[INFO] fetching crate rsql-rs 0.2.0...
[INFO] documenting rsql-rs-0.2.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate rsql-rs 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate rsql-rs 0.2.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate rsql-rs 0.2.0
[INFO] finished tweaking crates.io crate rsql-rs 0.2.0
[INFO] tweaked toml for crates.io crate rsql-rs 0.2.0 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" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha-1 v0.7.0
[INFO] [stderr]   Downloaded frunk_proc_macros v0.0.5
[INFO] [stderr]   Downloaded digest v0.7.6
[INFO] [stderr]   Downloaded frunk_proc_macros_impl v0.0.5
[INFO] [stderr]   Downloaded strum v0.16.0
[INFO] [stderr]   Downloaded strum_macros v0.16.0
[INFO] [stderr]   Downloaded generic-array v0.9.1
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded frunk_derives v0.3.2
[INFO] [stderr]   Downloaded frunk_proc_macro_helpers v0.0.5
[INFO] [stderr]   Downloaded pest_derive v2.0.1
[INFO] [stderr]   Downloaded pest_generator v2.0.0
[INFO] [stderr]   Downloaded pest_meta v2.0.3
[INFO] [stderr]   Downloaded pest v2.0.2
[INFO] [stderr]   Downloaded frunk_core v0.3.2
[INFO] [stderr]   Downloaded frunk v0.3.2
[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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e62f36a131d5196919ea3adfeaf3173f56843c71fdd2fe1b1c3a4b88baaae57
[INFO] running `Command { std: "docker" "start" "-a" "2e62f36a131d5196919ea3adfeaf3173f56843c71fdd2fe1b1c3a4b88baaae57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e62f36a131d5196919ea3adfeaf3173f56843c71fdd2fe1b1c3a4b88baaae57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e62f36a131d5196919ea3adfeaf3173f56843c71fdd2fe1b1c3a4b88baaae57", kill_on_drop: false }`
[INFO] [stdout] 2e62f36a131d5196919ea3adfeaf3173f56843c71fdd2fe1b1c3a4b88baaae57
[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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3301f419463c0ae92140b82334b3945af035402f520c8c432e03cf604925df4
[INFO] running `Command { std: "docker" "start" "-a" "d3301f419463c0ae92140b82334b3945af035402f520c8c432e03cf604925df4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling frunk_core v0.3.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling pest v2.0.2
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]    Compiling pest_meta v2.0.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling pest_generator v2.0.0
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.5
[INFO] [stderr]    Compiling frunk_derives v0.3.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]     Checking strum v0.16.0
[INFO] [stderr]     Checking frunk_proc_macros v0.0.5
[INFO] [stderr]     Checking frunk v0.3.2
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]  Documenting rsql-rs v0.2.0 (/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(backtrace)]
[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 `rsql-rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name rsql_rs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f01c0977f44c3bea -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-d4cbb8ebf8c675b1.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3bfa22c01add3820.rmeta --extern frunk=/opt/rustwide/target/debug/deps/libfrunk-291854531c62fc89.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-900704033b235124.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-7fe0807640814e58.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-87d1ebb97698bd6f.rmeta --extern pest_derive=/opt/rustwide/target/debug/deps/libpest_derive-de7feba2d26106fc.so --extern regex=/opt/rustwide/target/debug/deps/libregex-c4eddf7df4eb8638.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0eedd91a8b2e7c2c.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-7ddb81ea6f930908.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-a395536bc19a2b54.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-3a7b81c3020542e8.so --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b049f132ddfc695e.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d3301f419463c0ae92140b82334b3945af035402f520c8c432e03cf604925df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3301f419463c0ae92140b82334b3945af035402f520c8c432e03cf604925df4", kill_on_drop: false }`
[INFO] [stdout] d3301f419463c0ae92140b82334b3945af035402f520c8c432e03cf604925df4
