[INFO] fetching crate simple-rc-async 0.1.1...
[INFO] checking simple-rc-async-0.1.1 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate simple-rc-async 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate simple-rc-async 0.1.1
[INFO] finished tweaking crates.io crate simple-rc-async 0.1.1
[INFO] tweaked toml for crates.io crate simple-rc-async 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple-rc-async 0.1.1 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate simple-rc-async 0.1.1 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab6830571e77f2fdc2c5443588a9ac08517330b766320d58e7c9fba25425a8fc
[INFO] running `Command { std: "docker" "start" "-a" "ab6830571e77f2fdc2c5443588a9ac08517330b766320d58e7c9fba25425a8fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab6830571e77f2fdc2c5443588a9ac08517330b766320d58e7c9fba25425a8fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab6830571e77f2fdc2c5443588a9ac08517330b766320d58e7c9fba25425a8fc", kill_on_drop: false }`
[INFO] [stdout] ab6830571e77f2fdc2c5443588a9ac08517330b766320d58e7c9fba25425a8fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56d014beaf0ce6d30af41db862dc8421da2df8b95362c3758decfd8a0aec066b
[INFO] running `Command { std: "docker" "start" "-a" "56d014beaf0ce6d30af41db862dc8421da2df8b95362c3758decfd8a0aec066b", kill_on_drop: false }`
[INFO] [stderr]    Compiling convert_case v0.7.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking simple-rc-async v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Cell` and `os::unix::thread`
[INFO] [stdout]  --> src/sync/broadcast.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, hash::Hash, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, task::{Contex...
[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 import: `futures_core::Future`
[INFO] [stdout]  --> src/sync/broadcast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures_core::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell` and `os::unix::thread`
[INFO] [stdout]  --> src/sync/broadcastque.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, collections::VecDeque, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, ta...
[INFO] [stdout]   |                                     ^^^^                                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures_core::Future`
[INFO] [stdout]  --> src/sync/broadcastque.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures_core::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `cell_update` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(cell_update)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]  --> src/sync/broadcast.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, hash::Hash, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, task::{Contex...
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/sync/broadcast.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, hash::Hash, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, task::{Contex...
[INFO] [stdout]   |                                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]  --> src/sync/broadcastque.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, collections::VecDeque, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, ta...
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stdout] warning: unused imports: `Cell` and `os::unix::thread`
[INFO] [stdout]  --> src/sync/broadcast.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, hash::Hash, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, task::{Contex...
[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 import: `futures_core::Future`
[INFO] [stdout]  --> src/sync/broadcast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures_core::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell` and `os::unix::thread`
[INFO] [stdout]  --> src/sync/broadcastque.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, collections::VecDeque, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, ta...
[INFO] [stdout]   |                                     ^^^^                                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures_core::Future`
[INFO] [stdout]  --> src/sync/broadcastque.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures_core::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `cell_update` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(cell_update)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]  --> src/sync/broadcast.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, hash::Hash, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, task::{Contex...
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/sync/broadcast.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, hash::Hash, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, task::{Contex...
[INFO] [stdout]   |                                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]  --> src/sync/broadcastque.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, cell::{Cell, RefCell}, collections::VecDeque, ops::Deref, os::unix::thread, pin::Pin, rc::{Rc, Weak}, ta...
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.95s
[INFO] running `Command { std: "docker" "inspect" "56d014beaf0ce6d30af41db862dc8421da2df8b95362c3758decfd8a0aec066b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56d014beaf0ce6d30af41db862dc8421da2df8b95362c3758decfd8a0aec066b", kill_on_drop: false }`
[INFO] [stdout] 56d014beaf0ce6d30af41db862dc8421da2df8b95362c3758decfd8a0aec066b
