[INFO] cloning repository https://github.com/gorilskij/rustiks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gorilskij/rustiks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgorilskij%2Frustiks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgorilskij%2Frustiks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5dfbe83284d622992353cc3d2587cbcbfa014d01
[INFO] checking gorilskij/rustiks against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgorilskij%2Frustiks" "/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/gorilskij/rustiks on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gorilskij/rustiks
[INFO] finished tweaking git repo https://github.com/gorilskij/rustiks
[INFO] tweaked toml for git repo https://github.com/gorilskij/rustiks written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/gorilskij/rustiks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rgb v0.8.14
[INFO] [stderr]   Downloaded colored v1.8.0
[INFO] [stderr]   Downloaded syn v1.0.9
[INFO] [stderr]   Downloaded winconsole v0.10.0
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 279eae62a38d4521639b8c1854d7f0ec753faa8fcde24165608899dc57d6444d
[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" "279eae62a38d4521639b8c1854d7f0ec753faa8fcde24165608899dc57d6444d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "279eae62a38d4521639b8c1854d7f0ec753faa8fcde24165608899dc57d6444d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "279eae62a38d4521639b8c1854d7f0ec753faa8fcde24165608899dc57d6444d", kill_on_drop: false }`
[INFO] [stdout] 279eae62a38d4521639b8c1854d7f0ec753faa8fcde24165608899dc57d6444d
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c948ac604b582cd84b7d4b725b48111ffcfe06e8e1d5b4dc7026a3d1fb73af4a
[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" "c948ac604b582cd84b7d4b725b48111ffcfe06e8e1d5b4dc7026a3d1fb73af4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.9
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking Rustiks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cross_alg`
[INFO] [stdout]   --> src/cube/solving.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let cross_alg = self.solve_cross_alg();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cross_alg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Rustiks` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rustiks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/algorithm_data/mod.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |         mem::replace(data, Some(load(path)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cross_alg`
[INFO] [stdout]   --> src/cube/solving.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let cross_alg = self.solve_cross_alg();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cross_alg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Rustiks` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rustiks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/algorithm_data/mod.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |         mem::replace(data, Some(load(path)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.42s
[INFO] running `Command { std: "docker" "inspect" "c948ac604b582cd84b7d4b725b48111ffcfe06e8e1d5b4dc7026a3d1fb73af4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c948ac604b582cd84b7d4b725b48111ffcfe06e8e1d5b4dc7026a3d1fb73af4a", kill_on_drop: false }`
[INFO] [stdout] c948ac604b582cd84b7d4b725b48111ffcfe06e8e1d5b4dc7026a3d1fb73af4a