[INFO] cloning repository https://github.com/quek/try-nickel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quek/try-nickel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquek%2Ftry-nickel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquek%2Ftry-nickel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d5facafe1cf9ac7e15798adebd976c155c09c03
[INFO] checking quek/try-nickel against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquek%2Ftry-nickel" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quek/try-nickel on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/quek/try-nickel
[INFO] finished tweaking git repo https://github.com/quek/try-nickel
[INFO] tweaked toml for git repo https://github.com/quek/try-nickel written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/quek/try-nickel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded traitobject v0.0.3
[INFO] [stderr]   Downloaded rustc-serialize v0.3.18
[INFO] [stderr]   Downloaded unix_socket v0.5.0
[INFO] [stderr]   Downloaded httparse v1.1.1
[INFO] [stderr]   Downloaded num v0.1.31
[INFO] [stderr]   Downloaded gcc v0.3.25
[INFO] [stderr]   Downloaded url v0.5.5
[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-0.5.5/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]   Downloaded num_cpus v0.2.11
[INFO] [stderr]   Downloaded openssl-sys-extras v0.7.6
[INFO] [stderr]   Downloaded mysql v2.1.0
[INFO] [stderr]   Downloaded mustache v0.6.3
[INFO] [stderr]   Downloaded hyper v0.6.16
[INFO] [stderr]   Downloaded openssl v0.7.6
[INFO] [stderr]   Downloaded uuid v0.1.18
[INFO] [stderr]   Downloaded nickel_mustache v0.1.0
[INFO] [stderr]   Downloaded aho-corasick v0.5.1
[INFO] [stderr]   Downloaded memchr v0.1.10
[INFO] [stderr]   Downloaded regex v0.1.54
[INFO] [stderr]   Downloaded unsafe-any v0.4.1
[INFO] [stderr]   Downloaded unicase v1.3.0
[INFO] [stderr]   Downloaded libc v0.2.7
[INFO] [stderr]   Downloaded language-tags v0.0.7
[INFO] [stderr]   Downloaded openssl-sys v0.7.6
[INFO] [stderr]   Downloaded pkg-config v0.3.7
[INFO] [stderr]   Downloaded url v0.2.38
[INFO] [stderr]   Downloaded mime v0.1.3
[INFO] [stderr]   Downloaded nickel v0.7.3
[INFO] [stderr]   Downloaded regex-syntax v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7aa421424bcaf003baef03648806eccdc3747ec4848f2b8d2a8d8d8dd0d76170
[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" "7aa421424bcaf003baef03648806eccdc3747ec4848f2b8d2a8d8d8dd0d76170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aa421424bcaf003baef03648806eccdc3747ec4848f2b8d2a8d8d8dd0d76170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa421424bcaf003baef03648806eccdc3747ec4848f2b8d2a8d8d8dd0d76170", kill_on_drop: false }`
[INFO] [stdout] 7aa421424bcaf003baef03648806eccdc3747ec4848f2b8d2a8d8d8dd0d76170
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 251fe97134827da93ab1a717e735c10fbb5a0ce58a1b587644e327bd3a819e32
[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" "251fe97134827da93ab1a717e735c10fbb5a0ce58a1b587644e327bd3a819e32", 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-0.5.5/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]     Checking libc v0.2.7
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking rustc-serialize v0.3.18
[INFO] [stderr]     Checking matches v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.7
[INFO] [stderr]    Compiling gcc v0.3.25
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]     Checking traitobject v0.0.3
[INFO] [stderr]     Checking num v0.1.31
[INFO] [stderr]     Checking regex-syntax v0.2.5
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking httparse v1.1.1
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking language-tags v0.0.7
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking groupable v0.2.0
[INFO] [stderr]     Checking unicode-normalization v0.1.2
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking bufstream v0.1.1
[INFO] [stderr]     Checking byteorder v0.4.2
[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]     Checking unicode-bidi v0.2.3
[INFO] [stderr]     Checking unsafe-any v0.4.1
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking log v0.3.5
[INFO] [stderr]     Checking memchr v0.1.10
[INFO] [stderr]     Checking num_cpus v0.2.11
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking aho-corasick v0.5.1
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]    Compiling openssl-sys-extras v0.7.6
[INFO] [stderr]    Compiling openssl v0.7.6
[INFO] [stderr]    Compiling openssl-sys v0.7.6
[INFO] [stderr]     Checking time v0.1.34
[INFO] [stderr]    Compiling unicase v1.3.0
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking regex v0.1.54
[INFO] [stderr]     Checking serde v0.6.15
[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" "251fe97134827da93ab1a717e735c10fbb5a0ce58a1b587644e327bd3a819e32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "251fe97134827da93ab1a717e735c10fbb5a0ce58a1b587644e327bd3a819e32", kill_on_drop: false }`
[INFO] [stdout] 251fe97134827da93ab1a717e735c10fbb5a0ce58a1b587644e327bd3a819e32