[INFO] fetching crate potential 3.0.1...
[INFO] testing potential-3.0.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate potential 3.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate potential 3.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate potential 3.0.1
[INFO] tweaked toml for crates.io crate potential 3.0.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate potential 3.0.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate potential 3.0.1 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a397bd97103deb8d84f2f9a9e717594e16249a14b948f69223c62601298115d
[INFO] running `Command { std: "docker" "start" "-a" "1a397bd97103deb8d84f2f9a9e717594e16249a14b948f69223c62601298115d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a397bd97103deb8d84f2f9a9e717594e16249a14b948f69223c62601298115d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a397bd97103deb8d84f2f9a9e717594e16249a14b948f69223c62601298115d", kill_on_drop: false }`
[INFO] [stdout] 1a397bd97103deb8d84f2f9a9e717594e16249a14b948f69223c62601298115d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 054a99ae51222689cf5a8c3e83196fd9f19c63ccf4d9238a3d7e5330fdfacac1
[INFO] running `Command { std: "docker" "start" "-a" "054a99ae51222689cf5a8c3e83196fd9f19c63ccf4d9238a3d7e5330fdfacac1", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling arc-swap v1.7.1
[INFO] [stderr]    Compiling potential v3.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sync::Arc`
[INFO] [stdout]  --> src/stream.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sync::Arc,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "054a99ae51222689cf5a8c3e83196fd9f19c63ccf4d9238a3d7e5330fdfacac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "054a99ae51222689cf5a8c3e83196fd9f19c63ccf4d9238a3d7e5330fdfacac1", kill_on_drop: false }`
[INFO] [stdout] 054a99ae51222689cf5a8c3e83196fd9f19c63ccf4d9238a3d7e5330fdfacac1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] d3394f12fac3e1ac85943bffe9e1baeb284d5445373c2bdac3a333382f081554
[INFO] running `Command { std: "docker" "start" "-a" "d3394f12fac3e1ac85943bffe9e1baeb284d5445373c2bdac3a333382f081554", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling once_cell v1.20.3
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling futures-lite v2.6.0
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling potential v3.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sync::Arc`
[INFO] [stdout]  --> src/stream.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sync::Arc,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling event-listener-strategy v0.5.3
[INFO] [stderr]    Compiling async-broadcast v0.7.2
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]  --> examples/pubsub.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{iter, time::Instant};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::Arc`
[INFO] [stdout]  --> src/stream.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sync::Arc,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> examples/pubsub.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |     while let Ok(v) = subs.try_pop() {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.30s
[INFO] running `Command { std: "docker" "inspect" "d3394f12fac3e1ac85943bffe9e1baeb284d5445373c2bdac3a333382f081554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3394f12fac3e1ac85943bffe9e1baeb284d5445373c2bdac3a333382f081554", kill_on_drop: false }`
[INFO] [stdout] d3394f12fac3e1ac85943bffe9e1baeb284d5445373c2bdac3a333382f081554
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 73ea702c417ca56707369b442219b441cb71c4dca4a43948a1cd546295335d05
[INFO] running `Command { std: "docker" "start" "-a" "73ea702c417ca56707369b442219b441cb71c4dca4a43948a1cd546295335d05", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `sync::Arc`
[INFO] [stderr]  --> src/stream.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     sync::Arc,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `potential` (lib) generated 1 warning (run `cargo fix --lib -p potential` to apply 1 suggestion)
[INFO] [stderr] warning: unused import: `iter`
[INFO] [stderr]  --> examples/pubsub.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{iter, time::Instant};
[INFO] [stderr]   |           ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> examples/pubsub.rs:17:18
[INFO] [stderr]    |
[INFO] [stderr] 17 |     while let Ok(v) = subs.try_pop() {
[INFO] [stderr]    |                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `potential` (example "pubsub") generated 2 warnings (run `cargo fix --example "pubsub"` to apply 1 suggestion)
[INFO] [stderr] warning: `potential` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/potential-921e8a8e94bb9649)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test sync::sync_pub_sub ... ok
[INFO] [stdout] test stream::streams ... ok
[INFO] [stdout] test future::async_pub_sub ... ok
[INFO] [stdout] test future::async_threads_pub_sub ... ok
[INFO] [stdout] test sync::threads_multi_pub_sub ... ok
[INFO] [stdout] test sync::threads_pub_sub ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "73ea702c417ca56707369b442219b441cb71c4dca4a43948a1cd546295335d05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73ea702c417ca56707369b442219b441cb71c4dca4a43948a1cd546295335d05", kill_on_drop: false }`
[INFO] [stdout] 73ea702c417ca56707369b442219b441cb71c4dca4a43948a1cd546295335d05