[INFO] cloning repository https://github.com/tocklime/rustc_iterwrapper_hang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tocklime/rustc_iterwrapper_hang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftocklime%2Frustc_iterwrapper_hang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftocklime%2Frustc_iterwrapper_hang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a28fc3642b466c36c2bb43dfbfc20f66b802e76a
[INFO] testing tocklime/rustc_iterwrapper_hang against try#8da20828b6ea601dfd8e2448cb50ace88876bd78 for pr-150933
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftocklime%2Frustc_iterwrapper_hang" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tocklime/rustc_iterwrapper_hang
[INFO] finished tweaking git repo https://github.com/tocklime/rustc_iterwrapper_hang
[INFO] tweaked toml for git repo https://github.com/tocklime/rustc_iterwrapper_hang written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tocklime/rustc_iterwrapper_hang on toolchain 8da20828b6ea601dfd8e2448cb50ace88876bd78
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tocklime/rustc_iterwrapper_hang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38d1f47b7b38605d449c406b492c20b285f59777624abb0fee236f7dc9c04e5b
[INFO] running `Command { std: "docker" "start" "-a" "38d1f47b7b38605d449c406b492c20b285f59777624abb0fee236f7dc9c04e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38d1f47b7b38605d449c406b492c20b285f59777624abb0fee236f7dc9c04e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38d1f47b7b38605d449c406b492c20b285f59777624abb0fee236f7dc9c04e5b", kill_on_drop: false }`
[INFO] [stdout] 38d1f47b7b38605d449c406b492c20b285f59777624abb0fee236f7dc9c04e5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c23a7cbe2fee95437c33a1b20de4c0650f743fd230c4b2f422cfc349fcacea70
[INFO] running `Command { std: "docker" "start" "-a" "c23a7cbe2fee95437c33a1b20de4c0650f743fd230c4b2f422cfc349fcacea70", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc_hang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: reached the recursion limit while instantiating `func::<IterWrap<'_, usize, IterWrap<'_, usize, ...>>>`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         func(&mut wrapped);
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `func` defined here
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn func(n: &mut impl Iterator<Item = usize>) {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/rustc_hang-b2fef44e09d7786e.long-type-8133905023866038848.txt'
[INFO] [stdout]   = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc_hang` (bin "rustc_hang") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c23a7cbe2fee95437c33a1b20de4c0650f743fd230c4b2f422cfc349fcacea70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c23a7cbe2fee95437c33a1b20de4c0650f743fd230c4b2f422cfc349fcacea70", kill_on_drop: false }`
[INFO] [stdout] c23a7cbe2fee95437c33a1b20de4c0650f743fd230c4b2f422cfc349fcacea70