[INFO] cloning repository https://github.com/zackmdavis/dubious_URL_shortener
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zackmdavis/dubious_URL_shortener" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzackmdavis%2Fdubious_URL_shortener", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzackmdavis%2Fdubious_URL_shortener'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62483f39696488cf80f2a63b67836fc41b0ba158
[INFO] testing zackmdavis/dubious_URL_shortener against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzackmdavis%2Fdubious_URL_shortener" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zackmdavis/dubious_URL_shortener on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zackmdavis/dubious_URL_shortener
[INFO] finished tweaking git repo https://github.com/zackmdavis/dubious_URL_shortener
[INFO] tweaked toml for git repo https://github.com/zackmdavis/dubious_URL_shortener written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/zackmdavis/dubious_URL_shortener already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: TOML file found which contains invalid syntax and will soon not parse
[INFO] [stderr] at `/workspace/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-0.5.7/Cargo.toml`.
[INFO] [stderr] 
[INFO] [stderr] The TOML spec requires newlines after table definitions (e.g., `[a] b = 1` is
[INFO] [stderr] invalid), but this file has a table header which does not have a newline after
[INFO] [stderr] it. A newline needs to be added and this warning will soon become a hard error
[INFO] [stderr] in the future.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 27ce3b479c9ccf8385a097392f3196d15aac9d1005983877ddd73b3e1cfb0151
[INFO] running `Command { std: "docker" "start" "-a" "27ce3b479c9ccf8385a097392f3196d15aac9d1005983877ddd73b3e1cfb0151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27ce3b479c9ccf8385a097392f3196d15aac9d1005983877ddd73b3e1cfb0151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ce3b479c9ccf8385a097392f3196d15aac9d1005983877ddd73b3e1cfb0151", kill_on_drop: false }`
[INFO] [stdout] 27ce3b479c9ccf8385a097392f3196d15aac9d1005983877ddd73b3e1cfb0151
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", 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] 2feeea3ec651d5cca614eb7caf2d5978056bb82c13acac799516cc9f9a0841cd
[INFO] running `Command { std: "docker" "start" "-a" "2feeea3ec651d5cca614eb7caf2d5978056bb82c13acac799516cc9f9a0841cd", kill_on_drop: false }`
[INFO] [stderr] warning: TOML file found which contains invalid syntax and will soon not parse
[INFO] [stderr] at `/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-0.5.7/Cargo.toml`.
[INFO] [stderr] 
[INFO] [stderr] The TOML spec requires newlines after table definitions (e.g., `[a] b = 1` is
[INFO] [stderr] invalid), but this file has a table header which does not have a newline after
[INFO] [stderr] it. A newline needs to be added and this warning will soon become a hard error
[INFO] [stderr] in the future.
[INFO] [stderr]    Compiling libc v0.2.8
[INFO] [stderr]    Compiling rustc-serialize v0.3.18
[INFO] [stderr]    Compiling winapi v0.2.5
[INFO] [stderr]    Compiling gcc v0.3.25
[INFO] [stderr]    Compiling phf_shared v0.7.13
[INFO] [stderr]    Compiling lazy_static v0.1.15
[INFO] [stderr]    Compiling pq-sys v0.2.1
[INFO] [stderr]    Compiling httparse v1.1.1
[INFO] [stderr]    Compiling serde v0.7.0
[INFO] [stderr]    Compiling regex-syntax v0.2.5
[INFO] [stderr]    Compiling itertools v0.4.11
[INFO] [stderr]    Compiling quick-error v0.1.4
[INFO] [stderr]    Compiling diesel_codegen v0.5.2
[INFO] [stderr]    Compiling openssl-sys v0.7.6
[INFO] [stderr]    Compiling libsqlite3-sys v0.4.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]    Compiling unicase v1.3.0
[INFO] [stderr]    Compiling encoding v0.2.32
[INFO] [stderr]    Compiling phf v0.7.13
[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-0.3.18/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 log v0.3.5
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling memchr v0.1.10
[INFO] [stderr]    Compiling num_cpus v0.2.11
[INFO] [stderr]    Compiling term v0.2.14
[INFO] [stderr]    Compiling time v0.1.34
[INFO] [stderr]    Compiling aho-corasick v0.5.1
[INFO] [stderr]    Compiling hpack v0.2.0
[INFO] [stderr]    Compiling diesel v0.5.0
[INFO] [stderr]    Compiling regex v0.1.55
[INFO] [stderr]    Compiling phf_generator v0.7.13
[INFO] [stderr]    Compiling tempdir v0.3.4
[INFO] [stderr]    Compiling solicit v0.4.4
[INFO] [stderr]    Compiling openssl-sys-extras v0.7.6
[INFO] [stderr]    Compiling openssl v0.7.6
[INFO] [stderr]    Compiling phf_codegen v0.7.13
[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` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2feeea3ec651d5cca614eb7caf2d5978056bb82c13acac799516cc9f9a0841cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2feeea3ec651d5cca614eb7caf2d5978056bb82c13acac799516cc9f9a0841cd", kill_on_drop: false }`
[INFO] [stdout] 2feeea3ec651d5cca614eb7caf2d5978056bb82c13acac799516cc9f9a0841cd