[INFO] fetching crate rtos 0.0.1...
[INFO] testing rtos-0.0.1 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate rtos 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rtos 0.0.1
[INFO] finished tweaking crates.io crate rtos 0.0.1
[INFO] tweaked toml for crates.io crate rtos 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rtos 0.0.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8
[INFO] running `Command { std: "docker" "start" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8", 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" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rtos v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `entrypoint`
[INFO] [stdout]   --> src/task.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn spawn(&self, entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entrypoint`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idle_hook`
[INFO] [stdout]  --> src/lib.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn start(idle_hook: impl FnMut()) {}
[INFO] [stdout]   |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idle_hook`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Priority` is never used
[INFO] [stdout]  --> src/task.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Priority {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskHandle` is never constructed
[INFO] [stdout]   --> src/task.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct TaskHandle {}
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Builder` is never constructed
[INFO] [stdout]   --> src/task.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Builder {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `spawn` are never used
[INFO] [stdout]   --> src/task.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Builder {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 27 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn spawn(&self, entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spawn` is never used
[INFO] [stdout]   --> src/task.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn spawn(entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `entrypoint`
[INFO] [stdout]   --> src/task.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn spawn(&self, entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entrypoint`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idle_hook`
[INFO] [stdout]  --> src/lib.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn start(idle_hook: impl FnMut()) {}
[INFO] [stdout]   |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idle_hook`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rtos v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Priority` is never used
[INFO] [stdout]  --> src/task.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Priority {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskHandle` is never constructed
[INFO] [stdout]   --> src/task.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct TaskHandle {}
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Builder` is never constructed
[INFO] [stdout]   --> src/task.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Builder {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `spawn` are never used
[INFO] [stdout]   --> src/task.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Builder {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 27 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn spawn(&self, entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spawn` is never used
[INFO] [stdout]   --> src/task.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn spawn(entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entrypoint`
[INFO] [stdout]   --> src/task.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn spawn(&self, entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entrypoint`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idle_hook`
[INFO] [stdout]  --> src/lib.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn start(idle_hook: impl FnMut()) {}
[INFO] [stdout]   |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idle_hook`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Priority` is never used
[INFO] [stdout]  --> src/task.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Priority {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskHandle` is never constructed
[INFO] [stdout]   --> src/task.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct TaskHandle {}
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Builder` is never constructed
[INFO] [stdout]   --> src/task.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Builder {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `spawn` are never used
[INFO] [stdout]   --> src/task.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Builder {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 27 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn spawn(&self, entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spawn` is never used
[INFO] [stdout]   --> src/task.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn spawn(entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `entrypoint`
[INFO] [stderr]   --> src/task.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn spawn(&self, entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stderr]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entrypoint`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idle_hook`
[INFO] [stderr]  --> src/lib.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn start(idle_hook: impl FnMut()) {}
[INFO] [stderr]   |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idle_hook`
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Priority` is never used
[INFO] [stderr]  --> src/task.rs:1:6
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum Priority {
[INFO] [stderr]   |      ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TaskHandle` is never constructed
[INFO] [stderr]   --> src/task.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct TaskHandle {}
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Builder` is never constructed
[INFO] [stderr]   --> src/task.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Builder {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `spawn` are never used
[INFO] [stderr]   --> src/task.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | impl Builder {
[INFO] [stderr]    | ------------ associated items in this implementation
[INFO] [stderr] 27 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 |     pub fn spawn(&self, entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `spawn` is never used
[INFO] [stderr]   --> src/task.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn spawn(entrypoint: impl FnOnce() -> ()) -> TaskHandle {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rtos` (lib) generated 7 warnings (run `cargo fix --lib -p rtos` to apply 2 suggestions)
[INFO] [stderr] warning: `rtos` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/rtos/21fbf3720cf602b5/out/rtos-21fbf3720cf602b5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rtos
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8", kill_on_drop: false }`
[INFO] [stdout] dc746f5fd8ff86c0c39e9c31cc7720e4ecb323f4ea0fe9a717d8f9eab1e511d8
