[INFO] fetching crate rccell 0.1.3...
[INFO] testing rccell-0.1.3 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate rccell 0.1.3 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate rccell 0.1.3 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rccell 0.1.3
[INFO] finished tweaking crates.io crate rccell 0.1.3
[INFO] tweaked toml for crates.io crate rccell 0.1.3 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3441f6b27338e06b752a063f55e9fa74584a1af124c90089efd8a6f347b607ae
[INFO] running `Command { std: "docker" "start" "-a" "3441f6b27338e06b752a063f55e9fa74584a1af124c90089efd8a6f347b607ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3441f6b27338e06b752a063f55e9fa74584a1af124c90089efd8a6f347b607ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3441f6b27338e06b752a063f55e9fa74584a1af124c90089efd8a6f347b607ae", kill_on_drop: false }`
[INFO] [stdout] 3441f6b27338e06b752a063f55e9fa74584a1af124c90089efd8a6f347b607ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e2dc1cba1f7aef107bf4a1b31643cb5322de5253c4ec39340272b5ca4fbd6b2
[INFO] running `Command { std: "docker" "start" "-a" "1e2dc1cba1f7aef107bf4a1b31643cb5322de5253c4ec39340272b5ca4fbd6b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rccell v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "1e2dc1cba1f7aef107bf4a1b31643cb5322de5253c4ec39340272b5ca4fbd6b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e2dc1cba1f7aef107bf4a1b31643cb5322de5253c4ec39340272b5ca4fbd6b2", kill_on_drop: false }`
[INFO] [stdout] 1e2dc1cba1f7aef107bf4a1b31643cb5322de5253c4ec39340272b5ca4fbd6b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03272e70a4d2af8eb264df8fde20be6822f2732765eb4772148511c069266511
[INFO] running `Command { std: "docker" "start" "-a" "03272e70a4d2af8eb264df8fde20be6822f2732765eb4772148511c069266511", kill_on_drop: false }`
[INFO] [stderr]    Compiling rccell v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "03272e70a4d2af8eb264df8fde20be6822f2732765eb4772148511c069266511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03272e70a4d2af8eb264df8fde20be6822f2732765eb4772148511c069266511", kill_on_drop: false }`
[INFO] [stdout] 03272e70a4d2af8eb264df8fde20be6822f2732765eb4772148511c069266511
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7849a4e1025e5a71881830ebcd69987cc02b9defe8ae78b0292376ef228dbaec
[INFO] running `Command { std: "docker" "start" "-a" "7849a4e1025e5a71881830ebcd69987cc02b9defe8ae78b0292376ef228dbaec", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rccell-e2cc6f0fc6fec470)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_borrow ... ok
[INFO] [stdout] test tests::test_hashmap ... ok
[INFO] [stdout] test tests::test_try_unwrap ... ok
[INFO] [stdout] test tests::test_unwrap_ok ... ok
[INFO] [stdout] test tests::test_try_borrows ... ok
[INFO] [stdout] test tests::test_borrow_mut_panic - should panic ... ok
[INFO] [stdout] test tests::test_mut_borrow_panic - should panic ... ok
[INFO] [stdout] test tests::test_mut_borrow_mut_panic - should panic ... ok
[INFO] [stdout] test tests::test_unwrap_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rccell
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/lib.rs - WeakCell<T>::new (line 226) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::try_borrow (line 158) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::borrow (line 190) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::try_borrow_mut (line 174) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::new (line 47) ... ok
[INFO] [stdout] test src/lib.rs - WeakCell<T>::upgrade (line 240) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::borrow_mut (line 204) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::strong_count (line 125) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::ptr_eq (line 140) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::weak_count (line 110) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::downgrade (line 97) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::try_unwrap (line 61) ... ok
[INFO] [stdout] test src/lib.rs - RcCell<T>::unwrap (line 80) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7849a4e1025e5a71881830ebcd69987cc02b9defe8ae78b0292376ef228dbaec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7849a4e1025e5a71881830ebcd69987cc02b9defe8ae78b0292376ef228dbaec", kill_on_drop: false }`
[INFO] [stdout] 7849a4e1025e5a71881830ebcd69987cc02b9defe8ae78b0292376ef228dbaec