[INFO] fetching crate pipe-chain 0.1.1...
[INFO] testing pipe-chain-0.1.1 against 1.76.0 for beta-1.77-1
[INFO] extracting crate pipe-chain 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate pipe-chain 0.1.1 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] started tweaking crates.io crate pipe-chain 0.1.1
[INFO] finished tweaking crates.io crate pipe-chain 0.1.1
[INFO] tweaked toml for crates.io crate pipe-chain 0.1.1 written to /workspace/builds/worker-7-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 tuplify v1.1.4
[INFO] [stderr]   Downloaded fatal-error v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 50dea68ade493de14132d05f0034bfe425b8c4fb703959d7653ccad323caefa2
[INFO] running `Command { std: "docker" "start" "-a" "50dea68ade493de14132d05f0034bfe425b8c4fb703959d7653ccad323caefa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50dea68ade493de14132d05f0034bfe425b8c4fb703959d7653ccad323caefa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50dea68ade493de14132d05f0034bfe425b8c4fb703959d7653ccad323caefa2", kill_on_drop: false }`
[INFO] [stdout] 50dea68ade493de14132d05f0034bfe425b8c4fb703959d7653ccad323caefa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2de26f1fd8da7c006472e636e0a27da3025e7f71905b35b0605b759faef4a8db
[INFO] running `Command { std: "docker" "start" "-a" "2de26f1fd8da7c006472e636e0a27da3025e7f71905b35b0605b759faef4a8db", kill_on_drop: false }`
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling fatal-error v1.0.1
[INFO] [stderr]    Compiling tuplify v1.1.4
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling pipe-chain v0.1.1 (/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(round_char_boundary)]
[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 compile `pipe-chain` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2de26f1fd8da7c006472e636e0a27da3025e7f71905b35b0605b759faef4a8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2de26f1fd8da7c006472e636e0a27da3025e7f71905b35b0605b759faef4a8db", kill_on_drop: false }`
[INFO] [stdout] 2de26f1fd8da7c006472e636e0a27da3025e7f71905b35b0605b759faef4a8db
[INFO] testing pipe-chain-0.1.1 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate pipe-chain 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate pipe-chain 0.1.1 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pipe-chain 0.1.1
[INFO] finished tweaking crates.io crate pipe-chain 0.1.1
[INFO] tweaked toml for crates.io crate pipe-chain 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 851d3f796ad0fb21d5902ae0bfc2132cc53a8aefe5dd128d2ac4bbaa69450150
[INFO] running `Command { std: "docker" "start" "-a" "851d3f796ad0fb21d5902ae0bfc2132cc53a8aefe5dd128d2ac4bbaa69450150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "851d3f796ad0fb21d5902ae0bfc2132cc53a8aefe5dd128d2ac4bbaa69450150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "851d3f796ad0fb21d5902ae0bfc2132cc53a8aefe5dd128d2ac4bbaa69450150", kill_on_drop: false }`
[INFO] [stdout] 851d3f796ad0fb21d5902ae0bfc2132cc53a8aefe5dd128d2ac4bbaa69450150
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3ee08167927c0ba458a4c52c1ba8134db3575774990b0d8486471f33e9f145e
[INFO] running `Command { std: "docker" "start" "-a" "b3ee08167927c0ba458a4c52c1ba8134db3575774990b0d8486471f33e9f145e", kill_on_drop: false }`
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling fatal-error v1.0.1
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling tuplify v1.1.4
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling pipe-chain v0.1.1 (/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(round_char_boundary)]
[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 compile `pipe-chain` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b3ee08167927c0ba458a4c52c1ba8134db3575774990b0d8486471f33e9f145e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3ee08167927c0ba458a4c52c1ba8134db3575774990b0d8486471f33e9f145e", kill_on_drop: false }`
[INFO] [stdout] b3ee08167927c0ba458a4c52c1ba8134db3575774990b0d8486471f33e9f145e
