[INFO] fetching crate rustproof 0.1.0...
[INFO] testing rustproof-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate rustproof 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rustproof 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustproof 0.1.0
[INFO] finished tweaking crates.io crate rustproof 0.1.0
[INFO] tweaked toml for crates.io crate rustproof 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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 lalrpop-intern v0.11.0
[INFO] [stderr]   Downloaded regex-syntax v0.2.6
[INFO] [stderr]   Downloaded unicode-xid v0.0.2
[INFO] [stderr]   Downloaded docopt v0.6.86
[INFO] [stderr]   Downloaded strsim v0.5.2
[INFO] [stderr]   Downloaded petgraph v0.1.18
[INFO] [stderr]   Downloaded atty v0.1.2
[INFO] [stderr]   Downloaded lalrpop-util v0.11.0
[INFO] [stderr]   Downloaded env_logger v0.3.5
[INFO] [stderr]   Downloaded bit-set v0.3.0
[INFO] [stderr]   Downloaded itertools v0.3.25
[INFO] [stderr]   Downloaded rustproof-libsmt v0.1.0
[INFO] [stderr]   Downloaded lalrpop-snap v0.11.0
[INFO] [stderr]   Downloaded lalrpop v0.11.0
[INFO] [stderr]   Downloaded bitflags v0.4.0
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78c9a96f7a979cb0f0dee89f2e65c133c898c3b1fe2616e6aa93ca565f4a3057
[INFO] running `Command { std: "docker" "start" "-a" "78c9a96f7a979cb0f0dee89f2e65c133c898c3b1fe2616e6aa93ca565f4a3057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78c9a96f7a979cb0f0dee89f2e65c133c898c3b1fe2616e6aa93ca565f4a3057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78c9a96f7a979cb0f0dee89f2e65c133c898c3b1fe2616e6aa93ca565f4a3057", kill_on_drop: false }`
[INFO] [stdout] 78c9a96f7a979cb0f0dee89f2e65c133c898c3b1fe2616e6aa93ca565f4a3057
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b1fb5982bc5fddad5fa43f599adcc0827a309ad0924775384d0a05581af451a
[INFO] running `Command { std: "docker" "start" "-a" "4b1fb5982bc5fddad5fa43f599adcc0827a309ad0924775384d0a05581af451a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling lalrpop-util v0.11.0
[INFO] [stderr]    Compiling petgraph v0.2.10
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling rustproof-libsmt v0.1.0
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling rustproof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> src/lib.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[macro_use] 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 `rustproof`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4b1fb5982bc5fddad5fa43f599adcc0827a309ad0924775384d0a05581af451a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b1fb5982bc5fddad5fa43f599adcc0827a309ad0924775384d0a05581af451a", kill_on_drop: false }`
[INFO] [stdout] 4b1fb5982bc5fddad5fa43f599adcc0827a309ad0924775384d0a05581af451a