[INFO] fetching crate strong_rc 0.1.4... [INFO] testing strong_rc-0.1.4 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] extracting crate strong_rc 0.1.4 into /workspace/builds/worker-60/source [INFO] validating manifest of crates.io crate strong_rc 0.1.4 on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate strong_rc 0.1.4 [INFO] finished tweaking crates.io crate strong_rc 0.1.4 [INFO] tweaked toml for crates.io crate strong_rc 0.1.4 written to /workspace/builds/worker-60/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 37894f7bca7c43f3098ca7fcbfbc8effd9a5460f390559bad8c7f61feced738a [INFO] running `Command { std: "docker" "start" "-a" "37894f7bca7c43f3098ca7fcbfbc8effd9a5460f390559bad8c7f61feced738a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "37894f7bca7c43f3098ca7fcbfbc8effd9a5460f390559bad8c7f61feced738a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "37894f7bca7c43f3098ca7fcbfbc8effd9a5460f390559bad8c7f61feced738a", kill_on_drop: false }` [INFO] [stdout] 37894f7bca7c43f3098ca7fcbfbc8effd9a5460f390559bad8c7f61feced738a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 057be02ea5d4ba470e9c75f350da3f0ad585c541b6e66ade3b6ed34f0c7c7fcc [INFO] running `Command { std: "docker" "start" "-a" "057be02ea5d4ba470e9c75f350da3f0ad585c541b6e66ade3b6ed34f0c7c7fcc", kill_on_drop: false }` [INFO] [stderr] Compiling strong_rc v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:122:12 [INFO] [stdout] | [INFO] [stdout] 122 | #![feature(optin_builtin_traits)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: renamed to `auto_traits` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `alloc::heap` [INFO] [stdout] --> src/lib.rs:128:5 [INFO] [stdout] | [INFO] [stdout] 128 | use alloc::heap; [INFO] [stdout] | ^^^^^^^^^^^ no `heap` in the root [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `std::ptr::Shared` [INFO] [stdout] --> src/lib.rs:139:22 [INFO] [stdout] | [INFO] [stdout] 139 | use std::ptr::{self, Shared}; [INFO] [stdout] | ^^^^^^ no `Shared` in `ptr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: negative trait bounds are not yet fully implemented; use marker types for now [INFO] [stdout] --> src/lib.rs:187:17 [INFO] [stdout] | [INFO] [stdout] 187 | impl !marker::Send for Rc {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #68318 for more information [INFO] [stdout] = help: add `#![feature(negative_impls)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: negative trait bounds are not yet fully implemented; use marker types for now [INFO] [stdout] --> src/lib.rs:188:17 [INFO] [stdout] | [INFO] [stdout] 188 | impl !marker::Sync for Rc {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #68318 for more information [INFO] [stdout] = help: add `#![feature(negative_impls)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:124:12 [INFO] [stdout] | [INFO] [stdout] 124 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0374]: the trait `CoerceUnsized` may only be implemented for a coercion between structures with one field being coerced, none found [INFO] [stdout] --> src/lib.rs:190:1 [INFO] [stdout] | [INFO] [stdout] 190 | / impl CoerceUnsized> for Rc [INFO] [stdout] 191 | | where T: ?Sized + Unsize, [INFO] [stdout] 192 | | U: ?Sized {} [INFO] [stdout] | |__________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0374, E0432, E0557, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0374`. [INFO] [stdout] [INFO] [stderr] error: could not compile `strong_rc` due to 7 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "057be02ea5d4ba470e9c75f350da3f0ad585c541b6e66ade3b6ed34f0c7c7fcc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "057be02ea5d4ba470e9c75f350da3f0ad585c541b6e66ade3b6ed34f0c7c7fcc", kill_on_drop: false }` [INFO] [stdout] 057be02ea5d4ba470e9c75f350da3f0ad585c541b6e66ade3b6ed34f0c7c7fcc