[INFO] fetching crate strong_rc 0.1.4... [INFO] checking strong_rc-0.1.4 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174 [INFO] extracting crate strong_rc 0.1.4 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate strong_rc 0.1.4 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 926271cf69d74c4a4d4a3cf456d753ac828a346caf81f1f598cd7a3a932549ec [INFO] running `Command { std: "docker" "start" "-a" "926271cf69d74c4a4d4a3cf456d753ac828a346caf81f1f598cd7a3a932549ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "926271cf69d74c4a4d4a3cf456d753ac828a346caf81f1f598cd7a3a932549ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "926271cf69d74c4a4d4a3cf456d753ac828a346caf81f1f598cd7a3a932549ec", kill_on_drop: false }` [INFO] [stdout] 926271cf69d74c4a4d4a3cf456d753ac828a346caf81f1f598cd7a3a932549ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 96d4e032c7e14f08ee221d171079713100200e39e4db03f11340496e7e69b6e4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "96d4e032c7e14f08ee221d171079713100200e39e4db03f11340496e7e69b6e4", kill_on_drop: false }` [INFO] [stderr] Checking strong_rc v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Checking rand v0.4.6 [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` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "96d4e032c7e14f08ee221d171079713100200e39e4db03f11340496e7e69b6e4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96d4e032c7e14f08ee221d171079713100200e39e4db03f11340496e7e69b6e4", kill_on_drop: false }` [INFO] [stdout] 96d4e032c7e14f08ee221d171079713100200e39e4db03f11340496e7e69b6e4