[INFO] updating cached repository https://github.com/alanamramjit/replay
[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] 3af2cf231eda5122afa6f239c987ae2ba8bcb595
[INFO] testing alanamramjit/replay against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanamramjit%2Freplay" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alanamramjit/replay on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alanamramjit/replay
[INFO] finished tweaking git repo https://github.com/alanamramjit/replay
[INFO] tweaked toml for git repo https://github.com/alanamramjit/replay written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/alanamramjit/replay already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 054c8d39c98fffde5d84062f7345f8b102ced28fa47cdaf23253e1b72391dc0a
[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" "054c8d39c98fffde5d84062f7345f8b102ced28fa47cdaf23253e1b72391dc0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "054c8d39c98fffde5d84062f7345f8b102ced28fa47cdaf23253e1b72391dc0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "054c8d39c98fffde5d84062f7345f8b102ced28fa47cdaf23253e1b72391dc0a", kill_on_drop: false }`
[INFO] [stdout] 054c8d39c98fffde5d84062f7345f8b102ced28fa47cdaf23253e1b72391dc0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0556478cb8883eff8f89a702dec8bf938dd38cf5bd046ac6a68a8d550c86a402
[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" "0556478cb8883eff8f89a702dec8bf938dd38cf5bd046ac6a68a8d550c86a402", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.15
[INFO] [stderr]    Compiling serde v0.8.0
[INFO] [stderr]    Compiling num-traits v0.1.34
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling lazy_static v0.2.1
[INFO] [stderr]    Compiling heapsize v0.3.6
[INFO] [stderr]    Compiling quote v0.2.3
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling fnv v1.0.3
[INFO] [stderr]    Compiling x11 v2.8.0
[INFO] [stderr]    Compiling x11-dl v2.8.0
[INFO] [stderr]    Compiling xml-rs v0.3.4
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v0.8.6
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling freetype v0.1.0 (https://github.com/servo/rust-freetype#d564ff90)
[INFO] [stderr]    Compiling memmap v0.2.3
[INFO] [stderr]    Compiling osmesa-sys v0.1.0
[INFO] [stderr]    Compiling deque v0.3.1
[INFO] [stderr]    Compiling gl_generator v0.5.2
[INFO] [stderr]    Compiling wayland-scanner v0.5.11
[INFO] [stderr]    Compiling rayon v0.4.2
[INFO] [stderr]    Compiling serde_codegen_internals v0.9.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize`.
[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" "0556478cb8883eff8f89a702dec8bf938dd38cf5bd046ac6a68a8d550c86a402", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0556478cb8883eff8f89a702dec8bf938dd38cf5bd046ac6a68a8d550c86a402", kill_on_drop: false }`
[INFO] [stdout] 0556478cb8883eff8f89a702dec8bf938dd38cf5bd046ac6a68a8d550c86a402