[INFO] updating cached repository https://github.com/aulisius/alphabet_icon
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b4b72336c7ea7be84f316100bd6c7c71b99f63bf
[INFO] checking aulisius/alphabet_icon against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faulisius%2Falphabet_icon" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aulisius/alphabet_icon on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/aulisius/alphabet_icon
[INFO] finished tweaking git repo https://github.com/aulisius/alphabet_icon
[INFO] tweaked toml for git repo https://github.com/aulisius/alphabet_icon written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/aulisius/alphabet_icon already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a93b6d685085eefe73d71b5ead9228493bb979737ece26d861b8bfffe62679d1
[INFO] running `"docker" "start" "-a" "a93b6d685085eefe73d71b5ead9228493bb979737ece26d861b8bfffe62679d1"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]     Checking cached v0.4.1
[INFO] [stderr]     Checking svg v0.5.6
[INFO] [stderr]     Checking simplesvg v0.4.0
[INFO] [stderr]     Checking cache_2q v0.8.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling pear_codegen v0.0.20
[INFO] [stderr]    Compiling rocket v0.3.16
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling rocket_codegen v0.3.16
[INFO] [stderr]    Compiling rocket_cors v0.2.0
[INFO] [stderr]    Compiling serde v1.0.74
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking unicase_serde v0.1.0
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.20/src/lib.rs:1:45
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(plugin_registrar, rustc_private, quote)]
[INFO] [stderr]   |                                             ^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr] error[E0463]: can't find crate for `rustc`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.20/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | extern crate rustc;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `pear_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a93b6d685085eefe73d71b5ead9228493bb979737ece26d861b8bfffe62679d1"`
[INFO] running `"docker" "rm" "-f" "a93b6d685085eefe73d71b5ead9228493bb979737ece26d861b8bfffe62679d1"`
[INFO] [stdout] a93b6d685085eefe73d71b5ead9228493bb979737ece26d861b8bfffe62679d1