[INFO] cloning repository https://github.com/ttys3/rust-otel-tracing-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ttys3/rust-otel-tracing-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttys3%2Frust-otel-tracing-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttys3%2Frust-otel-tracing-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0cb5c0418477c3a45e3902c51807e9b03bc0495c
[INFO] checking ttys3/rust-otel-tracing-demo against master#2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4 for pr-84385
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttys3%2Frust-otel-tracing-demo" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ttys3/rust-otel-tracing-demo on toolchain 2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ttys3/rust-otel-tracing-demo
[INFO] finished tweaking git repo https://github.com/ttys3/rust-otel-tracing-demo
[INFO] tweaked toml for git repo https://github.com/ttys3/rust-otel-tracing-demo written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ttys3/rust-otel-tracing-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opentelemetry-http v0.6.0
[INFO] [stderr]   Downloaded integer-encoding v3.0.4
[INFO] [stderr]   Downloaded opentelemetry-semantic-conventions v0.9.0
[INFO] [stderr]   Downloaded thrift v0.15.0
[INFO] [stderr]   Downloaded opentelemetry-jaeger v0.16.0
[INFO] [stderr]   Downloaded itertools v0.10.4
[INFO] running `Command { std: "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" "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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5f04b3793678fae628597aed9d8f469e1968e97cc01d2aa4226bcf28e3c2147
[INFO] running `Command { std: "docker" "start" "-a" "a5f04b3793678fae628597aed9d8f469e1968e97cc01d2aa4226bcf28e3c2147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5f04b3793678fae628597aed9d8f469e1968e97cc01d2aa4226bcf28e3c2147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5f04b3793678fae628597aed9d8f469e1968e97cc01d2aa4226bcf28e3c2147", kill_on_drop: false }`
[INFO] [stdout] a5f04b3793678fae628597aed9d8f469e1968e97cc01d2aa4226bcf28e3c2147
[INFO] running `Command { std: "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" "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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7b4e8ade78a6d240f507553fd332db384c7f7cb18f9ba741e30577f418e8408
[INFO] running `Command { std: "docker" "start" "-a" "a7b4e8ade78a6d240f507553fd332db384c7f7cb18f9ba741e30577f418e8408", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling itertools v0.10.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling tokio v1.21.1
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling thiserror v1.0.35
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling which v4.3.0
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling petgraph v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking integer-encoding v3.0.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking time v0.3.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking thrift v0.15.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking futures-executor v0.3.24
[INFO] [stderr]     Checking futures v0.3.24
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.35
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tracing-subscriber v0.3.15
[INFO] [stderr]    Compiling prost v0.9.0
[INFO] [stderr]    Compiling prost-types v0.9.0
[INFO] [stderr]    Compiling tonic-build v0.6.2
[INFO] [stderr]    Compiling opentelemetry-otlp v0.10.0
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking opentelemetry v0.17.0
[INFO] [stderr]     Checking h2 v0.3.14
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking opentelemetry-semantic-conventions v0.9.0
[INFO] [stderr]     Checking opentelemetry-http v0.6.0
[INFO] [stderr]     Checking tracing-opentelemetry v0.17.4
[INFO] [stderr]     Checking opentelemetry-jaeger v0.16.0
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking tonic v0.6.2
[INFO] [stderr]     Checking rust-otel-tracing-demo v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `warn`
[INFO] [stdout]  --> src/main.rs:7:76
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tracing::{trace_span, info_span, warn_span, error_span,  debug, info,  warn,error};
[INFO] [stdout]   |                                                                            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EnvFilter`
[INFO] [stdout]  --> src/main.rs:9:53
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tracing_subscriber::{fmt, layer::SubscriberExt, EnvFilter, Registry};
[INFO] [stdout]   |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `warn`
[INFO] [stdout]  --> src/main.rs:7:76
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tracing::{trace_span, info_span, warn_span, error_span,  debug, info,  warn,error};
[INFO] [stdout]   |                                                                            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EnvFilter`
[INFO] [stdout]  --> src/main.rs:9:53
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tracing_subscriber::{fmt, layer::SubscriberExt, EnvFilter, Registry};
[INFO] [stdout]   |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace::Tracer`
[INFO] [stdout]  --> src/main.rs:3:39
[INFO] [stdout]   |
[INFO] [stdout] 3 | use opentelemetry::{global, KeyValue, trace::Tracer};
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace::Tracer`
[INFO] [stdout]  --> src/main.rs:3:39
[INFO] [stdout]   |
[INFO] [stdout] 3 | use opentelemetry::{global, KeyValue, trace::Tracer};
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `username`, `display_name` and `email` are never read
[INFO] [stdout]    --> src/main.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 161 | struct UserInfo {
[INFO] [stdout]     |        -------- fields in this struct
[INFO] [stdout] 162 |     username: String,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 163 |     display_name: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 164 |     email: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UserInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `username`, `display_name` and `email` are never read
[INFO] [stdout]    --> src/main.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 161 | struct UserInfo {
[INFO] [stdout]     |        -------- fields in this struct
[INFO] [stdout] 162 |     username: String,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 163 |     display_name: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 164 |     email: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UserInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.28s
[INFO] running `Command { std: "docker" "inspect" "a7b4e8ade78a6d240f507553fd332db384c7f7cb18f9ba741e30577f418e8408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7b4e8ade78a6d240f507553fd332db384c7f7cb18f9ba741e30577f418e8408", kill_on_drop: false }`
[INFO] [stdout] a7b4e8ade78a6d240f507553fd332db384c7f7cb18f9ba741e30577f418e8408