[INFO] cloning repository https://github.com/dr4ds/netwalk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dr4ds/netwalk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdr4ds%2Fnetwalk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdr4ds%2Fnetwalk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00ec83e250bbd270da31e0013b5d7d3cb25205d1
[INFO] checking dr4ds/netwalk against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdr4ds%2Fnetwalk" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dr4ds/netwalk on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dr4ds/netwalk
[INFO] finished tweaking git repo https://github.com/dr4ds/netwalk
[INFO] tweaked toml for git repo https://github.com/dr4ds/netwalk written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/dr4ds/netwalk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded actix-files v0.2.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f335bf4666af60cc5517b8df1a4bd100f803ca04cb50056cd59569bea75a6a4
[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" "0f335bf4666af60cc5517b8df1a4bd100f803ca04cb50056cd59569bea75a6a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f335bf4666af60cc5517b8df1a4bd100f803ca04cb50056cd59569bea75a6a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f335bf4666af60cc5517b8df1a4bd100f803ca04cb50056cd59569bea75a6a4", kill_on_drop: false }`
[INFO] [stdout] 0f335bf4666af60cc5517b8df1a4bd100f803ca04cb50056cd59569bea75a6a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97196b51d3feb545dd1ada1aee78aa44f8e947f6ae170bcf11e47b48c28c00ad
[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" "97196b51d3feb545dd1ada1aee78aa44f8e947f6ae170bcf11e47b48c28c00ad", kill_on_drop: false }`
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[INFO] [stderr]     Checking netwalk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `num_traits::FromPrimitive`
[INFO] [stdout]  --> src/server/session.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use num_traits::FromPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_traits::FromPrimitive`
[INFO] [stdout]  --> src/server/session.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use num_traits::FromPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_neighbours`
[INFO] [stdout]    --> src/common/board.rs:116:10
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn get_neighbours(&self) -> Vec<Flag> {
[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_arr`
[INFO] [stdout]   --> src/common/rng.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 |   pub fn from_arr(arr: [u8; 32]) -> Self {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> src/common/rng.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn from_string(s: String) -> Result<Self, InvalidSeedError> {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `free_directions`
[INFO] [stdout]   --> src/common/tile.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |   pub fn free_directions(&self) -> u8 {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_neighbours`
[INFO] [stdout]    --> src/common/board.rs:116:10
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn get_neighbours(&self) -> Vec<Flag> {
[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_arr`
[INFO] [stdout]   --> src/common/rng.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 |   pub fn from_arr(arr: [u8; 32]) -> Self {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> src/common/rng.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn from_string(s: String) -> Result<Self, InvalidSeedError> {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `free_directions`
[INFO] [stdout]   --> src/common/tile.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |   pub fn free_directions(&self) -> u8 {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 58s
[INFO] running `Command { std: "docker" "inspect" "97196b51d3feb545dd1ada1aee78aa44f8e947f6ae170bcf11e47b48c28c00ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97196b51d3feb545dd1ada1aee78aa44f8e947f6ae170bcf11e47b48c28c00ad", kill_on_drop: false }`
[INFO] [stdout] 97196b51d3feb545dd1ada1aee78aa44f8e947f6ae170bcf11e47b48c28c00ad