[INFO] cloning repository https://github.com/AidoP/bluemetal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AidoP/bluemetal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAidoP%2Fbluemetal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAidoP%2Fbluemetal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f9fe625f0d8064a3eb77069773e9f4dac8d0ecb
[INFO] testing AidoP/bluemetal against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAidoP%2Fbluemetal" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AidoP/bluemetal on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AidoP/bluemetal
[INFO] finished tweaking git repo https://github.com/AidoP/bluemetal
[INFO] tweaked toml for git repo https://github.com/AidoP/bluemetal written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/AidoP/bluemetal already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c59ab4d3a60d2a95ff63e9aa46c946966b4d8257b592a738bc1abc8a2028159b
[INFO] running `Command { std: "docker" "start" "-a" "c59ab4d3a60d2a95ff63e9aa46c946966b4d8257b592a738bc1abc8a2028159b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c59ab4d3a60d2a95ff63e9aa46c946966b4d8257b592a738bc1abc8a2028159b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c59ab4d3a60d2a95ff63e9aa46c946966b4d8257b592a738bc1abc8a2028159b", kill_on_drop: false }`
[INFO] [stdout] c59ab4d3a60d2a95ff63e9aa46c946966b4d8257b592a738bc1abc8a2028159b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20d2b707492a508181b92444a2505e22ae72b5735c842cc93a2fc8237996d4ce
[INFO] running `Command { std: "docker" "start" "-a" "20d2b707492a508181b92444a2505e22ae72b5735c842cc93a2fc8237996d4ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling bluemetal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/parse.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashSet, HashMap, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs::File`, `io::Read`
[INFO] [stdout]  --> src/lib.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{fs::File, io::Read};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]   --> src/parse.rs:89:35
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn parse(from: &mut &str, unit: &mut Unit) -> Result<(Vec<String>, Self), ParseError> {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_unit`
[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/parse.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let mut modules = vec![];
[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] warning: private type `Identifier` in public interface (error E0446)
[INFO] [stdout]    --> src/parse.rs:279:15
[INFO] [stdout]     |
[INFO] [stdout] 279 |     Structure(Identifier),
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `named`
[INFO] [stdout]   --> src/parse.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn named(name: &str) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Global`
[INFO] [stdout]   --> src/parse.rs:78:10
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub enum Global {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `named`
[INFO] [stdout]    --> src/parse.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 |     fn named(name: &str) -> Self {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Fn`
[INFO] [stdout]    --> src/parse.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 263 |     Fn,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Keyword` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/parse.rs:261:10
[INFO] [stdout]     |
[INFO] [stdout] 261 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Struct`
[INFO] [stdout]    --> src/parse.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 264 |     Struct,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Keyword` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/parse.rs:261:10
[INFO] [stdout]     |
[INFO] [stdout] 261 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expressions`
[INFO] [stdout]    --> src/parse.rs:346:5
[INFO] [stdout]     |
[INFO] [stdout] 346 |     expressions: Vec<Box<dyn Expression>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/parse.rs:343:10
[INFO] [stdout]     |
[INFO] [stdout] 343 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `args`
[INFO] [stdout]    --> src/parse.rs:374:5
[INFO] [stdout]     |
[INFO] [stdout] 374 |     args: Vec<TypedBinding>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/parse.rs:370:10
[INFO] [stdout]     |
[INFO] [stdout] 370 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `return_type`
[INFO] [stdout]    --> src/parse.rs:375:5
[INFO] [stdout]     |
[INFO] [stdout] 375 |     return_type: Option<Identifier>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/parse.rs:370:10
[INFO] [stdout]     |
[INFO] [stdout] 370 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block`
[INFO] [stdout]    --> src/parse.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 |     block: Option<Block>
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/parse.rs:370:10
[INFO] [stdout]     |
[INFO] [stdout] 370 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_split_once)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `str_split_once` has been stable since 1.52.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_split_once)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bluemetal` due to 2 previous errors; 15 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "20d2b707492a508181b92444a2505e22ae72b5735c842cc93a2fc8237996d4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d2b707492a508181b92444a2505e22ae72b5735c842cc93a2fc8237996d4ce", kill_on_drop: false }`
[INFO] [stdout] 20d2b707492a508181b92444a2505e22ae72b5735c842cc93a2fc8237996d4ce