[INFO] cloning repository https://github.com/sdrummeyjr/rambler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdrummeyjr/rambler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdrummeyjr%2Frambler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdrummeyjr%2Frambler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3503b6c53658105da8832125995aacfd05e41722
[INFO] testing sdrummeyjr/rambler against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdrummeyjr%2Frambler" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sdrummeyjr/rambler on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sdrummeyjr/rambler
[INFO] finished tweaking git repo https://github.com/sdrummeyjr/rambler
[INFO] tweaked toml for git repo https://github.com/sdrummeyjr/rambler written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/sdrummeyjr/rambler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", 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] 45abce658fe85988ba540a159d3405d0d2cca6c6f77bf4ff67ed05aab4f56c34
[INFO] running `Command { std: "docker" "start" "-a" "45abce658fe85988ba540a159d3405d0d2cca6c6f77bf4ff67ed05aab4f56c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45abce658fe85988ba540a159d3405d0d2cca6c6f77bf4ff67ed05aab4f56c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45abce658fe85988ba540a159d3405d0d2cca6c6f77bf4ff67ed05aab4f56c34", kill_on_drop: false }`
[INFO] [stdout] 45abce658fe85988ba540a159d3405d0d2cca6c6f77bf4ff67ed05aab4f56c34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7056558f01c480e15635162c9a32c62c399b05acf3d8ef70d16aa0fd0fe59958
[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" "7056558f01c480e15635162c9a32c62c399b05acf3d8ef70d16aa0fd0fe59958", kill_on_drop: false }`
[INFO] [stderr]    Compiling rambler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexer/mod.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 |                     token = self.read_identifier();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             expected enum `token::Token`, found struct `std::string::String`
[INFO] [stdout]    |                             help: try using a variant of the expected enum: `token::Token::IDENT(self.read_identifier())`
[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 E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rambler`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7056558f01c480e15635162c9a32c62c399b05acf3d8ef70d16aa0fd0fe59958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7056558f01c480e15635162c9a32c62c399b05acf3d8ef70d16aa0fd0fe59958", kill_on_drop: false }`
[INFO] [stdout] 7056558f01c480e15635162c9a32c62c399b05acf3d8ef70d16aa0fd0fe59958