[INFO] fetching crate velociplot 0.1.0...
[INFO] testing velociplot-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate velociplot 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate velociplot 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate velociplot 0.1.0
[INFO] tweaked toml for crates.io crate velociplot 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate velociplot 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate velociplot 0.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b512fa0f8008864e0ac609ef2db993471aebc06d7fd5dd9e6fe6642574d995f
[INFO] running `Command { std: "docker" "start" "-a" "8b512fa0f8008864e0ac609ef2db993471aebc06d7fd5dd9e6fe6642574d995f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b512fa0f8008864e0ac609ef2db993471aebc06d7fd5dd9e6fe6642574d995f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b512fa0f8008864e0ac609ef2db993471aebc06d7fd5dd9e6fe6642574d995f", kill_on_drop: false }`
[INFO] [stdout] 8b512fa0f8008864e0ac609ef2db993471aebc06d7fd5dd9e6fe6642574d995f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00d23c7468a8da4e11d657d00c1bca3647104da001ffc3a357d4ca0bd09fbace
[INFO] running `Command { std: "docker" "start" "-a" "00d23c7468a8da4e11d657d00c1bca3647104da001ffc3a357d4ca0bd09fbace", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling strict-num v0.1.1
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling ttf-parser v0.21.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling tiny-skia-path v0.11.4
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling fontdue v0.9.3
[INFO] [stderr]    Compiling tiny-skia v0.11.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling velociplot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.36s
[INFO] running `Command { std: "docker" "inspect" "00d23c7468a8da4e11d657d00c1bca3647104da001ffc3a357d4ca0bd09fbace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d23c7468a8da4e11d657d00c1bca3647104da001ffc3a357d4ca0bd09fbace", kill_on_drop: false }`
[INFO] [stdout] 00d23c7468a8da4e11d657d00c1bca3647104da001ffc3a357d4ca0bd09fbace
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3dfc664039103dc176dd8165312a36427d06a5f70b61c6baf49756a1c2cae23
[INFO] running `Command { std: "docker" "start" "-a" "e3dfc664039103dc176dd8165312a36427d06a5f70b61c6baf49756a1c2cae23", kill_on_drop: false }`
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling velociplot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find module or crate `polars` in this scope
[INFO] [stdout]  --> examples/polars_integration.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use polars::prelude::*;
[INFO] [stdout]   |     ^^^^^^ use of unresolved module or unlinked crate `polars`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `polars`, use `cargo add polars` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> examples/polars_integration.rs:303:5
[INFO] [stdout]     |
[INFO] [stdout]  19 |         return Ok(());
[INFO] [stdout]     |         ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 303 |     Ok(())
[INFO] [stdout]     |     ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `velociplot` (example "polars_integration") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e3dfc664039103dc176dd8165312a36427d06a5f70b61c6baf49756a1c2cae23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3dfc664039103dc176dd8165312a36427d06a5f70b61c6baf49756a1c2cae23", kill_on_drop: false }`
[INFO] [stdout] e3dfc664039103dc176dd8165312a36427d06a5f70b61c6baf49756a1c2cae23