[INFO] fetching crate ref_wrapper 0.3.0...
[INFO] testing ref_wrapper-0.3.0 against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2
[INFO] extracting crate ref_wrapper 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ref_wrapper 0.3.0 on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ref_wrapper 0.3.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ref_wrapper 0.3.0
[INFO] tweaked toml for crates.io crate ref_wrapper 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded drop_tracer v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dbe7125024c19f10ca30374b453e839e7bc68fb68ee918eddbeffb65855b88c
[INFO] running `Command { std: "docker" "start" "-a" "9dbe7125024c19f10ca30374b453e839e7bc68fb68ee918eddbeffb65855b88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dbe7125024c19f10ca30374b453e839e7bc68fb68ee918eddbeffb65855b88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dbe7125024c19f10ca30374b453e839e7bc68fb68ee918eddbeffb65855b88c", kill_on_drop: false }`
[INFO] [stdout] 9dbe7125024c19f10ca30374b453e839e7bc68fb68ee918eddbeffb65855b88c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 803f82fd4cbb27c9b8311b394003d307b8b878047b4fbd9375f8d1e4947741b4
[INFO] running `Command { std: "docker" "start" "-a" "803f82fd4cbb27c9b8311b394003d307b8b878047b4fbd9375f8d1e4947741b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref_wrapper v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "803f82fd4cbb27c9b8311b394003d307b8b878047b4fbd9375f8d1e4947741b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803f82fd4cbb27c9b8311b394003d307b8b878047b4fbd9375f8d1e4947741b4", kill_on_drop: false }`
[INFO] [stdout] 803f82fd4cbb27c9b8311b394003d307b8b878047b4fbd9375f8d1e4947741b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b19d4b33237a4768bccfedb778e83a1e4fc17141835a91b82999c9cd80961cb8
[INFO] running `Command { std: "docker" "start" "-a" "b19d4b33237a4768bccfedb778e83a1e4fc17141835a91b82999c9cd80961cb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling drop_tracer v0.1.1
[INFO] [stderr]    Compiling ref_wrapper v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "b19d4b33237a4768bccfedb778e83a1e4fc17141835a91b82999c9cd80961cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b19d4b33237a4768bccfedb778e83a1e4fc17141835a91b82999c9cd80961cb8", kill_on_drop: false }`
[INFO] [stdout] b19d4b33237a4768bccfedb778e83a1e4fc17141835a91b82999c9cd80961cb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b1b97378a6fc1c3b919bee64cdf23f3d188264e225f1d3257fe856ecc80749d
[INFO] running `Command { std: "docker" "start" "-a" "1b1b97378a6fc1c3b919bee64cdf23f3d188264e225f1d3257fe856ecc80749d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ref_wrapper-790621ffd02b3fb1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running tests/impl_iterator.rs (/opt/rustwide/target/debug/deps/impl_iterator-4d162a24d7f1a8d6)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/ref_wrap.rs (/opt/rustwide/target/debug/deps/ref_wrap-b4a26a20aa84d3dc)
[INFO] [stdout] test for_ref_wrap ... ok
[INFO] [stdout] test for_ref_wrap_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test deref ... ok
[INFO] [stdout] test deref_mut ... ok
[INFO] [stdout] test test_drop_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/ref_wrap_mut.rs (/opt/rustwide/target/debug/deps/ref_wrap_mut-7def13b733213567)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test deref ... ok
[INFO] [stdout] test deref_mut ... ok
[INFO] [stdout] test test_drop_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ref_wrapper
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 44) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b1b97378a6fc1c3b919bee64cdf23f3d188264e225f1d3257fe856ecc80749d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b1b97378a6fc1c3b919bee64cdf23f3d188264e225f1d3257fe856ecc80749d", kill_on_drop: false }`
[INFO] [stdout] 1b1b97378a6fc1c3b919bee64cdf23f3d188264e225f1d3257fe856ecc80749d