[INFO] cloning repository https://github.com/pop-os/debrepbuild
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pop-os/debrepbuild" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fdebrepbuild", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fdebrepbuild'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73a4f06ac19a044a67850a1fac0c6a06e6f6eeb1
[INFO] testing pop-os/debrepbuild against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fdebrepbuild" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pop-os/debrepbuild on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pop-os/debrepbuild
[INFO] finished tweaking git repo https://github.com/pop-os/debrepbuild
[INFO] tweaked toml for git repo https://github.com/pop-os/debrepbuild written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/pop-os/debrepbuild already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 22c145869d1ea853592477674cc652a84ee746379e9dd1dc473515ad5d8f660a
[INFO] running `Command { std: "docker" "start" "-a" "22c145869d1ea853592477674cc652a84ee746379e9dd1dc473515ad5d8f660a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22c145869d1ea853592477674cc652a84ee746379e9dd1dc473515ad5d8f660a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22c145869d1ea853592477674cc652a84ee746379e9dd1dc473515ad5d8f660a", kill_on_drop: false }`
[INFO] [stdout] 22c145869d1ea853592477674cc652a84ee746379e9dd1dc473515ad5d8f660a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62e05dbb742d3f3dcffb8fc87b985fa0d4c0059f6970b38e99b7b39b8191b2e1
[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" "62e05dbb742d3f3dcffb8fc87b985fa0d4c0059f6970b38e99b7b39b8191b2e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling utf-8 v0.7.4
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling encoding_rs v0.8.9
[INFO] [stderr]    Compiling ego-tree v0.5.0
[INFO] [stderr]    Compiling atomic-option v0.1.2
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling progress-streams v1.0.0
[INFO] [stderr]    Compiling numtoa v0.2.3
[INFO] [stderr]    Compiling same-file v1.0.3
[INFO] [stderr]    Compiling cascade v0.1.2
[INFO] [stderr]    Compiling deb-version v0.1.0
[INFO] [stderr]    Compiling hex-view v0.1.2
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling subprocess v0.1.16
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling filetime v0.2.1
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling ar v0.6.0
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling vergen v0.1.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling walkdir v2.2.5
[INFO] [stderr]    Compiling http v0.1.13
[INFO] [stderr]    Compiling tar v0.4.17
[INFO] [stderr]    Compiling tokio-io v0.1.9
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling fern v0.5.6
[INFO] [stderr]    Compiling tempfile v3.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling lzma-sys v0.1.10
[INFO] [stderr]    Compiling toml v0.4.8
[INFO] [stderr]    Compiling html5ever v0.18.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling debrepobuilder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v0.15.8
[INFO] [stderr]    Compiling tendril v0.4.0
[INFO] [stderr]    Compiling tendril v0.3.1
[INFO] [stderr]    Compiling libflate v0.1.18
[INFO] [stderr]    Compiling gzip-header v0.2.0
[INFO] [stderr]    Compiling serde_urlencoded v0.5.3
[INFO] [stderr]    Compiling utime v0.2.1
[INFO] [stderr]    Compiling bus v2.0.0
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling sha-1 v0.7.0
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling bus_writer v0.1.2
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling mime v0.3.9
[INFO] [stderr]    Compiling selectors v0.19.0
[INFO] [stderr]    Compiling cssparser-macros v0.3.4
[INFO] [stderr]    Compiling tokio-threadpool v0.1.7
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.6
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling h2 v0.1.12
[INFO] [stderr]    Compiling xz2 v0.1.5
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]    Compiling markup5ever v0.3.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.2
[INFO] [stderr]    Compiling debarchive v0.1.0
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling tokio v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling hyper v0.12.11
[INFO] [stderr]    Compiling cssparser v0.23.10
[INFO] [stderr]    Compiling html5ever v0.22.3
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling reqwest v0.9.2
[INFO] [stderr]    Compiling select v0.4.2
[INFO] [stderr]    Compiling parallel-getter v0.2.0
[INFO] [stderr]    Compiling markup5ever v0.7.2
[INFO] [stdout] error[E0506]: cannot assign to `self.input.cached_token` because it is borrowed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cssparser-0.23.10/src/parser.rs:572:17
[INFO] [stdout]     |
[INFO] [stdout] 547 |     pub fn next_including_whitespace_and_comments(&mut self) -> Result<&Token<'i>, BasicParseError<'i>> {
[INFO] [stdout]     |                                                   - let's call the lifetime of this reference `'1`
[INFO] [stdout] ...
[INFO] [stdout] 560 |             Some(ref cached_token)
[INFO] [stdout]     |                  ---------------- borrow of `self.input.cached_token` occurs here
[INFO] [stdout] ...
[INFO] [stdout] 572 |                 self.input.cached_token = Some(CachedToken {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ assignment to borrowed `self.input.cached_token` occurs here
[INFO] [stdout] ...
[INFO] [stdout] 584 |         Ok(token)
[INFO] [stdout]     |         --------- returning this value requires that `self.input.cached_token.0` is borrowed for `'1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cssparser`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0506`.
[INFO] [stdout] 
[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" "62e05dbb742d3f3dcffb8fc87b985fa0d4c0059f6970b38e99b7b39b8191b2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62e05dbb742d3f3dcffb8fc87b985fa0d4c0059f6970b38e99b7b39b8191b2e1", kill_on_drop: false }`
[INFO] [stdout] 62e05dbb742d3f3dcffb8fc87b985fa0d4c0059f6970b38e99b7b39b8191b2e1