[INFO] fetching crate discrete_range_map 0.5.2...
[INFO] documenting discrete_range_map-0.5.2 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate discrete_range_map 0.5.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate discrete_range_map 0.5.2 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 discrete_range_map 0.5.2
[INFO] finished tweaking crates.io crate discrete_range_map 0.5.2
[INFO] tweaked toml for crates.io crate discrete_range_map 0.5.2 written to /workspace/builds/worker-3-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 btree_monstrousity v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3bcc1a49022dc2ac47627d721ec2e5c36f39f3af0711ad9cef5aa16ced6b54d2
[INFO] running `Command { std: "docker" "start" "-a" "3bcc1a49022dc2ac47627d721ec2e5c36f39f3af0711ad9cef5aa16ced6b54d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bcc1a49022dc2ac47627d721ec2e5c36f39f3af0711ad9cef5aa16ced6b54d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bcc1a49022dc2ac47627d721ec2e5c36f39f3af0711ad9cef5aa16ced6b54d2", kill_on_drop: false }`
[INFO] [stdout] 3bcc1a49022dc2ac47627d721ec2e5c36f39f3af0711ad9cef5aa16ced6b54d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5f3a2b71d9acc3c5d030736d631dc41245106dbb9b960315a1b252b1b867ad84
[INFO] running `Command { std: "docker" "start" "-a" "5f3a2b71d9acc3c5d030736d631dc41245106dbb9b960315a1b252b1b867ad84", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking btree_monstrousity v0.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]  Documenting discrete_range_map v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:264:1
[INFO] [stdout]     |
[INFO] [stdout] 264 | #![feature(let_chains)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:265:1
[INFO] [stdout]     |
[INFO] [stdout] 265 | #![feature(btree_cursors)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:266:1
[INFO] [stdout]     |
[INFO] [stdout] 266 | #![feature(step_trait)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `discrete_range_map`
[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=2021 --crate-type lib --crate-name discrete_range_map src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4855a9f12f3a1349 -L dependency=/opt/rustwide/target/debug/deps --extern btree_monstrousity=/opt/rustwide/target/debug/deps/libbtree_monstrousity-784c639b679a84d5.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-19ab30b8af571b4d.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-62d88e9243481957.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-319bf41ec1876518.rmeta --cap-lints=warn --crate-version 0.5.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5f3a2b71d9acc3c5d030736d631dc41245106dbb9b960315a1b252b1b867ad84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3a2b71d9acc3c5d030736d631dc41245106dbb9b960315a1b252b1b867ad84", kill_on_drop: false }`
[INFO] [stdout] 5f3a2b71d9acc3c5d030736d631dc41245106dbb9b960315a1b252b1b867ad84
[INFO] documenting discrete_range_map-0.5.2 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate discrete_range_map 0.5.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate discrete_range_map 0.5.2 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 discrete_range_map 0.5.2
[INFO] finished tweaking crates.io crate discrete_range_map 0.5.2
[INFO] tweaked toml for crates.io crate discrete_range_map 0.5.2 written to /workspace/builds/worker-3-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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8aebd8b9e45c8d7c7dfecb844df64b00d3660519644aa58a87ee3373559e2572
[INFO] running `Command { std: "docker" "start" "-a" "8aebd8b9e45c8d7c7dfecb844df64b00d3660519644aa58a87ee3373559e2572", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8aebd8b9e45c8d7c7dfecb844df64b00d3660519644aa58a87ee3373559e2572", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aebd8b9e45c8d7c7dfecb844df64b00d3660519644aa58a87ee3373559e2572", kill_on_drop: false }`
[INFO] [stdout] 8aebd8b9e45c8d7c7dfecb844df64b00d3660519644aa58a87ee3373559e2572
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5e154b431ad45f6a0abfa604e8abd0e63bd964c4fa86cd1dd52fb78afaac8998
[INFO] running `Command { std: "docker" "start" "-a" "5e154b431ad45f6a0abfa604e8abd0e63bd964c4fa86cd1dd52fb78afaac8998", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking btree_monstrousity v0.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]  Documenting discrete_range_map v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:264:1
[INFO] [stdout]     |
[INFO] [stdout] 264 | #![feature(let_chains)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:265:1
[INFO] [stdout]     |
[INFO] [stdout] 265 | #![feature(btree_cursors)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:266:1
[INFO] [stdout]     |
[INFO] [stdout] 266 | #![feature(step_trait)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `discrete_range_map`
[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=2021 --crate-type lib --crate-name discrete_range_map src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=73f2363982b3f2e4 -L dependency=/opt/rustwide/target/debug/deps --extern btree_monstrousity=/opt/rustwide/target/debug/deps/libbtree_monstrousity-6a9e38e32051d542.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-23a3e5cb7fe3b37b.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-3bc512ee669b0557.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-da6f26dbfe339ccf.rmeta --cap-lints=warn --crate-version 0.5.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5e154b431ad45f6a0abfa604e8abd0e63bd964c4fa86cd1dd52fb78afaac8998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e154b431ad45f6a0abfa604e8abd0e63bd964c4fa86cd1dd52fb78afaac8998", kill_on_drop: false }`
[INFO] [stdout] 5e154b431ad45f6a0abfa604e8abd0e63bd964c4fa86cd1dd52fb78afaac8998
