[INFO] updating cached repository https://github.com/man0lis/ascii-star
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56d93539c4778ba3cfb9efcef8abfeff6c679649
[INFO] testing man0lis/ascii-star against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fman0lis%2Fascii-star" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/man0lis/ascii-star on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/man0lis/ascii-star
[INFO] finished tweaking git repo https://github.com/man0lis/ascii-star
[INFO] tweaked toml for git repo https://github.com/man0lis/ascii-star written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/man0lis/ascii-star already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] c60ec1fd2297d12003656445683613f1b875aa9e185b70adedc85926c115b682
[INFO] running `Command { std: "docker" "start" "-a" "c60ec1fd2297d12003656445683613f1b875aa9e185b70adedc85926c115b682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c60ec1fd2297d12003656445683613f1b875aa9e185b70adedc85926c115b682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60ec1fd2297d12003656445683613f1b875aa9e185b70adedc85926c115b682", kill_on_drop: false }`
[INFO] [stdout] c60ec1fd2297d12003656445683613f1b875aa9e185b70adedc85926c115b682
[INFO] running `Command { std: "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=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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fe3b7e5881cdb6d414bc1ea24f570ba29fa35d2a20ca5840b34b2284e2a73ac
[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" "4fe3b7e5881cdb6d414bc1ea24f570ba29fa35d2a20ca5840b34b2284e2a73ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]    Compiling gstreamer v0.9.1
[INFO] [stderr]    Compiling muldiv v0.1.1
[INFO] [stderr]    Compiling chardet v0.2.4
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling gstreamer-sys v0.3.0
[INFO] [stderr]    Compiling num-complex v0.1.41
[INFO] [stderr]    Compiling parking_lot_core v0.2.8
[INFO] [stderr]    Compiling num-bigint v0.1.41
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling clap v2.29.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling num-rational v0.1.40
[INFO] [stderr]    Compiling num v0.1.41
[INFO] [stderr]    Compiling pitch_calc v0.11.1
[INFO] [stderr]    Compiling glib v0.4.0
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling ultrastar-txt v0.1.1
[INFO] [stderr]    Compiling rental-impl v0.4.15
[INFO] [stderr]    Compiling rental v0.4.16
[INFO] [stderr]    Compiling al-sys v0.5.1
[INFO] [stderr]    Compiling alto v3.0.1
[INFO] [stdout] error[E0596]: cannot borrow `**func` as mutable, as it is behind a `*const` pointer
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gstreamer-0.9.1/src/iterator.rs:419:8
[INFO] [stdout]     |
[INFO] [stdout] 415 |     let func = func as *const &mut (FnMut(T) -> bool);
[INFO] [stdout]     |         ---- help: consider changing this to be a mutable pointer: `*mut &mut dyn std::ops::FnMut(T) -> bool`
[INFO] [stdout] ...
[INFO] [stdout] 419 |     if (*func)(value) {
[INFO] [stdout]     |        ^^^^^^^ `func` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `**func` as mutable, as it is behind a `*const` pointer
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gstreamer-0.9.1/src/iterator.rs:435:5
[INFO] [stdout]     |
[INFO] [stdout] 431 |     let func = func as *const &mut (FnMut(T));
[INFO] [stdout]     |         ---- help: consider changing this to be a mutable pointer: `*mut &mut dyn std::ops::FnMut(T)`
[INFO] [stdout] ...
[INFO] [stdout] 435 |     (*func)(value);
[INFO] [stdout]     |     ^^^^^^^ `func` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `**func` as mutable, as it is behind a `*const` pointer
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gstreamer-0.9.1/src/iterator.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 447 |     let func = func as *const &mut (FnMut(U, T) -> Result<U, U>);
[INFO] [stdout]     |         ---- help: consider changing this to be a mutable pointer: `*mut &mut dyn std::ops::FnMut(U, T) -> std::result::Result<U, U>`
[INFO] [stdout] ...
[INFO] [stdout] 453 |     match (*func)(accum.take().unwrap(), value) {
[INFO] [stdout]     |           ^^^^^^^ `func` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gstreamer`.
[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 `Command { std: "docker" "inspect" "4fe3b7e5881cdb6d414bc1ea24f570ba29fa35d2a20ca5840b34b2284e2a73ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe3b7e5881cdb6d414bc1ea24f570ba29fa35d2a20ca5840b34b2284e2a73ac", kill_on_drop: false }`
[INFO] [stdout] 4fe3b7e5881cdb6d414bc1ea24f570ba29fa35d2a20ca5840b34b2284e2a73ac