[INFO] updating cached repository https://github.com/sebglazebrook/infinite-pipe
[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] 8fd5bdaa95d2131fe5c297e6e2f6c1b3a48e8149
[INFO] testing sebglazebrook/infinite-pipe against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Finfinite-pipe" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebglazebrook/infinite-pipe on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sebglazebrook/infinite-pipe
[INFO] finished tweaking git repo https://github.com/sebglazebrook/infinite-pipe
[INFO] tweaked toml for git repo https://github.com/sebglazebrook/infinite-pipe written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/sebglazebrook/infinite-pipe already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f6ff15caae500bc6464fdac1aa9f6ca2472392a9e5577c17f33de6e1f8739ad
[INFO] running `"docker" "start" "-a" "1f6ff15caae500bc6464fdac1aa9f6ca2472392a9e5577c17f33de6e1f8739ad"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling mockers_codegen v0.5.8
[INFO] [stderr]    Compiling readline v0.2.0 (https://github.com/shaleh/rust-readline.git#4223e676)
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling errno v0.1.8
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling vergen v0.1.1
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mockers_codegen-0.5.8/src/lib.rs:1:49
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(not(feature="with-syntex"), feature(quote, rustc_private))]
[INFO] [stderr]   |                                                 ^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `syntax`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mockers_codegen-0.5.8/src/lib.rs:7:36
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[cfg(not(feature="with-syntex"))] extern crate syntax;
[INFO] [stderr]   |                                    ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[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 `mockers_codegen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1f6ff15caae500bc6464fdac1aa9f6ca2472392a9e5577c17f33de6e1f8739ad"`
[INFO] running `"docker" "rm" "-f" "1f6ff15caae500bc6464fdac1aa9f6ca2472392a9e5577c17f33de6e1f8739ad"`
[INFO] [stdout] 1f6ff15caae500bc6464fdac1aa9f6ca2472392a9e5577c17f33de6e1f8739ad