[INFO] cloning repository https://github.com/Twister915/rustcord
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Twister915/rustcord" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwister915%2Frustcord", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwister915%2Frustcord'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a33702e7aceb04bc87fab351b0791ed62988445
[INFO] checking Twister915/rustcord against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwister915%2Frustcord" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Twister915/rustcord 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] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Twister915/rustcord
[INFO] finished tweaking git repo https://github.com/Twister915/rustcord
[INFO] tweaked toml for git repo https://github.com/Twister915/rustcord written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Twister915/rustcord already has a lockfile, it will not be regenerated
[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] [stderr]     Updating git repository `https://github.com/Twister915/mctokio`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-executor v0.3.6
[INFO] [stderr]   Downloaded futures v0.3.6
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[INFO] [stderr]   Downloaded anyhow v1.0.33
[INFO] [stderr]   Downloaded num-iter v0.1.41
[INFO] [stderr]   Downloaded object v0.21.1
[INFO] [stderr]   Downloaded futures-macro v0.3.6
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[INFO] [stderr]   Downloaded once_cell v1.4.1
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.68
[INFO] [stderr]   Downloaded futures-channel v0.3.6
[INFO] [stderr]   Downloaded futures-util v0.3.6
[INFO] [stderr]   Downloaded socket2 v0.3.15
[INFO] [stderr]   Downloaded cipher v0.2.1
[INFO] [stderr]   Downloaded flate2 v1.0.18
[INFO] [stderr]   Downloaded futures-sink v0.3.6
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.68
[INFO] [stderr]   Downloaded backtrace v0.3.53
[INFO] [stderr]   Downloaded tracing v0.1.21
[INFO] [stderr]   Downloaded rsa v0.2.0
[INFO] [stderr]   Downloaded js-sys v0.3.45
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.68
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[INFO] [stderr]   Downloaded encoding_rs v0.8.24
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.18
[INFO] [stderr]   Downloaded num-bigint-dig v0.6.0
[INFO] [stderr]   Downloaded hyper v0.13.8
[INFO] [stderr]   Downloaded reqwest v0.10.8
[INFO] [stderr]   Downloaded simple_asn1 v0.4.1
[INFO] [stderr]   Downloaded futures-task v0.3.6
[INFO] [stderr]   Downloaded rsa-der v0.2.1
[INFO] [stderr]   Downloaded aes-soft v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 4d0688563302a300a600fd25064c42b1ed659413df66cb75692585aff6a533eb
[INFO] running `Command { std: "docker" "start" "-a" "4d0688563302a300a600fd25064c42b1ed659413df66cb75692585aff6a533eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d0688563302a300a600fd25064c42b1ed659413df66cb75692585aff6a533eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0688563302a300a600fd25064c42b1ed659413df66cb75692585aff6a533eb", kill_on_drop: false }`
[INFO] [stdout] 4d0688563302a300a600fd25064c42b1ed659413df66cb75692585aff6a533eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52dafe583a8c80acdb1789bbc005985fff31f5efeeea20a7b1760acbdcd3a6e2
[INFO] running `Command { std: "docker" "start" "-a" "52dafe583a8c80acdb1789bbc005985fff31f5efeeea20a7b1760acbdcd3a6e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking spin v0.5.2
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[INFO] [stderr]    Compiling memchr v2.3.3
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[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling serde v1.0.117
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[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
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[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking object v0.21.1
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[INFO] [stderr]    Compiling getrandom v0.1.15
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[INFO] [stderr]    Compiling ryu v1.0.5
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[INFO] [stderr]    Compiling crc32fast v1.2.1
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[INFO] [stderr]    Compiling miniz_oxide v0.4.3
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[INFO] [stderr]    Compiling num-bigint-dig v0.6.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
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[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
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[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking cipher v0.2.1
[INFO] [stderr]     Checking aes-soft v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rsa-der v0.2.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking mcproto-rs v0.2.0 (https://github.com/Twister915/mcproto-rs?branch=master#e94567e0)
[INFO] [stderr]     Checking rsa v0.2.0
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/mcproto-rs-51369d3f76159bf8/e94567e/src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "bench", feature(test))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcproto-rs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "52dafe583a8c80acdb1789bbc005985fff31f5efeeea20a7b1760acbdcd3a6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52dafe583a8c80acdb1789bbc005985fff31f5efeeea20a7b1760acbdcd3a6e2", kill_on_drop: false }`
[INFO] [stdout] 52dafe583a8c80acdb1789bbc005985fff31f5efeeea20a7b1760acbdcd3a6e2
