[INFO] fetching crate copernica-protocols 0.1.0...
[INFO] documenting copernica-protocols-0.1.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate copernica-protocols 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate copernica-protocols 0.1.0 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 crates.io crate copernica-protocols 0.1.0
[INFO] finished tweaking crates.io crate copernica-protocols 0.1.0
[INFO] tweaked toml for crates.io crate copernica-protocols 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded copernica-packets v0.1.0
[INFO] [stderr]   Downloaded bech32 v0.7.3
[INFO] [stderr]   Downloaded fern v0.5.9
[INFO] [stderr]   Downloaded copernica-common v0.1.0
[INFO] [stderr]   Downloaded keynesis v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1d9da4fe54c47d824f88b00e092dc2a277fb6a1a8e70885831aa979ebc7f9046
[INFO] running `Command { std: "docker" "start" "-a" "1d9da4fe54c47d824f88b00e092dc2a277fb6a1a8e70885831aa979ebc7f9046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d9da4fe54c47d824f88b00e092dc2a277fb6a1a8e70885831aa979ebc7f9046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9da4fe54c47d824f88b00e092dc2a277fb6a1a8e70885831aa979ebc7f9046", kill_on_drop: false }`
[INFO] [stdout] 1d9da4fe54c47d824f88b00e092dc2a277fb6a1a8e70885831aa979ebc7f9046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1eaf94f5032c4157083177c1e5bbda73e1104d401ba5dbe56a05828a9c09e3fb
[INFO] running `Command { std: "docker" "start" "-a" "1eaf94f5032c4157083177c1e5bbda73e1104d401ba5dbe56a05828a9c09e3fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking bech32 v0.7.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking crossbeam-channel v0.5.10
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stderr]     Checking copernica-common v0.1.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking keynesis v1.4.0
[INFO] [stderr]     Checking copernica-packets v0.1.0
[INFO] [stderr]  Documenting copernica-protocols v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 document `copernica-protocols`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name copernica_protocols src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1bf5369957c554e4 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-fd85f3ee78419db7.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-a2b6de3bb15200c7.rmeta --extern copernica_common=/opt/rustwide/target/debug/deps/libcopernica_common-e3a019008e1f3064.rmeta --extern copernica_packets=/opt/rustwide/target/debug/deps/libcopernica_packets-c40c6cfbb9650056.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-bcc3f90133606cf8.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-adcbaf8a98132d5a.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1eaf94f5032c4157083177c1e5bbda73e1104d401ba5dbe56a05828a9c09e3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eaf94f5032c4157083177c1e5bbda73e1104d401ba5dbe56a05828a9c09e3fb", kill_on_drop: false }`
[INFO] [stdout] 1eaf94f5032c4157083177c1e5bbda73e1104d401ba5dbe56a05828a9c09e3fb
[INFO] documenting copernica-protocols-0.1.0 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate copernica-protocols 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate copernica-protocols 0.1.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate copernica-protocols 0.1.0
[INFO] finished tweaking crates.io crate copernica-protocols 0.1.0
[INFO] tweaked toml for crates.io crate copernica-protocols 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fbabbc4c46c3557a231aa735445e0d5322a479bdad62f69c6fbbb5dde1064c3
[INFO] running `Command { std: "docker" "start" "-a" "5fbabbc4c46c3557a231aa735445e0d5322a479bdad62f69c6fbbb5dde1064c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fbabbc4c46c3557a231aa735445e0d5322a479bdad62f69c6fbbb5dde1064c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fbabbc4c46c3557a231aa735445e0d5322a479bdad62f69c6fbbb5dde1064c3", kill_on_drop: false }`
[INFO] [stdout] 5fbabbc4c46c3557a231aa735445e0d5322a479bdad62f69c6fbbb5dde1064c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2ee362b316f729acf62a28521df40870ad1c7c359224652bca908103c06a2ea
[INFO] running `Command { std: "docker" "start" "-a" "e2ee362b316f729acf62a28521df40870ad1c7c359224652bca908103c06a2ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking bech32 v0.7.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking crossbeam-channel v0.5.10
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stderr]     Checking copernica-common v0.1.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking keynesis v1.4.0
[INFO] [stderr]     Checking copernica-packets v0.1.0
[INFO] [stderr]  Documenting copernica-protocols v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 document `copernica-protocols`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name copernica_protocols src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8a00f3daf85d1ac4 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-a3466ae9a2f9d580.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-3defaa2caa022baf.rmeta --extern copernica_common=/opt/rustwide/target/debug/deps/libcopernica_common-99b3b36e016ac033.rmeta --extern copernica_packets=/opt/rustwide/target/debug/deps/libcopernica_packets-8dedf8064fe69cd9.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-5a97556dde1b8dc2.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-7502f808f5fce876.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e2ee362b316f729acf62a28521df40870ad1c7c359224652bca908103c06a2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2ee362b316f729acf62a28521df40870ad1c7c359224652bca908103c06a2ea", kill_on_drop: false }`
[INFO] [stdout] e2ee362b316f729acf62a28521df40870ad1c7c359224652bca908103c06a2ea
