[INFO] cloning repository https://github.com/ToshiyaAsai/minischeme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ToshiyaAsai/minischeme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToshiyaAsai%2Fminischeme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToshiyaAsai%2Fminischeme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4045a0f83a8515148c5da477e0c6baee03f59a14
[INFO] checking ToshiyaAsai/minischeme against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToshiyaAsai%2Fminischeme" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ToshiyaAsai/minischeme on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ToshiyaAsai/minischeme
[INFO] finished tweaking git repo https://github.com/ToshiyaAsai/minischeme
[INFO] tweaked toml for git repo https://github.com/ToshiyaAsai/minischeme written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ToshiyaAsai/minischeme already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34b990db52fa9c7744d6654ca6c04967e6f08db6f7602189332a240b6595635e
[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" "34b990db52fa9c7744d6654ca6c04967e6f08db6f7602189332a240b6595635e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34b990db52fa9c7744d6654ca6c04967e6f08db6f7602189332a240b6595635e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34b990db52fa9c7744d6654ca6c04967e6f08db6f7602189332a240b6595635e", kill_on_drop: false }`
[INFO] [stdout] 34b990db52fa9c7744d6654ca6c04967e6f08db6f7602189332a240b6595635e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b757b80e4780a22e4e10c278732a2f485916416fd3cad1154eaf7f52cba056b
[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" "0b757b80e4780a22e4e10c278732a2f485916416fd3cad1154eaf7f52cba056b", kill_on_drop: false }`
[INFO] [stderr]     Checking minischeme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/eval.rs:25:35
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn eval(pe: &PreExpr, mut env: Env) -> Expr {
[INFO] [stdout]    |                                        ---- expected `Expr` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 25 |                 Some(t) => return t,
[INFO] [stdout]    |                                   ^ expected enum `Expr`, found `&Expr`
[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 `minischeme`
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/eval.rs:25:35
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn eval(pe: &PreExpr, mut env: Env) -> Expr {
[INFO] [stdout]    |                                        ---- expected `Expr` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 25 |                 Some(t) => return t,
[INFO] [stdout]    |                                   ^ expected enum `Expr`, found `&Expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0b757b80e4780a22e4e10c278732a2f485916416fd3cad1154eaf7f52cba056b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b757b80e4780a22e4e10c278732a2f485916416fd3cad1154eaf7f52cba056b", kill_on_drop: false }`
[INFO] [stdout] 0b757b80e4780a22e4e10c278732a2f485916416fd3cad1154eaf7f52cba056b