[INFO] cloning repository https://github.com/FrancescoDeSimone/sorting_visualizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FrancescoDeSimone/sorting_visualizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrancescoDeSimone%2Fsorting_visualizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrancescoDeSimone%2Fsorting_visualizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80b7d826d1195dab4d802dc44d4ad83a1bd0dd0c
[INFO] testing FrancescoDeSimone/sorting_visualizer against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrancescoDeSimone%2Fsorting_visualizer" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FrancescoDeSimone/sorting_visualizer on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FrancescoDeSimone/sorting_visualizer
[INFO] finished tweaking git repo https://github.com/FrancescoDeSimone/sorting_visualizer
[INFO] tweaked toml for git repo https://github.com/FrancescoDeSimone/sorting_visualizer written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/FrancescoDeSimone/sorting_visualizer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn-mid v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bbe6ae290581b26d7046029708bae31aac19f96f47ac927b6b81d27adfb8414
[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" "2bbe6ae290581b26d7046029708bae31aac19f96f47ac927b6b81d27adfb8414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bbe6ae290581b26d7046029708bae31aac19f96f47ac927b6b81d27adfb8414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bbe6ae290581b26d7046029708bae31aac19f96f47ac927b6b81d27adfb8414", kill_on_drop: false }`
[INFO] [stdout] 2bbe6ae290581b26d7046029708bae31aac19f96f47ac927b6b81d27adfb8414
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4aba5e2f190db6335c034e2325f12d5a83e3e783712c7a38a4c758ffd4f09f85
[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" "4aba5e2f190db6335c034e2325f12d5a83e3e783712c7a38a4c758ffd4f09f85", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling genawaiter-macro v0.99.1
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling tui v0.16.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling syn-mid v0.5.3
[INFO] [stderr]    Compiling genawaiter-proc-macro v0.99.1
[INFO] [stderr]    Compiling genawaiter v0.99.1
[INFO] [stderr]    Compiling sorting-visualizer-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0004]: non-exhaustive patterns: `&_` not covered
[INFO] [stdout]   --> src/main.rs:48:27
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     match self.items.items[self.items.state.selected().unwrap()].0 {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ pattern `&_` not covered
[INFO] [stdout]    |
[INFO] [stdout]    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
[INFO] [stdout]    = note: the matched value is of type `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `co`
[INFO] [stdout]   --> src/main.rs:65:29
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Gen::new_boxed(|mut co| {
[INFO] [stdout]    |                             ^^ help: if this is intentional, prefix it with an underscore: `_co`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Gen::new_boxed(|mut co| {
[INFO] [stdout]    |                         ----^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sorting-visualizer-cli` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4aba5e2f190db6335c034e2325f12d5a83e3e783712c7a38a4c758ffd4f09f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aba5e2f190db6335c034e2325f12d5a83e3e783712c7a38a4c758ffd4f09f85", kill_on_drop: false }`
[INFO] [stdout] 4aba5e2f190db6335c034e2325f12d5a83e3e783712c7a38a4c758ffd4f09f85