[INFO] fetching crate vmux 0.1.13...
[INFO] testing vmux-0.1.13 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate vmux 0.1.13 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate vmux 0.1.13
[INFO] finished tweaking crates.io crate vmux 0.1.13
[INFO] tweaked toml for crates.io crate vmux 0.1.13 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vmux 0.1.13 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 vmux 0.1.13 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-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 046d48c8f9ad15b35223ab6d27aaaaacc041d6096f8e0501dbdb6f9b2132a93d
[INFO] running `Command { std: "docker" "start" "-a" "046d48c8f9ad15b35223ab6d27aaaaacc041d6096f8e0501dbdb6f9b2132a93d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "046d48c8f9ad15b35223ab6d27aaaaacc041d6096f8e0501dbdb6f9b2132a93d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "046d48c8f9ad15b35223ab6d27aaaaacc041d6096f8e0501dbdb6f9b2132a93d", kill_on_drop: false }`
[INFO] [stdout] 046d48c8f9ad15b35223ab6d27aaaaacc041d6096f8e0501dbdb6f9b2132a93d
[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=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] 900b8cc342251c66902859f3cdff31f1fcc61eb273bc8186d8f83336d95cd8c1
[INFO] running `Command { std: "docker" "start" "-a" "900b8cc342251c66902859f3cdff31f1fcc61eb273bc8186d8f83336d95cd8c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling smallvec v1.12.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.3
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling rustix v0.38.30
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling anstyle-query v1.0.2
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling crossbeam-channel v0.5.11
[INFO] [stderr]    Compiling anstream v0.6.7
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling flume v0.11.0
[INFO] [stderr]    Compiling fdeflate v0.3.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling half v2.2.1
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.59
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling lebe v0.5.2
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling gif v0.12.0
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling png v0.17.11
[INFO] [stderr]    Compiling rmp v0.8.12
[INFO] [stderr]    Compiling clap_builder v4.4.17
[INFO] [stderr]    Compiling rust-embed-utils v7.8.1
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling nix v0.25.1
[INFO] [stderr]    Compiling errno v0.1.8
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling exr v1.71.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling boxfnonce v0.1.1
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling nvim-rs v0.4.0
[INFO] [stderr]    Compiling daemonize v0.4.1
[INFO] [stderr]    Compiling time v0.3.31
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling vte v0.11.1
[INFO] [stderr]    Compiling termion v2.0.3
[INFO] [stderr]    Compiling fuzzy-matcher v0.3.7
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling fd-lock v3.0.13
[INFO] [stderr]    Compiling tuikit v0.5.0
[INFO] [stderr]    Compiling pty v0.2.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling timer v0.2.0
[INFO] [stderr]    Compiling timeout-readwrite v0.3.3
[INFO] [stderr]    Compiling rmpv v1.0.1
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling defer-drop v1.3.0
[INFO] [stderr]    Compiling fern v0.6.2
[INFO] [stderr]    Compiling shlex v1.2.0
[INFO] [stderr]    Compiling tiff v0.9.1
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling whoami v1.4.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling mini-internal v0.1.36
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling rust-embed-impl v6.8.1
[INFO] [stderr]    Compiling rustyline v11.0.0
[INFO] [stderr]    Compiling tokio v1.35.1
[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=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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="quote"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=65f0d06efb00827e -C extra-filename=-fbd95e6f42160ce6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ce36fa2bfe911962.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-22f65dc3a1b54c7b.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-472188a549d5cedb.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `nix` (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 nix --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.25.1/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 -C debuginfo=2 --cfg 'feature="acct"' --cfg 'feature="aio"' --cfg 'feature="default"' --cfg 'feature="dir"' --cfg 'feature="env"' --cfg 'feature="event"' --cfg 'feature="feature"' --cfg 'feature="fs"' --cfg 'feature="hostname"' --cfg 'feature="inotify"' --cfg 'feature="ioctl"' --cfg 'feature="kmod"' --cfg 'feature="memoffset"' --cfg 'feature="mman"' --cfg 'feature="mount"' --cfg 'feature="mqueue"' --cfg 'feature="net"' --cfg 'feature="personality"' --cfg 'feature="pin-utils"' --cfg 'feature="poll"' --cfg 'feature="process"' --cfg 'feature="pthread"' --cfg 'feature="ptrace"' --cfg 'feature="quota"' --cfg 'feature="reboot"' --cfg 'feature="resource"' --cfg 'feature="sched"' --cfg 'feature="signal"' --cfg 'feature="socket"' --cfg 'feature="term"' --cfg 'feature="time"' --cfg 'feature="ucontext"' --cfg 'feature="uio"' --cfg 'feature="user"' --cfg 'feature="zerocopy"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("acct", "aio", "default", "dir", "env", "event", "feature", "fs", "hostname", "inotify", "ioctl", "kmod", "memoffset", "mman", "mount", "mqueue", "net", "personality", "pin-utils", "poll", "process", "pthread", "ptrace", "quota", "reboot", "resource", "sched", "signal", "socket", "term", "time", "ucontext", "uio", "user", "zerocopy"))' -C metadata=528424a47912879b -C extra-filename=-db36772203d57ff6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-a9851ebd0ab18f47.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-d9b80cb51cda7b5b.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-10c1d93a0c29e659.rmeta --extern memoffset=/opt/rustwide/target/debug/deps/libmemoffset-e7416d7bad89b3f7.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-e0a199353c6bf870.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "900b8cc342251c66902859f3cdff31f1fcc61eb273bc8186d8f83336d95cd8c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "900b8cc342251c66902859f3cdff31f1fcc61eb273bc8186d8f83336d95cd8c1", kill_on_drop: false }`
[INFO] [stdout] 900b8cc342251c66902859f3cdff31f1fcc61eb273bc8186d8f83336d95cd8c1
