[INFO] cloning repository https://github.com/jonhoo/please-ignore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonhoo/please-ignore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Fplease-ignore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Fplease-ignore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85a172299fdebf13af49e763434c06ff3af61adf
[INFO] checking jonhoo/please-ignore against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Fplease-ignore" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonhoo/please-ignore on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jonhoo/please-ignore
[INFO] finished tweaking git repo https://github.com/jonhoo/please-ignore
[INFO] tweaked toml for git repo https://github.com/jonhoo/please-ignore written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/jonhoo/please-ignore already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 441a41be798a8207f43e8dfc72e26ba59c51c508b4a11d7c6047d0c97aeaddd3
[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" "441a41be798a8207f43e8dfc72e26ba59c51c508b4a11d7c6047d0c97aeaddd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "441a41be798a8207f43e8dfc72e26ba59c51c508b4a11d7c6047d0c97aeaddd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441a41be798a8207f43e8dfc72e26ba59c51c508b4a11d7c6047d0c97aeaddd3", kill_on_drop: false }`
[INFO] [stdout] 441a41be798a8207f43e8dfc72e26ba59c51c508b4a11d7c6047d0c97aeaddd3
[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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c2ad94ffb1c8b711f744e00c0d1166ba6b7f06e387e20f3e2a7efa4bd913fd9
[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" "4c2ad94ffb1c8b711f744e00c0d1166ba6b7f06e387e20f3e2a7efa4bd913fd9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling either v1.0.3
[INFO] [stderr]     Checking bufstream v0.1.2
[INFO] [stderr]     Checking net2 v0.2.27
[INFO] [stderr]     Checking semver v0.2.3
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking bincode v1.0.0-alpha5
[INFO] [stderr]    Compiling serde_derive v0.9.11
[INFO] [stderr]    Compiling itertools v0.5.9
[INFO] [stderr]     Checking mio v0.6.4
[INFO] [stderr]     Checking tokio-core v0.1.4
[INFO] [stderr]    Compiling tarpc-plugins v0.1.0 (https://github.com/jonhoo/tarpc.git?branch=pub#94b14dfe)
[INFO] [stderr] error: could not compile `tarpc-plugins`
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/tarpc-30a8cd6656c1a0d4/94b14df/src/plugins/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate rustc_plugin;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4c2ad94ffb1c8b711f744e00c0d1166ba6b7f06e387e20f3e2a7efa4bd913fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c2ad94ffb1c8b711f744e00c0d1166ba6b7f06e387e20f3e2a7efa4bd913fd9", kill_on_drop: false }`
[INFO] [stdout] 4c2ad94ffb1c8b711f744e00c0d1166ba6b7f06e387e20f3e2a7efa4bd913fd9