[INFO] cloning repository https://github.com/rust-lang-nursery/polonius
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang-nursery/polonius" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fpolonius", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fpolonius'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4b3684aea9add867c60b9509891b10d7a74f189
[INFO] testing rust-lang-nursery/polonius against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fpolonius" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-lang-nursery/polonius on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rust-lang-nursery/polonius
[INFO] finished tweaking git repo https://github.com/rust-lang-nursery/polonius
[INFO] tweaked toml for git repo https://github.com/rust-lang-nursery/polonius written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-lang-nursery/polonius already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded datafrog v2.0.1
[INFO] [stderr]   Downloaded pico-args v0.2.0
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5482df277d3636b02a7ce16b3e6f3bccbb9123e5fa27dffd65ca8e20d2515d86
[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" "5482df277d3636b02a7ce16b3e6f3bccbb9123e5fa27dffd65ca8e20d2515d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5482df277d3636b02a7ce16b3e6f3bccbb9123e5fa27dffd65ca8e20d2515d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5482df277d3636b02a7ce16b3e6f3bccbb9123e5fa27dffd65ca8e20d2515d86", kill_on_drop: false }`
[INFO] [stdout] 5482df277d3636b02a7ce16b3e6f3bccbb9123e5fa27dffd65ca8e20d2515d86
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] 2353a64d8af60ffdb8fa6b209e911005f3ed67aa6e351bcbb05300f6011f3cd1
[INFO] running `Command { std: "docker" "start" "-a" "2353a64d8af60ffdb8fa6b209e911005f3ed67aa6e351bcbb05300f6011f3cd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling datafrog v2.0.1
[INFO] [stderr]    Compiling pico-args v0.2.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling polonius-engine v0.12.1 (/opt/rustwide/workdir/polonius-engine)
[INFO] [stdout] warning: field is never read: `potential_errors`
[INFO] [stdout]    --> polonius-engine/src/output/mod.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     potential_errors: Option<FxHashSet<T::Loan>>,
[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]    Compiling polonius v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.45s
[INFO] running `Command { std: "docker" "inspect" "2353a64d8af60ffdb8fa6b209e911005f3ed67aa6e351bcbb05300f6011f3cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2353a64d8af60ffdb8fa6b209e911005f3ed67aa6e351bcbb05300f6011f3cd1", kill_on_drop: false }`
[INFO] [stdout] 2353a64d8af60ffdb8fa6b209e911005f3ed67aa6e351bcbb05300f6011f3cd1
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4da631acf5d0007af46611aaa3ba517fcb6df797e7723424a56e278510231bea
[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" "4da631acf5d0007af46611aaa3ba517fcb6df797e7723424a56e278510231bea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stdout] warning: field is never read: `potential_errors`
[INFO] [stdout]    --> polonius-engine/src/output/mod.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     potential_errors: Option<FxHashSet<T::Loan>>,
[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]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling lalrpop-util v0.19.5
[INFO] [stderr]    Compiling lalrpop v0.19.5
[INFO] [stderr]    Compiling polonius-parser v0.4.0 (/opt/rustwide/workdir/polonius-parser)
[INFO] [stderr]    Compiling polonius v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2m 01s
[INFO] running `Command { std: "docker" "inspect" "4da631acf5d0007af46611aaa3ba517fcb6df797e7723424a56e278510231bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da631acf5d0007af46611aaa3ba517fcb6df797e7723424a56e278510231bea", kill_on_drop: false }`
[INFO] [stdout] 4da631acf5d0007af46611aaa3ba517fcb6df797e7723424a56e278510231bea
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", 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] f1d0fa8619e0d6f4ba3691e1cf1d5d66440e6be1eb3de6412894a16900195381
[INFO] running `Command { std: "docker" "start" "-a" "f1d0fa8619e0d6f4ba3691e1cf1d5d66440e6be1eb3de6412894a16900195381", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `potential_errors`
[INFO] [stderr]    --> polonius-engine/src/output/mod.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     potential_errors: Option<FxHashSet<T::Loan>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polonius-a694ff4cc9fe9f4c)
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test test::errors_in_subset_relations_dataset ... ok
[INFO] [stdout] test test::smoke_test_success_2 ... ok
[INFO] [stdout] test test::successes_in_subset_relations_dataset ... ok
[INFO] [stdout] test test::test_insensitive_errors ... ok
[INFO] [stdout] test test::no_subset_symmetries_exist ... ok
[INFO] [stdout] test test::smoke_test_success_1 ... ok
[INFO] [stdout] test test::test_sensitive_passes_issue_47680 ... ok
[INFO] [stdout] test test::issue_47680::datafrog_opt ... ok
[INFO] [stdout] test test::conditional_init ... ok
[INFO] [stdout] test test::smoke_test_errors ... ok
[INFO] [stdout] test test::basic_move_error ... ok
[INFO] [stdout] test test::successes_in_move_errors_dataset ... ok
[INFO] [stdout] test test::vec_push_ref_foo1::datafrog_opt ... ok
[INFO] [stdout] test test::vec_push_ref_foo2::datafrog_opt ... ok
[INFO] [stdout] test test::issue_31567 ... ok
[INFO] [stdout] test test::escape_upvar_nested ... ok
[INFO] [stdout] test test::vec_push_ref_foo3::datafrog_opt ... ok
[INFO] [stdout] test test::illegal_subset_error ... ok
[INFO] [stdout] test test::send_is_not_static_std_sync ... ok
[INFO] [stdout] test test::known_placeholder_origin_subset ... ok
[INFO] [stdout] test test::borrowed_local_error ... ok
[INFO] [stdout] test program::tests::complete_program ... ok
[INFO] [stdout] test test::var_live_in_single_block ... ok
[INFO] [stdout] test test::var_live_in_successor_propagates_to_predecessor ... ok
[INFO] [stdout] test test::transitive_illegal_subset_error ... ok
[INFO] [stdout] test test::var_live_in_successor_killed_by_reassignment ... ok
[INFO] [stdout] test test::transitive_known_subset ... ok
[INFO] [stdout] test test::var_drop_used_simple ... ok
[INFO] [stdout] test test::smoke_test_ensuring_clap_facts_are_present ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 17.29s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polonius-8f92abd0d6b7b077)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests polonius
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f1d0fa8619e0d6f4ba3691e1cf1d5d66440e6be1eb3de6412894a16900195381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1d0fa8619e0d6f4ba3691e1cf1d5d66440e6be1eb3de6412894a16900195381", kill_on_drop: false }`
[INFO] [stdout] f1d0fa8619e0d6f4ba3691e1cf1d5d66440e6be1eb3de6412894a16900195381