[INFO] fetching crate cluConstConcat 1.2.2... [INFO] checking cluConstConcat-1.2.2 against try#1463461488056994d1b84e8b752e7c11c7fae7aa for pr-154205 [INFO] extracting crate cluConstConcat 1.2.2 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate cluConstConcat 1.2.2 [INFO] finished tweaking crates.io crate cluConstConcat 1.2.2 [INFO] tweaked toml for crates.io crate cluConstConcat 1.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate cluConstConcat 1.2.2 on toolchain 1463461488056994d1b84e8b752e7c11c7fae7aa [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "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" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0bccf25561011afa33d52d79fb8f9957f917c1dede0fa8098a00c1974863cb91 [INFO] running `Command { std: "docker" "start" "-a" "0bccf25561011afa33d52d79fb8f9957f917c1dede0fa8098a00c1974863cb91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0bccf25561011afa33d52d79fb8f9957f917c1dede0fa8098a00c1974863cb91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0bccf25561011afa33d52d79fb8f9957f917c1dede0fa8098a00c1974863cb91", kill_on_drop: false }` [INFO] [stdout] 0bccf25561011afa33d52d79fb8f9957f917c1dede0fa8098a00c1974863cb91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9f613fe255759e5258a75011ecaa83cb6ef17f06d1ae09e032b6dd00d0158f7e [INFO] running `Command { std: "docker" "start" "-a" "9f613fe255759e5258a75011ecaa83cb6ef17f06d1ae09e032b6dd00d0158f7e", kill_on_drop: false }` [INFO] [stderr] Checking cluConstConcat v1.2.2 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:186:12 [INFO] [stdout] | [INFO] [stdout] 186 | #![feature(untagged_unions)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.64.0; see for more information [INFO] [stdout] = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | #![feature(const_fn)] [INFO] [stdout] | ^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.54.0; see for more information [INFO] [stdout] = note: split into finer-grained feature gates [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:186:12 [INFO] [stdout] | [INFO] [stdout] 186 | #![feature(untagged_unions)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.64.0; see for more information [INFO] [stdout] = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | #![feature(const_fn)] [INFO] [stdout] | ^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.54.0; see for more information [INFO] [stdout] = note: split into finer-grained feature gates [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unknown lint: `unions_with_drop_fields` [INFO] [stdout] --> src/lib.rs:193:9 [INFO] [stdout] | [INFO] [stdout] 193 | #[allow(unions_with_drop_fields)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unknown_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_fn_union` has been stable since 1.56.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:185:12 [INFO] [stdout] | [INFO] [stdout] 185 | #![feature(const_fn_union)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_raw_ptr_deref` has been stable since 1.58.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:190:12 [INFO] [stdout] | [INFO] [stdout] 190 | #![feature(const_raw_ptr_deref)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cluConstConcat` (lib test) due to 4 previous errors; 5 warnings emitted [INFO] [stdout] warning: the feature `const_slice_len` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:188:12 [INFO] [stdout] | [INFO] [stdout] 188 | #![feature(const_slice_len)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: the feature `const_str_len` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:191:12 [INFO] [stdout] | [INFO] [stdout] 191 | #![feature(const_str_len)] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cluConstConcat` (lib) due to 4 previous errors; 5 warnings emitted [INFO] [stdout] error[E0635]: unknown feature `const_str_as_bytes` [INFO] [stdout] --> src/lib.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 189 | #![feature(const_str_as_bytes)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: there is a feature with a similar name: `const_str_as_mut` [INFO] [stdout] | [INFO] [stdout] 189 - #![feature(const_str_as_bytes)] [INFO] [stdout] 189 + #![feature(const_str_as_mut)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union [INFO] [stdout] --> src/lib.rs:195:2 [INFO] [stdout] | [INFO] [stdout] 195 | value: Value, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>` [INFO] [stdout] help: wrap the field type in `ManuallyDrop<...>` [INFO] [stdout] | [INFO] [stdout] 195 | value: std::mem::ManuallyDrop, [INFO] [stdout] | +++++++++++++++++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unknown lint: `unions_with_drop_fields` [INFO] [stdout] --> src/lib.rs:193:9 [INFO] [stdout] | [INFO] [stdout] 193 | #[allow(unions_with_drop_fields)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unknown_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_fn_union` has been stable since 1.56.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:185:12 [INFO] [stdout] | [INFO] [stdout] 185 | #![feature(const_fn_union)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_raw_ptr_deref` has been stable since 1.58.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:190:12 [INFO] [stdout] | [INFO] [stdout] 190 | #![feature(const_raw_ptr_deref)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_slice_len` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:188:12 [INFO] [stdout] | [INFO] [stdout] 188 | #![feature(const_slice_len)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_str_len` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:191:12 [INFO] [stdout] | [INFO] [stdout] 191 | #![feature(const_str_len)] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `const_str_as_bytes` [INFO] [stdout] --> src/lib.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 189 | #![feature(const_str_as_bytes)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: there is a feature with a similar name: `const_str_as_mut` [INFO] [stdout] | [INFO] [stdout] 189 - #![feature(const_str_as_bytes)] [INFO] [stdout] 189 + #![feature(const_str_as_mut)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union [INFO] [stdout] --> src/lib.rs:195:2 [INFO] [stdout] | [INFO] [stdout] 195 | value: Value, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>` [INFO] [stdout] help: wrap the field type in `ManuallyDrop<...>` [INFO] [stdout] | [INFO] [stdout] 195 | value: std::mem::ManuallyDrop, [INFO] [stdout] | +++++++++++++++++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0557, E0635, E0740. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0557, E0635, E0740. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "9f613fe255759e5258a75011ecaa83cb6ef17f06d1ae09e032b6dd00d0158f7e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f613fe255759e5258a75011ecaa83cb6ef17f06d1ae09e032b6dd00d0158f7e", kill_on_drop: false }` [INFO] [stdout] 9f613fe255759e5258a75011ecaa83cb6ef17f06d1ae09e032b6dd00d0158f7e