[INFO] cloning repository https://github.com/CyberPuck/conway-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CyberPuck/conway-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberPuck%2Fconway-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberPuck%2Fconway-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc1f1390a0cd3a094ce90fd054ffd22021911a95
[INFO] checking CyberPuck/conway-rust against master#84e729a59f216cc64755788a470f165429a731f4 for pr-123737-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberPuck%2Fconway-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CyberPuck/conway-rust on toolchain 84e729a59f216cc64755788a470f165429a731f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84e729a59f216cc64755788a470f165429a731f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CyberPuck/conway-rust
[INFO] finished tweaking git repo https://github.com/CyberPuck/conway-rust
[INFO] tweaked toml for git repo https://github.com/CyberPuck/conway-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CyberPuck/conway-rust 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" "+84e729a59f216cc64755788a470f165429a731f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+84e729a59f216cc64755788a470f165429a731f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2f41a50f3467470f70dcebe49202d6498065afb7c2b77ea58ea0de8ce871829
[INFO] running `Command { std: "docker" "start" "-a" "d2f41a50f3467470f70dcebe49202d6498065afb7c2b77ea58ea0de8ce871829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2f41a50f3467470f70dcebe49202d6498065afb7c2b77ea58ea0de8ce871829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2f41a50f3467470f70dcebe49202d6498065afb7c2b77ea58ea0de8ce871829", kill_on_drop: false }`
[INFO] [stdout] d2f41a50f3467470f70dcebe49202d6498065afb7c2b77ea58ea0de8ce871829
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+84e729a59f216cc64755788a470f165429a731f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69c86c5d5f0c132cb181180b5cb3444ebe276ee80b7a683535b14f38f383d1f2
[INFO] running `Command { std: "docker" "start" "-a" "69c86c5d5f0c132cb181180b5cb3444ebe276ee80b7a683535b14f38f383d1f2", kill_on_drop: false }`
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[INFO] [stderr]     Checking conway-rust v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/grid.rs:136:34
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     Err(_err) => (println!("{}", _err)), // skip over error, probably out of bounds
[INFO] [stdout]     |                                  ^                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -                     Err(_err) => (println!("{}", _err)), // skip over error, probably out of bounds
[INFO] [stdout] 136 +                     Err(_err) => println!("{}", _err), // skip over error, probably out of bounds
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/grid.rs:136:34
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     Err(_err) => (println!("{}", _err)), // skip over error, probably out of bounds
[INFO] [stdout]     |                                  ^                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -                     Err(_err) => (println!("{}", _err)), // skip over error, probably out of bounds
[INFO] [stdout] 136 +                     Err(_err) => println!("{}", _err), // skip over error, probably out of bounds
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `replace_grid` is never used
[INFO] [stdout]    --> src/conway_engine.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl ConwayEngine {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn replace_grid(&mut self, new_grid: grid::Grid<usize>) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `replace_grid` is never used
[INFO] [stdout]    --> src/conway_engine.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl ConwayEngine {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn replace_grid(&mut self, new_grid: grid::Grid<usize>) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "69c86c5d5f0c132cb181180b5cb3444ebe276ee80b7a683535b14f38f383d1f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69c86c5d5f0c132cb181180b5cb3444ebe276ee80b7a683535b14f38f383d1f2", kill_on_drop: false }`
[INFO] [stdout] 69c86c5d5f0c132cb181180b5cb3444ebe276ee80b7a683535b14f38f383d1f2
[INFO] checking CyberPuck/conway-rust against try#8d9ad7790f77ffaa434059a58807949d4583c045 for pr-123737-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberPuck%2Fconway-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CyberPuck/conway-rust on toolchain 8d9ad7790f77ffaa434059a58807949d4583c045
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d9ad7790f77ffaa434059a58807949d4583c045" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CyberPuck/conway-rust
[INFO] finished tweaking git repo https://github.com/CyberPuck/conway-rust
[INFO] tweaked toml for git repo https://github.com/CyberPuck/conway-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/CyberPuck/conway-rust 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" "+8d9ad7790f77ffaa434059a58807949d4583c045" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+8d9ad7790f77ffaa434059a58807949d4583c045" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf6022cf5de689e748deb8b8aa0b3c13c75c61780e218ad7e24b29c989655550
[INFO] running `Command { std: "docker" "start" "-a" "cf6022cf5de689e748deb8b8aa0b3c13c75c61780e218ad7e24b29c989655550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf6022cf5de689e748deb8b8aa0b3c13c75c61780e218ad7e24b29c989655550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf6022cf5de689e748deb8b8aa0b3c13c75c61780e218ad7e24b29c989655550", kill_on_drop: false }`
[INFO] [stdout] cf6022cf5de689e748deb8b8aa0b3c13c75c61780e218ad7e24b29c989655550
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+8d9ad7790f77ffaa434059a58807949d4583c045" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e05853a36692656463e35c82a03e42c47a3b6e4e0458bdb8009092e233e93c8
[INFO] running `Command { std: "docker" "start" "-a" "1e05853a36692656463e35c82a03e42c47a3b6e4e0458bdb8009092e233e93c8", kill_on_drop: false }`
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[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/grid.rs:136:34
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     Err(_err) => (println!("{}", _err)), // skip over error, probably out of bounds
[INFO] [stdout]     |                                  ^                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -                     Err(_err) => (println!("{}", _err)), // skip over error, probably out of bounds
[INFO] [stdout] 136 +                     Err(_err) => println!("{}", _err), // skip over error, probably out of bounds
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/grid.rs:136:34
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     Err(_err) => (println!("{}", _err)), // skip over error, probably out of bounds
[INFO] [stdout]     |                                  ^                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -                     Err(_err) => (println!("{}", _err)), // skip over error, probably out of bounds
[INFO] [stdout] 136 +                     Err(_err) => println!("{}", _err), // skip over error, probably out of bounds
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `replace_grid` is never used
[INFO] [stdout]    --> src/conway_engine.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl ConwayEngine {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn replace_grid(&mut self, new_grid: grid::Grid<usize>) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `replace_grid` is never used
[INFO] [stdout]    --> src/conway_engine.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl ConwayEngine {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn replace_grid(&mut self, new_grid: grid::Grid<usize>) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "1e05853a36692656463e35c82a03e42c47a3b6e4e0458bdb8009092e233e93c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e05853a36692656463e35c82a03e42c47a3b6e4e0458bdb8009092e233e93c8", kill_on_drop: false }`
[INFO] [stdout] 1e05853a36692656463e35c82a03e42c47a3b6e4e0458bdb8009092e233e93c8