[INFO] fetching crate freertos-rust 0.1.2...
[INFO] checking freertos-rust-0.1.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate freertos-rust 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate freertos-rust 0.1.2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate freertos-rust 0.1.2
[INFO] finished tweaking crates.io crate freertos-rust 0.1.2
[INFO] tweaked toml for crates.io crate freertos-rust 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1058a8b5cb2ceeddb7f0a981a8363363f0b91edf66e01df1758b6240f21c65f6
[INFO] running `Command { std: "docker" "start" "-a" "1058a8b5cb2ceeddb7f0a981a8363363f0b91edf66e01df1758b6240f21c65f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1058a8b5cb2ceeddb7f0a981a8363363f0b91edf66e01df1758b6240f21c65f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1058a8b5cb2ceeddb7f0a981a8363363f0b91edf66e01df1758b6240f21c65f6", kill_on_drop: false }`
[INFO] [stdout] 1058a8b5cb2ceeddb7f0a981a8363363f0b91edf66e01df1758b6240f21c65f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67c3ea0fc1bf8ec827a3a28e9a7e34cfd6b16b9b47b455b23efdc3563ba5f88e
[INFO] running `Command { std: "docker" "start" "-a" "67c3ea0fc1bf8ec827a3a28e9a7e34cfd6b16b9b47b455b23efdc3563ba5f88e", kill_on_drop: false }`
[INFO] [stderr]    Compiling freertos-rust v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `print_env` is never used
[INFO] [stdout]  --> build.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn print_env() {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::prelude::*`
[INFO] [stdout]  --> src/prelude/no_std.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use core::prelude::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::cell::RefCell`
[INFO] [stdout]  --> src/prelude/no_std.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use core::cell::RefCell;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ops::Range`
[INFO] [stdout]  --> src/prelude/no_std.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use core::ops::Range;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num::Wrapping`
[INFO] [stdout]  --> src/prelude/no_std.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use core::num::Wrapping;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::intrinsics::write_bytes`
[INFO] [stdout]   --> src/prelude/no_std.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use core::intrinsics::write_bytes;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::rc::Rc`
[INFO] [stdout]   --> src/prelude/no_std.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use alloc::rc::Rc;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::prelude::*`
[INFO] [stdout]  --> src/prelude/no_std.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use core::prelude::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::cell::RefCell`
[INFO] [stdout]  --> src/prelude/no_std.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use core::cell::RefCell;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ops::Range`
[INFO] [stdout]  --> src/prelude/no_std.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use core::ops::Range;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num::Wrapping`
[INFO] [stdout]  --> src/prelude/no_std.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use core::num::Wrapping;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::intrinsics::write_bytes`
[INFO] [stdout]   --> src/prelude/no_std.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use core::intrinsics::write_bytes;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::rc::Rc`
[INFO] [stdout]   --> src/prelude/no_std.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use alloc::rc::Rc;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `c_size`, and `rust_size` are never read
[INFO] [stdout]  --> src/utils.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TypeSizeError {
[INFO] [stdout]   |            ------------- fields in this struct
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 8 |     c_size: usize,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 9 |     rust_size: usize
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TypeSizeError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `alloc::boxed::Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/timers.rs:107:25
[INFO] [stdout]     |
[INFO] [stdout] 107 |                         Box::into_raw(b);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 107 |                         let _ = Box::into_raw(b);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `core::mem::needs_drop` to detect whether a type can be trivially dropped
[INFO] [stdout]    --> src/mutex.rs:102:46
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub trait MutexInnerImpl where Self: Sized + Drop {
[INFO] [stdout]     |                                              ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `c_size`, and `rust_size` are never read
[INFO] [stdout]  --> src/utils.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TypeSizeError {
[INFO] [stdout]   |            ------------- fields in this struct
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 8 |     c_size: usize,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 9 |     rust_size: usize
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TypeSizeError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `alloc::boxed::Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/timers.rs:107:25
[INFO] [stdout]     |
[INFO] [stdout] 107 |                         Box::into_raw(b);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 107 |                         let _ = Box::into_raw(b);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `core::mem::needs_drop` to detect whether a type can be trivially dropped
[INFO] [stdout]    --> src/mutex.rs:102:46
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub trait MutexInnerImpl where Self: Sized + Drop {
[INFO] [stdout]     |                                              ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "67c3ea0fc1bf8ec827a3a28e9a7e34cfd6b16b9b47b455b23efdc3563ba5f88e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67c3ea0fc1bf8ec827a3a28e9a7e34cfd6b16b9b47b455b23efdc3563ba5f88e", kill_on_drop: false }`
[INFO] [stdout] 67c3ea0fc1bf8ec827a3a28e9a7e34cfd6b16b9b47b455b23efdc3563ba5f88e