[INFO] fetching crate burn-collective 0.19.1...
[INFO] testing burn-collective-0.19.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate burn-collective 0.19.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate burn-collective 0.19.1
[INFO] finished tweaking crates.io crate burn-collective 0.19.1
[INFO] tweaked toml for crates.io crate burn-collective 0.19.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate burn-collective 0.19.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate burn-collective 0.19.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 858748fa56883bf319c2899843ffd96bec7b17c8610f472d9803f253cde43161
[INFO] running `Command { std: "docker" "start" "-a" "858748fa56883bf319c2899843ffd96bec7b17c8610f472d9803f253cde43161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "858748fa56883bf319c2899843ffd96bec7b17c8610f472d9803f253cde43161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "858748fa56883bf319c2899843ffd96bec7b17c8610f472d9803f253cde43161", kill_on_drop: false }`
[INFO] [stdout] 858748fa56883bf319c2899843ffd96bec7b17c8610f472d9803f253cde43161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 848a98e0876544368593538a3dfef4c852c5fad8419f878daffcd00fae409f7c
[INFO] running `Command { std: "docker" "start" "-a" "848a98e0876544368593538a3dfef4c852c5fad8419f878daffcd00fae409f7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling cubecl-common v0.8.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling spin v0.10.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling embassy-futures v0.1.2
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling web-time v1.1.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling rmp v0.8.14
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling axum-core v0.5.5
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling colored v3.0.0
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling matchit v0.8.4
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling bytemuck_derive v1.10.2
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling derive-new v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling derive_more v2.0.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling rmp-serde v1.3.0
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling float8 v0.4.2
[INFO] [stderr]    Compiling tungstenite v0.28.0
[INFO] [stderr]    Compiling rand_distr v0.5.1
[INFO] [stderr]    Compiling burn-common v0.19.1
[INFO] [stderr]    Compiling cubecl-quant v0.8.1
[INFO] [stderr]    Compiling hyper v1.7.0
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling tokio-tungstenite v0.28.0
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling burn-tensor v0.19.1
[INFO] [stderr]    Compiling hyper-util v0.1.17
[INFO] [stderr]    Compiling axum v0.8.6
[INFO] [stderr]    Compiling burn-communication v0.19.1
[INFO] [stderr]    Compiling burn-collective v0.19.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "848a98e0876544368593538a3dfef4c852c5fad8419f878daffcd00fae409f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "848a98e0876544368593538a3dfef4c852c5fad8419f878daffcd00fae409f7c", kill_on_drop: false }`
[INFO] [stdout] 848a98e0876544368593538a3dfef4c852c5fad8419f878daffcd00fae409f7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f23b19f8193df5d5a9321cae4b6d5f8e91fe0325b85576dcc5f1a3b81b3f65b
[INFO] running `Command { std: "docker" "start" "-a" "4f23b19f8193df5d5a9321cae4b6d5f8e91fe0325b85576dcc5f1a3b81b3f65b", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdd v3.0.10
[INFO] [stderr]    Compiling serial_test_derive v3.2.0
[INFO] [stderr]    Compiling scc v2.4.0
[INFO] [stderr]    Compiling serial_test v3.2.0
[INFO] [stderr]    Compiling burn-collective v0.19.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.33s
[INFO] running `Command { std: "docker" "inspect" "4f23b19f8193df5d5a9321cae4b6d5f8e91fe0325b85576dcc5f1a3b81b3f65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f23b19f8193df5d5a9321cae4b6d5f8e91fe0325b85576dcc5f1a3b81b3f65b", kill_on_drop: false }`
[INFO] [stdout] 4f23b19f8193df5d5a9321cae4b6d5f8e91fe0325b85576dcc5f1a3b81b3f65b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 386989724a6a245f267e5dd461ea27fc4d73525e9f258692ddd05dfc7d4879fc
[INFO] running `Command { std: "docker" "start" "-a" "386989724a6a245f267e5dd461ea27fc4d73525e9f258692ddd05dfc7d4879fc", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/burn_collective-b283b99ae2f9919c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test global::node::tree::tests::test_get_tree_topology_arity2_size7 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests burn_collective
[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" "386989724a6a245f267e5dd461ea27fc4d73525e9f258692ddd05dfc7d4879fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "386989724a6a245f267e5dd461ea27fc4d73525e9f258692ddd05dfc7d4879fc", kill_on_drop: false }`
[INFO] [stdout] 386989724a6a245f267e5dd461ea27fc4d73525e9f258692ddd05dfc7d4879fc