[INFO] crate popcorn-blas 0.1.0 is already in cache
[INFO] extracting crate popcorn-blas 0.1.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/popcorn-blas/0.1.0
[INFO] extracting crate popcorn-blas 0.1.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/popcorn-blas/0.1.0
[INFO] validating manifest of popcorn-blas-0.1.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of popcorn-blas-0.1.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing popcorn-blas-0.1.0
[INFO] removed path dependency popcorn from popcorn-blas-0.1.0
[INFO] finished frobbing popcorn-blas-0.1.0
[INFO] frobbed toml for popcorn-blas-0.1.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/popcorn-blas/0.1.0/Cargo.toml
[INFO] started frobbing popcorn-blas-0.1.0
[INFO] removed path dependency popcorn from popcorn-blas-0.1.0
[INFO] finished frobbing popcorn-blas-0.1.0
[INFO] frobbed toml for popcorn-blas-0.1.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/popcorn-blas/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking popcorn-blas-0.1.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/popcorn-blas/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8e2b305c4fe001a6d3733d3c99f80f4d6ed6be45e36d0e98557e7609fb8ce67a
[INFO] running `"docker" "start" "-a" "8e2b305c4fe001a6d3733d3c99f80f4d6ed6be45e36d0e98557e7609fb8ce67a"`
[INFO] [stderr] warning: unused manifest key: package.keyworkds
[INFO] [stderr]     Checking blas-sys v0.6.9
[INFO] [stderr]     Checking popcorn v0.1.0
[INFO] [stderr]     Checking popcorn-blas v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: patterns aren't allowed in methods without bodies
[INFO] [stderr]   --> src/operation.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 |                mut shape_c: Buffer<usize>,
[INFO] [stderr]    |                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in methods without bodies
[INFO] [stderr]   --> src/operation.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |                mut c: Buffer<T>) ->
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/operation.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |       Box<Future<Item=(Buffer<usize>, Buffer<T>, // A
[INFO] [stderr]    |  _________^
[INFO] [stderr] 13 | |                      Buffer<usize>, Buffer<T>, // B
[INFO] [stderr] 14 | |                      Buffer<usize>, Buffer<T>), Error=Error>>; // Result
[INFO] [stderr]    | |____________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Box<dyn Future<Item=(Buffer<usize>, Buffer<T>, // A
[INFO] [stderr] 13 |                      Buffer<usize>, Buffer<T>, // B
[INFO] [stderr] 14 |                      Buffer<usize>, Buffer<T>), Error=Error>>; // Result
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IntoFuture`
[INFO] [stderr]  --> src/frameworks/native/mod.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::{Future, IntoFuture};
[INFO] [stderr]   |                       ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/frameworks/native/mod.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use popcorn::buffer::{self, Buffer, BufferDevice, Error};
[INFO] [stderr]   |                       ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/frameworks/native/mod.rs:22:66
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<T: Dot + Copy + Sized + Send + 'static> DotOperation<T> for Backend<Framework> {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Backend<Framework>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/frameworks/native/mod.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |       Box<Future<Item=(Buffer<usize>, Buffer<T>,
[INFO] [stderr]    |  _________^
[INFO] [stderr] 31 | |                      Buffer<usize>, Buffer<T>,
[INFO] [stderr] 32 | |                      Buffer<usize>, Buffer<T>), Error=Error>> {
[INFO] [stderr]    | |____________________________________________________________^
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Box<dyn Future<Item=(Buffer<usize>, Buffer<T>,
[INFO] [stderr] 31 |                      Buffer<usize>, Buffer<T>,
[INFO] [stderr] 32 |                      Buffer<usize>, Buffer<T>), Error=Error>> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/frameworks/native/mod.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |                mut shape_c: Buffer<usize>,
[INFO] [stderr]    |                ----^^^^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/frameworks/native/mod.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |                mut c: Buffer<T>) ->
[INFO] [stderr]    |                ----^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in methods without bodies
[INFO] [stderr]   --> src/operation.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 |                mut shape_c: Buffer<usize>,
[INFO] [stderr]    |                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in methods without bodies
[INFO] [stderr]   --> src/operation.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |                mut c: Buffer<T>) ->
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/operation.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |       Box<Future<Item=(Buffer<usize>, Buffer<T>, // A
[INFO] [stderr]    |  _________^
[INFO] [stderr] 13 | |                      Buffer<usize>, Buffer<T>, // B
[INFO] [stderr] 14 | |                      Buffer<usize>, Buffer<T>), Error=Error>>; // Result
[INFO] [stderr]    | |____________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Box<dyn Future<Item=(Buffer<usize>, Buffer<T>, // A
[INFO] [stderr] 13 |                      Buffer<usize>, Buffer<T>, // B
[INFO] [stderr] 14 |                      Buffer<usize>, Buffer<T>), Error=Error>>; // Result
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IntoFuture`
[INFO] [stderr]  --> src/frameworks/native/mod.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::{Future, IntoFuture};
[INFO] [stderr]   |                       ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/frameworks/native/mod.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use popcorn::buffer::{self, Buffer, BufferDevice, Error};
[INFO] [stderr]   |                       ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/frameworks/native/mod.rs:22:66
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<T: Dot + Copy + Sized + Send + 'static> DotOperation<T> for Backend<Framework> {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Backend<Framework>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/frameworks/native/mod.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |       Box<Future<Item=(Buffer<usize>, Buffer<T>,
[INFO] [stderr]    |  _________^
[INFO] [stderr] 31 | |                      Buffer<usize>, Buffer<T>,
[INFO] [stderr] 32 | |                      Buffer<usize>, Buffer<T>), Error=Error>> {
[INFO] [stderr]    | |____________________________________________________________^
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Box<dyn Future<Item=(Buffer<usize>, Buffer<T>,
[INFO] [stderr] 31 |                      Buffer<usize>, Buffer<T>,
[INFO] [stderr] 32 |                      Buffer<usize>, Buffer<T>), Error=Error>> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `frameworks::native::Dot` in public interface (error E0445)
[INFO] [stderr]   --> src/frameworks/native/mod.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / impl<T: Dot + Copy + Sized + Send + 'static> DotOperation<T> for Backend<Framework> {
[INFO] [stderr] 23 | |   fn bcast_dot(&self,
[INFO] [stderr] 24 | |                shape_a: Buffer<usize>,
[INFO] [stderr] 25 | |                a: Buffer<T>,
[INFO] [stderr] ...  |
[INFO] [stderr] 72 | |     }
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/frameworks/native/mod.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |                mut shape_c: Buffer<usize>,
[INFO] [stderr]    |                ----^^^^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/frameworks/native/mod.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |                mut c: Buffer<T>) ->
[INFO] [stderr]    |                ----^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `frameworks::native::Dot` in public interface (error E0445)
[INFO] [stderr]   --> src/frameworks/native/mod.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / impl<T: Dot + Copy + Sized + Send + 'static> DotOperation<T> for Backend<Framework> {
[INFO] [stderr] 23 | |   fn bcast_dot(&self,
[INFO] [stderr] 24 | |                shape_a: Buffer<usize>,
[INFO] [stderr] 25 | |                a: Buffer<T>,
[INFO] [stderr] ...  |
[INFO] [stderr] 72 | |     }
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "8e2b305c4fe001a6d3733d3c99f80f4d6ed6be45e36d0e98557e7609fb8ce67a"`
[INFO] running `"docker" "rm" "-f" "8e2b305c4fe001a6d3733d3c99f80f4d6ed6be45e36d0e98557e7609fb8ce67a"`
[INFO] [stdout] 8e2b305c4fe001a6d3733d3c99f80f4d6ed6be45e36d0e98557e7609fb8ce67a