[INFO] fetching crate cached 0.16.0...
[INFO] testing cached-0.16.0 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate cached 0.16.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate cached 0.16.0 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cached 0.16.0
[INFO] finished tweaking crates.io crate cached 0.16.0
[INFO] tweaked toml for crates.io crate cached 0.16.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate cached 0.16.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bcab0f2cf7a1e1a3b6b9a2039935f41aa29164ade9e799c50dd61012777be67
[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" "1bcab0f2cf7a1e1a3b6b9a2039935f41aa29164ade9e799c50dd61012777be67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bcab0f2cf7a1e1a3b6b9a2039935f41aa29164ade9e799c50dd61012777be67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bcab0f2cf7a1e1a3b6b9a2039935f41aa29164ade9e799c50dd61012777be67", kill_on_drop: false }`
[INFO] [stdout] 1bcab0f2cf7a1e1a3b6b9a2039935f41aa29164ade9e799c50dd61012777be67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8bb4a5edfc85172c823abc934398a66cebe285cdedf2c20b69afeeca1a0dc58
[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" "b8bb4a5edfc85172c823abc934398a66cebe285cdedf2c20b69afeeca1a0dc58", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling cache-padded v1.1.0
[INFO] [stderr]    Compiling waker-fn v1.0.0
[INFO] [stderr]    Compiling parking v1.0.3
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling fastrand v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling concurrent-queue v1.1.1
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling kv-log-macro v1.0.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling blocking v0.4.6
[INFO] [stderr]    Compiling smol v0.1.18
[INFO] [stderr]    Compiling async-std v1.6.2
[INFO] [stderr]    Compiling cached_proc_macro v0.1.2
[INFO] [stderr]    Compiling cached v0.16.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/stores.rs:630:9
[INFO] [stdout]     |
[INFO] [stdout] 630 |         std::mem::replace(self, HashMap::new());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.23s
[INFO] running `Command { std: "docker" "inspect" "b8bb4a5edfc85172c823abc934398a66cebe285cdedf2c20b69afeeca1a0dc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8bb4a5edfc85172c823abc934398a66cebe285cdedf2c20b69afeeca1a0dc58", kill_on_drop: false }`
[INFO] [stdout] b8bb4a5edfc85172c823abc934398a66cebe285cdedf2c20b69afeeca1a0dc58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8929c0d449d2885dd4a3541e88bcab0acb20e00b751775d98d00eccb9fa29234
[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" "8929c0d449d2885dd4a3541e88bcab0acb20e00b751775d98d00eccb9fa29234", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.5.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/stores.rs:630:9
[INFO] [stdout]     |
[INFO] [stdout] 630 |         std::mem::replace(self, HashMap::new());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling cached v0.16.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/stores.rs:630:9
[INFO] [stdout]     |
[INFO] [stdout] 630 |         std::mem::replace(self, HashMap::new());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.78s
[INFO] running `Command { std: "docker" "inspect" "8929c0d449d2885dd4a3541e88bcab0acb20e00b751775d98d00eccb9fa29234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8929c0d449d2885dd4a3541e88bcab0acb20e00b751775d98d00eccb9fa29234", kill_on_drop: false }`
[INFO] [stdout] 8929c0d449d2885dd4a3541e88bcab0acb20e00b751775d98d00eccb9fa29234
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d36f1090bf2fd395a7c029b5fa7cd79f2e6a43779cf4c6a91abf2e2216621b33
[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" "d36f1090bf2fd395a7c029b5fa7cd79f2e6a43779cf4c6a91abf2e2216621b33", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/stores.rs:630:9
[INFO] [stderr]     |
[INFO] [stderr] 630 |         std::mem::replace(self, HashMap::new());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/stores.rs:630:9
[INFO] [stderr]     |
[INFO] [stderr] 630 |         std::mem::replace(self, HashMap::new());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cached-fa9dcd85e6ca7630
[INFO] [stdout] running 10 tests
[INFO] [stdout] test stores::tests::basic_cache ... ok
[INFO] [stdout] test stores::tests::sized_cache_get_mut ... ok
[INFO] [stdout] test stores::tests::sized_cache ... ok
[INFO] [stdout] test stores::tests::clear ... ok
[INFO] [stdout] test stores::tests::size_cache_racing_keys_eviction_regression ... ok
[INFO] [stdout] test stores::tests::hashmap ... ok
[INFO] [stdout] test stores::tests::remove ... ok
[INFO] [stdout] test stores::tests::reset ... ok
[INFO] [stdout] test stores::tests::get_or_set_with ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cached-54b51acfd9487306
[INFO] [stdout] test stores::tests::timed_cache ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test cache_result_key ... ok
[INFO] [stdout] test cache_result_no_default ... ok
[INFO] [stdout] test test_can_fail ... ok
[INFO] [stdout] test test_string_cache ... ok
[INFO] [stdout] test test_proc_cached_result ... ok
[INFO] [stdout] test test_unbound_cache ... ok
[INFO] [stdout] test test_sized_cache ... ok
[INFO] [stdout] test test_racing_duplicate_keys_do_not_duplicate_sized_cache_ordering ... ok
[INFO] [stdout] test test_timed_cache_key ... ok
[INFO] [stdout] test test_timed_cache ... ok
[INFO] [stderr]    Doc-tests cached
[INFO] [stdout] test test_sized_cache_key ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - (line 216) ... ignored
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 115) ... ok
[INFO] [stdout] test src/lib.rs - (line 190) ... ok
[INFO] [stdout] test src/lib.rs - (line 160) ... ok
[INFO] [stdout] test src/lib.rs - (line 136) ... ok
[INFO] [stdout] test src/lib.rs - (line 247) ... ok
[INFO] [stdout] test src/lib.rs - (line 62) ... ok
[INFO] [stdout] test src/lib.rs - (line 47) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d36f1090bf2fd395a7c029b5fa7cd79f2e6a43779cf4c6a91abf2e2216621b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d36f1090bf2fd395a7c029b5fa7cd79f2e6a43779cf4c6a91abf2e2216621b33", kill_on_drop: false }`
[INFO] [stdout] d36f1090bf2fd395a7c029b5fa7cd79f2e6a43779cf4c6a91abf2e2216621b33