[INFO] cloning repository https://github.com/RusticCoder/rust-count_vowels
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RusticCoder/rust-count_vowels" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusticCoder%2Frust-count_vowels", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusticCoder%2Frust-count_vowels'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 316ceb0c2ca1e1d426299504dc913a82dab61a5e
[INFO] testing RusticCoder/rust-count_vowels against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusticCoder%2Frust-count_vowels" "/workspace/builds/worker-93/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RusticCoder/rust-count_vowels on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RusticCoder/rust-count_vowels
[INFO] finished tweaking git repo https://github.com/RusticCoder/rust-count_vowels
[INFO] tweaked toml for git repo https://github.com/RusticCoder/rust-count_vowels written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate git repo https://github.com/RusticCoder/rust-count_vowels already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e8ae3f85d895aec81f03d7b51818db7a736f172d42ac3962d1277214f7ec453
[INFO] running `Command { std: "docker" "start" "-a" "2e8ae3f85d895aec81f03d7b51818db7a736f172d42ac3962d1277214f7ec453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e8ae3f85d895aec81f03d7b51818db7a736f172d42ac3962d1277214f7ec453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e8ae3f85d895aec81f03d7b51818db7a736f172d42ac3962d1277214f7ec453", kill_on_drop: false }`
[INFO] [stdout] 2e8ae3f85d895aec81f03d7b51818db7a736f172d42ac3962d1277214f7ec453
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfeac569dab3beb752b11e1a498b0ee6b6b669a602e5d6bd89a1476aad775192
[INFO] running `Command { std: "docker" "start" "-a" "dfeac569dab3beb752b11e1a498b0ee6b6b669a602e5d6bd89a1476aad775192", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.6
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.5
[INFO] [stderr]    Compiling rustc-serialize v0.3.16
[INFO] [stderr]    Compiling pkg-config v0.3.6
[INFO] [stderr]    Compiling gcc v0.3.21
[INFO] [stderr]    Compiling unicode-normalization v0.1.2
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling nom v1.1.0
[INFO] [stderr]    Compiling lazy_static v0.1.15
[INFO] [stderr]    Compiling matches v0.1.2
[INFO] [stderr]    Compiling aster v0.10.1
[INFO] [stderr]    Compiling serde_codegen v0.6.11
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.2.2
[INFO] [stderr]    Compiling quasi v0.4.0
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling traitobject v0.0.1
[INFO] [stderr]    Compiling quick-error v0.1.4
[INFO] [stderr]    Compiling httparse v1.1.1
[INFO] [stderr]    Compiling language-tags v0.2.0
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quasi-0.4.0/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quasi` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aster-0.10.1/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[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-0.3.16/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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "dfeac569dab3beb752b11e1a498b0ee6b6b669a602e5d6bd89a1476aad775192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfeac569dab3beb752b11e1a498b0ee6b6b669a602e5d6bd89a1476aad775192", kill_on_drop: false }`
[INFO] [stdout] dfeac569dab3beb752b11e1a498b0ee6b6b669a602e5d6bd89a1476aad775192