[INFO] cloning repository https://github.com/h2gb/h2datatype
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/h2gb/h2datatype" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh2gb%2Fh2datatype", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh2gb%2Fh2datatype'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8d0cea66419f0798e1ef5a62553490d74adf18f
[INFO] testing h2gb/h2datatype against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh2gb%2Fh2datatype" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/h2gb/h2datatype on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/h2gb/h2datatype
[INFO] finished tweaking git repo https://github.com/h2gb/h2datatype
[INFO] tweaked toml for git repo https://github.com/h2gb/h2datatype written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/h2gb/h2datatype already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/h2gb/sized_number.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-error v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3d13c90745da09b29126296eeb79623f6223748c980782e4dadebf970197ad0
[INFO] running `Command { std: "docker" "start" "-a" "c3d13c90745da09b29126296eeb79623f6223748c980782e4dadebf970197ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3d13c90745da09b29126296eeb79623f6223748c980782e4dadebf970197ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d13c90745da09b29126296eeb79623f6223748c980782e4dadebf970197ad0", kill_on_drop: false }`
[INFO] [stdout] c3d13c90745da09b29126296eeb79623f6223748c980782e4dadebf970197ad0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 053bfa27e2896de26dfe6556e9ecbb94142d92d143964de47c1ada3cf72db8ae
[INFO] running `Command { std: "docker" "start" "-a" "053bfa27e2896de26dfe6556e9ecbb94142d92d143964de47c1ada3cf72db8ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling simple-error v0.2.2
[INFO] [stderr]    Compiling macaddr v1.0.1
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling ron v0.5.1
[INFO] [stderr]    Compiling sized_number v0.0.0 (https://github.com/h2gb/sized_number.git?branch=dev#eee96442)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/sized_number-9092328b895bd835/eee9644/src/lib.rs:64:1
[INFO] [stdout]    |
[INFO] [stdout] 64 | #![feature(assoc_char_funcs)]
[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 `sized_number` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "053bfa27e2896de26dfe6556e9ecbb94142d92d143964de47c1ada3cf72db8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "053bfa27e2896de26dfe6556e9ecbb94142d92d143964de47c1ada3cf72db8ae", kill_on_drop: false }`
[INFO] [stdout] 053bfa27e2896de26dfe6556e9ecbb94142d92d143964de47c1ada3cf72db8ae