[INFO] fetching crate vulpo 0.2.0...
[INFO] checking vulpo-0.2.0 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate vulpo 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate vulpo 0.2.0 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vulpo 0.2.0
[INFO] finished tweaking crates.io crate vulpo 0.2.0
[INFO] tweaked toml for crates.io crate vulpo 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae5f6771bdbc8b149a16165328d7fa85e108e3db0b869d6133300f78df0eccfc
[INFO] running `Command { std: "docker" "start" "-a" "ae5f6771bdbc8b149a16165328d7fa85e108e3db0b869d6133300f78df0eccfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae5f6771bdbc8b149a16165328d7fa85e108e3db0b869d6133300f78df0eccfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae5f6771bdbc8b149a16165328d7fa85e108e3db0b869d6133300f78df0eccfc", kill_on_drop: false }`
[INFO] [stdout] ae5f6771bdbc8b149a16165328d7fa85e108e3db0b869d6133300f78df0eccfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68340d5b66f2c7b31bdce37925860b7fdfaeb634781796ecf2b345a5d735706c
[INFO] running `Command { std: "docker" "start" "-a" "68340d5b66f2c7b31bdce37925860b7fdfaeb634781796ecf2b345a5d735706c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling openssl v0.10.53
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling openssl-sys v0.9.88
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking regex v1.8.3
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.163
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.19
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking hyper v0.14.26
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking jsonwebtoken v7.2.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.18
[INFO] [stderr]     Checking vulpo v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |             let _ = mem::replace(&mut exp, new_keys.expire_at.lock().unwrap());
[INFO] [stdout]     |                 ^   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this binding will immediately drop the value assigned to it
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 102 |             let _unused = mem::replace(&mut exp, new_keys.expire_at.lock().unwrap());
[INFO] [stdout]     |                 ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 102 |             drop(mem::replace(&mut exp, new_keys.expire_at.lock().unwrap()));
[INFO] [stdout]     |             ~~~~~                                                          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vulpo` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |             let _ = mem::replace(&mut exp, new_keys.expire_at.lock().unwrap());
[INFO] [stdout]     |                 ^   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this binding will immediately drop the value assigned to it
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 102 |             let _unused = mem::replace(&mut exp, new_keys.expire_at.lock().unwrap());
[INFO] [stdout]     |                 ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 102 |             drop(mem::replace(&mut exp, new_keys.expire_at.lock().unwrap()));
[INFO] [stdout]     |             ~~~~~                                                          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vulpo` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "68340d5b66f2c7b31bdce37925860b7fdfaeb634781796ecf2b345a5d735706c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68340d5b66f2c7b31bdce37925860b7fdfaeb634781796ecf2b345a5d735706c", kill_on_drop: false }`
[INFO] [stdout] 68340d5b66f2c7b31bdce37925860b7fdfaeb634781796ecf2b345a5d735706c
