[INFO] cloning repository https://github.com/cloudflare/mmap-sync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cloudflare/mmap-sync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcloudflare%2Fmmap-sync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcloudflare%2Fmmap-sync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20826943e6e95f6e28d1a4496d1621cebd4206a2
[INFO] checking cloudflare/mmap-sync against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcloudflare%2Fmmap-sync" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cloudflare/mmap-sync
[INFO] finished tweaking git repo https://github.com/cloudflare/mmap-sync
[INFO] tweaked toml for git repo https://github.com/cloudflare/mmap-sync written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cloudflare/mmap-sync on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 204 packages to latest compatible versions
[INFO] [stderr]       Adding bytecheck v0.6.12 (available: v0.8.2)
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.8.2)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding rkyv v0.7.46 (available: v0.8.16)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] [stderr]       Adding wyhash v0.5.0 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9362e6beb7ee5654da8305a6094cda91c493696241de1ff74184da8d4d59777
[INFO] running `Command { std: "docker" "start" "-a" "a9362e6beb7ee5654da8305a6094cda91c493696241de1ff74184da8d4d59777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9362e6beb7ee5654da8305a6094cda91c493696241de1ff74184da8d4d59777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9362e6beb7ee5654da8305a6094cda91c493696241de1ff74184da8d4d59777", kill_on_drop: false }`
[INFO] [stdout] a9362e6beb7ee5654da8305a6094cda91c493696241de1ff74184da8d4d59777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2534d113bb8aafe4e835e76652c0fcfb53122e17af30fd2116833c710adbca3a
[INFO] running `Command { std: "docker" "start" "-a" "2534d113bb8aafe4e835e76652c0fcfb53122e17af30fd2116833c710adbca3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling protobuf v3.7.2
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling autocfg v1.5.1
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling home v0.5.12
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling either v1.16.0
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]     Checking regex-syntax v0.8.10
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling cc v1.2.62
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking anstyle v1.0.14
[INFO] [stderr]     Checking uuid v1.23.1
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]     Checking clap_lex v1.1.0
[INFO] [stderr]    Compiling cpp_demangle v0.4.5
[INFO] [stderr]    Compiling rend v0.4.2
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking clap_builder v4.6.0
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling protobuf-support v3.7.2
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
[INFO] [stderr]     Checking bytemuck v1.25.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]    Compiling symbolic-demangle v12.18.3
[INFO] [stderr]     Checking rustc-demangle v0.1.27
[INFO] [stderr]    Compiling rkyv v0.7.46
[INFO] [stderr]     Checking equator v0.4.2
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]     Checking rgb v0.8.53
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]     Checking clap v4.6.1
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[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking memmap2 v0.9.10
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[INFO] [stderr]     Checking wait-timeout v0.2.1
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[INFO] [stderr]     Checking symbolic-common v12.18.3
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]     Checking quick-xml v0.26.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking str_stack v0.1.1
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking rusty-fork v0.3.1
[INFO] [stderr]     Checking wyhash v0.5.0
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking rand v0.9.4
[INFO] [stderr]     Checking aligned-vec v0.6.4
[INFO] [stderr]     Checking spin v0.10.0
[INFO] [stderr]     Checking thiserror v2.0.18
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.12
[INFO] [stderr]    Compiling rkyv_derive v0.7.46
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stderr]    Compiling protobuf-parse v3.7.2
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking inferno v0.11.21
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking proptest v1.11.0
[INFO] [stderr]     Checking rand v0.8.6
[INFO] [stderr]    Compiling protobuf-codegen v3.7.2
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]    Compiling pprof v0.15.0
[INFO] [stderr]     Checking mmap-sync v2.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `SingleWriter` is never constructed
[INFO] [stdout]    --> src/locks.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct SingleWriter {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `SingleWriterGuard` is never constructed
[INFO] [stdout]    --> src/locks.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct SingleWriterGuard<'a>(&'a mut MmapMut);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmap-sync` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2534d113bb8aafe4e835e76652c0fcfb53122e17af30fd2116833c710adbca3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2534d113bb8aafe4e835e76652c0fcfb53122e17af30fd2116833c710adbca3a", kill_on_drop: false }`
[INFO] [stdout] 2534d113bb8aafe4e835e76652c0fcfb53122e17af30fd2116833c710adbca3a
