[INFO] fetching crate enhance 0.0.1...
[INFO] testing enhance-0.0.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate enhance 0.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate enhance 0.0.1
[INFO] finished tweaking crates.io crate enhance 0.0.1
[INFO] tweaked toml for crates.io crate enhance 0.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate enhance 0.0.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c51ac63c11a9c998018f9415e53a572a75933ef199f08c8e97e4ec40801fabce
[INFO] running `Command { std: "docker" "start" "-a" "c51ac63c11a9c998018f9415e53a572a75933ef199f08c8e97e4ec40801fabce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c51ac63c11a9c998018f9415e53a572a75933ef199f08c8e97e4ec40801fabce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51ac63c11a9c998018f9415e53a572a75933ef199f08c8e97e4ec40801fabce", kill_on_drop: false }`
[INFO] [stdout] c51ac63c11a9c998018f9415e53a572a75933ef199f08c8e97e4ec40801fabce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 17e63336fbdd3ee9fd9a1ce9404be924ab9feb47d2ada2d57bfd71f1c21b0f9e
[INFO] running `Command { std: "docker" "start" "-a" "17e63336fbdd3ee9fd9a1ce9404be924ab9feb47d2ada2d57bfd71f1c21b0f9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling enhance v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/basic/mod.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 |     collections::{BTreeMap, BTreeSet},
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnhanceCost` is never constructed
[INFO] [stdout]  --> src/basic/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct EnhanceCost<T> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `total_rate` is never used
[INFO] [stdout]   --> src/basic/level/mod.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<T, R> EnhanceLevel<T, R> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn total_rate(&self) -> R
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `Command { std: "docker" "inspect" "17e63336fbdd3ee9fd9a1ce9404be924ab9feb47d2ada2d57bfd71f1c21b0f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17e63336fbdd3ee9fd9a1ce9404be924ab9feb47d2ada2d57bfd71f1c21b0f9e", kill_on_drop: false }`
[INFO] [stdout] 17e63336fbdd3ee9fd9a1ce9404be924ab9feb47d2ada2d57bfd71f1c21b0f9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 69437c6d424c0f60cbd5da9250a94183c2cf340d458d77ca3994a046ff2c2a30
[INFO] running `Command { std: "docker" "start" "-a" "69437c6d424c0f60cbd5da9250a94183c2cf340d458d77ca3994a046ff2c2a30", kill_on_drop: false }`
[INFO] [stderr]    Compiling enhance v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/basic/mod.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 |     collections::{BTreeMap, BTreeSet},
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnhanceCost` is never constructed
[INFO] [stdout]  --> src/basic/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct EnhanceCost<T> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `total_rate` is never used
[INFO] [stdout]   --> src/basic/level/mod.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<T, R> EnhanceLevel<T, R> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn total_rate(&self) -> R
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/basic/mod.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 |     collections::{BTreeMap, BTreeSet},
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnhanceCost` is never constructed
[INFO] [stdout]  --> src/basic/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct EnhanceCost<T> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `total_rate` is never used
[INFO] [stdout]   --> src/basic/level/mod.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<T, R> EnhanceLevel<T, R> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn total_rate(&self) -> R
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "69437c6d424c0f60cbd5da9250a94183c2cf340d458d77ca3994a046ff2c2a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69437c6d424c0f60cbd5da9250a94183c2cf340d458d77ca3994a046ff2c2a30", kill_on_drop: false }`
[INFO] [stdout] 69437c6d424c0f60cbd5da9250a94183c2cf340d458d77ca3994a046ff2c2a30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b3f940939899323fa3e2959ae949368f02a321393cebde4abccb1c2697144969
[INFO] running `Command { std: "docker" "start" "-a" "b3f940939899323fa3e2959ae949368f02a321393cebde4abccb1c2697144969", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `BTreeSet`
[INFO] [stderr]  --> src/basic/mod.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 |     collections::{BTreeMap, BTreeSet},
[INFO] [stderr]   |                             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `EnhanceCost` is never constructed
[INFO] [stderr]  --> src/basic/mod.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct EnhanceCost<T> {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `total_rate` is never used
[INFO] [stderr]   --> src/basic/level/mod.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | impl<T, R> EnhanceLevel<T, R> {
[INFO] [stderr]    | ----------------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 56 |     fn total_rate(&self) -> R
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `enhance` (lib) generated 3 warnings (run `cargo fix --lib -p enhance` to apply 1 suggestion)
[INFO] [stderr] warning: `enhance` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/enhance-55b7a907acbc0f13)
[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] [stderr]      Running tests/main.rs (/opt/rustwide/target/debug/deps/main-05db86aa41b499ba)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ready ... 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 enhance
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/basic/level/mod.rs - basic::level::EnhanceLevel<T,R>::simple (line 39) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b3f940939899323fa3e2959ae949368f02a321393cebde4abccb1c2697144969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f940939899323fa3e2959ae949368f02a321393cebde4abccb1c2697144969", kill_on_drop: false }`
[INFO] [stdout] b3f940939899323fa3e2959ae949368f02a321393cebde4abccb1c2697144969
