[INFO] fetching crate smoke 0.3.1...
[INFO] testing smoke-0.3.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate smoke 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate smoke 0.3.1
[INFO] finished tweaking crates.io crate smoke 0.3.1
[INFO] tweaked toml for crates.io crate smoke 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smoke 0.3.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b57e4c89021be902919e2bf41145b5e37a4d01da36b928faea7076be3e90401d
[INFO] running `Command { std: "docker" "start" "-a" "b57e4c89021be902919e2bf41145b5e37a4d01da36b928faea7076be3e90401d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b57e4c89021be902919e2bf41145b5e37a4d01da36b928faea7076be3e90401d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b57e4c89021be902919e2bf41145b5e37a4d01da36b928faea7076be3e90401d", kill_on_drop: false }`
[INFO] [stdout] b57e4c89021be902919e2bf41145b5e37a4d01da36b928faea7076be3e90401d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4d2624693bf1a77b9bea8ad7b16089541300d92395d10a12c0a95ffbd32c7192
[INFO] running `Command { std: "docker" "start" "-a" "4d2624693bf1a77b9bea8ad7b16089541300d92395d10a12c0a95ffbd32c7192", kill_on_drop: false }`
[INFO] [stderr]    Compiling smoke v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]  --> src/run.rs:7:71
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::panic::{catch_unwind, set_hook, take_hook, AssertUnwindSafe, PanicInfo};
[INFO] [stdout]   |                                                                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]    --> src/run.rs:208:29
[INFO] [stdout]     |
[INFO] [stdout] 208 |     fn dont_print_panic(_: &PanicInfo) {}
[INFO] [stdout]     |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/property/api.rs:51:24
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct BoxProperty(Box<dyn Property>);
[INFO] [stdout]    |            ----------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]   --> src/initonce.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 46 |               let cp = &self.content as *const UnsafeCell<MaybeUninit<T>> as *const MaybeUninit<T>
[INFO] [stdout]    |  ______________________-
[INFO] [stdout] 47 | |                 as *mut MaybeUninit<T>;
[INFO] [stdout]    | |______________________________________- casting happened here
[INFO] [stdout] ...
[INFO] [stdout] 50 |                   let cp_ref = &mut *cp;
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]    = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get`
[INFO] [stdout]    = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smoke` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4d2624693bf1a77b9bea8ad7b16089541300d92395d10a12c0a95ffbd32c7192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d2624693bf1a77b9bea8ad7b16089541300d92395d10a12c0a95ffbd32c7192", kill_on_drop: false }`
[INFO] [stdout] 4d2624693bf1a77b9bea8ad7b16089541300d92395d10a12c0a95ffbd32c7192
