[INFO] fetching crate self-reference 0.2.2...
[INFO] building self-reference-0.2.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate self-reference 0.2.2 into /workspace/builds/worker-0-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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate self-reference 0.2.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78330f456503ab0323a2681f04226120710efaa3b69275b14804c86c383e0c1e
[INFO] running `Command { std: "docker" "start" "-a" "78330f456503ab0323a2681f04226120710efaa3b69275b14804c86c383e0c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78330f456503ab0323a2681f04226120710efaa3b69275b14804c86c383e0c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78330f456503ab0323a2681f04226120710efaa3b69275b14804c86c383e0c1e", kill_on_drop: false }`
[INFO] [stdout] 78330f456503ab0323a2681f04226120710efaa3b69275b14804c86c383e0c1e
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e733b6dfb3c9f8a0a1f21baddb5dd1a2467759c0839aaeb1721e884a0d21fa24
[INFO] running `Command { std: "docker" "start" "-a" "e733b6dfb3c9f8a0a1f21baddb5dd1a2467759c0839aaeb1721e884a0d21fa24", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.93s
[INFO] running `Command { std: "docker" "inspect" "e733b6dfb3c9f8a0a1f21baddb5dd1a2467759c0839aaeb1721e884a0d21fa24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e733b6dfb3c9f8a0a1f21baddb5dd1a2467759c0839aaeb1721e884a0d21fa24", kill_on_drop: false }`
[INFO] [stdout] e733b6dfb3c9f8a0a1f21baddb5dd1a2467759c0839aaeb1721e884a0d21fa24
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1db810e96484410a62b33575cab602ed9a36015932fb21fec3795703e9c7570
[INFO] running `Command { std: "docker" "start" "-a" "a1db810e96484410a62b33575cab602ed9a36015932fb21fec3795703e9c7570", kill_on_drop: false }`
[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]    Compiling 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "a1db810e96484410a62b33575cab602ed9a36015932fb21fec3795703e9c7570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1db810e96484410a62b33575cab602ed9a36015932fb21fec3795703e9c7570", kill_on_drop: false }`
[INFO] [stdout] a1db810e96484410a62b33575cab602ed9a36015932fb21fec3795703e9c7570