[INFO] fetching crate cell 0.1.8...
[INFO] testing cell-0.1.8 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cell 0.1.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cell 0.1.8 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cell 0.1.8
[INFO] finished tweaking crates.io crate cell 0.1.8
[INFO] tweaked toml for crates.io crate cell 0.1.8 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03eda2f0bf22b803a8a23f1bec19381b73b5f0f7498fa0f05a80397d7740014b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "03eda2f0bf22b803a8a23f1bec19381b73b5f0f7498fa0f05a80397d7740014b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03eda2f0bf22b803a8a23f1bec19381b73b5f0f7498fa0f05a80397d7740014b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03eda2f0bf22b803a8a23f1bec19381b73b5f0f7498fa0f05a80397d7740014b", kill_on_drop: false }`
[INFO] [stdout] 03eda2f0bf22b803a8a23f1bec19381b73b5f0f7498fa0f05a80397d7740014b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0b29b9df80bf460504c02da2eaf7c5a0a3b351d7de55d171a01705cb01aa4427
[INFO] running `Command { std: "docker" "start" "-a" "0b29b9df80bf460504c02da2eaf7c5a0a3b351d7de55d171a01705cb01aa4427", kill_on_drop: false }`
[INFO] [stderr]    Compiling cell v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "0b29b9df80bf460504c02da2eaf7c5a0a3b351d7de55d171a01705cb01aa4427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b29b9df80bf460504c02da2eaf7c5a0a3b351d7de55d171a01705cb01aa4427", kill_on_drop: false }`
[INFO] [stdout] 0b29b9df80bf460504c02da2eaf7c5a0a3b351d7de55d171a01705cb01aa4427
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f4829272819d97bf9f68ed9114467fab20ffc9dec0b93a20cea5dc62ff99863
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8f4829272819d97bf9f68ed9114467fab20ffc9dec0b93a20cea5dc62ff99863", kill_on_drop: false }`
[INFO] [stderr]    Compiling cell v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "8f4829272819d97bf9f68ed9114467fab20ffc9dec0b93a20cea5dc62ff99863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4829272819d97bf9f68ed9114467fab20ffc9dec0b93a20cea5dc62ff99863", kill_on_drop: false }`
[INFO] [stdout] 8f4829272819d97bf9f68ed9114467fab20ffc9dec0b93a20cea5dc62ff99863
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 90f18d187b8e2d874ba12bed48807a0c22dedce37e52108d24085b87f9ebbb05
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "90f18d187b8e2d874ba12bed48807a0c22dedce37e52108d24085b87f9ebbb05", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cell-4e7d7055f7157b2a
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cell-542400efd14c753f
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test as_ptr ... ok
[INFO] [stdout] test cell_set ... ok
[INFO] [stdout] test cell_replace ... ok
[INFO] [stdout] test double_imm_borrow ... ok
[INFO] [stdout] test imm_release_borrow_mut ... ok
[INFO] [stdout] test mut_release_borrow_mut ... ok
[INFO] [stdout] test no_double_borrow_mut ... ok
[INFO] [stdout] test no_imm_then_borrow_mut ... ok
[INFO] [stdout] test no_mut_then_imm_borrow ... ok
[INFO] [stdout] test ref_clone_updates_flag ... ok
[INFO] [stdout] test cell_into_inner ... ok
[INFO] [stdout] test ref_map_accessor ... ok
[INFO] [stdout] test ref_map_does_not_update_flag ... ok
[INFO] [stdout] test ref_map_split ... ok
[INFO] [stdout] test ref_map_split_updates_flag ... ok
[INFO] [stdout] test ref_mut_map_accessor ... ok
[INFO] [stdout] test ref_mut_map_split ... ok
[INFO] [stdout] test refcell_default ... ok
[INFO] [stdout] test cell_default ... ok
[INFO] [stdout] test double_borrow_single_release_no_borrow_mut ... ok
[INFO] [stdout] test ref_and_refmut_have_sensible_show ... ok
[INFO] [stdout] test refcell_unsized ... ok
[INFO] [stdout] test refval_clone ... ok
[INFO] [stdout] test refval_debug ... ok
[INFO] [stdout] test refval_map ... ok
[INFO] [stdout] test refval_with_iterator ... ok
[INFO] [stdout] test refvalmut ... ok
[INFO] [stdout] test refcell_replace_borrows ... ok
[INFO] [stdout] test discard_doesnt_unborrow ... ok
[INFO] [stdout] test refcell_swap_borrows ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cell
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::into_inner (line 114) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::borrow (line 214) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::borrow_mut (line 292) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::new (line 97) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::get_mut (line 387) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::replace_with (line 162) ... ok
[INFO] [stdout] test src/cell.rs - cell::Ref::map_split (line 616) ... ok
[INFO] [stdout] test src/cell.rs - cell::Ref::map (line 587) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::replace (line 141) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::borrow_mut (line 304) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::borrow (line 225) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::as_ptr (line 359) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::try_borrow (line 253) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::swap (line 187) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefMut::map (line 667) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::try_borrow_mut (line 332) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefMut::map_split (line 705) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "90f18d187b8e2d874ba12bed48807a0c22dedce37e52108d24085b87f9ebbb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90f18d187b8e2d874ba12bed48807a0c22dedce37e52108d24085b87f9ebbb05", kill_on_drop: false }`
[INFO] [stdout] 90f18d187b8e2d874ba12bed48807a0c22dedce37e52108d24085b87f9ebbb05