[INFO] crate spongedown 0.4.1 is already in cache
[INFO] testing spongedown-0.4.1 against 1.45.2 for beta-1.46-1
[INFO] extracting crate spongedown 0.4.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate spongedown 0.4.1 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spongedown 0.4.1
[INFO] finished tweaking crates.io crate spongedown 0.4.1
[INFO] tweaked toml for crates.io crate spongedown 0.4.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate spongedown 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7981d1358ef6da5b339302703bac9b6d6d945914389e34124f167422396eda8a
[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" "7981d1358ef6da5b339302703bac9b6d6d945914389e34124f167422396eda8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7981d1358ef6da5b339302703bac9b6d6d945914389e34124f167422396eda8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7981d1358ef6da5b339302703bac9b6d6d945914389e34124f167422396eda8a", kill_on_drop: false }`
[INFO] [stdout] 7981d1358ef6da5b339302703bac9b6d6d945914389e34124f167422396eda8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24e7c5384d86d2444291efe2eb4ea63360ed02d24f483c2666949e005104df11
[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" "24e7c5384d86d2444291efe2eb4ea63360ed02d24f483c2666949e005104df11", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling downcast-rs v1.1.1
[INFO] [stderr]    Compiling xml-rs v0.8.2
[INFO] [stderr]    Compiling pom v3.1.0
[INFO] [stderr]    Compiling url_path v0.1.3
[INFO] [stderr]    Compiling file v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling line-wrap v0.1.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling sauron_vdom v0.24.0
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling fancy-regex v0.3.3
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling nalgebra v0.18.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror v1.0.15
[INFO] [stderr]    Compiling sauron v0.24.0
[INFO] [stderr]    Compiling comrak v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling plist v0.5.5
[INFO] [stderr]    Compiling bstr v0.2.12
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling syntect v4.1.1
[INFO] [stderr]    Compiling ncollide2d v0.19.2
[INFO] [stderr]    Compiling svgbob v0.5.0-alpha.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/svgbob-0.5.0-alpha.4/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/svgbob-0.5.0-alpha.4/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `svgbob`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "24e7c5384d86d2444291efe2eb4ea63360ed02d24f483c2666949e005104df11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24e7c5384d86d2444291efe2eb4ea63360ed02d24f483c2666949e005104df11", kill_on_drop: false }`
[INFO] [stdout] 24e7c5384d86d2444291efe2eb4ea63360ed02d24f483c2666949e005104df11