[INFO] updating cached repository https://github.com/shravan-motipally/rusty-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02cdf66bda539b24c7aac6014c23d375c6382c89
[INFO] testing shravan-motipally/rusty-rust against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshravan-motipally%2Frusty-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shravan-motipally/rusty-rust on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shravan-motipally/rusty-rust
[INFO] finished tweaking git repo https://github.com/shravan-motipally/rusty-rust
[INFO] tweaked toml for git repo https://github.com/shravan-motipally/rusty-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/shravan-motipally/rusty-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8808287e0a980e028b9858601948254a68bc8f42c88993e2de563c48247382a1
[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" "8808287e0a980e028b9858601948254a68bc8f42c88993e2de563c48247382a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8808287e0a980e028b9858601948254a68bc8f42c88993e2de563c48247382a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8808287e0a980e028b9858601948254a68bc8f42c88993e2de563c48247382a1", kill_on_drop: false }`
[INFO] [stdout] 8808287e0a980e028b9858601948254a68bc8f42c88993e2de563c48247382a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32a456c5cccbfc053aa53a2a0a19d7b578250bc635b3d9b030cf1206ea70ecae
[INFO] running `Command { std: "docker" "start" "-a" "32a456c5cccbfc053aa53a2a0a19d7b578250bc635b3d9b030cf1206ea70ecae", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |         .expect(failure_msg);
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 expected `&str`, found struct `std::string::String`
[INFO] [stdout]    |                 help: consider borrowing here: `&failure_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |         .expect(failure_msg);
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 expected `&str`, found struct `std::string::String`
[INFO] [stdout]    |                 help: consider borrowing here: `&failure_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "32a456c5cccbfc053aa53a2a0a19d7b578250bc635b3d9b030cf1206ea70ecae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a456c5cccbfc053aa53a2a0a19d7b578250bc635b3d9b030cf1206ea70ecae", kill_on_drop: false }`
[INFO] [stdout] 32a456c5cccbfc053aa53a2a0a19d7b578250bc635b3d9b030cf1206ea70ecae