[INFO] cloning repository https://github.com/Y-jiji/mail-list-walker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Y-jiji/mail-list-walker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FY-jiji%2Fmail-list-walker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FY-jiji%2Fmail-list-walker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80973c416177f030bda1f516585611f5f331fbb5
[INFO] documenting Y-jiji/mail-list-walker 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%2FY-jiji%2Fmail-list-walker" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Y-jiji/mail-list-walker 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/Y-jiji/mail-list-walker
[INFO] finished tweaking git repo https://github.com/Y-jiji/mail-list-walker
[INFO] tweaked toml for git repo https://github.com/Y-jiji/mail-list-walker written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Y-jiji/mail-list-walker 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]  Downloading crates ...
[INFO] [stderr]   Downloaded quoted_printable v0.4.7
[INFO] [stderr]   Downloaded email-encoding v0.2.0
[INFO] [stderr]   Downloaded lettre v0.10.4
[INFO] [stderr]   Downloaded rustix v0.37.8
[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] f5f5a81d25bc9ec31b48170250517571061ac23c5db0f6729f35685a8875727d
[INFO] running `Command { std: "docker" "start" "-a" "f5f5a81d25bc9ec31b48170250517571061ac23c5db0f6729f35685a8875727d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5f5a81d25bc9ec31b48170250517571061ac23c5db0f6729f35685a8875727d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5f5a81d25bc9ec31b48170250517571061ac23c5db0f6729f35685a8875727d", kill_on_drop: false }`
[INFO] [stdout] f5f5a81d25bc9ec31b48170250517571061ac23c5db0f6729f35685a8875727d
[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] 0f6f00ce4224077651f78e0cc7ead0405d25dafe9dd67c6a8e70b47987ded0e5
[INFO] running `Command { std: "docker" "start" "-a" "0f6f00ce4224077651f78e0cc7ead0405d25dafe9dd67c6a8e70b47987ded0e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling openssl-sys v0.9.84
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling openssl v0.10.49
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling serde_json v1.0.95
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking email-encoding v0.2.0
[INFO] [stderr]     Checking quick-xml v0.25.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking codepage v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking quoted_printable v0.4.7
[INFO] [stderr]     Checking email_address v0.2.4
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking zip v0.6.4
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking calamine v0.19.1
[INFO] [stderr]     Checking lettre v0.10.4
[INFO] [stderr]  Documenting email-list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_try_collect)]
[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 `email-list`
[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 bin --crate-name email_list src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=d38a36588a6ad4aa -L dependency=/opt/rustwide/target/debug/deps --extern calamine=/opt/rustwide/target/debug/deps/libcalamine-df029e141d902870.rmeta --extern lettre=/opt/rustwide/target/debug/deps/liblettre-5ced8689e80f94ff.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-dd59215d7cda98cd.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-bc1e73b69d9c7979.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0f6f00ce4224077651f78e0cc7ead0405d25dafe9dd67c6a8e70b47987ded0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f6f00ce4224077651f78e0cc7ead0405d25dafe9dd67c6a8e70b47987ded0e5", kill_on_drop: false }`
[INFO] [stdout] 0f6f00ce4224077651f78e0cc7ead0405d25dafe9dd67c6a8e70b47987ded0e5
[INFO] documenting Y-jiji/mail-list-walker against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FY-jiji%2Fmail-list-walker" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Y-jiji/mail-list-walker 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 git repo https://github.com/Y-jiji/mail-list-walker
[INFO] finished tweaking git repo https://github.com/Y-jiji/mail-list-walker
[INFO] tweaked toml for git repo https://github.com/Y-jiji/mail-list-walker written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Y-jiji/mail-list-walker 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" "+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] 706c49704bb1092c49fb65038fb7b0a2e746aebcb17f8b665e7c0f81b8095ddd
[INFO] running `Command { std: "docker" "start" "-a" "706c49704bb1092c49fb65038fb7b0a2e746aebcb17f8b665e7c0f81b8095ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "706c49704bb1092c49fb65038fb7b0a2e746aebcb17f8b665e7c0f81b8095ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "706c49704bb1092c49fb65038fb7b0a2e746aebcb17f8b665e7c0f81b8095ddd", kill_on_drop: false }`
[INFO] [stdout] 706c49704bb1092c49fb65038fb7b0a2e746aebcb17f8b665e7c0f81b8095ddd
[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] 668445a8eb6dc03a849a73b384bfdd5bd5cff11cbb3463e741ab9215023a0844
[INFO] running `Command { std: "docker" "start" "-a" "668445a8eb6dc03a849a73b384bfdd5bd5cff11cbb3463e741ab9215023a0844", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling openssl-sys v0.9.84
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling openssl v0.10.49
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.95
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking email-encoding v0.2.0
[INFO] [stderr]     Checking quick-xml v0.25.0
[INFO] [stderr]     Checking codepage v0.1.1
[INFO] [stderr]     Checking quoted_printable v0.4.7
[INFO] [stderr]     Checking email_address v0.2.4
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking zip v0.6.4
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking calamine v0.19.1
[INFO] [stderr]     Checking lettre v0.10.4
[INFO] [stderr]  Documenting email-list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_try_collect)]
[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 `email-list`
[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 bin --crate-name email_list src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=785084f4e6f537d1 -L dependency=/opt/rustwide/target/debug/deps --extern calamine=/opt/rustwide/target/debug/deps/libcalamine-b78a4483a02b1781.rmeta --extern lettre=/opt/rustwide/target/debug/deps/liblettre-e49a90ff946fdc2d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d0dc8154bb92fb48.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-495c4cec32566618.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "668445a8eb6dc03a849a73b384bfdd5bd5cff11cbb3463e741ab9215023a0844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668445a8eb6dc03a849a73b384bfdd5bd5cff11cbb3463e741ab9215023a0844", kill_on_drop: false }`
[INFO] [stdout] 668445a8eb6dc03a849a73b384bfdd5bd5cff11cbb3463e741ab9215023a0844
