[INFO] fetching crate fixed_ring_buffer 0.1.0...
[INFO] checking fixed_ring_buffer-0.1.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate fixed_ring_buffer 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate fixed_ring_buffer 0.1.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fixed_ring_buffer 0.1.0
[INFO] finished tweaking crates.io crate fixed_ring_buffer 0.1.0
[INFO] tweaked toml for crates.io crate fixed_ring_buffer 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 842ae6fd7cd95809c3f758b30089df2346c47cceff1d34604396b034a8b35b5d
[INFO] running `Command { std: "docker" "start" "-a" "842ae6fd7cd95809c3f758b30089df2346c47cceff1d34604396b034a8b35b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "842ae6fd7cd95809c3f758b30089df2346c47cceff1d34604396b034a8b35b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "842ae6fd7cd95809c3f758b30089df2346c47cceff1d34604396b034a8b35b5d", kill_on_drop: false }`
[INFO] [stdout] 842ae6fd7cd95809c3f758b30089df2346c47cceff1d34604396b034a8b35b5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c502deebae66f0566f2c6712092e83157d18154677bf61ae0cb98efa14ebdbcb
[INFO] running `Command { std: "docker" "start" "-a" "c502deebae66f0566f2c6712092e83157d18154677bf61ae0cb98efa14ebdbcb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cache-padded v1.1.1
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[INFO] [stderr]     Checking parking v2.0.0
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[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking atomic-waker v1.0.0
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[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
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[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking futures-util v0.3.16
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[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking fixed_ring_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/async_ring_buffer.rs:154:44
[INFO] [stdout]     |
[INFO] [stdout] 154 | ...   assert_eq!(ring_buffer.write_pos.compare_and_swap(write_pos as u64, (write_pos + write_total) as u64, Ordering::SeqCst), write_pos ...
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/async_ring_buffer.rs:160:44
[INFO] [stdout]     |
[INFO] [stdout] 160 |           assert_eq!(ring_buffer.write_pos.compare_and_swap(write_pos as u64, remaining as u64, Ordering::SeqCst), write_pos as u64);
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/async_ring_buffer.rs:154:44
[INFO] [stdout]     |
[INFO] [stdout] 154 | ...   assert_eq!(ring_buffer.write_pos.compare_and_swap(write_pos as u64, (write_pos + write_total) as u64, Ordering::SeqCst), write_pos ...
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/async_ring_buffer.rs:160:44
[INFO] [stdout]     |
[INFO] [stdout] 160 |           assert_eq!(ring_buffer.write_pos.compare_and_swap(write_pos as u64, remaining as u64, Ordering::SeqCst), write_pos as u64);
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.23s
[INFO] running `Command { std: "docker" "inspect" "c502deebae66f0566f2c6712092e83157d18154677bf61ae0cb98efa14ebdbcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c502deebae66f0566f2c6712092e83157d18154677bf61ae0cb98efa14ebdbcb", kill_on_drop: false }`
[INFO] [stdout] c502deebae66f0566f2c6712092e83157d18154677bf61ae0cb98efa14ebdbcb