[INFO] cloning repository https://github.com/mrc-ide/outpack_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrc-ide/outpack_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrc-ide%2Foutpack_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrc-ide%2Foutpack_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89397649f79b0c8413d70bb74102b46a9c28e099
[INFO] testing mrc-ide/outpack_server against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrc-ide%2Foutpack_server" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mrc-ide/outpack_server
[INFO] finished tweaking git repo https://github.com/mrc-ide/outpack_server
[INFO] tweaked toml for git repo https://github.com/mrc-ide/outpack_server written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mrc-ide/outpack_server 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 git repo https://github.com/mrc-ide/outpack_server 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 689f28aa498ece1b62ef9a249be11319e58b0c099f3c874aeff20bcbfa54ce19
[INFO] running `Command { std: "docker" "start" "-a" "689f28aa498ece1b62ef9a249be11319e58b0c099f3c874aeff20bcbfa54ce19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "689f28aa498ece1b62ef9a249be11319e58b0c099f3c874aeff20bcbfa54ce19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "689f28aa498ece1b62ef9a249be11319e58b0c099f3c874aeff20bcbfa54ce19", kill_on_drop: false }`
[INFO] [stdout] 689f28aa498ece1b62ef9a249be11319e58b0c099f3c874aeff20bcbfa54ce19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d1af5c7ae8cb6039eec777f7a5c69f7aedcca20917393c0b61cf4533ca45ba3f
[INFO] running `Command { std: "docker" "start" "-a" "d1af5c7ae8cb6039eec777f7a5c69f7aedcca20917393c0b61cf4533ca45ba3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling tinyvec v1.9.0
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling vergen-lib v0.1.6
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling vergen v9.0.6
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling async-trait v0.1.69
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling equivalent v1.0.0
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling http v1.0.0
[INFO] [stderr]    Compiling deranged v0.4.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling vergen-git2 v1.0.5
[INFO] [stderr]    Compiling cc v1.2.26
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling rustix v0.36.17
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling axum-core v0.4.3
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling anstyle v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling procfs v0.14.2
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling rustix v0.37.22
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling anstream v0.6.4
[INFO] [stderr]    Compiling http-body v1.0.0
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling axum v0.7.4
[INFO] [stderr]    Compiling cached_proc_macro_types v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling clap_lex v0.6.0
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling cpufeatures v0.2.8
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling prometheus v0.13.3
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling uuid v1.7.0
[INFO] [stderr]    Compiling clap_builder v4.4.8
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling libgit2-sys v0.18.1+1.9.0
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling async_once v0.2.6
[INFO] [stderr]    Compiling matchit v0.7.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.101/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=235ba7dbe7730485 -C extra-filename=-0dccf40810e61c34 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c09048c77d6dd0d8.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0431a71a56ef9e12.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6572fa6bb87326c0.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d1af5c7ae8cb6039eec777f7a5c69f7aedcca20917393c0b61cf4533ca45ba3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1af5c7ae8cb6039eec777f7a5c69f7aedcca20917393c0b61cf4533ca45ba3f", kill_on_drop: false }`
[INFO] [stdout] d1af5c7ae8cb6039eec777f7a5c69f7aedcca20917393c0b61cf4533ca45ba3f
