[INFO] fetching crate wars-rt 0.8.1...
[INFO] checking wars-rt-0.8.1 against try#e983148bd5f0f0db270bfb72149f5e892e68b67f for pr-150322
[INFO] extracting crate wars-rt 0.8.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate wars-rt 0.8.1
[INFO] finished tweaking crates.io crate wars-rt 0.8.1
[INFO] tweaked toml for crates.io crate wars-rt 0.8.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wars-rt 0.8.1 on toolchain e983148bd5f0f0db270bfb72149f5e892e68b67f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wars-rt 0.8.1 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" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.3.0+portal` for dependency `portal-pc-tramp` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/77295316f68654116922e95093373aa38f121f9a8d5e841093689f4ce95a6cb5-init: no space left on device
[INFO] checking wars-rt-0.8.1 against try#e983148bd5f0f0db270bfb72149f5e892e68b67f for pr-150322
[INFO] extracting crate wars-rt 0.8.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate wars-rt 0.8.1
[INFO] finished tweaking crates.io crate wars-rt 0.8.1
[INFO] tweaked toml for crates.io crate wars-rt 0.8.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wars-rt 0.8.1 on toolchain e983148bd5f0f0db270bfb72149f5e892e68b67f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wars-rt 0.8.1 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" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.3.0+portal` for dependency `portal-pc-tramp` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/d90069f032fc829ca872b42ac5c0707cc68404049edfa8b7c41e6138e150953c-init: no space left on device
[INFO] checking wars-rt-0.8.1 against try#e983148bd5f0f0db270bfb72149f5e892e68b67f for pr-150322
[INFO] extracting crate wars-rt 0.8.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate wars-rt 0.8.1
[INFO] finished tweaking crates.io crate wars-rt 0.8.1
[INFO] tweaked toml for crates.io crate wars-rt 0.8.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wars-rt 0.8.1 on toolchain e983148bd5f0f0db270bfb72149f5e892e68b67f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wars-rt 0.8.1 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" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.3.0+portal` for dependency `portal-pc-tramp` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50640fefb26c7c6ea7ea80520f8b29189b2a3444aab00958394457c32ad36e24
[INFO] running `Command { std: "docker" "start" "-a" "50640fefb26c7c6ea7ea80520f8b29189b2a3444aab00958394457c32ad36e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50640fefb26c7c6ea7ea80520f8b29189b2a3444aab00958394457c32ad36e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50640fefb26c7c6ea7ea80520f8b29189b2a3444aab00958394457c32ad36e24", kill_on_drop: false }`
[INFO] [stdout] 50640fefb26c7c6ea7ea80520f8b29189b2a3444aab00958394457c32ad36e24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03c4eec1c4d212c687ba004536f73eadf0c1c575141aead537a3419ef9ebda04
[INFO] running `Command { std: "docker" "start" "-a" "03c4eec1c4d212c687ba004536f73eadf0c1c575141aead537a3419ef9ebda04", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.3.0+portal` for dependency `portal-pc-tramp` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking portal-pc-tramp v0.3.0+portal
[INFO] [stderr]     Checking tuple_list v0.1.3
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]    Compiling derive_more v0.99.19
[INFO] [stderr]     Checking wars-rt v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `empty` and `once`
[INFO] [stdout]  --> src/func/unsync.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     iter::{empty, once},
[INFO] [stdout]   |            ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/func/unsync.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     async fn go(mut self) -> T
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `empty` and `once`
[INFO] [stdout]  --> src/func/unsync.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     iter::{empty, once},
[INFO] [stdout]   |            ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func/unsync.rs:246:14
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func.rs:206:14
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lib.rs:109:33
[INFO] [stdout]     |
[INFO] [stdout] 109 |         self.extend((0..x).map(|a| 0u8));
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/func/unsync.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     async fn go(mut self) -> T
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/func/unsync.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     async fn go(mut self) -> T
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 21 ~     fn go(mut self) -> impl std::future::Future<Output = T> + Send
[INFO] [stdout] 22 |     where
[INFO] [stdout] 23 |         Self: Sized,
[INFO] [stdout] 24 ~     {async {
[INFO] [stdout] 25 |         return self.await.go().await;
[INFO] [stdout] 26 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func/unsync.rs:246:14
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func.rs:206:14
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lib.rs:109:33
[INFO] [stdout]     |
[INFO] [stdout] 109 |         self.extend((0..x).map(|a| 0u8));
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/func/unsync.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     async fn go(mut self) -> T
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 21 ~     fn go(mut self) -> impl std::future::Future<Output = T> + Send
[INFO] [stdout] 22 |     where
[INFO] [stdout] 23 |         Self: Sized,
[INFO] [stdout] 24 ~     {async {
[INFO] [stdout] 25 |         return self.await.go().await;
[INFO] [stdout] 26 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "03c4eec1c4d212c687ba004536f73eadf0c1c575141aead537a3419ef9ebda04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c4eec1c4d212c687ba004536f73eadf0c1c575141aead537a3419ef9ebda04", kill_on_drop: false }`
[INFO] [stdout] 03c4eec1c4d212c687ba004536f73eadf0c1c575141aead537a3419ef9ebda04
