_positions_next_block` is never used
[INFO] [stdout]   --> src/maze.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Maze {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn get_positions_next_block(&mut self, index: usize) -> Vec<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.94s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.82
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "c724421bc8f311b7cea90acd0f2b0c5588a0b2bf7dea1381ece723bf344e7e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c724421bc8f311b7cea90acd0f2b0c5588a0b2bf7dea1381ece723bf344e7e76", kill_on_drop: false }`
[INFO] [stdout] c724421bc8f311b7cea90acd0f2b0c5588a0b2bf7dea1381ece723bf344e7e76