[INFO] fetching crate membuf 0.0.5...
[INFO] testing membuf-0.0.5 against 1.54.0 for beta-1.55-1
[INFO] extracting crate membuf 0.0.5 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate membuf 0.0.5 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 membuf 0.0.5
[INFO] finished tweaking crates.io crate membuf 0.0.5
[INFO] tweaked toml for crates.io crate membuf 0.0.5 written to /workspace/builds/worker-59/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-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] [stdout] 3658f4c59988dad6da99bb45eb5ee17bbdf3bf17ec50fe762c88db9e24f94984
[INFO] running `Command { std: "docker" "start" "-a" "3658f4c59988dad6da99bb45eb5ee17bbdf3bf17ec50fe762c88db9e24f94984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3658f4c59988dad6da99bb45eb5ee17bbdf3bf17ec50fe762c88db9e24f94984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3658f4c59988dad6da99bb45eb5ee17bbdf3bf17ec50fe762c88db9e24f94984", kill_on_drop: false }`
[INFO] [stdout] 3658f4c59988dad6da99bb45eb5ee17bbdf3bf17ec50fe762c88db9e24f94984
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] d6c7bab75989dc750ddf7d6180be9fcf5bdc0c025a857a0db60ac404e1e55ead
[INFO] running `Command { std: "docker" "start" "-a" "d6c7bab75989dc750ddf7d6180be9fcf5bdc0c025a857a0db60ac404e1e55ead", kill_on_drop: false }`
[INFO] [stderr]    Compiling membuf v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `raw_pointer_derive` has been removed: using derive with raw pointers is ok
[INFO] [stdout]  --> src/lib.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![allow(raw_pointer_derive)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::nonzero`
[INFO] [stdout]   --> src/lib.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use core::nonzero::NonZero;
[INFO] [stdout]    |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::nonzero`
[INFO] [stdout]  --> src/alloc.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::nonzero::NonZero;
[INFO] [stdout]   |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::rt::heap`
[INFO] [stdout]  --> src/alloc.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::rt::heap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ no `heap` in `rt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `oom` in crate `alloc`
[INFO] [stdout]   --> src/alloc.rs:20:31
[INFO] [stdout]    |
[INFO] [stdout] 20 |     if ptr.is_null() { alloc::oom() }
[INFO] [stdout]    |                               ^^^ not found in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `oom` in crate `alloc`
[INFO] [stdout]   --> src/alloc.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 40 |         alloc::oom()
[INFO] [stdout]    |                ^^^ not found in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core, nonzero, alloc, oom, heap_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `T` is never used
[INFO] [stdout]   --> src/unique.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct UniqueBuf<T> {
[INFO] [stdout]    |                      ^ unused parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout]    = help: if you intended `T` to be a const parameter, use `const T: usize` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0425, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `membuf`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d6c7bab75989dc750ddf7d6180be9fcf5bdc0c025a857a0db60ac404e1e55ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c7bab75989dc750ddf7d6180be9fcf5bdc0c025a857a0db60ac404e1e55ead", kill_on_drop: false }`
[INFO] [stdout] d6c7bab75989dc750ddf7d6180be9fcf5bdc0c025a857a0db60ac404e1e55ead
