[INFO] fetching crate encoding-next 0.3.0...
[INFO] testing encoding-next-0.3.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate encoding-next 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate encoding-next 0.3.0 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 encoding-next 0.3.0
[INFO] finished tweaking crates.io crate encoding-next 0.3.0
[INFO] tweaked toml for crates.io crate encoding-next 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate encoding-next 0.3.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded encoding-next-index-japanese v1.20180106.0
[INFO] [stderr]   Downloaded encoding-next-index-korean v1.20180106.0
[INFO] [stderr]   Downloaded encoding-next-types v0.2.0
[INFO] [stderr]   Downloaded encoding-next-index-simpchinese v1.20180106.0
[INFO] [stderr]   Downloaded encoding-next-index-singlebyte v1.20180106.0
[INFO] [stderr]   Downloaded encoding-next-index-tradchinese v1.20180106.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6f98b40395017cfa4884b102c0f3371c03f05bcb787cac4924c129f41b8b8f80
[INFO] running `Command { std: "docker" "start" "-a" "6f98b40395017cfa4884b102c0f3371c03f05bcb787cac4924c129f41b8b8f80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f98b40395017cfa4884b102c0f3371c03f05bcb787cac4924c129f41b8b8f80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f98b40395017cfa4884b102c0f3371c03f05bcb787cac4924c129f41b8b8f80", kill_on_drop: false }`
[INFO] [stdout] 6f98b40395017cfa4884b102c0f3371c03f05bcb787cac4924c129f41b8b8f80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b6d2285598f8b848d1e93ac8ed8fb0e45901ed37c441ff5237f36e3a500ce7f
[INFO] running `Command { std: "docker" "start" "-a" "6b6d2285598f8b848d1e93ac8ed8fb0e45901ed37c441ff5237f36e3a500ce7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding-next-index-singlebyte v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-japanese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-korean v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-simpchinese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-tradchinese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-types v0.2.0
[INFO] [stderr]    Compiling encoding-next v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "6b6d2285598f8b848d1e93ac8ed8fb0e45901ed37c441ff5237f36e3a500ce7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b6d2285598f8b848d1e93ac8ed8fb0e45901ed37c441ff5237f36e3a500ce7f", kill_on_drop: false }`
[INFO] [stdout] 6b6d2285598f8b848d1e93ac8ed8fb0e45901ed37c441ff5237f36e3a500ce7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bca855bf7b1bba1d1abe5bbe0d7f262391b95ac5a51f4772b9ebb9cc6fc22651
[INFO] running `Command { std: "docker" "start" "-a" "bca855bf7b1bba1d1abe5bbe0d7f262391b95ac5a51f4772b9ebb9cc6fc22651", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding-next-index-korean v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-tradchinese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-singlebyte v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-japanese v1.20180106.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling encoding-next-types v0.2.0
[INFO] [stderr]    Compiling encoding-next-index-simpchinese v1.20180106.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling encoding-next v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:219:27
[INFO] [stdout]     |
[INFO] [stdout] 219 | #![cfg_attr(test, feature(test))] // lib stability features as per RFC #507
[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 compile `encoding-next` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bca855bf7b1bba1d1abe5bbe0d7f262391b95ac5a51f4772b9ebb9cc6fc22651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bca855bf7b1bba1d1abe5bbe0d7f262391b95ac5a51f4772b9ebb9cc6fc22651", kill_on_drop: false }`
[INFO] [stdout] bca855bf7b1bba1d1abe5bbe0d7f262391b95ac5a51f4772b9ebb9cc6fc22651
[INFO] testing encoding-next-0.3.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate encoding-next 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate encoding-next 0.3.0 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 encoding-next 0.3.0
[INFO] finished tweaking crates.io crate encoding-next 0.3.0
[INFO] tweaked toml for crates.io crate encoding-next 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate encoding-next 0.3.0 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7c303d4df3223b69852c6ff4379bd6c446c078514b604dd35d6d834d03e197f9
[INFO] running `Command { std: "docker" "start" "-a" "7c303d4df3223b69852c6ff4379bd6c446c078514b604dd35d6d834d03e197f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c303d4df3223b69852c6ff4379bd6c446c078514b604dd35d6d834d03e197f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c303d4df3223b69852c6ff4379bd6c446c078514b604dd35d6d834d03e197f9", kill_on_drop: false }`
[INFO] [stdout] 7c303d4df3223b69852c6ff4379bd6c446c078514b604dd35d6d834d03e197f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad2b6dbf71a427195f0ba418b0bf75473a0a5ddd0ba6e52f6fdd89ad8aebc5bd
[INFO] running `Command { std: "docker" "start" "-a" "ad2b6dbf71a427195f0ba418b0bf75473a0a5ddd0ba6e52f6fdd89ad8aebc5bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding-next-types v0.2.0
[INFO] [stderr]    Compiling encoding-next-index-japanese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-tradchinese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-simpchinese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-singlebyte v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-korean v1.20180106.0
[INFO] [stderr]    Compiling encoding-next v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "ad2b6dbf71a427195f0ba418b0bf75473a0a5ddd0ba6e52f6fdd89ad8aebc5bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad2b6dbf71a427195f0ba418b0bf75473a0a5ddd0ba6e52f6fdd89ad8aebc5bd", kill_on_drop: false }`
[INFO] [stdout] ad2b6dbf71a427195f0ba418b0bf75473a0a5ddd0ba6e52f6fdd89ad8aebc5bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d081a869b865f697cc60f4cd4aa1899ae0a4f81b8ee14281383ab3ea6ac2585
[INFO] running `Command { std: "docker" "start" "-a" "2d081a869b865f697cc60f4cd4aa1899ae0a4f81b8ee14281383ab3ea6ac2585", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding-next-index-simpchinese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-tradchinese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-singlebyte v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-types v0.2.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling encoding-next-index-japanese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-korean v1.20180106.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling encoding-next v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:219:27
[INFO] [stdout]     |
[INFO] [stdout] 219 | #![cfg_attr(test, feature(test))] // lib stability features as per RFC #507
[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 `encoding-next` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2d081a869b865f697cc60f4cd4aa1899ae0a4f81b8ee14281383ab3ea6ac2585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d081a869b865f697cc60f4cd4aa1899ae0a4f81b8ee14281383ab3ea6ac2585", kill_on_drop: false }`
[INFO] [stdout] 2d081a869b865f697cc60f4cd4aa1899ae0a4f81b8ee14281383ab3ea6ac2585
