[INFO] cloning repository https://github.com/spaarmann/notion-books
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spaarmann/notion-books" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspaarmann%2Fnotion-books", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspaarmann%2Fnotion-books'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3def29989f48309396f5befecbecde43837da932
[INFO] testing spaarmann/notion-books against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspaarmann%2Fnotion-books" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spaarmann/notion-books on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spaarmann/notion-books
[INFO] finished tweaking git repo https://github.com/spaarmann/notion-books
[INFO] tweaked toml for git repo https://github.com/spaarmann/notion-books written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/spaarmann/notion-books already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded is_ci v1.1.1
[INFO] [stderr]   Downloaded owo-colors v3.2.0
[INFO] [stderr]   Downloaded supports-color v1.3.0
[INFO] [stderr]   Downloaded supports-hyperlinks v1.2.0
[INFO] [stderr]   Downloaded knuffel v1.1.0
[INFO] [stderr]   Downloaded miette-derive v3.3.0
[INFO] [stderr]   Downloaded miette v3.3.0
[INFO] [stderr]   Downloaded chumsky v0.8.0
[INFO] [stderr]   Downloaded knuffel-derive v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c54344823d1461f4d28e6aa291c8874d42345083543ff06ca4162a4bbc4381e
[INFO] running `Command { std: "docker" "start" "-a" "0c54344823d1461f4d28e6aa291c8874d42345083543ff06ca4162a4bbc4381e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c54344823d1461f4d28e6aa291c8874d42345083543ff06ca4162a4bbc4381e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c54344823d1461f4d28e6aa291c8874d42345083543ff06ca4162a4bbc4381e", kill_on_drop: false }`
[INFO] [stdout] 0c54344823d1461f4d28e6aa291c8874d42345083543ff06ca4162a4bbc4381e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be7f2eb7296644aae744044e25b4328a0ac3c6d190349acf64100145f82f13e8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "be7f2eb7296644aae744044e25b4328a0ac3c6d190349acf64100145f82f13e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling smawk v0.3.1
[INFO] [stderr]    Compiling is_ci v1.1.1
[INFO] [stderr]    Compiling owo-colors v3.2.0
[INFO] [stderr]    Compiling chumsky v0.8.0
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling supports-unicode v1.0.2
[INFO] [stderr]    Compiling supports-hyperlinks v1.2.0
[INFO] [stderr]    Compiling unicode-linebreak v0.1.2
[INFO] [stderr]    Compiling supports-color v1.3.0
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling miette-derive v3.3.0
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]    Compiling knuffel-derive v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling miette v3.3.0
[INFO] [stderr]    Compiling clap v3.1.6
[INFO] [stderr]    Compiling knuffel v1.1.0
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.3.12
[INFO] [stderr]    Compiling hyper v0.14.17
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.9
[INFO] [stderr]    Compiling notion-books 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_else)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(iterator_try_collect)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `notion-books` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "be7f2eb7296644aae744044e25b4328a0ac3c6d190349acf64100145f82f13e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be7f2eb7296644aae744044e25b4328a0ac3c6d190349acf64100145f82f13e8", kill_on_drop: false }`
[INFO] [stdout] be7f2eb7296644aae744044e25b4328a0ac3c6d190349acf64100145f82f13e8