[INFO] cloning repository https://github.com/oashtari/question_and_answer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oashtari/question_and_answer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foashtari%2Fquestion_and_answer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foashtari%2Fquestion_and_answer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1addc85a15a2c1950fc0c9f88c862860e6162a5c
[INFO] testing oashtari/question_and_answer 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%2Foashtari%2Fquestion_and_answer" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  89% (2216/2468)
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Updating files: 100% (2468/2468), done.
[INFO] started tweaking git repo https://github.com/oashtari/question_and_answer
[INFO] finished tweaking git repo https://github.com/oashtari/question_and_answer
[INFO] tweaked toml for git repo https://github.com/oashtari/question_and_answer written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/oashtari/question_and_answer 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/oashtari/question_and_answer 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e23ab679a77f07c74b477001576c5838872bf5f3209458de5e299fe45a7edc01
[INFO] running `Command { std: "docker" "start" "-a" "e23ab679a77f07c74b477001576c5838872bf5f3209458de5e299fe45a7edc01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e23ab679a77f07c74b477001576c5838872bf5f3209458de5e299fe45a7edc01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23ab679a77f07c74b477001576c5838872bf5f3209458de5e299fe45a7edc01", kill_on_drop: false }`
[INFO] [stdout] e23ab679a77f07c74b477001576c5838872bf5f3209458de5e299fe45a7edc01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3b2e42bf9679a29598b92c8e264a523da0fff641830444739a097985f3d4906f
[INFO] running `Command { std: "docker" "start" "-a" "3b2e42bf9679a29598b92c8e264a523da0fff641830444739a097985f3d4906f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling pin-project-lite v0.2.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling serde v1.0.174
[INFO] [stderr]    Compiling serde_derive v1.0.174
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling base64 v0.21.2
[INFO] [stderr]    Compiling openssl-src v111.26.0+1.1.1u
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling rustls v0.21.5
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling allocator-api2 v0.2.16
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling url v2.4.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling rustls-pemfile v1.0.3
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling crc-catalog v2.2.0
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling crc v3.0.1
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling hashlink v0.8.3
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling hkdf v0.12.3
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling md-5 v0.10.5
[INFO] [stderr]    Compiling sha2 v0.10.7
[INFO] [stderr]    Compiling stringprep v0.1.3
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling whoami v1.4.1
[INFO] [stderr]    Compiling multer v2.1.0
[INFO] [stderr]    Compiling fastrand v2.0.0
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling rustls-webpki v0.101.1
[INFO] [stderr]    Compiling sct v0.7.0
[INFO] [stderr]    Compiling sqlformat v0.2.1
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling webpki-roots v0.24.0
[INFO] [stderr]    Compiling platforms v2.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling ipnet v2.8.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling gimli v0.27.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]    Compiling pest v2.7.2
[INFO] [stderr] error: could not compile `tokio` (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 tokio --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.29.1/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="bytes"' --cfg 'feature="default"' --cfg 'feature="fs"' --cfg 'feature="io-util"' --cfg 'feature="libc"' --cfg 'feature="mio"' --cfg 'feature="net"' --cfg 'feature="rt"' --cfg 'feature="socket2"' --cfg 'feature="sync"' --cfg 'feature="time"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("bytes", "default", "fs", "full", "io-std", "io-util", "libc", "macros", "mio", "net", "num_cpus", "parking_lot", "process", "rt", "rt-multi-thread", "signal", "signal-hook-registry", "socket2", "stats", "sync", "test-util", "time", "tokio-macros", "tracing", "windows-sys"))' -C metadata=0f9b424215179c18 -C extra-filename=-476558249e889f7f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-b1fe1166f01d9859.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-63928b9abf2e2373.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-5df9dff98d2e686b.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-9497439f0d03c4f6.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-dbba1bf1ad00c90b.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" "3b2e42bf9679a29598b92c8e264a523da0fff641830444739a097985f3d4906f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b2e42bf9679a29598b92c8e264a523da0fff641830444739a097985f3d4906f", kill_on_drop: false }`
[INFO] [stdout] 3b2e42bf9679a29598b92c8e264a523da0fff641830444739a097985f3d4906f
