[INFO] fetching crate smartpoll 2.0.0...
[INFO] building smartpoll-2.0.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate smartpoll 2.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate smartpoll 2.0.0
[INFO] finished tweaking crates.io crate smartpoll 2.0.0
[INFO] tweaked toml for crates.io crate smartpoll 2.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smartpoll 2.0.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e773a341ea13e047df9d80295ed628a3b79dabdc0fc3f6b4ae1b9b26f049cef
[INFO] running `Command { std: "docker" "start" "-a" "7e773a341ea13e047df9d80295ed628a3b79dabdc0fc3f6b4ae1b9b26f049cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e773a341ea13e047df9d80295ed628a3b79dabdc0fc3f6b4ae1b9b26f049cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e773a341ea13e047df9d80295ed628a3b79dabdc0fc3f6b4ae1b9b26f049cef", kill_on_drop: false }`
[INFO] [stdout] 7e773a341ea13e047df9d80295ed628a3b79dabdc0fc3f6b4ae1b9b26f049cef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 698497e9ab552a34f82a41c184634600e31a076eb296ed1635ddb079a126bd32
[INFO] running `Command { std: "docker" "start" "-a" "698497e9ab552a34f82a41c184634600e31a076eb296ed1635ddb079a126bd32", kill_on_drop: false }`
[INFO] [stderr]    Compiling smartpoll v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |         Box::into_raw(this);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 470 |         let _ = Box::into_raw(this);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:516:9
[INFO] [stdout]     |
[INFO] [stdout] 516 |         Box::into_raw(this);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 516 |         let _ = Box::into_raw(this);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "698497e9ab552a34f82a41c184634600e31a076eb296ed1635ddb079a126bd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "698497e9ab552a34f82a41c184634600e31a076eb296ed1635ddb079a126bd32", kill_on_drop: false }`
[INFO] [stdout] 698497e9ab552a34f82a41c184634600e31a076eb296ed1635ddb079a126bd32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d550253c07e3025601266c5b7a13a19ea66941ff132ce5b1efac6e5bcaa5aae
[INFO] running `Command { std: "docker" "start" "-a" "3d550253c07e3025601266c5b7a13a19ea66941ff132ce5b1efac6e5bcaa5aae", kill_on_drop: false }`
[INFO] [stdout] warning: unused return value of `Box::<T>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |         Box::into_raw(this);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 470 |         let _ = Box::into_raw(this);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:516:9
[INFO] [stdout]     |
[INFO] [stdout] 516 |         Box::into_raw(this);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 516 |         let _ = Box::into_raw(this);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling smartpoll v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |         Box::into_raw(this);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 470 |         let _ = Box::into_raw(this);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:516:9
[INFO] [stdout]     |
[INFO] [stdout] 516 |         Box::into_raw(this);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 516 |         let _ = Box::into_raw(this);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "3d550253c07e3025601266c5b7a13a19ea66941ff132ce5b1efac6e5bcaa5aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d550253c07e3025601266c5b7a13a19ea66941ff132ce5b1efac6e5bcaa5aae", kill_on_drop: false }`
[INFO] [stdout] 3d550253c07e3025601266c5b7a13a19ea66941ff132ce5b1efac6e5bcaa5aae