[INFO] fetching crate mnist 0.6.0...
[INFO] checking mnist-0.6.0 against try#4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7 for pr-158816
[INFO] extracting crate mnist 0.6.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mnist 0.6.0
[INFO] finished tweaking crates.io crate mnist 0.6.0
[INFO] tweaked toml for crates.io crate mnist 0.6.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mnist 0.6.0 on toolchain 4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mnist 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068
[INFO] running `Command { std: "docker" "start" "83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking memoffset v0.9.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling sdl2-sys v0.34.5
[INFO] [stderr]     Checking mnist v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stdout] warning: unused variable: `base_url`
[INFO] [stdout]    --> src/lib.rs:404:17
[INFO] [stdout]     |
[INFO] [stdout] 404 |             let base_url = if self.use_fashion_data {
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_url`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:433:13
[INFO] [stdout]     |
[INFO] [stdout] 433 | /             format!(
[INFO] [stdout] 434 | |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stdout] 435 | |                 total_length, available_length
[INFO] [stdout] 436 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 433 ~             
[INFO] [stdout] 434 |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stdout] 435 |                 total_length, available_length
[INFO] [stdout] 436 ~             
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/lib.rs:460:9
[INFO] [stdout]     |
[INFO] [stdout] 460 |         tst_img.split_off(tst_len * ROWS * COLS);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 460 |         let _ = tst_img.split_off(tst_len * ROWS * COLS);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/lib.rs:461:9
[INFO] [stdout]     |
[INFO] [stdout] 461 |         tst_lbl.split_off(tst_len);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 461 |         let _ = tst_lbl.split_off(tst_len);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:562:9
[INFO] [stdout]     |
[INFO] [stdout] 562 | /         format!(
[INFO] [stdout] 563 | |             "Expected magic number {} got {}.",
[INFO] [stdout] 564 | |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stdout] 565 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 562 ~         
[INFO] [stdout] 563 |             "Expected magic number {} got {}.",
[INFO] [stdout] 564 |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stdout] 565 ~         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:572:9
[INFO] [stdout]     |
[INFO] [stdout] 572 | /         format!(
[INFO] [stdout] 573 | |             "Expected data set length of {} got {}.",
[INFO] [stdout] 574 | |             expected_length, length
[INFO] [stdout] 575 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 572 ~         
[INFO] [stdout] 573 |             "Expected data set length of {} got {}.",
[INFO] [stdout] 574 |             expected_length, length
[INFO] [stdout] 575 ~         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:599:9
[INFO] [stdout]     |
[INFO] [stdout] 599 | /         format!(
[INFO] [stdout] 600 | |             "Expected magic number {} got {}.",
[INFO] [stdout] 601 | |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stdout] 602 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 599 ~         
[INFO] [stdout] 600 |             "Expected magic number {} got {}.",
[INFO] [stdout] 601 |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stdout] 602 ~         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:609:9
[INFO] [stdout]     |
[INFO] [stdout] 609 | /         format!(
[INFO] [stdout] 610 | |             "Expected data set length of {} got {}.",
[INFO] [stdout] 611 | |             expected_length, length
[INFO] [stdout] 612 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 609 ~         
[INFO] [stdout] 610 |             "Expected data set length of {} got {}.",
[INFO] [stdout] 611 |             expected_length, length
[INFO] [stdout] 612 ~         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:620:9
[INFO] [stdout]     |
[INFO] [stdout] 620 |         format!("Expected rows length of {} got {}.", ROWS, rows)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 620 -         format!("Expected rows length of {} got {}.", ROWS, rows)
[INFO] [stdout] 620 +         "Expected rows length of {} got {}.", ROWS, rows
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:628:9
[INFO] [stdout]     |
[INFO] [stdout] 628 |         format!("Expected cols length of {} got {}.", COLS, cols)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 628 -         format!("Expected cols length of {} got {}.", COLS, cols)
[INFO] [stdout] 628 +         "Expected cols length of {} got {}.", COLS, cols
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stdout] error: `#[inline]` attribute cannot be used on macro calls
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ndarray-0.14.0/src/dimension/dimension_trait.rs:428:5
[INFO] [stdout]     |
[INFO] [stdout] 428 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: `#[inline]` can only be applied to functions
[INFO] [stdout]     = note: placing this attribute on a macro invocation does nothing even if the macro expands to what would be a valid target for the attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[inline]` attribute cannot be used on macro calls
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ndarray-0.14.0/src/dimension/dimension_trait.rs:537:5
[INFO] [stdout]     |
[INFO] [stdout] 537 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: `#[inline]` can only be applied to functions
[INFO] [stdout]     = note: placing this attribute on a macro invocation does nothing even if the macro expands to what would be a valid target for the attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[inline]` attribute cannot be used on macro calls
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ndarray-0.14.0/src/dimension/dimension_trait.rs:702:5
[INFO] [stdout]     |
[INFO] [stdout] 702 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: `#[inline]` can only be applied to functions
[INFO] [stdout]     = note: placing this attribute on a macro invocation does nothing even if the macro expands to what would be a valid target for the attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[inline]` attribute cannot be used on macro calls
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ndarray-0.14.0/src/dimension/dimension_trait.rs:823:5
[INFO] [stdout]     |
[INFO] [stdout] 823 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: `#[inline]` can only be applied to functions
[INFO] [stdout]     = note: placing this attribute on a macro invocation does nothing even if the macro expands to what would be a valid target for the attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[inline]` attribute cannot be used on macro calls
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ndarray-0.14.0/src/dimension/dimension_trait.rs:855:13
[INFO] [stdout]     |
[INFO] [stdout] 855 |               #[inline]
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 866 | / large_dim!(4, Ix4, (Ix, Ix, Ix, Ix), Ix5, {
[INFO] [stdout] 867 | |     impl_insert_axis_array!(4);
[INFO] [stdout] 868 | | });
[INFO] [stdout]     | |__- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: `#[inline]` can only be applied to functions
[INFO] [stdout]     = note: placing this attribute on a macro invocation does nothing even if the macro expands to what would be a valid target for the attribute
[INFO] [stdout]     = note: this error originates in the macro `large_dim` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[inline]` attribute cannot be used on macro calls
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ndarray-0.14.0/src/dimension/dimension_trait.rs:855:13
[INFO] [stdout]     |
[INFO] [stdout] 855 |               #[inline]
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 869 | / large_dim!(5, Ix5, (Ix, Ix, Ix, Ix, Ix), Ix6, {
[INFO] [stdout] 870 | |     impl_insert_axis_array!(5);
[INFO] [stdout] 871 | | });
[INFO] [stdout]     | |__- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: `#[inline]` can only be applied to functions
[INFO] [stdout]     = note: placing this attribute on a macro invocation does nothing even if the macro expands to what would be a valid target for the attribute
[INFO] [stdout]     = note: this error originates in the macro `large_dim` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr] error: could not compile `ndarray` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068", kill_on_drop: false }`
[INFO] [stdout] 83830de0b4d480e8089f01757869d950fbbd4a6119ed2a0dbae396c864a34068
