[INFO] cloning repository https://github.com/hsmtkk/supreme-sniffle [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsmtkk/supreme-sniffle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fsupreme-sniffle", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fsupreme-sniffle'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 328a936350fc83629d43660b9f3936d465bb08aa [INFO] testing hsmtkk/supreme-sniffle against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fsupreme-sniffle" "/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/hsmtkk/supreme-sniffle on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hsmtkk/supreme-sniffle [INFO] finished tweaking git repo https://github.com/hsmtkk/supreme-sniffle [INFO] tweaked toml for git repo https://github.com/hsmtkk/supreme-sniffle written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/hsmtkk/supreme-sniffle already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fb6a402b1f9134a3021155e1012ba275522b55735217695bda83a054706df490 [INFO] running `Command { std: "docker" "start" "-a" "fb6a402b1f9134a3021155e1012ba275522b55735217695bda83a054706df490", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb6a402b1f9134a3021155e1012ba275522b55735217695bda83a054706df490", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb6a402b1f9134a3021155e1012ba275522b55735217695bda83a054706df490", kill_on_drop: false }` [INFO] [stdout] fb6a402b1f9134a3021155e1012ba275522b55735217695bda83a054706df490 [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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 303abac10baccdd604cfe9d2b8ea13cb75fdf5a2c55386b90cb3d509983d10cc [INFO] running `Command { std: "docker" "start" "-a" "303abac10baccdd604cfe9d2b8ea13cb75fdf5a2c55386b90cb3d509983d10cc", kill_on_drop: false }` [INFO] [stderr] Compiling anyhow v1.0.53 [INFO] [stderr] Compiling supreme-sniffle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rc` [INFO] [stdout] --> src/double_linked_list.rs:41:34 [INFO] [stdout] | [INFO] [stdout] 41 | self.last = Some(rc::downgrade(&new_data)); [INFO] [stdout] | ^^ use of undeclared crate or module `rc` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rc` [INFO] [stdout] --> src/double_linked_list.rs:66:34 [INFO] [stdout] | [INFO] [stdout] 66 | self.last = Some(rc::downgrade(&new_data)); [INFO] [stdout] | ^^ use of undeclared crate or module `rc` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/double_linked_list.rs:57:48 [INFO] [stdout] | [INFO] [stdout] 57 | self.last = Some(Rc::downgrade(new_back)); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | expected reference, found struct `Rc` [INFO] [stdout] | help: consider borrowing here: `&new_back` [INFO] [stdout] | [INFO] [stdout] = note: expected reference `&Rc>>` [INFO] [stdout] found struct `Rc>>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0433. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `supreme-sniffle` due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "303abac10baccdd604cfe9d2b8ea13cb75fdf5a2c55386b90cb3d509983d10cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "303abac10baccdd604cfe9d2b8ea13cb75fdf5a2c55386b90cb3d509983d10cc", kill_on_drop: false }` [INFO] [stdout] 303abac10baccdd604cfe9d2b8ea13cb75fdf5a2c55386b90cb3d509983d10cc