[INFO] fetching crate latency_trace 0.5.2...
[INFO] checking latency_trace-0.5.2 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate latency_trace 0.5.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate latency_trace 0.5.2 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate latency_trace 0.5.2
[INFO] finished tweaking crates.io crate latency_trace 0.5.2
[INFO] tweaked toml for crates.io crate latency_trace 0.5.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate latency_trace 0.5.2 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local_collect v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95a03c192588804fc1505164b8a188fa52f650bb2f4d671430abbc2bfd8e45de
[INFO] running `Command { std: "docker" "start" "-a" "95a03c192588804fc1505164b8a188fa52f650bb2f4d671430abbc2bfd8e45de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95a03c192588804fc1505164b8a188fa52f650bb2f4d671430abbc2bfd8e45de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95a03c192588804fc1505164b8a188fa52f650bb2f4d671430abbc2bfd8e45de", kill_on_drop: false }`
[INFO] [stdout] 95a03c192588804fc1505164b8a188fa52f650bb2f4d671430abbc2bfd8e45de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f782f0c8a9ce744b0cac51030da6d67bded73d5acf8d60cc08964d6a31f7dbcf
[INFO] running `Command { std: "docker" "start" "-a" "f782f0c8a9ce744b0cac51030da6d67bded73d5acf8d60cc08964d6a31f7dbcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]     Checking miniz_oxide v0.7.3
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking thread_local_collect v1.0.0
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]     Checking hdrhistogram v7.5.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking latency_trace v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]   --> examples/doc_async.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             tokio::time::sleep(Duration::from_micros(1200)).await;
[INFO] [stdout]    |             ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]   --> examples/doc_async.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     tokio::time::sleep(Duration::from_micros(800)).await;
[INFO] [stdout]    |     ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]   --> examples/doc_async_probed.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             tokio::time::sleep(Duration::from_micros(1200)).await;
[INFO] [stdout]    |             ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]   --> examples/doc_async_probed.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     tokio::time::sleep(Duration::from_micros(800)).await;
[INFO] [stdout]    |     ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `measure_latencies_tokio` found for struct `LatencyTrace` in the current scope
[INFO] [stdout]   --> examples/doc_async.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |       let latencies = LatencyTrace::activated_default()
[INFO] [stdout]    |  _____________________-
[INFO] [stdout] 29 | |         .unwrap()
[INFO] [stdout] 30 | |         .measure_latencies_tokio(f);
[INFO] [stdout]    | |_________-^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `measure_latencies` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 30 |         .measure_latencies(f);
[INFO] [stdout]    |          ~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `latency_trace` (example "doc_async") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `measure_latencies_probed_tokio` found for struct `LatencyTrace` in the current scope
[INFO] [stdout]   --> examples/doc_async_probed.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |       let probed = LatencyTrace::activated_default()
[INFO] [stdout]    |  __________________-
[INFO] [stdout] 29 | |         .unwrap()
[INFO] [stdout] 30 | |         .measure_latencies_probed_tokio(f)
[INFO] [stdout]    | |_________-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `measure_latencies_probed` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 30 |         .measure_latencies_probed(f)
[INFO] [stdout]    |          ~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `latency_trace` (example "doc_async_probed") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "f782f0c8a9ce744b0cac51030da6d67bded73d5acf8d60cc08964d6a31f7dbcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f782f0c8a9ce744b0cac51030da6d67bded73d5acf8d60cc08964d6a31f7dbcf", kill_on_drop: false }`
[INFO] [stdout] f782f0c8a9ce744b0cac51030da6d67bded73d5acf8d60cc08964d6a31f7dbcf
