[INFO] fetching crate blend_info 0.2.9...
[INFO] checking blend_info-0.2.9 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate blend_info 0.2.9 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate blend_info 0.2.9
[INFO] finished tweaking crates.io crate blend_info 0.2.9
[INFO] tweaked toml for crates.io crate blend_info 0.2.9 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate blend_info 0.2.9 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate blend_info 0.2.9 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01402970c73ad16f8e92fc6b062f6f8507ef809e3e64c6102fa387a2d595341e
[INFO] running `Command { std: "docker" "start" "-a" "01402970c73ad16f8e92fc6b062f6f8507ef809e3e64c6102fa387a2d595341e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01402970c73ad16f8e92fc6b062f6f8507ef809e3e64c6102fa387a2d595341e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01402970c73ad16f8e92fc6b062f6f8507ef809e3e64c6102fa387a2d595341e", kill_on_drop: false }`
[INFO] [stdout] 01402970c73ad16f8e92fc6b062f6f8507ef809e3e64c6102fa387a2d595341e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07282c6bc9e96e7d76661963547979c1d0943d4a9d44f69c94b9b39601e38280
[INFO] running `Command { std: "docker" "start" "-a" "07282c6bc9e96e7d76661963547979c1d0943d4a9d44f69c94b9b39601e38280", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking blend_info v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:731:32
[INFO] [stdout]     |
[INFO] [stdout] 731 |         float_value = unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                --------------^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:749:40
[INFO] [stdout]     |
[INFO] [stdout] 749 |             float_values[i] = unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                        --------------^^^^^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:768:40
[INFO] [stdout]     |
[INFO] [stdout] 768 |             float_values[i] = unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                        --------------^^^^^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:787:40
[INFO] [stdout]     |
[INFO] [stdout] 787 |             float_values[i] = unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                        --------------^^^^^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:824:41
[INFO] [stdout]     |
[INFO] [stdout] 824 |                 let mat: f32 = unsafe { mem::transmute(mat_buf) };
[INFO] [stdout]     |                                         --------------^^^^^^^^^
[INFO] [stdout]     |                                         |
[INFO] [stdout]     |                                         help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:731:32
[INFO] [stdout]     |
[INFO] [stdout] 731 |         float_value = unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                --------------^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:749:40
[INFO] [stdout]     |
[INFO] [stdout] 749 |             float_values[i] = unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                        --------------^^^^^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:768:40
[INFO] [stdout]     |
[INFO] [stdout] 768 |             float_values[i] = unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                        --------------^^^^^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:787:40
[INFO] [stdout]     |
[INFO] [stdout] 787 |             float_values[i] = unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                        --------------^^^^^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:824:41
[INFO] [stdout]     |
[INFO] [stdout] 824 |                 let mat: f32 = unsafe { mem::transmute(mat_buf) };
[INFO] [stdout]     |                                         --------------^^^^^^^^^
[INFO] [stdout]     |                                         |
[INFO] [stdout]     |                                         help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/blend_info.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// Print information about a particular struct
[INFO] [stdout] 23 | |     #[structopt(short = "n", long = "struct_name")]
[INFO] [stdout] 24 | |     struct_name: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/bin/blend_info.rs:262:62
[INFO] [stdout]     |
[INFO] [stdout] 262 | ...                   unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                --------------^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blend_info` (bin "blend_info" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/blend_info.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// Print information about a particular struct
[INFO] [stdout] 23 | |     #[structopt(short = "n", long = "struct_name")]
[INFO] [stdout] 24 | |     struct_name: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/bin/blend_info.rs:262:62
[INFO] [stdout]     |
[INFO] [stdout] 262 | ...                   unsafe { mem::transmute(float_buf) };
[INFO] [stdout]     |                                --------------^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: replace this with: `f32::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blend_info` (bin "blend_info") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "07282c6bc9e96e7d76661963547979c1d0943d4a9d44f69c94b9b39601e38280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07282c6bc9e96e7d76661963547979c1d0943d4a9d44f69c94b9b39601e38280", kill_on_drop: false }`
[INFO] [stdout] 07282c6bc9e96e7d76661963547979c1d0943d4a9d44f69c94b9b39601e38280
