[INFO] cloning repository https://github.com/TomaszRewak/metrics-hub
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TomaszRewak/metrics-hub" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomaszRewak%2Fmetrics-hub", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomaszRewak%2Fmetrics-hub'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2e50e9020798ae8c6213c919c87ee0e76d08fa7
[INFO] checking TomaszRewak/metrics-hub against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomaszRewak%2Fmetrics-hub" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TomaszRewak/metrics-hub on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TomaszRewak/metrics-hub
[INFO] finished tweaking git repo https://github.com/TomaszRewak/metrics-hub
[INFO] tweaked toml for git repo https://github.com/TomaszRewak/metrics-hub written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/TomaszRewak/metrics-hub already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", 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] 98075dd8ea9f8dc14fd034c1b74e3bfdcf5c9d0d55d21af869ae0a93c5a03bf8
[INFO] running `Command { std: "docker" "start" "-a" "98075dd8ea9f8dc14fd034c1b74e3bfdcf5c9d0d55d21af869ae0a93c5a03bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98075dd8ea9f8dc14fd034c1b74e3bfdcf5c9d0d55d21af869ae0a93c5a03bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98075dd8ea9f8dc14fd034c1b74e3bfdcf5c9d0d55d21af869ae0a93c5a03bf8", kill_on_drop: false }`
[INFO] [stdout] 98075dd8ea9f8dc14fd034c1b74e3bfdcf5c9d0d55d21af869ae0a93c5a03bf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] 68ef843e8cd9b8e8d3f95c2c89dae2624c6cbb4f08a1c036a50c3d68b6e67324
[INFO] running `Command { std: "docker" "start" "-a" "68ef843e8cd9b8e8d3f95c2c89dae2624c6cbb4f08a1c036a50c3d68b6e67324", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking metrics-model v0.1.0 (/opt/rustwide/workdir/metrics-model)
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking metrics-writer v0.1.0 (/opt/rustwide/workdir/metrics-writer)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> metrics-model/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> metrics-model/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     value: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bytestring v0.1.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> metrics-model/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> metrics-model/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     value: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking thread_local v1.0.1
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[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling cookie v0.14.2
[INFO] [stderr]     Checking tinyvec v1.0.1
[INFO] [stderr]     Checking metrics-hub v0.1.0 (/opt/rustwide/workdir/metrics-hub)
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking aho-corasick v0.7.14
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[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking threadpool v1.8.1
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[INFO] [stderr]     Checking resolv-conf v0.6.3
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[INFO] [stderr]     Checking parking_lot v0.11.0
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[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling actix-macros v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling actix-web-codegen v0.4.0
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking actix-codec v0.3.0
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]     Checking actix-threadpool v0.3.3
[INFO] [stderr]     Checking actix-rt v1.1.1
[INFO] [stderr]     Checking actix-service v1.0.6
[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking actix-utils v2.0.0
[INFO] [stderr]     Checking actix-server v1.0.4
[INFO] [stderr]     Checking actix-tls v2.0.0
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking actix-router v0.2.5
[INFO] [stderr]     Checking actix-testing v1.0.1
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]     Checking actix-connect v2.0.0
[INFO] [stderr]     Checking actix-http v2.1.0
[INFO] [stderr]     Checking awc v2.0.1
[INFO] [stderr]     Checking actix-web v3.2.0
[INFO] [stderr]     Checking metrics-server v0.1.0 (/opt/rustwide/workdir/metrics-server)
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> metrics-server/src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> metrics-server/src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `session_id`
[INFO] [stdout]   --> metrics-server/src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let session_id = SessionId::from(params.session_id);
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_session_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]   --> metrics-server/src/main.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     query: web::Query<GetMetricsQuery>,
[INFO] [stdout]    |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metrics_hub`
[INFO] [stdout]   --> metrics-server/src/main.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     metrics_hub: web::Data<Mutex<MetricsHub>>,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metrics_hub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `session_id`
[INFO] [stdout]   --> metrics-server/src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let session_id = SessionId::from(params.session_id);
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_session_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]   --> metrics-server/src/main.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     query: web::Query<GetMetricsQuery>,
[INFO] [stdout]    |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metrics_hub`
[INFO] [stdout]   --> metrics-server/src/main.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     metrics_hub: web::Data<Mutex<MetricsHub>>,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metrics_hub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout]   --> metrics-server/src/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     data: Entry,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `query`
[INFO] [stdout]   --> metrics-server/src/main.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     query: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout]   --> metrics-server/src/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     data: Entry,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `query`
[INFO] [stdout]   --> metrics-server/src/main.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     query: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 17s
[INFO] running `Command { std: "docker" "inspect" "68ef843e8cd9b8e8d3f95c2c89dae2624c6cbb4f08a1c036a50c3d68b6e67324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ef843e8cd9b8e8d3f95c2c89dae2624c6cbb4f08a1c036a50c3d68b6e67324", kill_on_drop: false }`
[INFO] [stdout] 68ef843e8cd9b8e8d3f95c2c89dae2624c6cbb4f08a1c036a50c3d68b6e67324