[INFO] cloning repository https://github.com/GregBowyer/opentelemetry-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GregBowyer/opentelemetry-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregBowyer%2Fopentelemetry-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregBowyer%2Fopentelemetry-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42f5abb96a4a3fc716d354f241870a87b9f1e5aa
[INFO] checking GregBowyer/opentelemetry-rs against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregBowyer%2Fopentelemetry-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/GregBowyer/opentelemetry-rs
[INFO] finished tweaking git repo https://github.com/GregBowyer/opentelemetry-rs
[INFO] tweaked toml for git repo https://github.com/GregBowyer/opentelemetry-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GregBowyer/opentelemetry-rs on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GregBowyer/opentelemetry-rs 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c906ffcc497c38a9595bdf898aeaaa5915d77df301fcb32c8cb1908ec1e9f17b
[INFO] running `Command { std: "docker" "start" "-a" "c906ffcc497c38a9595bdf898aeaaa5915d77df301fcb32c8cb1908ec1e9f17b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c906ffcc497c38a9595bdf898aeaaa5915d77df301fcb32c8cb1908ec1e9f17b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c906ffcc497c38a9595bdf898aeaaa5915d77df301fcb32c8cb1908ec1e9f17b", kill_on_drop: false }`
[INFO] [stdout] c906ffcc497c38a9595bdf898aeaaa5915d77df301fcb32c8cb1908ec1e9f17b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5130bd4ae1d839caa4f1b8f14cbc8805b99866340c1bc6016fdd2c2fe7660366
[INFO] running `Command { std: "docker" "start" "-a" "5130bd4ae1d839caa4f1b8f14cbc8805b99866340c1bc6016fdd2c2fe7660366", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling protobuf v2.6.2
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tempfile v3.0.8
[INFO] [stderr]     Checking opentelemetry_api v0.1.0 (/opt/rustwide/workdir/opentelemetry-api)
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]  --> opentelemetry-api/src/trace/tracer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: patterns aren't allowed in functions without bodies
[INFO] [stdout]  --> opentelemetry-api/src/context/mod.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn close(mut self);
[INFO] [stdout]   |              ^^^^^^^^ help: remove `mut` from the parameter: `self`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout]   = note: `#[deny(patterns_in_fns_without_body)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stdout] warning: unused variable: `measurements`
[INFO] [stdout]    --> opentelemetry-api/src/metric/meter.rs:177:29
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn record<I>(&mut self, measurements: I) where I: IntoIterator<Item=measure::NoopMeasurement> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_measurements`
[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]   --> opentelemetry-api/src/metric/measure.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn build(mut self) -> Result<M, M::Error> {
[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: `value`
[INFO] [stdout]   --> opentelemetry-api/src/metric/measure.rs:92:31
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn double_measurement<'a>(value: f64) -> Self::Measurement {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> opentelemetry-api/src/metric/measure.rs:96:29
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn long_measurement<'a>(value: i64) -> Self::Measurement {
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `builder`
[INFO] [stdout]    --> opentelemetry-api/src/metric/measure.rs:100:14
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn build(builder: MeasureBuilder<Self>) -> Result<Self, Self::Error> where Self: Sized {
[INFO] [stdout]     |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_builder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> opentelemetry-api/src/trace/trace_state.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut entries = self.entries.get_or_insert(self.parent.map_or(vec![], |x| x.entries.clone()));
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> opentelemetry-api/src/trace/trace_state.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let mut entries = self.entries.get_or_insert(self.parent.map_or(vec![], |x| x.entries.clone()));
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> opentelemetry-api/src/distributedcontext/mod.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn entry_value(&self, key: EntryKey) -> Option<&EntryValue>;
[INFO] [stdout]    |                    ^^^^^                           -----------
[INFO] [stdout]    |                    |                               ||
[INFO] [stdout]    |                    |                               |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                    |                               the lifetimes get resolved as `'_`
[INFO] [stdout]    |                    this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn entry_value(&self, key: EntryKey) -> Option<&EntryValue<'_>>;
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> opentelemetry-api/src/trace/event.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn attributes(&self) -> HashMap<&str, &AttributeValue>;
[INFO] [stdout]    |                   ^^^^^             ----  ---------------
[INFO] [stdout]    |                   |                 |     ||
[INFO] [stdout]    |                   |                 |     |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   |                 |     the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   |                 the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn attributes(&self) -> HashMap<&str, &AttributeValue<'_>>;
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> opentelemetry-api/src/trace/link.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn context(&self) -> SpanContext;
[INFO] [stdout]    |                ^^^^^     ----------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn context(&self) -> SpanContext<'_>;
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> opentelemetry-api/src/trace/link.rs:30:19
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn attributes(&self) -> HashMap<&str, &AttributeValue>;
[INFO] [stdout]    |                   ^^^^^             ----  ---------------
[INFO] [stdout]    |                   |                 |     ||
[INFO] [stdout]    |                   |                 |     |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   |                 |     the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   |                 the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn attributes(&self) -> HashMap<&str, &AttributeValue<'_>>;
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> opentelemetry-api/src/trace/trace_state.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn get(&self, key: &str) -> Option<&Entry> {
[INFO] [stdout]    |                ^^^^^                       ------
[INFO] [stdout]    |                |                           ||
[INFO] [stdout]    |                |                           |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                |                           the lifetimes get resolved as `'_`
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn get(&self, key: &str) -> Option<&Entry<'_>> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> opentelemetry-api/src/trace/trace_state.rs:120:51
[INFO] [stdout]     |
[INFO] [stdout] 120 |     }), "Key cannot contain characters outside of {'a'-'z', '0'-'9', _, -, *, / }");
[INFO] [stdout]     |                                                   ^                             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 120 |     }), "{}", "Key cannot contain characters outside of {'a'-'z', '0'-'9', _, -, *, / }");
[INFO] [stdout]     |         +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> opentelemetry-api/src/trace/sampler.rs:41:19
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn attributes(&self) -> HashMap<&str, &AttributeValue>;
[INFO] [stdout]    |                   ^^^^^             ----  ---------------
[INFO] [stdout]    |                   |                 |     ||
[INFO] [stdout]    |                   |                 |     |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   |                 |     the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   |                 the lifetimes get resolved as `'_`
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn attributes(&self) -> HashMap<&str, &AttributeValue<'_>>;
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `std::mem::needs_drop` to detect whether a type can be trivially dropped
[INFO] [stdout]   --> opentelemetry-api/src/trace/span.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub trait Span: Drop {
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> opentelemetry-api/src/trace/span.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn context(&self) -> &SpanContext;
[INFO] [stdout]    |                ^^^^^     ------------
[INFO] [stdout]    |                |         ||
[INFO] [stdout]    |                |         |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                |         the lifetimes get resolved as `'_`
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn context(&self) -> &SpanContext<'_>;
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `std::mem::needs_drop` to detect whether a type can be trivially dropped
[INFO] [stdout]  --> opentelemetry-api/src/context/mod.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Scope: Drop {
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `opentelemetry_api` (lib) due to 1 previous error; 18 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5130bd4ae1d839caa4f1b8f14cbc8805b99866340c1bc6016fdd2c2fe7660366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5130bd4ae1d839caa4f1b8f14cbc8805b99866340c1bc6016fdd2c2fe7660366", kill_on_drop: false }`
[INFO] [stdout] 5130bd4ae1d839caa4f1b8f14cbc8805b99866340c1bc6016fdd2c2fe7660366
