[INFO] fetching crate fallible-option 0.1.3...
[INFO] testing fallible-option-0.1.3 against 1.75.0 for beta-1.76-1
[INFO] extracting crate fallible-option 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate fallible-option 0.1.3 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fallible-option 0.1.3
[INFO] finished tweaking crates.io crate fallible-option 0.1.3
[INFO] tweaked toml for crates.io crate fallible-option 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe8267d1764bc4f7db3db1ca51b6aa5fd951d4dd2a63762a5232edf4ae34b50b
[INFO] running `Command { std: "docker" "start" "-a" "fe8267d1764bc4f7db3db1ca51b6aa5fd951d4dd2a63762a5232edf4ae34b50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe8267d1764bc4f7db3db1ca51b6aa5fd951d4dd2a63762a5232edf4ae34b50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe8267d1764bc4f7db3db1ca51b6aa5fd951d4dd2a63762a5232edf4ae34b50b", kill_on_drop: false }`
[INFO] [stdout] fe8267d1764bc4f7db3db1ca51b6aa5fd951d4dd2a63762a5232edf4ae34b50b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dbeae649f56335b7ceaa6b4918163ee79f81b1bb87fd3014cfe8bd276bd7a67
[INFO] running `Command { std: "docker" "start" "-a" "8dbeae649f56335b7ceaa6b4918163ee79f81b1bb87fd3014cfe8bd276bd7a67", kill_on_drop: false }`
[INFO] [stderr]    Compiling fallible-option v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:175:1
[INFO] [stdout]     |
[INFO] [stdout] 175 | #![feature(try_trait_v2)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:176:1
[INFO] [stdout]     |
[INFO] [stdout] 176 | #![feature(const_trait_impl)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:177:1
[INFO] [stdout]     |
[INFO] [stdout] 177 | #![feature(const_mut_refs)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:178:1
[INFO] [stdout]     |
[INFO] [stdout] 178 | #![feature(const_replace)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information
[INFO] [stdout]    --> src/lib.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 158 |     private_in_public,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 175 | #![feature(try_trait_v2)]
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | #![feature(const_replace)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ~const can only be applied to `#[const_trait]` traits
[INFO] [stdout]    --> src/lib.rs:451:15
[INFO] [stdout]     |
[INFO] [stdout] 451 |     E: ~const Clone,
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ~const can only be applied to `#[const_trait]` traits
[INFO] [stdout]    --> src/lib.rs:481:15
[INFO] [stdout]     |
[INFO] [stdout] 481 |     E: ~const Clone,
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ~const can only be applied to `#[const_trait]` traits
[INFO] [stdout]    --> src/lib.rs:599:15
[INFO] [stdout]     |
[INFO] [stdout] 599 |     E: ~const Clone + ~const Destruct,
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ~const can only be applied to `#[const_trait]` traits
[INFO] [stdout]    --> src/lib.rs:211:19
[INFO] [stdout]     |
[INFO] [stdout] 211 |         E: ~const Deref,
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ~const can only be applied to `#[const_trait]` traits
[INFO] [stdout]    --> src/lib.rs:239:19
[INFO] [stdout]     |
[INFO] [stdout] 239 |         E: ~const DerefMut,
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ~const can only be applied to `#[const_trait]` traits
[INFO] [stdout]    --> src/lib.rs:339:37
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub const fn contains<U: ~const PartialEq<E>>(&self, x: &U) -> bool {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ~const can only be applied to `#[const_trait]` traits
[INFO] [stdout]    --> src/lib.rs:359:19
[INFO] [stdout]     |
[INFO] [stdout] 359 |         F: ~const FnOnce(E) -> U,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fallible-option` (lib) due to 14 previous errors; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8dbeae649f56335b7ceaa6b4918163ee79f81b1bb87fd3014cfe8bd276bd7a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dbeae649f56335b7ceaa6b4918163ee79f81b1bb87fd3014cfe8bd276bd7a67", kill_on_drop: false }`
[INFO] [stdout] 8dbeae649f56335b7ceaa6b4918163ee79f81b1bb87fd3014cfe8bd276bd7a67
