[INFO] cloning repository https://github.com/StrikeW/rust-lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StrikeW/rust-lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStrikeW%2Frust-lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStrikeW%2Frust-lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9782b15232ae4e1ac96cd7d8611dcabb0d4cc81a
[INFO] documenting StrikeW/rust-lab against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStrikeW%2Frust-lab" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StrikeW/rust-lab on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/StrikeW/rust-lab
[INFO] finished tweaking git repo https://github.com/StrikeW/rust-lab
[INFO] tweaked toml for git repo https://github.com/StrikeW/rust-lab written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/StrikeW/rust-lab 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.2.12
[INFO] [stderr]   Downloaded java-locator v0.1.5
[INFO] [stderr]   Downloaded hyper v0.14.22
[INFO] [stderr]   Downloaded tonic v0.7.2
[INFO] [stderr]   Downloaded libz-sys v1.1.10
[INFO] [stderr]   Downloaded j4rs v0.15.3
[INFO] [stderr]   Downloaded futures-async-stream-macro v0.2.7
[INFO] [stderr]   Downloaded futures-async-stream v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d07ede1609a6f53049c2a9b7c1a603cb55fab3f6e3361203c3045e9350bc4909
[INFO] running `Command { std: "docker" "start" "-a" "d07ede1609a6f53049c2a9b7c1a603cb55fab3f6e3361203c3045e9350bc4909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d07ede1609a6f53049c2a9b7c1a603cb55fab3f6e3361203c3045e9350bc4909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d07ede1609a6f53049c2a9b7c1a603cb55fab3f6e3361203c3045e9350bc4909", kill_on_drop: false }`
[INFO] [stdout] d07ede1609a6f53049c2a9b7c1a603cb55fab3f6e3361203c3045e9350bc4909
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37cbce730f2a1a1247fac0a3762a4ae8a36e74eb29f9f985e39c5c81319233ba
[INFO] running `Command { std: "docker" "start" "-a" "37cbce730f2a1a1247fac0a3762a4ae8a36e74eb29f9f985e39c5c81319233ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling syn v1.0.90
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[INFO] [stderr]     Checking pin-project-lite v0.2.8
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[INFO] [stderr]    Compiling futures-task v0.3.21
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[INFO] [stderr]    Compiling glob v0.3.1
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[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling indexmap v1.7.0
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[INFO] [stderr]    Compiling prost-derive v0.10.1
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[INFO] [stderr]    Compiling thiserror-impl v1.0.39
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[INFO] [stderr]    Compiling prost-types v0.10.1
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[INFO] [stderr]    Compiling fs_extra v1.3.0
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[INFO] [stderr]    Compiling j4rs v0.15.3
[INFO] [stderr]     Checking axum-core v0.2.9
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling tonic-build v0.7.2
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking h2 v0.3.20
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]    Compiling mysql_common v0.29.2
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking lexical v6.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking jni-sys v0.3.0
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking tower-http v0.3.5
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking saturating v0.1.0
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]    Compiling rust-lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lru v0.8.1
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]    Compiling futures-async-stream-macro v0.2.7
[INFO] [stderr]     Checking pem v1.1.1
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-async-stream-macro-0.2.7/src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(proc_macro_def_site)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking termcolor v1.1.3
[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 `futures-async-stream-macro` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "37cbce730f2a1a1247fac0a3762a4ae8a36e74eb29f9f985e39c5c81319233ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37cbce730f2a1a1247fac0a3762a4ae8a36e74eb29f9f985e39c5c81319233ba", kill_on_drop: false }`
[INFO] [stdout] 37cbce730f2a1a1247fac0a3762a4ae8a36e74eb29f9f985e39c5c81319233ba
