[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: unable to create temporary file: No space left on device
[INFO] [stderr] fatal: failed to write object
[INFO] [stderr] fatal: unpack-objects failed
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: file write error: No space left on device
[INFO] [stderr] fatal: unable to write loose object file
[INFO] [stderr] fatal: unpack-objects failed
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-rebase.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust/hooks/pre-rebase.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 3)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: unable to create temporary file: No space left on device
[INFO] [stderr] fatal: failed to write object
[INFO] [stderr] fatal: unpack-objects failed
[WARN] Retrying crate fetch in 3 seconds (attempt 4)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/update.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust/hooks/update.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 5)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust/refs/heads: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 6)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/info/exclude' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust/info/exclude': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 7)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/commit-msg.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust/hooks/commit-msg.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 8)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/post-update.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust/hooks/post-update.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 9)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-push.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust/hooks/pre-push.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 10)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-push.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust/hooks/pre-push.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 11)
[INFO] cloning repository https://github.com/visnkmr/opentelemetrytest_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/visnkmr/opentelemetrytest_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 597b100949656ce621e6e427d1758229ede2506b
[INFO] testing visnkmr/opentelemetrytest_rust against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvisnkmr%2Fopentelemetrytest_rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/visnkmr/opentelemetrytest_rust on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/visnkmr/opentelemetrytest_rust
[INFO] finished tweaking git repo https://github.com/visnkmr/opentelemetrytest_rust
[INFO] tweaked toml for git repo https://github.com/visnkmr/opentelemetrytest_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/visnkmr/opentelemetrytest_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opentelemetry-semantic-conventions v0.8.0
[INFO] [stderr]   Downloaded opentelemetry-jaeger v0.15.0
[INFO] [stderr]   Downloaded fltk-sys v1.4.8
[INFO] [stderr]   Downloaded fltk v1.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d2a102e461b7dfb0f09f4643b9e43bc82421a5f5e15c2c23f6701e3951ec25f
[INFO] running `Command { std: "docker" "start" "-a" "6d2a102e461b7dfb0f09f4643b9e43bc82421a5f5e15c2c23f6701e3951ec25f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d2a102e461b7dfb0f09f4643b9e43bc82421a5f5e15c2c23f6701e3951ec25f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d2a102e461b7dfb0f09f4643b9e43bc82421a5f5e15c2c23f6701e3951ec25f", kill_on_drop: false }`
[INFO] [stdout] 6d2a102e461b7dfb0f09f4643b9e43bc82421a5f5e15c2c23f6701e3951ec25f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02cc82fac0ebfeb4547976f2074a6b33c6c6126f79fbe78ab3314956f28ac2ec
[INFO] running `Command { std: "docker" "start" "-a" "02cc82fac0ebfeb4547976f2074a6b33c6c6126f79fbe78ab3314956f28ac2ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling pin-project-lite v0.2.10
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling async-trait v0.1.72
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling serde v1.0.177
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde_derive v1.0.177
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling integer-encoding v1.1.7
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling ttf-parser v0.19.1
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling fltk-sys v1.4.8
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling thrift v0.13.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]    Compiling pin-project v1.1.2
[INFO] [stderr]    Compiling futures-executor v0.3.28
[INFO] [stderr]    Compiling opentelemetry_api v0.19.0
[INFO] [stderr]    Compiling futures v0.3.28
[INFO] [stderr]    Compiling opentelemetry-http v0.8.0
[INFO] [stderr]    Compiling tokio-stream v0.1.14
[INFO] [stderr]    Compiling opentelemetry v0.16.0
[INFO] [stderr]    Compiling opentelemetry-semantic-conventions v0.8.0
[INFO] [stderr]    Compiling opentelemetry-jaeger v0.15.0
[INFO] [stderr]    Compiling fltk v1.4.8
[INFO] [stderr]    Compiling testotel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `sync::mpsc`, `thread`, `time::Duration`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{time::Duration, error::Error, thread, sync::mpsc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^                ^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Key`, `SpanKind`, `TracerProvider`
[INFO] [stdout]   --> src/main.rs:13:77
[INFO] [stdout]    |
[INFO] [stdout] 13 | ...t, SpanKind, Span, get_active_span}, sdk::{trace::{Config, TracerProvider}, Resource, propagation::TraceContextPropagator}, KeyValue, global, Key, C...
[INFO] [stdout]    |       ^^^^^^^^                                                ^^^^^^^^^^^^^^                                                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut k=false;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut k=false;
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cxtin`
[INFO] [stdout]   --> src/main.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     get_active_span(|cxtin| async{
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_cxtin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | /         tokio::spawn(tokio::spawn(async move{
[INFO] [stdout] 52 | |             let cx = Context::current();
[INFO] [stdout] 53 | |             let tracer = global::tracer("example-opentelemetry/thread");
[INFO] [stdout] 54 | |             let mut span = tracer.start("thread_code");
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | |     .with_context(cx)
[INFO] [stdout] 79 | |     .await;
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let _ = tokio::spawn(tokio::spawn(async move{
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.22s
[INFO] running `Command { std: "docker" "inspect" "02cc82fac0ebfeb4547976f2074a6b33c6c6126f79fbe78ab3314956f28ac2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02cc82fac0ebfeb4547976f2074a6b33c6c6126f79fbe78ab3314956f28ac2ec", kill_on_drop: false }`
[INFO] [stdout] 02cc82fac0ebfeb4547976f2074a6b33c6c6126f79fbe78ab3314956f28ac2ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c7e98f9f4711960a19f8e103e08cbb36594372df5fb702b702929cc8200977c
[INFO] running `Command { std: "docker" "start" "-a" "2c7e98f9f4711960a19f8e103e08cbb36594372df5fb702b702929cc8200977c", kill_on_drop: false }`
[INFO] [stderr]    Compiling testotel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `sync::mpsc`, `thread`, `time::Duration`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{time::Duration, error::Error, thread, sync::mpsc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^                ^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Key`, `SpanKind`, `TracerProvider`
[INFO] [stdout]   --> src/main.rs:13:77
[INFO] [stdout]    |
[INFO] [stdout] 13 | ...t, SpanKind, Span, get_active_span}, sdk::{trace::{Config, TracerProvider}, Resource, propagation::TraceContextPropagator}, KeyValue, global, Key, C...
[INFO] [stdout]    |       ^^^^^^^^                                                ^^^^^^^^^^^^^^                                                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut k=false;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut k=false;
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cxtin`
[INFO] [stdout]   --> src/main.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     get_active_span(|cxtin| async{
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_cxtin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | /         tokio::spawn(tokio::spawn(async move{
[INFO] [stdout] 52 | |             let cx = Context::current();
[INFO] [stdout] 53 | |             let tracer = global::tracer("example-opentelemetry/thread");
[INFO] [stdout] 54 | |             let mut span = tracer.start("thread_code");
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | |     .with_context(cx)
[INFO] [stdout] 79 | |     .await;
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let _ = tokio::spawn(tokio::spawn(async move{
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "2c7e98f9f4711960a19f8e103e08cbb36594372df5fb702b702929cc8200977c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c7e98f9f4711960a19f8e103e08cbb36594372df5fb702b702929cc8200977c", kill_on_drop: false }`
[INFO] [stdout] 2c7e98f9f4711960a19f8e103e08cbb36594372df5fb702b702929cc8200977c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3d4be17f4d04351973c8f62e904187e777117163d8a355def04cd7260d619689
[INFO] running `Command { std: "docker" "start" "-a" "3d4be17f4d04351973c8f62e904187e777117163d8a355def04cd7260d619689", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `sync::mpsc`, `thread`, `time::Duration`
[INFO] [stderr]  --> src/main.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{time::Duration, error::Error, thread, sync::mpsc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^                ^^^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Key`, `SpanKind`, `TracerProvider`
[INFO] [stderr]   --> src/main.rs:13:77
[INFO] [stderr]    |
[INFO] [stderr] 13 | ...t, SpanKind, Span, get_active_span}, sdk::{trace::{Config, TracerProvider}, Resource, propagation::TraceContextPropagator}, KeyValue, global, Key, C...
[INFO] [stderr]    |       ^^^^^^^^                                                ^^^^^^^^^^^^^^                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]    --> src/main.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let mut k=false;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let mut k=false;
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cxtin`
[INFO] [stderr]   --> src/main.rs:45:22
[INFO] [stderr]    |
[INFO] [stderr] 45 |     get_active_span(|cxtin| async{
[INFO] [stderr]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_cxtin`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 | /         tokio::spawn(tokio::spawn(async move{
[INFO] [stderr] 52 | |             let cx = Context::current();
[INFO] [stderr] 53 | |             let tracer = global::tracer("example-opentelemetry/thread");
[INFO] [stderr] 54 | |             let mut span = tracer.start("thread_code");
[INFO] [stderr] ...  |
[INFO] [stderr] 78 | |     .with_context(cx)
[INFO] [stderr] 79 | |     .await;
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let _ = tokio::spawn(tokio::spawn(async move{
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `testotel` (bin "testotel" test) generated 6 warnings (run `cargo fix --bin "testotel" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/testotel-1ec78b82db6e42a8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3d4be17f4d04351973c8f62e904187e777117163d8a355def04cd7260d619689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d4be17f4d04351973c8f62e904187e777117163d8a355def04cd7260d619689", kill_on_drop: false }`
[INFO] [stdout] 3d4be17f4d04351973c8f62e904187e777117163d8a355def04cd7260d619689
