[INFO] crate persy 0.9.0 is already in cache
[INFO] checking persy-0.9.0 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate persy 0.9.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate persy 0.9.0 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate persy 0.9.0
[INFO] finished tweaking crates.io crate persy 0.9.0
[INFO] tweaked toml for crates.io crate persy 0.9.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate persy 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5e2d0b8224af04cb7baf1544ae188e10e6fc554be624c633d933363b2fb70bb1
[INFO] running `"docker" "start" "-a" "5e2d0b8224af04cb7baf1544ae188e10e6fc554be624c633d933363b2fb70bb1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking unsigned-varint v0.3.1
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking persy v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr] warning: unused return value of `std::vec::Vec::<T>::split_off` that must be used
[INFO] [stderr]    --> src/snapshot.rs:355:29
[INFO] [stderr]     |
[INFO] [stderr] 355 | ...                   v.split_off(index);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr] warning: unused return value of `std::vec::Vec::<T>::split_off` that must be used
[INFO] [stderr]    --> src/snapshot.rs:355:29
[INFO] [stderr]     |
[INFO] [stderr] 355 | ...                   v.split_off(index);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]     --> src/lib.rs:1856:13
[INFO] [stderr]      |
[INFO] [stderr] 1856 |             std::mem::replace(&mut prepared.finalize, None);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]     --> src/lib.rs:1884:13
[INFO] [stderr]      |
[INFO] [stderr] 1884 |             std::mem::replace(&mut prepared.finalize, None);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]     --> src/lib.rs:1896:13
[INFO] [stderr]      |
[INFO] [stderr] 1896 |             std::mem::replace(&mut prepared.finalize, None);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]     --> src/lib.rs:1936:13
[INFO] [stderr]      |
[INFO] [stderr] 1936 |             std::mem::replace(&mut prepared.finalize, None);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]     --> src/lib.rs:1979:13
[INFO] [stderr]      |
[INFO] [stderr] 1979 |             std::mem::replace(&mut prepared.finalize, None);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]     --> src/lib.rs:1988:13
[INFO] [stderr]      |
[INFO] [stderr] 1988 |             std::mem::replace(&mut prepared.finalize, None);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.26s
[INFO] running `"docker" "inspect" "5e2d0b8224af04cb7baf1544ae188e10e6fc554be624c633d933363b2fb70bb1"`
[INFO] running `"docker" "rm" "-f" "5e2d0b8224af04cb7baf1544ae188e10e6fc554be624c633d933363b2fb70bb1"`
[INFO] [stdout] 5e2d0b8224af04cb7baf1544ae188e10e6fc554be624c633d933363b2fb70bb1