[INFO] cloning repository https://github.com/luctius/hd44780_menu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luctius/hd44780_menu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluctius%2Fhd44780_menu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluctius%2Fhd44780_menu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ab9d396991586b337999d8a96b127c7fa42b1ca
[INFO] testing luctius/hd44780_menu against beta-2021-05-08 for beta-1.53-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluctius%2Fhd44780_menu" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luctius/hd44780_menu on toolchain beta-2021-05-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-05-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luctius/hd44780_menu
[INFO] finished tweaking git repo https://github.com/luctius/hd44780_menu
[INFO] tweaked toml for git repo https://github.com/luctius/hd44780_menu written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/luctius/hd44780_menu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-05-08" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/luctius/hd44780-driver.git`
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-05-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/luctius/hd44780-driver.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-05-08" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hash32 v0.2.1
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded cortex-m v0.7.2
[INFO] [stderr]   Downloaded heapless v0.7.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.5
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-05-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8a752047eef0a2628e94f6b1fd383c1086710f8bc6b3a1a3360646d24b6469a
[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" "d8a752047eef0a2628e94f6b1fd383c1086710f8bc6b3a1a3360646d24b6469a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8a752047eef0a2628e94f6b1fd383c1086710f8bc6b3a1a3360646d24b6469a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8a752047eef0a2628e94f6b1fd383c1086710f8bc6b3a1a3360646d24b6469a", kill_on_drop: false }`
[INFO] [stdout] d8a752047eef0a2628e94f6b1fd383c1086710f8bc6b3a1a3360646d24b6469a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-05-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f090bfbc8cf42feb9f8ae85795fec2bffbf6c4a30bbe7eb961875dbcb71c973
[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" "0f090bfbc8cf42feb9f8ae85795fec2bffbf6c4a30bbe7eb961875dbcb71c973", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling heapless v0.7.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.5
[INFO] [stderr]    Compiling hd44780-driver v0.3.0 (https://github.com/luctius/hd44780-driver.git?branch=master#b0e9b10d)
[INFO] [stderr]    Compiling hd44780-menu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `heapless::consts`, `heapless::consts`, `heapless::consts`
[INFO] [stdout]   --> src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     consts::U12,
[INFO] [stdout]    |     ^^^^^^ could not find `consts` in `heapless`
[INFO] [stdout] 35 |     consts::U18,
[INFO] [stdout]    |     ^^^^^^ could not find `consts` in `heapless`
[INFO] [stdout] 36 |     consts::U20,
[INFO] [stdout]    |     ^^^^^^ could not find `consts` in `heapless`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0747]: unresolved item provided when a constant was expected
[INFO] [stdout]    --> src/lib.rs:216:31
[INFO] [stdout]     |
[INFO] [stdout] 216 |     previous_idxs: Vec<usize, U12>,
[INFO] [stdout]     |                               ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this generic argument was intended as a const parameter, surround it with braces
[INFO] [stdout]     |
[INFO] [stdout] 216 |     previous_idxs: Vec<usize, { U12 }>,
[INFO] [stdout]     |                               ^     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0747]: unresolved item provided when a constant was expected
[INFO] [stdout]    --> src/lib.rs:153:54
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn to_string(&self, ctx: &mut Context) -> String<U20> {
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this generic argument was intended as a const parameter, surround it with braces
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn to_string(&self, ctx: &mut Context) -> String<{ U20 }> {
[INFO] [stdout]     |                                                      ^     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0747]: unresolved item provided when a constant was expected
[INFO] [stdout]    --> src/lib.rs:177:55
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn to_display(&self, ctx: &mut Context) -> String<U20> {
[INFO] [stdout]     |                                                       ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this generic argument was intended as a const parameter, surround it with braces
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn to_display(&self, ctx: &mut Context) -> String<{ U20 }> {
[INFO] [stdout]     |                                                       ^     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0747.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hd44780-menu`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0f090bfbc8cf42feb9f8ae85795fec2bffbf6c4a30bbe7eb961875dbcb71c973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f090bfbc8cf42feb9f8ae85795fec2bffbf6c4a30bbe7eb961875dbcb71c973", kill_on_drop: false }`
[INFO] [stdout] 0f090bfbc8cf42feb9f8ae85795fec2bffbf6c4a30bbe7eb961875dbcb71c973