[INFO] fetching crate alloc-compose 0.5.0...
[INFO] testing alloc-compose-0.5.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate alloc-compose 0.5.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate alloc-compose 0.5.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alloc-compose 0.5.0
[INFO] finished tweaking crates.io crate alloc-compose 0.5.0
[INFO] tweaked toml for crates.io crate alloc-compose 0.5.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 2d4f62353f65151500e929807d0e4303b0bb4d47b87b1b7e38efc74537d09e8d
[INFO] running `Command { std: "docker" "start" "-a" "2d4f62353f65151500e929807d0e4303b0bb4d47b87b1b7e38efc74537d09e8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d4f62353f65151500e929807d0e4303b0bb4d47b87b1b7e38efc74537d09e8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d4f62353f65151500e929807d0e4303b0bb4d47b87b1b7e38efc74537d09e8d", kill_on_drop: false }`
[INFO] [stdout] 2d4f62353f65151500e929807d0e4303b0bb4d47b87b1b7e38efc74537d09e8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8f7d0a9dff8b072f5cd92ef4b2e808e85bd5e5af2eb1f02102a01e9d9aa7ac7
[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" "c8f7d0a9dff8b072f5cd92ef4b2e808e85bd5e5af2eb1f02102a01e9d9aa7ac7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling alloc-compose v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     const_fn,
[INFO] [stdout]    |     ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]  --> src/stats.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     alloc::{AllocErr, Layout},
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocErr`, `core::alloc::AllocRef`
[INFO] [stdout]  --> src/helper.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     alloc::{AllocErr, AllocRef, Layout},
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocErr`, `core::alloc::AllocRef`
[INFO] [stdout]  --> src/affix.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     alloc::{AllocErr, AllocRef, Layout},
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]  --> src/callback_ref.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     alloc::{AllocErr, Layout},
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocErr`, `core::alloc::AllocRef`
[INFO] [stdout]  --> src/chunk.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     alloc::{AllocErr, AllocRef, Layout},
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocErr`, `core::alloc::AllocRef`
[INFO] [stdout]  --> src/fallback.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     alloc::{AllocErr, AllocRef, Layout},
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocErr`, `core::alloc::AllocRef`
[INFO] [stdout]  --> src/null.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     alloc::{AllocErr, AllocRef, Layout},
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocErr`, `core::alloc::AllocRef`
[INFO] [stdout]  --> src/proxy.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     alloc::{AllocErr, AllocRef, Layout},
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocErr`, `core::alloc::AllocRef`
[INFO] [stdout]  --> src/region.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     alloc::{AllocErr, AllocRef, Layout},
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocErr`, `core::alloc::AllocRef`
[INFO] [stdout]  --> src/segregate.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     alloc::{AllocErr, AllocRef, Layout},
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocErr` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]   --> src/lib.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |     alloc::{AllocErr, Layout},
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             no `AllocErr` in `alloc`
[INFO] [stdout]    |             help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / #![feature(
[INFO] [stdout] 7  | |     allocator_api,
[INFO] [stdout] 8  | |     alloc_layout_extra,
[INFO] [stdout] 9  | |     const_checked_int_methods,
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     slice_ptr_len
[INFO] [stdout] 20 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `alloc-compose`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c8f7d0a9dff8b072f5cd92ef4b2e808e85bd5e5af2eb1f02102a01e9d9aa7ac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8f7d0a9dff8b072f5cd92ef4b2e808e85bd5e5af2eb1f02102a01e9d9aa7ac7", kill_on_drop: false }`
[INFO] [stdout] c8f7d0a9dff8b072f5cd92ef4b2e808e85bd5e5af2eb1f02102a01e9d9aa7ac7
