[INFO] fetching crate potatonet-service-logger 0.4.1...
[INFO] checking potatonet-service-logger-0.4.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate potatonet-service-logger 0.4.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate potatonet-service-logger 0.4.1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate potatonet-service-logger 0.4.1
[INFO] finished tweaking crates.io crate potatonet-service-logger 0.4.1
[INFO] tweaked toml for crates.io crate potatonet-service-logger 0.4.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded potatonet-client v0.4.3
[INFO] [stderr]   Downloaded potatonet-codegen v0.4.3
[INFO] [stderr]   Downloaded potatonet-common v0.4.3
[INFO] [stderr]   Downloaded potatonet-node v0.4.3
[INFO] [stderr]   Downloaded potatonet-bus v0.4.3
[INFO] [stderr]   Downloaded potatonet v0.4.2
[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" "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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc3a9e10373ec33207f463e64d12104f42569eaa2f0d8729b9bd03a7c9460e31
[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" "fc3a9e10373ec33207f463e64d12104f42569eaa2f0d8729b9bd03a7c9460e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc3a9e10373ec33207f463e64d12104f42569eaa2f0d8729b9bd03a7c9460e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc3a9e10373ec33207f463e64d12104f42569eaa2f0d8729b9bd03a7c9460e31", kill_on_drop: false }`
[INFO] [stdout] fc3a9e10373ec33207f463e64d12104f42569eaa2f0d8729b9bd03a7c9460e31
[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" "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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--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] fbac4822db57b7835627e15a752517fbcc8fae28d9dec839a3ad6cf4ff1dbbb5
[INFO] running `Command { std: "docker" "start" "-a" "fbac4822db57b7835627e15a752517fbcc8fae28d9dec839a3ad6cf4ff1dbbb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking parking v2.0.0
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[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling os_info v1.3.3
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking version_check v0.9.2
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-task v0.3.8
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[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking resolv-conf v0.7.0
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[INFO] [stderr]    Compiling heck v0.3.1
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[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-process v1.0.1
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling darling_core v0.10.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling potatonet-codegen v0.4.3
[INFO] [stderr]    Compiling darling_macro v0.10.3
[INFO] [stderr]     Checking async-std v1.8.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]    Compiling darling v0.10.3
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]    Compiling serde_with_macros v1.3.0
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde_with v1.6.0
[INFO] [stderr]     Checking rmpv v0.4.6
[INFO] [stderr]     Checking potatonet-common v0.4.3
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking bson v0.14.1
[INFO] [stderr]     Checking potatonet-client v0.4.3
[INFO] [stderr]     Checking potatonet-bus v0.4.3
[INFO] [stderr]     Checking trust-dns-proto v0.19.6
[INFO] [stderr]     Checking potatonet-node v0.4.3
[INFO] [stderr]     Checking potatonet v0.4.2
[INFO] [stderr]     Checking trust-dns-resolver v0.19.6
[INFO] [stderr]     Checking mongodb v0.9.2
[INFO] [stderr]     Checking potatonet-service-logger v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bson::bson`
[INFO] [stdout]  --> src/mongo_backend.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bson::bson;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bson::bson`
[INFO] [stdout]  --> src/mongo_backend.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bson::bson;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 54s
[INFO] running `Command { std: "docker" "inspect" "fbac4822db57b7835627e15a752517fbcc8fae28d9dec839a3ad6cf4ff1dbbb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbac4822db57b7835627e15a752517fbcc8fae28d9dec839a3ad6cf4ff1dbbb5", kill_on_drop: false }`
[INFO] [stdout] fbac4822db57b7835627e15a752517fbcc8fae28d9dec839a3ad6cf4ff1dbbb5