[INFO] cloning repository https://github.com/madadam/rust-async-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/madadam/rust-async-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadadam%2Frust-async-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadadam%2Frust-async-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e420cfbc4852492603239c1fa08ddd827cbe6d6
[INFO] testing madadam/rust-async-experiments against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadadam%2Frust-async-experiments" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/madadam/rust-async-experiments on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/madadam/rust-async-experiments
[INFO] finished tweaking git repo https://github.com/madadam/rust-async-experiments
[INFO] tweaked toml for git repo https://github.com/madadam/rust-async-experiments written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/madadam/rust-async-experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/alexcrichton/futures-rs`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matches v0.1.2
[INFO] [stderr]   Downloaded libc v0.2.16
[INFO] [stderr]   Downloaded toml v0.1.30
[INFO] [stderr]   Downloaded regex v0.1.77
[INFO] [stderr]   Downloaded humantime v0.1.3
[INFO] [stderr]   Downloaded httparse v1.1.2
[INFO] [stderr]   Downloaded rustc-serialize v0.3.19
[INFO] [stderr]   Downloaded ws v0.5.3
[INFO] [stderr]   Downloaded lazy_static v0.2.1
[INFO] [stderr]   Downloaded url v1.2.1
[INFO] [stderr]   Downloaded bincode v0.5.9
[INFO] [stderr]   Downloaded config_file_handler v0.4.0
[INFO] [stderr]   Downloaded log4rs v0.4.8
[INFO] [stderr]   Downloaded regex-syntax v0.3.5
[INFO] [stderr]   Downloaded ordered-float v0.1.0
[INFO] [stderr]   Downloaded unwrap v1.1.0
[INFO] [stderr]   Downloaded serde-value v0.2.1
[INFO] [stderr]   Downloaded maidsafe_utilities v0.9.0
[INFO] [stderr]   Downloaded rand v0.3.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 318d4282bab4fd94b66527d3f96d0809e17c08931e2962cbccb70c27cf5aa28b
[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" "318d4282bab4fd94b66527d3f96d0809e17c08931e2962cbccb70c27cf5aa28b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "318d4282bab4fd94b66527d3f96d0809e17c08931e2962cbccb70c27cf5aa28b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "318d4282bab4fd94b66527d3f96d0809e17c08931e2962cbccb70c27cf5aa28b", kill_on_drop: false }`
[INFO] [stdout] 318d4282bab4fd94b66527d3f96d0809e17c08931e2962cbccb70c27cf5aa28b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0106d369b842e69129ae9f92bf137063ab006ccce6e3630851ad0f451364c6
[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" "6a0106d369b842e69129ae9f92bf137063ab006ccce6e3630851ad0f451364c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.16
[INFO] [stderr]    Compiling matches v0.1.2
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.2
[INFO] [stderr]    Compiling traitobject v0.0.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling httparse v1.1.2
[INFO] [stderr]    Compiling regex-syntax v0.3.5
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling unwrap v1.1.0
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling toml v0.1.30
[INFO] [stderr]    Compiling humantime v0.1.3
[INFO] [stderr]    Compiling futures v0.1.1 (https://github.com/alexcrichton/futures-rs#59de7fe6)
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling unicode-bidi v0.2.3
[INFO] [stderr]    Compiling unsafe-any v0.4.1
[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 ordered-float v0.1.0
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling serde-value v0.2.1
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling miow v0.1.3
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling regex v0.1.77
[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" "6a0106d369b842e69129ae9f92bf137063ab006ccce6e3630851ad0f451364c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0106d369b842e69129ae9f92bf137063ab006ccce6e3630851ad0f451364c6", kill_on_drop: false }`
[INFO] [stdout] 6a0106d369b842e69129ae9f92bf137063ab006ccce6e3630851ad0f451364c6