[INFO] fetching crate encoding-next 0.3.0...
[INFO] testing encoding-next-0.3.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate encoding-next 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate encoding-next 0.3.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "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-2-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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-singlebyte v1.20180106.0
[INFO] [stderr]   Downloaded encoding-next-index-tradchinese v1.20180106.0
[INFO] [stderr]   Downloaded encoding-next-index-simpchinese v1.20180106.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee3bf7c25d97ae574ac110d9b2e766cf048c49aa60c91b32d1b2c04db0651e94
[INFO] running `Command { std: "docker" "start" "-a" "ee3bf7c25d97ae574ac110d9b2e766cf048c49aa60c91b32d1b2c04db0651e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee3bf7c25d97ae574ac110d9b2e766cf048c49aa60c91b32d1b2c04db0651e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee3bf7c25d97ae574ac110d9b2e766cf048c49aa60c91b32d1b2c04db0651e94", kill_on_drop: false }`
[INFO] [stdout] ee3bf7c25d97ae574ac110d9b2e766cf048c49aa60c91b32d1b2c04db0651e94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fe3b5976a6e2f58d68754e3107e8897ef86b35cb3ebe906682104c392f978b2
[INFO] running `Command { std: "docker" "start" "-a" "5fe3b5976a6e2f58d68754e3107e8897ef86b35cb3ebe906682104c392f978b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding-next-index-japanese 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 encoding-next-index-tradchinese v1.20180106.0
[INFO] [stderr]    Compiling encoding-next-index-simpchinese 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 1.31s
[INFO] running `Command { std: "docker" "inspect" "5fe3b5976a6e2f58d68754e3107e8897ef86b35cb3ebe906682104c392f978b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fe3b5976a6e2f58d68754e3107e8897ef86b35cb3ebe906682104c392f978b2", kill_on_drop: false }`
[INFO] [stdout] 5fe3b5976a6e2f58d68754e3107e8897ef86b35cb3ebe906682104c392f978b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6dbc20464243b585f013b94bcc93fd5183a8f954bc83200370fc39f2011d70d
[INFO] running `Command { std: "docker" "start" "-a" "e6dbc20464243b585f013b94bcc93fd5183a8f954bc83200370fc39f2011d70d", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding-next-index-tradchinese v1.20180106.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling encoding-next-index-singlebyte v1.20180106.0
[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-simpchinese 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 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` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e6dbc20464243b585f013b94bcc93fd5183a8f954bc83200370fc39f2011d70d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6dbc20464243b585f013b94bcc93fd5183a8f954bc83200370fc39f2011d70d", kill_on_drop: false }`
[INFO] [stdout] e6dbc20464243b585f013b94bcc93fd5183a8f954bc83200370fc39f2011d70d
