[INFO] cloning repository https://github.com/sjm42/beacon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjm42/beacon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjm42%2Fbeacon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjm42%2Fbeacon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3a5b70921a54651b27a63fa79693612a0dfc1a3
[INFO] building sjm42/beacon against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjm42%2Fbeacon" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sjm42/beacon on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/sjm42/beacon
[INFO] finished tweaking git repo https://github.com/sjm42/beacon
[INFO] tweaked toml for git repo https://github.com/sjm42/beacon written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sjm42/beacon 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded safe-regex-macro v0.3.0
[INFO] [stderr]   Downloaded safe-quote v1.0.40
[INFO] [stderr]   Downloaded safe-proc-macro2 v1.0.95
[INFO] [stderr]   Downloaded safe-regex-compiler v0.3.0
[INFO] [stderr]   Downloaded safe-regex v0.3.0
[INFO] [stderr]   Downloaded build-data v0.3.3
[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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 723e85c48285013d2060de649f4a0228b049eb9b0eaa8f6a6284bdd0a8338a62
[INFO] running `Command { std: "docker" "start" "-a" "723e85c48285013d2060de649f4a0228b049eb9b0eaa8f6a6284bdd0a8338a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "723e85c48285013d2060de649f4a0228b049eb9b0eaa8f6a6284bdd0a8338a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "723e85c48285013d2060de649f4a0228b049eb9b0eaa8f6a6284bdd0a8338a62", kill_on_drop: false }`
[INFO] [stdout] 723e85c48285013d2060de649f4a0228b049eb9b0eaa8f6a6284bdd0a8338a62
[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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcf84693db23dd777a92f4304469c9681bbdcc4eb08ef916862fc393323342ea
[INFO] running `Command { std: "docker" "start" "-a" "fcf84693db23dd777a92f4304469c9681bbdcc4eb08ef916862fc393323342ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling anstyle-query v1.1.3
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling anstream v0.6.19
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling safe-quote v1.0.40
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling clap_builder v4.5.39
[INFO] [stderr]    Compiling safe-regex-compiler v0.3.0
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling safe-regex-macro v0.3.0
[INFO] [stderr]    Compiling safe-regex v0.3.0
[INFO] [stderr]    Compiling build-data v0.3.3
[INFO] [stderr]    Compiling beacon v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     build_data::set_GIT_BRANCH();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = build_data::set_GIT_BRANCH();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     build_data::set_GIT_COMMIT();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let _ = build_data::set_GIT_COMMIT();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     build_data::set_SOURCE_TIMESTAMP();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let _ = build_data::set_SOURCE_TIMESTAMP();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     build_data::set_RUSTC_VERSION();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let _ = build_data::set_RUSTC_VERSION();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     build_data::no_debug_rebuilds();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let _ = build_data::no_debug_rebuilds();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling tracing-attributes v0.1.29
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling clap v4.5.39
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `Command { std: "docker" "inspect" "fcf84693db23dd777a92f4304469c9681bbdcc4eb08ef916862fc393323342ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcf84693db23dd777a92f4304469c9681bbdcc4eb08ef916862fc393323342ea", kill_on_drop: false }`
[INFO] [stdout] fcf84693db23dd777a92f4304469c9681bbdcc4eb08ef916862fc393323342ea
[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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21f866927ceb941dfc5aad4cba099c6823889e04523c7c1f7973488c35373e8f
[INFO] running `Command { std: "docker" "start" "-a" "21f866927ceb941dfc5aad4cba099c6823889e04523c7c1f7973488c35373e8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling beacon v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     build_data::set_GIT_BRANCH();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = build_data::set_GIT_BRANCH();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     build_data::set_GIT_COMMIT();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let _ = build_data::set_GIT_COMMIT();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     build_data::set_SOURCE_TIMESTAMP();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let _ = build_data::set_SOURCE_TIMESTAMP();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     build_data::set_RUSTC_VERSION();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let _ = build_data::set_RUSTC_VERSION();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> build.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     build_data::no_debug_rebuilds();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let _ = build_data::no_debug_rebuilds();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "21f866927ceb941dfc5aad4cba099c6823889e04523c7c1f7973488c35373e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f866927ceb941dfc5aad4cba099c6823889e04523c7c1f7973488c35373e8f", kill_on_drop: false }`
[INFO] [stdout] 21f866927ceb941dfc5aad4cba099c6823889e04523c7c1f7973488c35373e8f