[INFO] fetching crate cell 0.1.8...
[INFO] testing cell-0.1.8 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate cell 0.1.8 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate cell 0.1.8 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 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-13/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7585ff6774f5b35403b9c19b0e15634f8938c828fdafe1f5f34f4b28688ae9f
[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" "f7585ff6774f5b35403b9c19b0e15634f8938c828fdafe1f5f34f4b28688ae9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7585ff6774f5b35403b9c19b0e15634f8938c828fdafe1f5f34f4b28688ae9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7585ff6774f5b35403b9c19b0e15634f8938c828fdafe1f5f34f4b28688ae9f", kill_on_drop: false }`
[INFO] [stdout] f7585ff6774f5b35403b9c19b0e15634f8938c828fdafe1f5f34f4b28688ae9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] e308bea4a26bdec4f9d9bdb853f7db4c0e536dab3beae33877a77366ff6564c2
[INFO] running `Command { std: "docker" "start" "-a" "e308bea4a26bdec4f9d9bdb853f7db4c0e536dab3beae33877a77366ff6564c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling cell v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "e308bea4a26bdec4f9d9bdb853f7db4c0e536dab3beae33877a77366ff6564c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e308bea4a26bdec4f9d9bdb853f7db4c0e536dab3beae33877a77366ff6564c2", kill_on_drop: false }`
[INFO] [stdout] e308bea4a26bdec4f9d9bdb853f7db4c0e536dab3beae33877a77366ff6564c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ab187baa917eed09c06ce198d6e3529b25fc3899b2123af901202784c0915f6
[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" "2ab187baa917eed09c06ce198d6e3529b25fc3899b2123af901202784c0915f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling cell v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `val`
[INFO] [stdout]    --> tests/cell.rs:367:3
[INFO] [stdout]     |
[INFO] [stdout] 367 |   val: u64,
[INFO] [stdout]     |   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "2ab187baa917eed09c06ce198d6e3529b25fc3899b2123af901202784c0915f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab187baa917eed09c06ce198d6e3529b25fc3899b2123af901202784c0915f6", kill_on_drop: false }`
[INFO] [stdout] 2ab187baa917eed09c06ce198d6e3529b25fc3899b2123af901202784c0915f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d75ab06d3865a89b616acdffa0d3a27caa1838c140a8d87802278ad61ecf7fd7
[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" "d75ab06d3865a89b616acdffa0d3a27caa1838c140a8d87802278ad61ecf7fd7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `val`
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> tests/cell.rs:367:3
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 367 |   val: u64,
[INFO] [stdout] 
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cell` (test "cell") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cell-5bf4a270545bd4d0)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/cell.rs (/opt/rustwide/target/debug/deps/cell-157e6513b760e02e)
[INFO] [stdout] running 30 tests
[INFO] [stdout] test as_ptr ... ok
[INFO] [stdout] test cell_default ... ok
[INFO] [stdout] test cell_into_inner ... ok
[INFO] [stdout] test cell_replace ... ok
[INFO] [stdout] test mut_release_borrow_mut ... ok
[INFO] [stdout] test no_double_borrow_mut ... 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_split ... ok
[INFO] [stdout] test refcell_default ... ok
[INFO] [stdout] test ref_mut_map_accessor ... ok
[INFO] [stdout] test no_imm_then_borrow_mut ... ok
[INFO] [stdout] test no_mut_then_imm_borrow ... ok
[INFO] [stdout] test cell_set ... ok
[INFO] [stdout] test refval_debug ... ok
[INFO] [stdout] test refval_map ... ok
[INFO] [stdout] test refvalmut ... ok
[INFO] [stdout] test refval_with_iterator ... ok
[INFO] [stdout] test ref_and_refmut_have_sensible_show ... ok
[INFO] [stdout] test ref_clone_updates_flag ... ok
[INFO] [stdout] test ref_map_accessor ... ok
[INFO] [stdout] test double_borrow_single_release_no_borrow_mut ... ok
[INFO] [stdout] test double_imm_borrow ... ok
[INFO] [stdout] test imm_release_borrow_mut ... ok
[INFO] [stdout] test refcell_unsized ... ok
[INFO] [stdout] test refval_clone ... ok
[INFO] [stdout] test discard_doesnt_unborrow - should panic ... ok
[INFO] [stdout] test refcell_swap_borrows - should panic ... ok
[INFO] [stdout] test refcell_replace_borrows - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cell
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::borrow (line 225) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::try_borrow (line 253) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::try_borrow_mut (line 332) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::into_inner (line 114) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::new (line 97) ... 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>::swap (line 187) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefMut::map (line 667) ... ok
[INFO] [stdout] test src/cell.rs - cell::Ref::map (line 587) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::borrow_mut (line 304) ... ok
[INFO] [stdout] test src/cell.rs - cell::Ref::map_split (line 616) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::replace_with (line 162) ... ok
[INFO] [stdout] test src/cell.rs - cell::RefCell<T>::as_ptr (line 359) ... 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 (line 141) ... 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; finished in 3.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d75ab06d3865a89b616acdffa0d3a27caa1838c140a8d87802278ad61ecf7fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d75ab06d3865a89b616acdffa0d3a27caa1838c140a8d87802278ad61ecf7fd7", kill_on_drop: false }`
[INFO] [stdout] d75ab06d3865a89b616acdffa0d3a27caa1838c140a8d87802278ad61ecf7fd7