[INFO] fetching crate flatty-io 0.1.0-rc.6...
[INFO] checking flatty-io-0.1.0-rc.6 against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied
[INFO] extracting crate flatty-io 0.1.0-rc.6 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate flatty-io 0.1.0-rc.6
[INFO] finished tweaking crates.io crate flatty-io 0.1.0-rc.6
[INFO] tweaked toml for crates.io crate flatty-io 0.1.0-rc.6 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flatty-io 0.1.0-rc.6 on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "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" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 74 packages to latest compatible versions
[INFO] [stderr]       Adding async-ringbuf v0.2.1 (available: v0.3.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e222f732115b571ab8faff440d2c26e25d18b687238f712342edb2820aff5d8
[INFO] running `Command { std: "docker" "start" "-a" "8e222f732115b571ab8faff440d2c26e25d18b687238f712342edb2820aff5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e222f732115b571ab8faff440d2c26e25d18b687238f712342edb2820aff5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e222f732115b571ab8faff440d2c26e25d18b687238f712342edb2820aff5d8", kill_on_drop: false }`
[INFO] [stdout] 8e222f732115b571ab8faff440d2c26e25d18b687238f712342edb2820aff5d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dinherent-method-on-receiver" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c51f3b0664de7339927531b40a9d3800d925d7eefa886f5bae2d83228440b2f
[INFO] running `Command { std: "docker" "start" "-a" "5c51f3b0664de7339927531b40a9d3800d925d7eefa886f5bae2d83228440b2f", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking value-bag v1.12.0
[INFO] [stderr]     Checking ringbuf v0.4.8
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking async-lock v3.4.2
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking ringbuf-blocking v0.1.0-rc.6
[INFO] [stderr]     Checking stavec v0.3.0
[INFO] [stderr]     Checking flatty-base v0.1.0-rc.4
[INFO] [stderr]     Checking flatty-portable v0.1.0-rc.4
[INFO] [stderr]     Checking blocking v1.6.2
[INFO] [stderr]     Checking async-executor v1.13.3
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling flatty-macros v0.1.0-rc.4
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking flatty v0.1.0-rc.4
[INFO] [stderr]     Checking polling v3.11.0
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.13.2
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking async-ringbuf v0.2.1
[INFO] [stderr]     Checking flatty-io v0.1.0-rc.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `io::*`
[INFO] [stdout]  --> src/blocking/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use io::*;
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/blocking/recv.rs:74:19
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn retain(self) {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 | impl<'a, M: Flat + ?Sized, B: ReadBuffer + 'a> Deref for RecvGuard<'a, M, B> {
[INFO] [stdout]    | ---------------------------------------------------------------------------- trait implemented here
[INFO] [stdout] 87 |     type Target = M;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/blocking/send.rs:55:17
[INFO] [stdout]     |
[INFO] [stdout]  55 |     pub fn send(self) -> Result<(), SendError<B::Error>> {
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 | impl<'a, M: Flat + ?Sized, B: WriteBuffer + 'a> Deref for SendGuard<'a, M, B> {
[INFO] [stdout]     | ----------------------------------------------------------------------------- trait implemented here
[INFO] [stdout] 107 |     type Target = M;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/async_/recv.rs:94:19
[INFO] [stdout]     |
[INFO] [stdout]  94 |     pub fn retain(self) {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 | impl<'a, M: Flat + ?Sized, B: AsyncReadBuffer + 'a> Deref for RecvGuard<'a, M, B> {
[INFO] [stdout]     | --------------------------------------------------------------------------------- trait implemented here
[INFO] [stdout] 107 |     type Target = M;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/async_/send.rs:76:17
[INFO] [stdout]     |
[INFO] [stdout]  76 |     pub fn send(self) -> B::WriteAll<'a> {
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 | impl<'a, M: Flat + ?Sized, B: AsyncWriteBuffer + 'a> Deref for SendGuard<'a, M, B> {
[INFO] [stdout]     | ---------------------------------------------------------------------------------- trait implemented here
[INFO] [stdout] 130 |     type Target = M;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flatty-io` (lib) due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5c51f3b0664de7339927531b40a9d3800d925d7eefa886f5bae2d83228440b2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c51f3b0664de7339927531b40a9d3800d925d7eefa886f5bae2d83228440b2f", kill_on_drop: false }`
[INFO] [stdout] 5c51f3b0664de7339927531b40a9d3800d925d7eefa886f5bae2d83228440b2f