[INFO] fetching crate syr 0.1.0...
[INFO] testing syr-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate syr 0.1.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate syr 0.1.0 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 syr 0.1.0
[INFO] finished tweaking crates.io crate syr 0.1.0
[INFO] tweaked toml for crates.io crate syr 0.1.0 written to /workspace/builds/worker-27/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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] f2b87b55d2588d34a33ce381770b67722bf9703d83618de473d36784afbedf9a
[INFO] running `Command { std: "docker" "start" "-a" "f2b87b55d2588d34a33ce381770b67722bf9703d83618de473d36784afbedf9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2b87b55d2588d34a33ce381770b67722bf9703d83618de473d36784afbedf9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2b87b55d2588d34a33ce381770b67722bf9703d83618de473d36784afbedf9a", kill_on_drop: false }`
[INFO] [stdout] f2b87b55d2588d34a33ce381770b67722bf9703d83618de473d36784afbedf9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 93c3b8844e74e752fc300b8cdcc2e0b9d2c2e010580bb65279866e53bd566f5c
[INFO] running `Command { std: "docker" "start" "-a" "93c3b8844e74e752fc300b8cdcc2e0b9d2c2e010580bb65279866e53bd566f5c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(unsafe_no_drop_flag)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `alloc::heap`
[INFO] [stdout]  --> src/matrix/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::heap;
[INFO] [stdout]   |     ^^^^^^^^^^^ no `heap` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::num::Zero`, `std::num::One`
[INFO] [stdout]  --> src/matrix/mod.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::num::{Zero, One};
[INFO] [stdout]   |                ^^^^  ^^^ no `One` in `num`
[INFO] [stdout]   |                |
[INFO] [stdout]   |                no `Zero` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `unsafe_no_drop_flag` in this scope
[INFO] [stdout]   --> src/matrix/mod.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[unsafe_no_drop_flag] // Omit the drop flag byte, we use rows as the flag
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `oom` in crate `alloc`
[INFO] [stdout]   --> src/matrix/mod.rs:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 |         if ptr.is_null() { alloc::oom() }
[INFO] [stdout]    |                                   ^^^ not found in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `POST_DROP_USIZE` in module `mem`
[INFO] [stdout]    --> src/matrix/mod.rs:134:34
[INFO] [stdout]     |
[INFO] [stdout] 134 |         if self.num_rows != mem::POST_DROP_USIZE {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^ not found in `mem`
[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(alloc)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(filling_drop)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(unique)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(unsafe_no_drop_flag)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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(zero_one)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stdout]  --> src/matrix/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::ptr::Unique;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stdout]   --> src/matrix/mod.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |     ptr: Unique<T>,
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stdout]   --> src/matrix/mod.rs:36:49
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let ptr = unsafe { heap::allocate(size, mem::min_align_of::<T>()) };
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stdout]   --> src/matrix/mod.rs:41:22
[INFO] [stdout]    |
[INFO] [stdout] 41 |                 ptr: Unique::new(ptr as *mut T),
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stdout]    --> src/matrix/mod.rs:142:34
[INFO] [stdout]     |
[INFO] [stdout] 142 | ...                   mem::min_align_of::<T>())
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 15 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0554, E0557, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syr`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "93c3b8844e74e752fc300b8cdcc2e0b9d2c2e010580bb65279866e53bd566f5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c3b8844e74e752fc300b8cdcc2e0b9d2c2e010580bb65279866e53bd566f5c", kill_on_drop: false }`
[INFO] [stdout] 93c3b8844e74e752fc300b8cdcc2e0b9d2c2e010580bb65279866e53bd566f5c
