[INFO] cloning repository https://github.com/brakmic/nickel-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brakmic/nickel-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrakmic%2Fnickel-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrakmic%2Fnickel-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4ee22bce8f10c2690b561232f293455861975bf
[INFO] testing brakmic/nickel-demo against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrakmic%2Fnickel-demo" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brakmic/nickel-demo on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brakmic/nickel-demo
[INFO] finished tweaking git repo https://github.com/brakmic/nickel-demo
[INFO] tweaked toml for git repo https://github.com/brakmic/nickel-demo written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/brakmic/nickel-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkg-config v0.3.5
[INFO] [stderr]   Downloaded openssl-sys v0.6.4
[INFO] [stderr]   Downloaded winapi-build v0.1.0
[INFO] [stderr]   Downloaded advapi32-sys v0.1.2
[INFO] [stderr]   Downloaded mime v0.0.12
[INFO] [stderr]   Downloaded num_cpus v0.2.6
[INFO] [stderr]   Downloaded memchr v0.1.3
[INFO] [stderr]   Downloaded cookie v0.1.21
[INFO] [stderr]   Downloaded time v0.1.31
[INFO] [stderr]   Downloaded url v0.2.36
[INFO] [stderr]   Downloaded kernel32-sys v0.1.3
[INFO] [stderr]   Downloaded language-tags v0.0.7
[INFO] [stderr]   Downloaded openssl v0.6.4
[INFO] [stderr]   Downloaded aho-corasick v0.3.0
[INFO] [stderr]   Downloaded regex-syntax v0.2.1
[INFO] [stderr]   Downloaded lazy_static v0.1.12
[INFO] [stderr]   Downloaded winapi v0.2.1
[INFO] [stderr]   Downloaded solicit v0.4.0
[INFO] [stderr]   Downloaded regex v0.1.41
[INFO] [stderr]   Downloaded httparse v0.1.5
[INFO] [stderr]   Downloaded bitflags v0.3.2
[INFO] [stderr]   Downloaded pnacl-build-helper v1.4.6
[INFO] [stderr]   Downloaded tempdir v0.3.4
[INFO] [stderr]   Downloaded mustache v0.6.1
[INFO] [stderr]   Downloaded gcc v0.3.10
[INFO] [stderr]   Downloaded hyper v0.6.4
[INFO] [stderr]   Downloaded nickel v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfec631ff3a167f9cd932434c7486af10855f60c35ddd3b903f0ebe23d3a5ff2
[INFO] running `Command { std: "docker" "start" "-a" "cfec631ff3a167f9cd932434c7486af10855f60c35ddd3b903f0ebe23d3a5ff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfec631ff3a167f9cd932434c7486af10855f60c35ddd3b903f0ebe23d3a5ff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfec631ff3a167f9cd932434c7486af10855f60c35ddd3b903f0ebe23d3a5ff2", kill_on_drop: false }`
[INFO] [stdout] cfec631ff3a167f9cd932434c7486af10855f60c35ddd3b903f0ebe23d3a5ff2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77442fab3c32f60c192eb514f7e6c3ffb5af93aaf770872c21ed3ab5697d5e33
[INFO] running `Command { std: "docker" "start" "-a" "77442fab3c32f60c192eb514f7e6c3ffb5af93aaf770872c21ed3ab5697d5e33", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.1.8
[INFO] [stderr]    Compiling gcc v0.3.10
[INFO] [stderr]    Compiling pkg-config v0.3.5
[INFO] [stderr]    Compiling winapi-build v0.1.0
[INFO] [stderr]    Compiling winapi v0.2.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.15
[INFO] [stderr]    Compiling matches v0.1.2
[INFO] [stderr]    Compiling lazy_static v0.1.12
[INFO] [stderr]    Compiling traitobject v0.0.3
[INFO] [stderr]    Compiling bitflags v0.3.2
[INFO] [stderr]    Compiling unicase v0.1.0
[INFO] [stderr]    Compiling language-tags v0.0.7
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.2.1
[INFO] [stderr]    Compiling httparse v0.1.5
[INFO] [stderr]    Compiling traitobject v0.0.1
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling groupable v0.2.0
[INFO] [stderr]    Compiling unsafe-any v0.4.1
[INFO] [stderr]    Compiling log v0.3.1
[INFO] [stderr]    Compiling memchr v0.1.3
[INFO] [stderr]    Compiling num_cpus v0.2.6
[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-0.3.15/src/serialize.rs:145:45
[INFO] [stdout]     |
[INFO] [stdout] 145 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kernel32-sys v0.1.3
[INFO] [stderr]    Compiling aho-corasick v0.3.0
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.15/src/serialize.rs:201:41
[INFO] [stdout]     |
[INFO] [stdout] 201 |     fn decode<D: Decoder>(d: &mut D) -> Result<Self, D::Error>;
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Result`
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]     |
[INFO] [stdout] 201 |     fn decode<D: Decoder>(d: &mut D) -> Result<Self, D::Error> where Self: Sized;
[INFO] [stdout]     |                                                                +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0642.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "77442fab3c32f60c192eb514f7e6c3ffb5af93aaf770872c21ed3ab5697d5e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77442fab3c32f60c192eb514f7e6c3ffb5af93aaf770872c21ed3ab5697d5e33", kill_on_drop: false }`
[INFO] [stdout] 77442fab3c32f60c192eb514f7e6c3ffb5af93aaf770872c21ed3ab5697d5e33