[INFO] cloning repository https://github.com/slightknack/hashlife
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slightknack/hashlife" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslightknack%2Fhashlife", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslightknack%2Fhashlife'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f56d1bcd9dc8f5a6041902d64c7d9af040cab708
[INFO] checking slightknack/hashlife against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslightknack%2Fhashlife" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/slightknack/hashlife on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/slightknack/hashlife
[INFO] finished tweaking git repo https://github.com/slightknack/hashlife
[INFO] tweaked toml for git repo https://github.com/slightknack/hashlife written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/slightknack/hashlife already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8cfd5a5b48f74577c825813bc2893111d54ec1256c522acb84427d871578bdfc
[INFO] running `Command { std: "docker" "start" "-a" "8cfd5a5b48f74577c825813bc2893111d54ec1256c522acb84427d871578bdfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cfd5a5b48f74577c825813bc2893111d54ec1256c522acb84427d871578bdfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cfd5a5b48f74577c825813bc2893111d54ec1256c522acb84427d871578bdfc", kill_on_drop: false }`
[INFO] [stdout] 8cfd5a5b48f74577c825813bc2893111d54ec1256c522acb84427d871578bdfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91a4d5b12c009626b289297fc07d6b8ffffa5a977608218f4345047571d08145
[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" "91a4d5b12c009626b289297fc07d6b8ffffa5a977608218f4345047571d08145", kill_on_drop: false }`
[INFO] [stderr]     Checking hashlife v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::convert::From`
[INFO] [stdout]  --> src/world.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::From`
[INFO] [stdout]  --> src/world.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Macro`
[INFO] [stdout]  --> src/cell.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Macro(Macro),
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Base`
[INFO] [stdout]  --> src/cell.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Base([bool;4]),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cell.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_wrap`
[INFO] [stdout]    --> src/cell.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn try_wrap(m: Macro, world: &mut World) -> Rc<Cell> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/world.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `World`
[INFO] [stdout]   --> src/world.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct World(HashMap<Quarters, Rc<Cell>>);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blank`
[INFO] [stdout]   --> src/world.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn blank() -> World {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blueprint`
[INFO] [stdout]   --> src/world.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn blueprint(&mut self, quarters: Quarters, whole: Rc<Cell>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_build`
[INFO] [stdout]   --> src/world.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn try_build(&self, quarters: &Quarters) -> Option<&Rc<Cell>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `horiz`
[INFO] [stdout]   --> src/macro_.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn horiz(left: &Macro, right: &Macro, world: &mut World) -> Macro {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `vert`
[INFO] [stdout]   --> src/macro_.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn vert(top: &Macro, bottom: &Macro, world: &mut World) -> Macro {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `center`
[INFO] [stdout]   --> src/macro_.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn center(
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consolidate`
[INFO] [stdout]   --> src/macro_.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn consolidate(
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Macro`
[INFO] [stdout]  --> src/cell.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Macro(Macro),
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Base`
[INFO] [stdout]  --> src/cell.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Base([bool;4]),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cell.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_wrap`
[INFO] [stdout]    --> src/cell.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn try_wrap(m: Macro, world: &mut World) -> Rc<Cell> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/world.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `World`
[INFO] [stdout]   --> src/world.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct World(HashMap<Quarters, Rc<Cell>>);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blank`
[INFO] [stdout]   --> src/world.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn blank() -> World {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blueprint`
[INFO] [stdout]   --> src/world.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn blueprint(&mut self, quarters: Quarters, whole: Rc<Cell>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_build`
[INFO] [stdout]   --> src/world.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn try_build(&self, quarters: &Quarters) -> Option<&Rc<Cell>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `horiz`
[INFO] [stdout]   --> src/macro_.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn horiz(left: &Macro, right: &Macro, world: &mut World) -> Macro {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `vert`
[INFO] [stdout]   --> src/macro_.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn vert(top: &Macro, bottom: &Macro, world: &mut World) -> Macro {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `center`
[INFO] [stdout]   --> src/macro_.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn center(
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consolidate`
[INFO] [stdout]   --> src/macro_.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn consolidate(
[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 0.47s
[INFO] running `Command { std: "docker" "inspect" "91a4d5b12c009626b289297fc07d6b8ffffa5a977608218f4345047571d08145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a4d5b12c009626b289297fc07d6b8ffffa5a977608218f4345047571d08145", kill_on_drop: false }`
[INFO] [stdout] 91a4d5b12c009626b289297fc07d6b8ffffa5a977608218f4345047571d08145