[INFO] fetching crate freertos-rust 0.1.2...
[INFO] checking freertos-rust-0.1.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate freertos-rust 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate freertos-rust 0.1.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db3837a1c100f2705ffac546841f399c313243f9d5311cc4f3c7090d6b5a0f54
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "db3837a1c100f2705ffac546841f399c313243f9d5311cc4f3c7090d6b5a0f54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db3837a1c100f2705ffac546841f399c313243f9d5311cc4f3c7090d6b5a0f54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3837a1c100f2705ffac546841f399c313243f9d5311cc4f3c7090d6b5a0f54", kill_on_drop: false }`
[INFO] [stdout] db3837a1c100f2705ffac546841f399c313243f9d5311cc4f3c7090d6b5a0f54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0b9cbe69185cec338df0b116c054b8ac028bb512c42b5bdd071413ddb3c7903e
[INFO] running `Command { std: "docker" "start" "-a" "0b9cbe69185cec338df0b116c054b8ac028bb512c42b5bdd071413ddb3c7903e", kill_on_drop: false }`
[INFO] [stderr]    Compiling freertos-rust v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `print_env`
[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: field is never read: `id`
[INFO] [stdout]  --> src/utils.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `c_size`
[INFO] [stdout]  --> src/utils.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     c_size: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rust_size`
[INFO] [stdout]  --> src/utils.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     rust_size: usize
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]  --> src/utils.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `c_size`
[INFO] [stdout]  --> src/utils.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     c_size: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rust_size`
[INFO] [stdout]  --> src/utils.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     rust_size: usize
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "0b9cbe69185cec338df0b116c054b8ac028bb512c42b5bdd071413ddb3c7903e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b9cbe69185cec338df0b116c054b8ac028bb512c42b5bdd071413ddb3c7903e", kill_on_drop: false }`
[INFO] [stdout] 0b9cbe69185cec338df0b116c054b8ac028bb512c42b5bdd071413ddb3c7903e