[INFO] fetching crate rsbatch-maestro 0.2.1...
[INFO] testing rsbatch-maestro-0.2.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate rsbatch-maestro 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rsbatch-maestro 0.2.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rsbatch-maestro 0.2.1
[INFO] tweaked toml for crates.io crate rsbatch-maestro 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsbatch-maestro 0.2.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rsbatch-maestro 0.2.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotters-svg v0.3.6
[INFO] [stderr]   Downloaded plotters-backend v0.3.6
[INFO] [stderr]   Downloaded plotters v0.3.6
[INFO] [stderr]   Downloaded csv v1.3.0
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 525ae6d4e12ffb3cdd21892fd01ccfc05ba7b2acab9654eb6f6baef184fb50ea
[INFO] running `Command { std: "docker" "start" "-a" "525ae6d4e12ffb3cdd21892fd01ccfc05ba7b2acab9654eb6f6baef184fb50ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "525ae6d4e12ffb3cdd21892fd01ccfc05ba7b2acab9654eb6f6baef184fb50ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "525ae6d4e12ffb3cdd21892fd01ccfc05ba7b2acab9654eb6f6baef184fb50ea", kill_on_drop: false }`
[INFO] [stdout] 525ae6d4e12ffb3cdd21892fd01ccfc05ba7b2acab9654eb6f6baef184fb50ea
[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_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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93b5e63a163670555cbfe3d6771991dbabf54e4a650e1f9513edce646c617fb2
[INFO] running `Command { std: "docker" "start" "-a" "93b5e63a163670555cbfe3d6771991dbabf54e4a650e1f9513edce646c617fb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsbatch-maestro v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | use std::cmp;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "93b5e63a163670555cbfe3d6771991dbabf54e4a650e1f9513edce646c617fb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93b5e63a163670555cbfe3d6771991dbabf54e4a650e1f9513edce646c617fb2", kill_on_drop: false }`
[INFO] [stdout] 93b5e63a163670555cbfe3d6771991dbabf54e4a650e1f9513edce646c617fb2
[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_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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c0527cf1ec7c8368a64a39c86bcef2181b963e361c5497558bc7022fa941427
[INFO] running `Command { std: "docker" "start" "-a" "3c0527cf1ec7c8368a64a39c86bcef2181b963e361c5497558bc7022fa941427", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling plotters-backend v0.3.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling plotters-svg v0.3.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | use std::cmp;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling plotters v0.3.6
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling rsbatch-maestro v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | use std::cmp;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rseven_splitter`
[INFO] [stdout]  --> examples/basic_usage.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rseven_splitter::even_split;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `rseven_splitter`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rseven_splitter`, use `cargo add rseven_splitter` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsbatch-maestro` (example "basic_usage") due to 2 previous errors
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> examples/basic_usage.rs:17:36
[INFO] [stdout]    |
[INFO] [stdout] 17 |             for (i, batch_size) in batch_sizes.iter().enumerate() {
[INFO] [stdout]    |                                    ^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c0527cf1ec7c8368a64a39c86bcef2181b963e361c5497558bc7022fa941427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0527cf1ec7c8368a64a39c86bcef2181b963e361c5497558bc7022fa941427", kill_on_drop: false }`
[INFO] [stdout] 3c0527cf1ec7c8368a64a39c86bcef2181b963e361c5497558bc7022fa941427