[INFO] fetching crate metals-poly 0.1.1...
[INFO] testing metals-poly-0.1.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate metals-poly 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate metals-poly 0.1.1
[INFO] finished tweaking crates.io crate metals-poly 0.1.1
[INFO] tweaked toml for crates.io crate metals-poly 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate metals-poly 0.1.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 73 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.4.0 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded half v2.7.1
[INFO] [stderr]   Downloaded criterion v0.4.0
[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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbe1c5c99bdc18e80d0bc89dec361e78ad11d06ec101cf298914d45e4fdb66c4
[INFO] running `Command { std: "docker" "start" "-a" "dbe1c5c99bdc18e80d0bc89dec361e78ad11d06ec101cf298914d45e4fdb66c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbe1c5c99bdc18e80d0bc89dec361e78ad11d06ec101cf298914d45e4fdb66c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe1c5c99bdc18e80d0bc89dec361e78ad11d06ec101cf298914d45e4fdb66c4", kill_on_drop: false }`
[INFO] [stdout] dbe1c5c99bdc18e80d0bc89dec361e78ad11d06ec101cf298914d45e4fdb66c4
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11f19818c0a3bc245910109128a66afcd963b88df8964e85ebefd8b338c3c033
[INFO] running `Command { std: "docker" "start" "-a" "11f19818c0a3bc245910109128a66afcd963b88df8964e85ebefd8b338c3c033", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling metals-poly v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `Command { std: "docker" "inspect" "11f19818c0a3bc245910109128a66afcd963b88df8964e85ebefd8b338c3c033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11f19818c0a3bc245910109128a66afcd963b88df8964e85ebefd8b338c3c033", kill_on_drop: false }`
[INFO] [stdout] 11f19818c0a3bc245910109128a66afcd963b88df8964e85ebefd8b338c3c033
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f71b35a4a1fa9a50beb725859ac05b6c1cbdb272300d212799a6481269890357
[INFO] running `Command { std: "docker" "start" "-a" "f71b35a4a1fa9a50beb725859ac05b6c1cbdb272300d212799a6481269890357", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling textwrap v0.16.2
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling metals-poly v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.4.0
[INFO] [stdout] warning: struct `Decrement` is never constructed
[INFO] [stdout]    --> src/interface/mod.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     struct Decrement;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decrement_one` is never used
[INFO] [stdout]    --> src/interface/mod.rs:300:8
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn decrement_one<I, O>(input: I) -> O
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 40.82s
[INFO] running `Command { std: "docker" "inspect" "f71b35a4a1fa9a50beb725859ac05b6c1cbdb272300d212799a6481269890357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f71b35a4a1fa9a50beb725859ac05b6c1cbdb272300d212799a6481269890357", kill_on_drop: false }`
[INFO] [stdout] f71b35a4a1fa9a50beb725859ac05b6c1cbdb272300d212799a6481269890357
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02ec62dc0e3a16e733cac6938ec8ab6575870fb3961ba4a48cf201e92a0bb7a9
[INFO] running `Command { std: "docker" "start" "-a" "02ec62dc0e3a16e733cac6938ec8ab6575870fb3961ba4a48cf201e92a0bb7a9", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Decrement` is never constructed
[INFO] [stderr]    --> src/interface/mod.rs:238:12
[INFO] [stderr]     |
[INFO] [stderr] 238 |     struct Decrement;
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `decrement_one` is never used
[INFO] [stderr]    --> src/interface/mod.rs:300:8
[INFO] [stderr]     |
[INFO] [stderr] 300 |     fn decrement_one<I, O>(input: I) -> O
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `metals-poly` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metals_poly-50f8120cbb9de9db)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test interface::tests::it_checks_incr ... 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 metals_poly
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/interface/mod.rs - interface (line 36) ... ignored
[INFO] [stdout] test src/interface/mod.rs - interface::Interface (line 50) ... ignored
[INFO] [stdout] test src/interface/mod.rs - interface::Interface (line 115) - compile fail ... ok
[INFO] [stdout] test src/interface/mod.rs - interface::Interface (line 65) ... ok
[INFO] [stdout] test src/interface/mod.rs - interface::Interface (line 86) ... ok
[INFO] [stdout] test src/interface/mod.rs - interface::Interface (line 137) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "02ec62dc0e3a16e733cac6938ec8ab6575870fb3961ba4a48cf201e92a0bb7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ec62dc0e3a16e733cac6938ec8ab6575870fb3961ba4a48cf201e92a0bb7a9", kill_on_drop: false }`
[INFO] [stdout] 02ec62dc0e3a16e733cac6938ec8ab6575870fb3961ba4a48cf201e92a0bb7a9