[INFO] cloning repository https://github.com/BurntSushi/rust-docs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BurntSushi/rust-docs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurntSushi%2Frust-docs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurntSushi%2Frust-docs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28852fea71fc24a0d53cc2573b255bf677597ac8
[INFO] testing BurntSushi/rust-docs against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurntSushi%2Frust-docs" "/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/BurntSushi/rust-docs on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BurntSushi/rust-docs
[INFO] finished tweaking git repo https://github.com/BurntSushi/rust-docs
[INFO] tweaked toml for git repo https://github.com/BurntSushi/rust-docs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/BurntSushi/rust-docs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.3.4
[INFO] [stderr]   Downloaded streaming-stats v0.1.28
[INFO] [stderr]   Downloaded docopt v0.6.82
[INFO] [stderr]   Downloaded regex-syntax v0.3.4
[INFO] [stderr]   Downloaded num-complex v0.1.33
[INFO] [stderr]   Downloaded suffix v0.4.1
[INFO] [stderr]   Downloaded cbor v0.4.0
[INFO] [stderr]   Downloaded quickcheck v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.14
[INFO] [stderr]   Downloaded regex v0.1.73
[INFO] [stderr]   Downloaded fst v0.1.32
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0d2b88ebd8125311fcd21e8922ff5b5af7ddd066bdc12cd9c4e5ba312b74073
[INFO] running `Command { std: "docker" "start" "-a" "d0d2b88ebd8125311fcd21e8922ff5b5af7ddd066bdc12cd9c4e5ba312b74073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0d2b88ebd8125311fcd21e8922ff5b5af7ddd066bdc12cd9c4e5ba312b74073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d2b88ebd8125311fcd21e8922ff5b5af7ddd066bdc12cd9c4e5ba312b74073", kill_on_drop: false }`
[INFO] [stdout] d0d2b88ebd8125311fcd21e8922ff5b5af7ddd066bdc12cd9c4e5ba312b74073
[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=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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1066a3d3b427bf156d1c6e1102520f842bac2c5e777d1ab74e02c3f2902f9bba
[INFO] running `Command { std: "docker" "start" "-a" "1066a3d3b427bf156d1c6e1102520f842bac2c5e777d1ab74e02c3f2902f9bba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.14
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling num-traits v0.1.34
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.4
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling lazy_static v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.2.6
[INFO] [stderr]    Compiling lazy_static v0.1.16
[INFO] [stderr]    Compiling unicode-width v0.1.3
[INFO] [stderr]    Compiling strsim v0.3.0
[INFO] [stderr]    Compiling suffix v0.4.1
[INFO] [stderr]    Compiling walkdir v0.1.5
[INFO] [stderr]    Compiling tabwriter v0.1.25
[INFO] [stderr]    Compiling bit-set v0.2.0
[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 rand v0.3.14
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling aho-corasick v0.5.2
[INFO] [stderr]    Compiling thread_local v0.2.6
[INFO] [stderr]    Compiling memmap v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling chan v0.1.18
[INFO] [stderr]    Compiling fst v0.1.32
[INFO] [stderr]    Compiling regex v0.1.73
[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" "1066a3d3b427bf156d1c6e1102520f842bac2c5e777d1ab74e02c3f2902f9bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1066a3d3b427bf156d1c6e1102520f842bac2c5e777d1ab74e02c3f2902f9bba", kill_on_drop: false }`
[INFO] [stdout] 1066a3d3b427bf156d1c6e1102520f842bac2c5e777d1ab74e02c3f2902f9bba