[INFO] fetching crate twisterl-rs 0.1.0...
[INFO] building twisterl-rs-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate twisterl-rs 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate twisterl-rs 0.1.0
[INFO] finished tweaking crates.io crate twisterl-rs 0.1.0
[INFO] tweaked toml for crates.io crate twisterl-rs 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twisterl-rs 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate twisterl-rs 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f567d83de1ddbc1f2b31b7e0f185eb017fe92f5f6b96afb3d724641f4c9564db
[INFO] running `Command { std: "docker" "start" "-a" "f567d83de1ddbc1f2b31b7e0f185eb017fe92f5f6b96afb3d724641f4c9564db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f567d83de1ddbc1f2b31b7e0f185eb017fe92f5f6b96afb3d724641f4c9564db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f567d83de1ddbc1f2b31b7e0f185eb017fe92f5f6b96afb3d724641f4c9564db", kill_on_drop: false }`
[INFO] [stdout] f567d83de1ddbc1f2b31b7e0f185eb017fe92f5f6b96afb3d724641f4c9564db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4edecc56c4dfc13420737f0ca6ee456dc08ad413ae6dbcc900ef82dc8a33a7f9
[INFO] running `Command { std: "docker" "start" "-a" "4edecc56c4dfc13420737f0ca6ee456dc08ad413ae6dbcc900ef82dc8a33a7f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling bytemuck v1.19.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.15.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling dyn-clone v1.0.19
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling safe_arch v0.7.2
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling wide v0.7.28
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling simba v0.9.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling nalgebra-macros v0.2.2
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling nalgebra v0.33.1
[INFO] [stderr]    Compiling twisterl-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `difficulty`
[INFO] [stdout]   --> src/rl/env.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_difficulty(&mut self, difficulty: usize){}
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]   --> src/rl/tree.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Node<T> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 19 |     idx: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/evaluate.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/search.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn ucb(&self, child: &MCTSNode, C: f32) -> f32 {
[INFO] [stdout]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/search.rs:77:41
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn next(&self, node_idx: usize, C: f32) -> usize {
[INFO] [stdout]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/rl/search.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     C: f32,
[INFO] [stdout]     |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/solve.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `C` should have a snake case name
[INFO] [stdout]   --> src/collector/az.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub C: f32,
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/solve.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/collector/az.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         C: f32,
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.21s
[INFO] running `Command { std: "docker" "inspect" "4edecc56c4dfc13420737f0ca6ee456dc08ad413ae6dbcc900ef82dc8a33a7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4edecc56c4dfc13420737f0ca6ee456dc08ad413ae6dbcc900ef82dc8a33a7f9", kill_on_drop: false }`
[INFO] [stdout] 4edecc56c4dfc13420737f0ca6ee456dc08ad413ae6dbcc900ef82dc8a33a7f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cd5c4410fe8fda10471908b7df2ddae7f899d53b91cdd7ea9023ca312b3d083
[INFO] running `Command { std: "docker" "start" "-a" "5cd5c4410fe8fda10471908b7df2ddae7f899d53b91cdd7ea9023ca312b3d083", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `difficulty`
[INFO] [stdout]   --> src/rl/env.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_difficulty(&mut self, difficulty: usize){}
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]   --> src/rl/tree.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Node<T> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 19 |     idx: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/evaluate.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/search.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn ucb(&self, child: &MCTSNode, C: f32) -> f32 {
[INFO] [stdout]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/search.rs:77:41
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn next(&self, node_idx: usize, C: f32) -> usize {
[INFO] [stdout]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/rl/search.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     C: f32,
[INFO] [stdout]     |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/solve.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `C` should have a snake case name
[INFO] [stdout]   --> src/collector/az.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub C: f32,
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/solve.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling twisterl-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/collector/az.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         C: f32,
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `difficulty`
[INFO] [stdout]   --> src/rl/env.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_difficulty(&mut self, difficulty: usize){}
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]   --> src/rl/tree.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Node<T> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 19 |     idx: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `C` should have a snake case name
[INFO] [stdout]   --> src/collector/az.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub C: f32,
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/collector/az.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         C: f32,
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/search.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn ucb(&self, child: &MCTSNode, C: f32) -> f32 {
[INFO] [stdout]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/solve.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/solve.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/evaluate.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     C: f32,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/rl/search.rs:77:41
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn next(&self, node_idx: usize, C: f32) -> usize {
[INFO] [stdout]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/rl/search.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     C: f32,
[INFO] [stdout]     |     ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "5cd5c4410fe8fda10471908b7df2ddae7f899d53b91cdd7ea9023ca312b3d083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cd5c4410fe8fda10471908b7df2ddae7f899d53b91cdd7ea9023ca312b3d083", kill_on_drop: false }`
[INFO] [stdout] 5cd5c4410fe8fda10471908b7df2ddae7f899d53b91cdd7ea9023ca312b3d083