[INFO] cloning repository https://github.com/anubhavg-icpl/logstream
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anubhavg-icpl/logstream" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanubhavg-icpl%2Flogstream", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b0e92ed08371d2c4b7304c6f2d6bb78e1b4ae8a
[INFO] checking anubhavg-icpl/logstream against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanubhavg-icpl%2Flogstream" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/anubhavg-icpl/logstream
[INFO] removed 0 missing examples
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[INFO] validating manifest of git repo https://github.com/anubhavg-icpl/logstream on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]     Checking config v0.14.1
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[INFO] [stderr]     Checking logstream v0.1.0 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> benches/performance_tests.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]   --> benches/performance_tests.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tokio::sync::Mutex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_async` found for mutable reference `&mut criterion::Bencher<'_>` in the current scope
[INFO] [stdout]   --> benches/performance_tests.rs:29:19
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 b.to_async(&rt).iter(|| async move {
[INFO] [stdout]    |                   ^^^^^^^^ method not found in `&mut criterion::Bencher<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_async` found for mutable reference `&mut criterion::Bencher<'_>` in the current scope
[INFO] [stdout]   --> benches/performance_tests.rs:78:19
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 b.to_async(&rt).iter(|| async move {
[INFO] [stdout]    |                   ^^^^^^^^ method not found in `&mut criterion::Bencher<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_async` found for mutable reference `&mut criterion::Bencher<'_>` in the current scope
[INFO] [stdout]    --> benches/performance_tests.rs:189:19
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 b.to_async(&rt).iter(|| async move {
[INFO] [stdout]     |                   ^^^^^^^^ method not found in `&mut criterion::Bencher<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_async` found for mutable reference `&mut criterion::Bencher<'_>` in the current scope
[INFO] [stdout]    --> benches/performance_tests.rs:241:11
[INFO] [stdout]     |
[INFO] [stdout] 241 |         b.to_async(&rt).iter(|| async {
[INFO] [stdout]     |           ^^^^^^^^ method not found in `&mut criterion::Bencher<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_async` found for mutable reference `&mut criterion::Bencher<'_>` in the current scope
[INFO] [stdout]    --> benches/performance_tests.rs:270:11
[INFO] [stdout]     |
[INFO] [stdout] 270 |         b.to_async(&rt).iter(|| async {
[INFO] [stdout]     |           ^^^^^^^^ method not found in `&mut criterion::Bencher<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_async` found for mutable reference `&mut criterion::Bencher<'_>` in the current scope
[INFO] [stdout]    --> benches/performance_tests.rs:322:15
[INFO] [stdout]     |
[INFO] [stdout] 322 |             b.to_async(&rt).iter(|| async move {
[INFO] [stdout]     |               ^^^^^^^^ method not found in `&mut criterion::Bencher<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_async` found for mutable reference `&mut criterion::Bencher<'_>` in the current scope
[INFO] [stdout]    --> benches/performance_tests.rs:367:19
[INFO] [stdout]     |
[INFO] [stdout] 367 |                 b.to_async(&rt).iter(|| async move {
[INFO] [stdout]     |                   ^^^^^^^^ method not found in `&mut criterion::Bencher<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `logstream` (bench "performance_tests") due to 7 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "45c916f55a8a3f3a765f08b6b14c9b7e2d85eb6c025898d3cda440f202595265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c916f55a8a3f3a765f08b6b14c9b7e2d85eb6c025898d3cda440f202595265", kill_on_drop: false }`
[INFO] [stdout] 45c916f55a8a3f3a765f08b6b14c9b7e2d85eb6c025898d3cda440f202595265