[INFO] updating cached repository https://github.com/brianp/muxed
[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] 545617201c3140c043b7052a341a840849b43560
[INFO] checking brianp/muxed against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrianp%2Fmuxed" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brianp/muxed on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/brianp/muxed
[INFO] removed workspace from git repo https://github.com/brianp/muxed
[INFO] removed path dependency common from git repo https://github.com/brianp/muxed
[INFO] removed path dependency edit from git repo https://github.com/brianp/muxed
[INFO] removed path dependency load from git repo https://github.com/brianp/muxed
[INFO] removed path dependency new from git repo https://github.com/brianp/muxed
[INFO] removed path dependency snapshot from git repo https://github.com/brianp/muxed
[INFO] finished tweaking git repo https://github.com/brianp/muxed
[INFO] tweaked toml for git repo https://github.com/brianp/muxed written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/brianp/muxed already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (common) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (edit) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (load) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (new) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (snapshot) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (common) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (edit) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (load) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (new) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (snapshot) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] f5d3a27db2e40209580b6d1b8452418a803b13cd7ba7c5273a63d2fb7bd30467
[INFO] running `"docker" "start" "-a" "f5d3a27db2e40209580b6d1b8452418a803b13cd7ba7c5273a63d2fb7bd30467"`
[INFO] [stderr] warning: dependency (common) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (edit) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (load) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (new) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (snapshot) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]     Checking new v0.0.0
[INFO] [stderr]     Checking load v0.0.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking pretty_assertions v0.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr] error[E0658]: non-builtin inner attributes are unstable
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/load-0.0.2/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![license = "Mozilla Publice License, v. 2.0"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information
[INFO] [stderr]   = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `{`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/load-0.0.2/src/queue.rs:242:26
[INFO] [stderr]     |
[INFO] [stderr] 242 |             spawn(proc() {
[INFO] [stderr]     |                         -^ expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: missing `,`
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `rand`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/load-0.0.2/src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | extern crate rand;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `load`.
[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" "f5d3a27db2e40209580b6d1b8452418a803b13cd7ba7c5273a63d2fb7bd30467"`
[INFO] running `"docker" "rm" "-f" "f5d3a27db2e40209580b6d1b8452418a803b13cd7ba7c5273a63d2fb7bd30467"`
[INFO] [stdout] f5d3a27db2e40209580b6d1b8452418a803b13cd7ba7c5273a63d2fb7bd30467