[INFO] fetching crate self-reference 0.2.2...
[INFO] checking self-reference-0.2.2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate self-reference 0.2.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate self-reference 0.2.2
[INFO] finished tweaking crates.io crate self-reference 0.2.2
[INFO] tweaked toml for crates.io crate self-reference 0.2.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate self-reference 0.2.2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16353a87063e1c90c1aaf6a1f5e5d5d7bf9de57efe96a41393319ac0b30b8bde
[INFO] running `Command { std: "docker" "start" "-a" "16353a87063e1c90c1aaf6a1f5e5d5d7bf9de57efe96a41393319ac0b30b8bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16353a87063e1c90c1aaf6a1f5e5d5d7bf9de57efe96a41393319ac0b30b8bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16353a87063e1c90c1aaf6a1f5e5d5d7bf9de57efe96a41393319ac0b30b8bde", kill_on_drop: false }`
[INFO] [stdout] 16353a87063e1c90c1aaf6a1f5e5d5d7bf9de57efe96a41393319ac0b30b8bde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63a28a15597e8397b80d3f5a24b0398c554cd7f95134d76445497c3ebd53ba41
[INFO] running `Command { std: "docker" "start" "-a" "63a28a15597e8397b80d3f5a24b0398c554cd7f95134d76445497c3ebd53ba41", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking self-reference v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/utils.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     mem::forget(v);
[INFO] [stdout]    |     ^^^^^^^^^^^^-^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 argument has type `&<R as refs::RefDef>::Type<'_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 29 -     mem::forget(v);
[INFO] [stdout] 29 +     let _ = v;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/utils.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     mem::forget(v);
[INFO] [stdout]    |     ^^^^^^^^^^^^-^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 argument has type `&mut <R as refs::RefDef>::Type<'_>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 42 -     mem::forget(v);
[INFO] [stdout] 42 +     let _ = v;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/utils.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     mem::forget(v);
[INFO] [stdout]    |     ^^^^^^^^^^^^-^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 argument has type `&<R as refs::RefDef>::Type<'_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 29 -     mem::forget(v);
[INFO] [stdout] 29 +     let _ = v;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/utils.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     mem::forget(v);
[INFO] [stdout]    |     ^^^^^^^^^^^^-^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 argument has type `&mut <R as refs::RefDef>::Type<'_>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 42 -     mem::forget(v);
[INFO] [stdout] 42 +     let _ = v;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.51s
[INFO] running `Command { std: "docker" "inspect" "63a28a15597e8397b80d3f5a24b0398c554cd7f95134d76445497c3ebd53ba41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a28a15597e8397b80d3f5a24b0398c554cd7f95134d76445497c3ebd53ba41", kill_on_drop: false }`
[INFO] [stdout] 63a28a15597e8397b80d3f5a24b0398c554cd7f95134d76445497c3ebd53ba41