[INFO] fetching crate self-reference 0.2.2... [INFO] testing self-reference-0.2.2 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2 [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 dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d20553b80dd8ec5390db08f71ad9e39b770db72ca528b68855d52ce7e38a1870 [INFO] running `Command { std: "docker" "start" "-a" "d20553b80dd8ec5390db08f71ad9e39b770db72ca528b68855d52ce7e38a1870", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d20553b80dd8ec5390db08f71ad9e39b770db72ca528b68855d52ce7e38a1870", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d20553b80dd8ec5390db08f71ad9e39b770db72ca528b68855d52ce7e38a1870", kill_on_drop: false }` [INFO] [stdout] d20553b80dd8ec5390db08f71ad9e39b770db72ca528b68855d52ce7e38a1870 [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a0617c78f3e1611d7c3b7ea0e93461950027898d73d0da2b78a0dd786257386d [INFO] running `Command { std: "docker" "start" "-a" "a0617c78f3e1611d7c3b7ea0e93461950027898d73d0da2b78a0dd786257386d", kill_on_drop: false }` [INFO] [stderr] Compiling stable_deref_trait v1.2.1 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Compiling pin-project-internal v1.1.11 [INFO] [stderr] Compiling pin-project v1.1.11 [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 `&::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 ::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 4.63s [INFO] running `Command { std: "docker" "inspect" "a0617c78f3e1611d7c3b7ea0e93461950027898d73d0da2b78a0dd786257386d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0617c78f3e1611d7c3b7ea0e93461950027898d73d0da2b78a0dd786257386d", kill_on_drop: false }` [INFO] [stdout] a0617c78f3e1611d7c3b7ea0e93461950027898d73d0da2b78a0dd786257386d [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 81d83b564a604f9d3996c101fed2ee7840af9f9a0a2fb0e02ff50f09be42160a [INFO] running `Command { std: "docker" "start" "-a" "81d83b564a604f9d3996c101fed2ee7840af9f9a0a2fb0e02ff50f09be42160a", 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 `&::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 ::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 `&::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 ::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 0.23s [INFO] running `Command { std: "docker" "inspect" "81d83b564a604f9d3996c101fed2ee7840af9f9a0a2fb0e02ff50f09be42160a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81d83b564a604f9d3996c101fed2ee7840af9f9a0a2fb0e02ff50f09be42160a", kill_on_drop: false }` [INFO] [stdout] 81d83b564a604f9d3996c101fed2ee7840af9f9a0a2fb0e02ff50f09be42160a [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 550f48453f914ae2a5cc65e35fd3b9f0cfe97c875fd0efaf8e429358f2e6a52c [INFO] running `Command { std: "docker" "start" "-a" "550f48453f914ae2a5cc65e35fd3b9f0cfe97c875fd0efaf8e429358f2e6a52c", kill_on_drop: false }` [INFO] [stderr] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/utils.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | mem::forget(v); [INFO] [stderr] | ^^^^^^^^^^^^-^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&::Type<'_>` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(forgetting_references)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 29 - mem::forget(v); [INFO] [stderr] 29 + let _ = v; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/utils.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | mem::forget(v); [INFO] [stderr] | ^^^^^^^^^^^^-^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&mut ::Type<'_>` [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 42 - mem::forget(v); [INFO] [stderr] 42 + let _ = v; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `self-reference` (lib) generated 2 warnings [INFO] [stderr] warning: `self-reference` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/self_reference-b051179427bb7444) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests self_reference [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "550f48453f914ae2a5cc65e35fd3b9f0cfe97c875fd0efaf8e429358f2e6a52c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "550f48453f914ae2a5cc65e35fd3b9f0cfe97c875fd0efaf8e429358f2e6a52c", kill_on_drop: false }` [INFO] [stdout] 550f48453f914ae2a5cc65e35fd3b9f0cfe97c875fd0efaf8e429358f2e6a52c