[INFO] fetching crate moving_gc_arena 0.2.6...
[INFO] testing moving_gc_arena-0.2.6 against 1.44.0 for beta-1.45-1
[INFO] extracting crate moving_gc_arena 0.2.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate moving_gc_arena 0.2.6 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate moving_gc_arena 0.2.6
[INFO] finished tweaking crates.io crate moving_gc_arena 0.2.6
[INFO] tweaked toml for crates.io crate moving_gc_arena 0.2.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate moving_gc_arena 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8b7f12cf24249da1a7490721694ed1b17601d6c2249b679a4bd4bebc718f4484
[INFO] running `"docker" "start" "-a" "8b7f12cf24249da1a7490721694ed1b17601d6c2249b679a4bd4bebc718f4484"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling moving_gc_arena v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "8b7f12cf24249da1a7490721694ed1b17601d6c2249b679a4bd4bebc718f4484"`
[INFO] running `"docker" "rm" "-f" "8b7f12cf24249da1a7490721694ed1b17601d6c2249b679a4bd4bebc718f4484"`
[INFO] [stdout] 8b7f12cf24249da1a7490721694ed1b17601d6c2249b679a4bd4bebc718f4484
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b57973ec7384a2bd327068c5d8f355bd2f0f46c0cbc845e174654638c6f1f5cf
[INFO] running `"docker" "start" "-a" "b57973ec7384a2bd327068c5d8f355bd2f0f46c0cbc845e174654638c6f1f5cf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling moving_gc_arena v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:512:57
[INFO] [stderr]     |
[INFO] [stderr] 512 |         r1.deep_clone_into_with_mut(&mut r2, &mut rt2, |i, t| {
[INFO] [stderr]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:521:41
[INFO] [stderr]     |
[INFO] [stderr] 521 |         r1.dfs_mut_cstack(&[rt1.ix()], |i, t| {
[INFO] [stderr]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:524:41
[INFO] [stderr]     |
[INFO] [stderr] 524 |         r2.dfs_mut_cstack(&[rt2.ix()], |i, t| {
[INFO] [stderr]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rt0`
[INFO] [stderr]    --> src/lib.rs:506:13
[INFO] [stderr]     |
[INFO] [stderr] 506 |         let rt0 = r1.alloc(|_| Elem::new()).root();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rt0`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "b57973ec7384a2bd327068c5d8f355bd2f0f46c0cbc845e174654638c6f1f5cf"`
[INFO] running `"docker" "rm" "-f" "b57973ec7384a2bd327068c5d8f355bd2f0f46c0cbc845e174654638c6f1f5cf"`
[INFO] [stdout] b57973ec7384a2bd327068c5d8f355bd2f0f46c0cbc845e174654638c6f1f5cf
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3e6fb301593a6f5439676e2fe72bf38dab396a40e8d03b9fbf6750a2edfbacb9
[INFO] running `"docker" "start" "-a" "3e6fb301593a6f5439676e2fe72bf38dab396a40e8d03b9fbf6750a2edfbacb9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:512:57
[INFO] [stderr]     |
[INFO] [stderr] 512 |         r1.deep_clone_into_with_mut(&mut r2, &mut rt2, |i, t| {
[INFO] [stderr]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:521:41
[INFO] [stderr]     |
[INFO] [stderr] 521 |         r1.dfs_mut_cstack(&[rt1.ix()], |i, t| {
[INFO] [stderr]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:524:41
[INFO] [stderr]     |
[INFO] [stderr] 524 |         r2.dfs_mut_cstack(&[rt2.ix()], |i, t| {
[INFO] [stderr]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rt0`
[INFO] [stderr]    --> src/lib.rs:506:13
[INFO] [stderr]     |
[INFO] [stderr] 506 |         let rt0 = r1.alloc(|_| Elem::new()).root();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rt0`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/moving_gc_arena-a56e1d0ce97949b2
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::deep_clone_with_into_mut ... ok
[INFO] [stdout] test tests::indirect_correct ... ok
[INFO] [stdout] test tests::roots_are_root ... ok
[INFO] [stdout] test tests::upgrades_well_behaved ... ok
[INFO] [stdout] test tests::weaks_are_weak ... ok
[INFO] [stdout] test tests::check_impls ... ok
[INFO] [stdout] test tests::traverse_sound ... ok
[INFO] [stdout] test tests::deep_clone_sound ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests moving_gc_arena
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/region/mod.rs - region::Region<T>::gc (line 189) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3e6fb301593a6f5439676e2fe72bf38dab396a40e8d03b9fbf6750a2edfbacb9"`
[INFO] running `"docker" "rm" "-f" "3e6fb301593a6f5439676e2fe72bf38dab396a40e8d03b9fbf6750a2edfbacb9"`
[INFO] [stdout] 3e6fb301593a6f5439676e2fe72bf38dab396a40e8d03b9fbf6750a2edfbacb9