[INFO] cloning repository https://github.com/camelid/type-layout
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/camelid/type-layout" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamelid%2Ftype-layout", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamelid%2Ftype-layout'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 349ed10fcf3bb3c62c684c4a0edfbdbf203f2274
[INFO] testing camelid/type-layout against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamelid%2Ftype-layout" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/camelid/type-layout on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/camelid/type-layout
[INFO] finished tweaking git repo https://github.com/camelid/type-layout
[INFO] tweaked toml for git repo https://github.com/camelid/type-layout written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/camelid/type-layout already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20c74288fcc25f21dba2c78baa9fa058ca43e2c51aa9a369faa7f63186b70222
[INFO] running `Command { std: "docker" "start" "-a" "20c74288fcc25f21dba2c78baa9fa058ca43e2c51aa9a369faa7f63186b70222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20c74288fcc25f21dba2c78baa9fa058ca43e2c51aa9a369faa7f63186b70222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c74288fcc25f21dba2c78baa9fa058ca43e2c51aa9a369faa7f63186b70222", kill_on_drop: false }`
[INFO] [stdout] 20c74288fcc25f21dba2c78baa9fa058ca43e2c51aa9a369faa7f63186b70222
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 103fa7b0e028e6565302ae7d0a3c66514928aaa4c670acc45f58bccefd7b56f8
[INFO] running `Command { std: "docker" "start" "-a" "103fa7b0e028e6565302ae7d0a3c66514928aaa4c670acc45f58bccefd7b56f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling type-layout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `niches`
[INFO] [stdout]    --> src/layout.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn niches(&self) -> IntNiches {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Deref`
[INFO] [stdout]   --> src/lir.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Deref(Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/lir.rs:8:10
[INFO] [stdout]    |
[INFO] [stdout] 8  | #[derive(Debug, Clone, PartialEq, Eq)]
[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 beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse)]
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `type-layout` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "103fa7b0e028e6565302ae7d0a3c66514928aaa4c670acc45f58bccefd7b56f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "103fa7b0e028e6565302ae7d0a3c66514928aaa4c670acc45f58bccefd7b56f8", kill_on_drop: false }`
[INFO] [stdout] 103fa7b0e028e6565302ae7d0a3c66514928aaa4c670acc45f58bccefd7b56f8