[INFO] cloning repository https://github.com/mrmiywj/rust_incremental_compile
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrmiywj/rust_incremental_compile" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrmiywj%2Frust_incremental_compile", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrmiywj%2Frust_incremental_compile'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3d84a7d64608086290a764bb23b8856803c5ebb
[INFO] testing mrmiywj/rust_incremental_compile against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrmiywj%2Frust_incremental_compile" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrmiywj/rust_incremental_compile on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrmiywj/rust_incremental_compile
[INFO] finished tweaking git repo https://github.com/mrmiywj/rust_incremental_compile
[INFO] tweaked toml for git repo https://github.com/mrmiywj/rust_incremental_compile written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mrmiywj/rust_incremental_compile already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10c222af2a8e3c7d0f245d6477542b1a966a4e15cb5cd0f5443b07e16be9b108
[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" "10c222af2a8e3c7d0f245d6477542b1a966a4e15cb5cd0f5443b07e16be9b108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10c222af2a8e3c7d0f245d6477542b1a966a4e15cb5cd0f5443b07e16be9b108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10c222af2a8e3c7d0f245d6477542b1a966a4e15cb5cd0f5443b07e16be9b108", kill_on_drop: false }`
[INFO] [stdout] 10c222af2a8e3c7d0f245d6477542b1a966a4e15cb5cd0f5443b07e16be9b108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c4f92cdea2df8b61d073cc90d9913d389808ac7284e6acabfa9afdb5a777b05
[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" "1c4f92cdea2df8b61d073cc90d9913d389808ac7284e6acabfa9afdb5a777b05", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.11
[INFO] [stderr]    Compiling gcc v0.3.28
[INFO] [stderr]    Compiling pkg-config v0.3.8
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.6
[INFO] [stderr]    Compiling matches v0.1.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.1
[INFO] [stderr]    Compiling bitflags v0.1.1
[INFO] [stderr]    Compiling strsim v0.3.0
[INFO] [stderr]    Compiling nom v1.2.2
[INFO] [stderr]    Compiling crossbeam v0.2.9
[INFO] [stderr]    Compiling unicode-bidi v0.2.3
[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 cmake v0.1.17
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling filetime v0.1.10
[INFO] [stderr]    Compiling num_cpus v0.2.11
[INFO] [stderr]    Compiling aho-corasick v0.5.2
[INFO] [stderr]    Compiling openssl-sys v0.7.11
[INFO] [stderr]    Compiling tar v0.4.5
[INFO] [stderr]    Compiling libz-sys v1.0.3
[INFO] [stderr]    Compiling curl-sys v0.1.34
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]    Compiling semver v0.2.3
[INFO] [stderr]    Compiling libssh2-sys v0.1.37
[INFO] [stderr]    Compiling libgit2-sys v0.4.3
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling fs2 v0.2.4
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling term v0.4.4
[INFO] [stderr]    Compiling walkdir v0.1.5
[INFO] [stderr]    Compiling thread_local v0.2.5
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling regex v0.1.69
[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" "1c4f92cdea2df8b61d073cc90d9913d389808ac7284e6acabfa9afdb5a777b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4f92cdea2df8b61d073cc90d9913d389808ac7284e6acabfa9afdb5a777b05", kill_on_drop: false }`
[INFO] [stdout] 1c4f92cdea2df8b61d073cc90d9913d389808ac7284e6acabfa9afdb5a777b05