[INFO] cloning repository https://github.com/lf-/object-safety-issue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lf-/object-safety-issue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flf-%2Fobject-safety-issue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flf-%2Fobject-safety-issue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 482e4d19808b7eff6a1a7cbf952d95469dd019d0
[INFO] testing lf-/object-safety-issue against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flf-%2Fobject-safety-issue" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lf-/object-safety-issue
[INFO] finished tweaking git repo https://github.com/lf-/object-safety-issue
[INFO] tweaked toml for git repo https://github.com/lf-/object-safety-issue written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lf-/object-safety-issue on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lf-/object-safety-issue 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb1c1b0b83f34725cc66837003b6587d7cbd9ca4031fb1687701765df64340bb
[INFO] running `Command { std: "docker" "start" "-a" "fb1c1b0b83f34725cc66837003b6587d7cbd9ca4031fb1687701765df64340bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb1c1b0b83f34725cc66837003b6587d7cbd9ca4031fb1687701765df64340bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb1c1b0b83f34725cc66837003b6587d7cbd9ca4031fb1687701765df64340bb", kill_on_drop: false }`
[INFO] [stdout] fb1c1b0b83f34725cc66837003b6587d7cbd9ca4031fb1687701765df64340bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86f93479dd7b3d6af7f18aa0b4618d2a7311e948f658cdd52b510ea1719ab42c
[INFO] running `Command { std: "docker" "start" "-a" "86f93479dd7b3d6af7f18aa0b4618d2a7311e948f658cdd52b510ea1719ab42c", kill_on_drop: false }`
[INFO] [stderr]    Compiling v v0.1.0 (/opt/rustwide/workdir/v)
[INFO] [stderr]    Compiling play-si1zd_4v v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0038]: the trait `T2` is not dyn compatible
[INFO] [stdout]   --> src/main.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn f(a: Box<dyn T2>) {}
[INFO] [stdout]    |             ^^^^^^ `T2` is not dyn compatible
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be dyn compatible it needs to allow building a vtable
[INFO] [stdout]       for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
[INFO] [stdout]   --> src/main.rs:1:11
[INFO] [stdout]    |
[INFO] [stdout]  1 | trait T2: v::T1 {
[INFO] [stdout]    |       --  ^^^^^ ...because it requires `Self: Sized`
[INFO] [stdout]    |       |
[INFO] [stdout]    |       this trait is not dyn compatible...
[INFO] [stdout]    = help: only type `S` implements `T2`; consider using it directly instead.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn f(a: Box<dyn T2>) {}
[INFO] [stdout]    |      ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0038`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `play-si1zd_4v` (bin "play-si1zd_4v") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "86f93479dd7b3d6af7f18aa0b4618d2a7311e948f658cdd52b510ea1719ab42c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f93479dd7b3d6af7f18aa0b4618d2a7311e948f658cdd52b510ea1719ab42c", kill_on_drop: false }`
[INFO] [stdout] 86f93479dd7b3d6af7f18aa0b4618d2a7311e948f658cdd52b510ea1719ab42c