[INFO] cloning repository https://github.com/t-eckert/rpn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/t-eckert/rpn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-eckert%2Frpn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-eckert%2Frpn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3a25f61ae1ea7368929240d5ad199ba9e06ddb8
[INFO] building t-eckert/rpn against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-eckert%2Frpn" "/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/t-eckert/rpn on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/t-eckert/rpn
[INFO] finished tweaking git repo https://github.com/t-eckert/rpn
[INFO] tweaked toml for git repo https://github.com/t-eckert/rpn written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/t-eckert/rpn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e48cdbe880ec4203d8cfadac59ced60a03f515779494f37b947e22fa0fcdfb91
[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" "e48cdbe880ec4203d8cfadac59ced60a03f515779494f37b947e22fa0fcdfb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e48cdbe880ec4203d8cfadac59ced60a03f515779494f37b947e22fa0fcdfb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e48cdbe880ec4203d8cfadac59ced60a03f515779494f37b947e22fa0fcdfb91", kill_on_drop: false }`
[INFO] [stdout] e48cdbe880ec4203d8cfadac59ced60a03f515779494f37b947e22fa0fcdfb91
[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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8ac7c9e9bb91b5941f0945801714780da3b6eba8db3125abbe0546e2763f51d
[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" "b8ac7c9e9bb91b5941f0945801714780da3b6eba8db3125abbe0546e2763f51d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rpn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/evaluator.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 23 | /             match instruction {
[INFO] [stdout] 24 | |                 "+" => &self.add(),
[INFO] [stdout] 25 | |                 "-" => &self.subtract(),
[INFO] [stdout] 26 | |                 "*" => &self.multiply(),
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | |                     &self.push(value)
[INFO] [stdout]    | |                     ^^^^^^^^^^^^^^^^^ expected `()`, found `&()`
[INFO] [stdout] 31 | |                 }
[INFO] [stdout] 32 | |             }
[INFO] [stdout]    | |_____________- expected this to be `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]    |
[INFO] [stdout] 32 |             };
[INFO] [stdout]    |              ^
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]    |
[INFO] [stdout] 30 |                     self.push(value)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rpn`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[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] running `Command { std: "docker" "inspect" "b8ac7c9e9bb91b5941f0945801714780da3b6eba8db3125abbe0546e2763f51d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ac7c9e9bb91b5941f0945801714780da3b6eba8db3125abbe0546e2763f51d", kill_on_drop: false }`
[INFO] [stdout] b8ac7c9e9bb91b5941f0945801714780da3b6eba8db3125abbe0546e2763f51d
