[INFO] fetching crate rocket-config-codegen 0.0.4...
[INFO] testing rocket-config-codegen-0.0.4 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rocket-config-codegen 0.0.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rocket-config-codegen 0.0.4 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 crates.io crate rocket-config-codegen 0.0.4
[INFO] finished tweaking crates.io crate rocket-config-codegen 0.0.4
[INFO] tweaked toml for crates.io crate rocket-config-codegen 0.0.4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 rocket-config-codegen v0.0.4
[INFO] [stderr]   Downloaded rocket-config v0.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 0e851b6466d4475f074a05db0b87639b8beb8c9b71d780d2dc9e1db7bbaf0562
[INFO] running `Command { std: "docker" "start" "-a" "0e851b6466d4475f074a05db0b87639b8beb8c9b71d780d2dc9e1db7bbaf0562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e851b6466d4475f074a05db0b87639b8beb8c9b71d780d2dc9e1db7bbaf0562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e851b6466d4475f074a05db0b87639b8beb8c9b71d780d2dc9e1db7bbaf0562", kill_on_drop: false }`
[INFO] [stdout] 0e851b6466d4475f074a05db0b87639b8beb8c9b71d780d2dc9e1db7bbaf0562
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8df0b46b77c3b0796bd6887d5c400c24c67467a58284cf7a78e8e2b04be2c633
[INFO] running `Command { std: "docker" "start" "-a" "8df0b46b77c3b0796bd6887d5c400c24c67467a58284cf7a78e8e2b04be2c633", kill_on_drop: false }`
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling rocket-config-codegen v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused extern crate
[INFO] [stdout]   --> src/lib.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | extern crate proc_macro;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![warn(rust_2018_idioms)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rocket-config-codegen` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "8df0b46b77c3b0796bd6887d5c400c24c67467a58284cf7a78e8e2b04be2c633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8df0b46b77c3b0796bd6887d5c400c24c67467a58284cf7a78e8e2b04be2c633", kill_on_drop: false }`
[INFO] [stdout] 8df0b46b77c3b0796bd6887d5c400c24c67467a58284cf7a78e8e2b04be2c633