[INFO] fetching crate futures_ringbuf 0.3.1...
[INFO] testing futures_ringbuf-0.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate futures_ringbuf 0.3.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate futures_ringbuf 0.3.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures_ringbuf 0.3.1
[INFO] finished tweaking crates.io crate futures_ringbuf 0.3.1
[INFO] tweaked toml for crates.io crate futures_ringbuf 0.3.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate futures_ringbuf 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log-derive v0.4.1
[INFO] [stderr]   Downloaded assert_matches v1.5.0
[INFO] [stderr]   Downloaded asynchronous-codec v0.6.0
[INFO] [stderr]   Downloaded ringbuf v0.2.5
[INFO] [stderr]   Downloaded ergo-pin v0.1.0
[INFO] [stderr]   Downloaded semver v1.0.3
[INFO] [stderr]   Downloaded async-io v1.4.1
[INFO] [stderr]   Downloaded fastrand v1.4.1
[INFO] [stderr]   Downloaded polling v2.0.3
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.24
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.24
[INFO] [stderr]   Downloaded futures-test v0.3.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e94b827a9eea358559a94609f0c3d8ff29b9012568c48e5ec4041449478e923
[INFO] running `Command { std: "docker" "start" "-a" "2e94b827a9eea358559a94609f0c3d8ff29b9012568c48e5ec4041449478e923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e94b827a9eea358559a94609f0c3d8ff29b9012568c48e5ec4041449478e923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e94b827a9eea358559a94609f0c3d8ff29b9012568c48e5ec4041449478e923", kill_on_drop: false }`
[INFO] [stdout] 2e94b827a9eea358559a94609f0c3d8ff29b9012568c48e5ec4041449478e923
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdf40dc6b88615fe7fd450d7b8727668bfb460b819a5a5a0620a9087f1a8a577
[INFO] running `Command { std: "docker" "start" "-a" "fdf40dc6b88615fe7fd450d7b8727668bfb460b819a5a5a0620a9087f1a8a577", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling ringbuf v0.2.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling futures_ringbuf v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling log-derive v0.4.1
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.21s
[INFO] running `Command { std: "docker" "inspect" "fdf40dc6b88615fe7fd450d7b8727668bfb460b819a5a5a0620a9087f1a8a577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf40dc6b88615fe7fd450d7b8727668bfb460b819a5a5a0620a9087f1a8a577", kill_on_drop: false }`
[INFO] [stdout] fdf40dc6b88615fe7fd450d7b8727668bfb460b819a5a5a0620a9087f1a8a577
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc6cbd57f23981c4fd0b0fa1974d205fa0789e4fbe0ef6409abc49e1ae9d0c6
[INFO] running `Command { std: "docker" "start" "-a" "dbc6cbd57f23981c4fd0b0fa1974d205fa0789e4fbe0ef6409abc49e1ae9d0c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.4.1
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling assert_matches v1.5.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling pretty_assertions v0.7.2
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling ergo-pin v0.1.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling polling v2.0.3
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling log-derive v0.4.1
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling async-io v1.4.1
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-std v1.9.0
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling asynchronous-codec v0.6.0
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling futures-test v0.3.15
[INFO] [stderr]    Compiling futures_ringbuf v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 19.33s
[INFO] running `Command { std: "docker" "inspect" "dbc6cbd57f23981c4fd0b0fa1974d205fa0789e4fbe0ef6409abc49e1ae9d0c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc6cbd57f23981c4fd0b0fa1974d205fa0789e4fbe0ef6409abc49e1ae9d0c6", kill_on_drop: false }`
[INFO] [stdout] dbc6cbd57f23981c4fd0b0fa1974d205fa0789e4fbe0ef6409abc49e1ae9d0c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7e9a2e7e77c92f9c8abc3fc5577865888aed857aad4f3ac5a1baed90fe57eea
[INFO] running `Command { std: "docker" "start" "-a" "a7e9a2e7e77c92f9c8abc3fc5577865888aed857aad4f3ac5a1baed90fe57eea", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/futures_ringbuf-f408d037f845740e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test async_read::tests::async_read ... ok
[INFO] [stdout] test async_write::tests::async_write ... ok
[INFO] [stdout] test async_write::tests::close_wake_reader ... ok
[INFO] [stdout] test async_read::tests::closed_read ... ok
[INFO] [stdout] test async_write::tests::closed_write ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/endpoint.rs (/opt/rustwide/target/debug/deps/endpoint-eadd3df1ce2e6855)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test basic_usage ... ok
[INFO] [stdout] test close_read ... ok
[INFO] [stdout] test close_read_remaining ... ok
[INFO] [stdout] test close_wake_pending ... ok
[INFO] [stdout] test close_write ... ok
[INFO] [stdout] test drop_wake_pending ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/endpoint_tokio.rs (/opt/rustwide/target/debug/deps/endpoint_tokio-86fc63fe721af20e)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test basic_usage ... ok
[INFO] [stdout] test close_read_remaining ... ok
[INFO] [stdout] test close_read ... ok
[INFO] [stdout] test close_write ... ok
[INFO] [stdout] test close_wake_pending ... ok
[INFO] [stdout] test drop_wake_pending ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/wasm.rs (/opt/rustwide/target/debug/deps/wasm-50e3f51c7127334a)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/wasm_tokio.rs (/opt/rustwide/target/debug/deps/wasm_tokio-f530015dc38a9c5b)
[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 futures_ringbuf
[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] [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" "a7e9a2e7e77c92f9c8abc3fc5577865888aed857aad4f3ac5a1baed90fe57eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e9a2e7e77c92f9c8abc3fc5577865888aed857aad4f3ac5a1baed90fe57eea", kill_on_drop: false }`
[INFO] [stdout] a7e9a2e7e77c92f9c8abc3fc5577865888aed857aad4f3ac5a1baed90fe57eea