[INFO] cloning repository https://github.com/scratchyone/matrix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scratchyone/matrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Fmatrix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Fmatrix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 456e6f7760dee638bffccc12e4cd14f493bf3d9b
[INFO] checking scratchyone/matrix against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Fmatrix" "/workspace/builds/worker-70/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-70/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scratchyone/matrix on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scratchyone/matrix
[INFO] finished tweaking git repo https://github.com/scratchyone/matrix
[INFO] tweaked toml for git repo https://github.com/scratchyone/matrix written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] crate git repo https://github.com/scratchyone/matrix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossterm_winapi v0.7.0
[INFO] [stderr]   Downloaded crossterm v0.19.0
[INFO] [stderr]   Downloaded running-average v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3fd5d80fd0ee66bb68ca3d9e120bb0cf2c339811ccf531afeff480f66caf977
[INFO] running `Command { std: "docker" "start" "-a" "b3fd5d80fd0ee66bb68ca3d9e120bb0cf2c339811ccf531afeff480f66caf977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3fd5d80fd0ee66bb68ca3d9e120bb0cf2c339811ccf531afeff480f66caf977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3fd5d80fd0ee66bb68ca3d9e120bb0cf2c339811ccf531afeff480f66caf977", kill_on_drop: false }`
[INFO] [stdout] b3fd5d80fd0ee66bb68ca3d9e120bb0cf2c339811ccf531afeff480f66caf977
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 993b9c8e05d991c1c33c9c5d92480fdf45595675f209a7b44252e187dc7f0c3c
[INFO] running `Command { std: "docker" "start" "-a" "993b9c8e05d991c1c33c9c5d92480fdf45595675f209a7b44252e187dc7f0c3c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   libc v0.2.86: align
[INFO] [stderr]   libc v0.2.86 (as host dependency): align, default, std
[INFO] [stderr] 
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking running-average v0.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking matrix v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (5 fixes)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     loop {
[INFO] [stdout] 168 | |         let frame_time_ns = last_frame.elapsed().as_nanos();
[INFO] [stdout] 169 | |         let frame_time_ms = last_frame.elapsed().as_millis();
[INFO] [stdout] 170 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 261 | |         }
[INFO] [stdout] 262 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 263 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     loop {
[INFO] [stdout] 168 | |         let frame_time_ns = last_frame.elapsed().as_nanos();
[INFO] [stdout] 169 | |         let frame_time_ms = last_frame.elapsed().as_millis();
[INFO] [stdout] 170 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 261 | |         }
[INFO] [stdout] 262 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 263 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.17s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]     Checking matrix v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     loop {
[INFO] [stdout] 168 | |         let frame_time_ns = last_frame.elapsed().as_nanos();
[INFO] [stdout] 169 | |         let frame_time_ms = last_frame.elapsed().as_millis();
[INFO] [stdout] 170 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 261 | |         }
[INFO] [stdout] 262 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 263 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     loop {
[INFO] [stdout] 168 | |         let frame_time_ns = last_frame.elapsed().as_nanos();
[INFO] [stdout] 169 | |         let frame_time_ms = last_frame.elapsed().as_millis();
[INFO] [stdout] 170 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 261 | |         }
[INFO] [stdout] 262 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 263 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `Command { std: "docker" "inspect" "993b9c8e05d991c1c33c9c5d92480fdf45595675f209a7b44252e187dc7f0c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "993b9c8e05d991c1c33c9c5d92480fdf45595675f209a7b44252e187dc7f0c3c", kill_on_drop: false }`
[INFO] [stdout] 993b9c8e05d991c1c33c9c5d92480fdf45595675f209a7b44252e187dc7f0c3c