[INFO] fetching crate overtone 0.1.1...
[INFO] testing overtone-0.1.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate overtone 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate overtone 0.1.1
[INFO] finished tweaking crates.io crate overtone 0.1.1
[INFO] tweaked toml for crates.io crate overtone 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate overtone 0.1.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate overtone 0.1.1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a24ab1398bc8da6fc672b4beb3c62322f479d831d1c72743425fac69f158a324
[INFO] running `Command { std: "docker" "start" "-a" "a24ab1398bc8da6fc672b4beb3c62322f479d831d1c72743425fac69f158a324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a24ab1398bc8da6fc672b4beb3c62322f479d831d1c72743425fac69f158a324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24ab1398bc8da6fc672b4beb3c62322f479d831d1c72743425fac69f158a324", kill_on_drop: false }`
[INFO] [stdout] a24ab1398bc8da6fc672b4beb3c62322f479d831d1c72743425fac69f158a324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4fbc4c150e78ed8edee94c9601ae89a891100cd2190cdf970444ee7aad20b0f
[INFO] running `Command { std: "docker" "start" "-a" "c4fbc4c150e78ed8edee94c9601ae89a891100cd2190cdf970444ee7aad20b0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling proc-macro2 v1.0.72
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling winnow v0.5.31
[INFO] [stderr]    Compiling libloading v0.8.1
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling quote v1.0.34
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling serde_spanned v0.6.5
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling toml_edit v0.21.0
[INFO] [stderr]    Compiling toml v0.8.8
[INFO] [stderr]    Compiling overtone v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ArrangementHeader` is never constructed
[INFO] [stdout]  --> src/serialization/arrangement.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct ArrangementHeader {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArrangementHeaderInfo` is never constructed
[INFO] [stdout]  --> src/serialization/arrangement.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct ArrangementHeaderInfo {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArrangementHeaderEditorInfo` is never constructed
[INFO] [stdout]   --> src/serialization/arrangement.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ArrangementHeaderEditorInfo {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/project.rs:68:64
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn load_plugin(&'a mut self, id: String) -> Result<&'a LoadedPlugin, OvertoneApiError> {
[INFO] [stdout]    |                         --                                  -- ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |                                   |
[INFO] [stdout]    |                         the lifetime is named here          the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn load_plugin(&'a mut self, id: String) -> Result<&'a LoadedPlugin<'a>, OvertoneApiError> {
[INFO] [stdout]    |                                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.97s
[INFO] running `Command { std: "docker" "inspect" "c4fbc4c150e78ed8edee94c9601ae89a891100cd2190cdf970444ee7aad20b0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4fbc4c150e78ed8edee94c9601ae89a891100cd2190cdf970444ee7aad20b0f", kill_on_drop: false }`
[INFO] [stdout] c4fbc4c150e78ed8edee94c9601ae89a891100cd2190cdf970444ee7aad20b0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f54e1dc47c8c3690e2b363f600310154c3afe662290f7bbfab782cde93b7b165
[INFO] running `Command { std: "docker" "start" "-a" "f54e1dc47c8c3690e2b363f600310154c3afe662290f7bbfab782cde93b7b165", kill_on_drop: false }`
[INFO] [stdout] warning: struct `ArrangementHeader` is never constructed
[INFO] [stdout]  --> src/serialization/arrangement.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct ArrangementHeader {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArrangementHeaderInfo` is never constructed
[INFO] [stdout]  --> src/serialization/arrangement.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct ArrangementHeaderInfo {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling overtone v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ArrangementHeaderEditorInfo` is never constructed
[INFO] [stdout]   --> src/serialization/arrangement.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ArrangementHeaderEditorInfo {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/project.rs:68:64
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn load_plugin(&'a mut self, id: String) -> Result<&'a LoadedPlugin, OvertoneApiError> {
[INFO] [stdout]    |                         --                                  -- ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |                                   |
[INFO] [stdout]    |                         the lifetime is named here          the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn load_plugin(&'a mut self, id: String) -> Result<&'a LoadedPlugin<'a>, OvertoneApiError> {
[INFO] [stdout]    |                                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArrangementHeader` is never constructed
[INFO] [stdout]  --> src/serialization/arrangement.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct ArrangementHeader {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArrangementHeaderInfo` is never constructed
[INFO] [stdout]  --> src/serialization/arrangement.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct ArrangementHeaderInfo {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArrangementHeaderEditorInfo` is never constructed
[INFO] [stdout]   --> src/serialization/arrangement.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ArrangementHeaderEditorInfo {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/project.rs:68:64
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn load_plugin(&'a mut self, id: String) -> Result<&'a LoadedPlugin, OvertoneApiError> {
[INFO] [stdout]    |                         --                                  -- ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |                                   |
[INFO] [stdout]    |                         the lifetime is named here          the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn load_plugin(&'a mut self, id: String) -> Result<&'a LoadedPlugin<'a>, OvertoneApiError> {
[INFO] [stdout]    |                                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "f54e1dc47c8c3690e2b363f600310154c3afe662290f7bbfab782cde93b7b165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f54e1dc47c8c3690e2b363f600310154c3afe662290f7bbfab782cde93b7b165", kill_on_drop: false }`
[INFO] [stdout] f54e1dc47c8c3690e2b363f600310154c3afe662290f7bbfab782cde93b7b165
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 736e194cd14542df60a57e6c4ae1925b6e5ffc2e8283e95d1bfa5227bbcea7fd
[INFO] running `Command { std: "docker" "start" "-a" "736e194cd14542df60a57e6c4ae1925b6e5ffc2e8283e95d1bfa5227bbcea7fd", kill_on_drop: false }`
[INFO] [stderr] warning: struct `ArrangementHeader` is never constructed
[INFO] [stderr]  --> src/serialization/arrangement.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct ArrangementHeader {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArrangementHeaderInfo` is never constructed
[INFO] [stderr]  --> src/serialization/arrangement.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct ArrangementHeaderInfo {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArrangementHeaderEditorInfo` is never constructed
[INFO] [stderr]   --> src/serialization/arrangement.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct ArrangementHeaderEditorInfo {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/project.rs:68:64
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn load_plugin(&'a mut self, id: String) -> Result<&'a LoadedPlugin, OvertoneApiError> {
[INFO] [stderr]    |                         --                                  -- ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                         |                                   |
[INFO] [stderr]    |                         the lifetime is named here          the same lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn load_plugin(&'a mut self, id: String) -> Result<&'a LoadedPlugin<'a>, OvertoneApiError> {
[INFO] [stderr]    |                                                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `overtone` (lib) generated 4 warnings (run `cargo fix --lib -p overtone` to apply 1 suggestion)
[INFO] [stderr] warning: `overtone` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/overtone-be79ff482042a1bc)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests overtone
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 12) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "736e194cd14542df60a57e6c4ae1925b6e5ffc2e8283e95d1bfa5227bbcea7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "736e194cd14542df60a57e6c4ae1925b6e5ffc2e8283e95d1bfa5227bbcea7fd", kill_on_drop: false }`
[INFO] [stdout] 736e194cd14542df60a57e6c4ae1925b6e5ffc2e8283e95d1bfa5227bbcea7fd
