[INFO] crate humpty_dumpty 0.0.1 is already in cache
[INFO] testing humpty_dumpty-0.0.1 against 1.45.2 for beta-1.46-1
[INFO] extracting crate humpty_dumpty 0.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate humpty_dumpty 0.0.1 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 humpty_dumpty 0.0.1
[INFO] finished tweaking crates.io crate humpty_dumpty 0.0.1
[INFO] tweaked toml for crates.io crate humpty_dumpty 0.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c1857d775841b799f7dfc0a1864fe1d3b78e0a4189d14ac5323dc8032fd81d59
[INFO] running `Command { std: "docker" "start" "-a" "c1857d775841b799f7dfc0a1864fe1d3b78e0a4189d14ac5323dc8032fd81d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1857d775841b799f7dfc0a1864fe1d3b78e0a4189d14ac5323dc8032fd81d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1857d775841b799f7dfc0a1864fe1d3b78e0a4189d14ac5323dc8032fd81d59", kill_on_drop: false }`
[INFO] [stdout] c1857d775841b799f7dfc0a1864fe1d3b78e0a4189d14ac5323dc8032fd81d59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 21589b953e6d61bfbde5fd20ae807c88ce9170abc75aa8eba1b7b57c0c0858b1
[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" "21589b953e6d61bfbde5fd20ae807c88ce9170abc75aa8eba1b7b57c0c0858b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling humpty_dumpty v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin_registrar, quote, plugin, box_syntax, rustc_private,
[INFO] [stdout]   |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> src/lib.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![plugin(syntax)]
[INFO] [stdout]   |           ^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `humpty_dumpty`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "21589b953e6d61bfbde5fd20ae807c88ce9170abc75aa8eba1b7b57c0c0858b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21589b953e6d61bfbde5fd20ae807c88ce9170abc75aa8eba1b7b57c0c0858b1", kill_on_drop: false }`
[INFO] [stdout] 21589b953e6d61bfbde5fd20ae807c88ce9170abc75aa8eba1b7b57c0c0858b1