[INFO] cloning repository https://github.com/cladur/root_finder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cladur/root_finder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcladur%2Froot_finder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcladur%2Froot_finder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8830820cd433b749e5043f62cf35089cce57d8d
[INFO] testing cladur/root_finder/c8830820cd433b749e5043f62cf35089cce57d8d against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcladur%2Froot_finder" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cladur/root_finder
[INFO] finished tweaking git repo https://github.com/cladur/root_finder
[INFO] tweaked toml for git repo https://github.com/cladur/root_finder written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cladur/root_finder on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cladur/root_finder 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e43c1b482ae5d8217697cc52b9ddc3d475219b82b552d93c024a433ad0cc6f29
[INFO] running `Command { std: "docker" "start" "-a" "e43c1b482ae5d8217697cc52b9ddc3d475219b82b552d93c024a433ad0cc6f29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e43c1b482ae5d8217697cc52b9ddc3d475219b82b552d93c024a433ad0cc6f29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e43c1b482ae5d8217697cc52b9ddc3d475219b82b552d93c024a433ad0cc6f29", kill_on_drop: false }`
[INFO] [stdout] e43c1b482ae5d8217697cc52b9ddc3d475219b82b552d93c024a433ad0cc6f29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a9316cfa3eaa5d339742061853bb4590fe900c6fd3612a1aef2a191f4d9c00b
[INFO] running `Command { std: "docker" "start" "-a" "2a9316cfa3eaa5d339742061853bb4590fe900c6fd3612a1aef2a191f4d9c00b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
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[INFO] [stderr]    Compiling memchr v2.4.1
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[INFO] [stderr]    Compiling lazy_static v1.4.0
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[INFO] [stderr]    Compiling bitflags v1.3.2
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[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling serde v1.0.136
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[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
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[INFO] [stderr]    Compiling parking v2.0.0
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[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling mio v0.8.1
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[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling wayland-cursor v0.29.4
[INFO] [stderr]    Compiling wayland-egl v0.29.4
[INFO] [stderr]    Compiling bytemuck v1.8.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling emath v0.17.0
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling epaint v0.17.0
[INFO] [stderr]    Compiling zvariant_derive v3.1.2
[INFO] [stderr]    Compiling zbus_macros v2.1.1
[INFO] [stderr]    Compiling tracing v0.1.32
[INFO] [stderr]    Compiling egui v0.17.0
[INFO] [stderr]    Compiling epi v0.17.0
[INFO] [stderr]    Compiling enumflags2 v0.7.3
[INFO] [stderr]    Compiling zvariant v3.1.2
[INFO] [stderr]    Compiling zbus_names v2.1.0
[INFO] [stderr]    Compiling zbus v2.1.1
[INFO] [stderr]    Compiling smithay-clipboard v0.6.5
[INFO] [stderr]    Compiling copypasta v0.7.1
[INFO] [stderr]    Compiling egui-winit v0.17.0
[INFO] [stderr]    Compiling glutin v0.28.0
[INFO] [stderr]    Compiling egui_glow v0.17.0
[INFO] [stderr]    Compiling eframe v0.17.0
[INFO] [stderr]    Compiling root_finder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `f64::consts::PI`
[INFO] [stdout]  --> src/methods.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{f64::consts::PI, mem::discriminant};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth_root` is never used
[INFO] [stdout]   --> src/methods.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn nth_root(x: f64, n: u32) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 50s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2a9316cfa3eaa5d339742061853bb4590fe900c6fd3612a1aef2a191f4d9c00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a9316cfa3eaa5d339742061853bb4590fe900c6fd3612a1aef2a191f4d9c00b", kill_on_drop: false }`
[INFO] [stdout] 2a9316cfa3eaa5d339742061853bb4590fe900c6fd3612a1aef2a191f4d9c00b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22069d769325feec352428291181b002bb24bded4460234ca04c724a4c271038
[INFO] running `Command { std: "docker" "start" "-a" "22069d769325feec352428291181b002bb24bded4460234ca04c724a4c271038", kill_on_drop: false }`
[INFO] [stderr]    Compiling root_finder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `f64::consts::PI`
[INFO] [stdout]  --> src/methods.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{f64::consts::PI, mem::discriminant};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth_root` is never used
[INFO] [stdout]   --> src/methods.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn nth_root(x: f64, n: u32) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "22069d769325feec352428291181b002bb24bded4460234ca04c724a4c271038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22069d769325feec352428291181b002bb24bded4460234ca04c724a4c271038", kill_on_drop: false }`
[INFO] [stdout] 22069d769325feec352428291181b002bb24bded4460234ca04c724a4c271038
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0ba247eec54ab9c2fa4e8f8a4b2bfc2366e4c4ad20582fb780af31b0b55e7aea
[INFO] running `Command { std: "docker" "start" "-a" "0ba247eec54ab9c2fa4e8f8a4b2bfc2366e4c4ad20582fb780af31b0b55e7aea", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `f64::consts::PI`
[INFO] [stderr]  --> src/methods.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{f64::consts::PI, mem::discriminant};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `nth_root` is never used
[INFO] [stderr]   --> src/methods.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn nth_root(x: f64, n: u32) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `root_finder` (bin "root_finder" test) generated 2 warnings (run `cargo fix --bin "root_finder" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/root_finder-ae2b3bfb94cd58f7)
[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" "0ba247eec54ab9c2fa4e8f8a4b2bfc2366e4c4ad20582fb780af31b0b55e7aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ba247eec54ab9c2fa4e8f8a4b2bfc2366e4c4ad20582fb780af31b0b55e7aea", kill_on_drop: false }`
[INFO] [stdout] 0ba247eec54ab9c2fa4e8f8a4b2bfc2366e4c4ad20582fb780af31b0b55e7aea