[INFO] fetching crate async-utf8-decoder 0.3.0...
[INFO] testing async-utf8-decoder-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate async-utf8-decoder 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate async-utf8-decoder 0.3.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-utf8-decoder 0.3.0
[INFO] finished tweaking crates.io crate async-utf8-decoder 0.3.0
[INFO] tweaked toml for crates.io crate async-utf8-decoder 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 07372d9e5142453887b451f1e1f9dd34f53f880dbc7216506fc3830fafb94717
[INFO] running `Command { std: "docker" "start" "-a" "07372d9e5142453887b451f1e1f9dd34f53f880dbc7216506fc3830fafb94717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07372d9e5142453887b451f1e1f9dd34f53f880dbc7216506fc3830fafb94717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07372d9e5142453887b451f1e1f9dd34f53f880dbc7216506fc3830fafb94717", kill_on_drop: false }`
[INFO] [stdout] 07372d9e5142453887b451f1e1f9dd34f53f880dbc7216506fc3830fafb94717
[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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afd7d3c5ef02f9eb742e8266009c9bdf09336d695b97dfef1b1ecd6a34eb1978
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "afd7d3c5ef02f9eb742e8266009c9bdf09336d695b97dfef1b1ecd6a34eb1978", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling async-utf8-decoder v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.17s
[INFO] running `Command { std: "docker" "inspect" "afd7d3c5ef02f9eb742e8266009c9bdf09336d695b97dfef1b1ecd6a34eb1978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd7d3c5ef02f9eb742e8266009c9bdf09336d695b97dfef1b1ecd6a34eb1978", kill_on_drop: false }`
[INFO] [stdout] afd7d3c5ef02f9eb742e8266009c9bdf09336d695b97dfef1b1ecd6a34eb1978
[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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88a0a93853cd047bb3b933b5793b9368aab5d1f7943cf0fc689cd808c44056b1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "88a0a93853cd047bb3b933b5793b9368aab5d1f7943cf0fc689cd808c44056b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-await-test-macro v0.3.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling futures-await-test v0.3.0
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling async-utf8-decoder v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 24.33s
[INFO] running `Command { std: "docker" "inspect" "88a0a93853cd047bb3b933b5793b9368aab5d1f7943cf0fc689cd808c44056b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a0a93853cd047bb3b933b5793b9368aab5d1f7943cf0fc689cd808c44056b1", kill_on_drop: false }`
[INFO] [stdout] 88a0a93853cd047bb3b933b5793b9368aab5d1f7943cf0fc689cd808c44056b1
[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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ca16fa785a46ec1005eb38a411f29ff6f782f9286f497704db5b9d78b17f14e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8ca16fa785a46ec1005eb38a411f29ff6f782f9286f497704db5b9d78b17f14e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_utf8_decoder-5c88cdd18ac2a5e3)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test decoder::tests::decoder_decode_background ... ok
[INFO] [stdout] test decoder::tests::decoder_decode_1byte_character ... ok
[INFO] [stdout] test decoder::tests::decoder_decode_ok_with_minimum_capacity ... ok
[INFO] [stdout] test decoder::tests::decoder_decode_ok ... ok
[INFO] [stdout] test decoder::tests::decoder_decode_2byte_character ... ok
[INFO] [stdout] test decoder::tests::decoder_decode_demo ... ok
[INFO] [stdout] test decoder::tests::decoder_decode_3byte_character ... ok
[INFO] [stdout] test decoder::tests::decoder_decode_4byte_character ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async-utf8-decoder
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.41s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8ca16fa785a46ec1005eb38a411f29ff6f782f9286f497704db5b9d78b17f14e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca16fa785a46ec1005eb38a411f29ff6f782f9286f497704db5b9d78b17f14e", kill_on_drop: false }`
[INFO] [stdout] 8ca16fa785a46ec1005eb38a411f29ff6f782f9286f497704db5b9d78b17f14e