[INFO] cloning repository https://github.com/MauricevanLeeuwen/seq-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MauricevanLeeuwen/seq-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMauricevanLeeuwen%2Fseq-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMauricevanLeeuwen%2Fseq-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 232f3e2bcb6863e6929fbeda41d763ebe8b8de0a
[INFO] testing MauricevanLeeuwen/seq-rs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMauricevanLeeuwen%2Fseq-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MauricevanLeeuwen/seq-rs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MauricevanLeeuwen/seq-rs
[INFO] finished tweaking git repo https://github.com/MauricevanLeeuwen/seq-rs
[INFO] tweaked toml for git repo https://github.com/MauricevanLeeuwen/seq-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ced15924f9e24b35adeced1041c822fc326ba8501f0a04d332456a012de6343
[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" "2ced15924f9e24b35adeced1041c822fc326ba8501f0a04d332456a012de6343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ced15924f9e24b35adeced1041c822fc326ba8501f0a04d332456a012de6343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ced15924f9e24b35adeced1041c822fc326ba8501f0a04d332456a012de6343", kill_on_drop: false }`
[INFO] [stdout] 2ced15924f9e24b35adeced1041c822fc326ba8501f0a04d332456a012de6343
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c60d24a223ed924f5e6f256b435fa128d7ac74de325cf79044bb3a7dbd5553e2
[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" "c60d24a223ed924f5e6f256b435fa128d7ac74de325cf79044bb3a7dbd5553e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling portmidi v0.2.5
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling structopt v0.3.23
[INFO] [stderr]    Compiling Seq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `color`, `style`
[INFO] [stdout]  --> src/main.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use termion::{clear, color, cursor, style};
[INFO] [stdout]   |                      ^^^^^          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/vm.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/vm.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 27 |     midi_out: portmidi::OutputPort,
[INFO] [stdout]    |                         ^^^^^^^^^^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Instance<'a> {
[INFO] [stdout] 25 |     cells: Vec<Cell>,
[INFO] [stdout] 26 |     notes: Vec<(u8, u8)>,
[INFO] [stdout] 27 |     midi_out: portmidi::OutputPort<'a>,
[INFO] [stdout]    |
[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 E0106`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Seq` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c60d24a223ed924f5e6f256b435fa128d7ac74de325cf79044bb3a7dbd5553e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60d24a223ed924f5e6f256b435fa128d7ac74de325cf79044bb3a7dbd5553e2", kill_on_drop: false }`
[INFO] [stdout] c60d24a223ed924f5e6f256b435fa128d7ac74de325cf79044bb3a7dbd5553e2