[INFO] cloning repository https://github.com/barp/bswitcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/barp/bswitcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarp%2Fbswitcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarp%2Fbswitcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da2d1177a92a850f5add9f687cb520a4e4bbdd6b
[INFO] testing barp/bswitcher/da2d1177a92a850f5add9f687cb520a4e4bbdd6b against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarp%2Fbswitcher" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/barp/bswitcher
[INFO] finished tweaking git repo https://github.com/barp/bswitcher
[INFO] tweaked toml for git repo https://github.com/barp/bswitcher written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/barp/bswitcher on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/barp/bswitcher 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded errno v0.3.5
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.38
[INFO] [stderr]   Downloaded value-bag v1.4.2
[INFO] [stderr]   Downloaded exitfailure v0.5.1
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded derive-new v0.5.9
[INFO] [stderr]   Downloaded stderrlog v0.4.3
[INFO] [stderr]   Downloaded textwrap v0.16.0
[INFO] [stderr]   Downloaded quick-xml v0.22.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.95
[INFO] [stderr]   Downloaded rustix v0.38.21
[INFO] [stderr]   Downloaded wayland-client v0.27.0
[INFO] [stderr]   Downloaded polling v3.3.0
[INFO] [stderr]   Downloaded nix v0.18.0
[INFO] [stderr]   Downloaded rustix v0.37.27
[INFO] [stderr]   Downloaded tokio v1.33.0
[INFO] [stderr]   Downloaded web-sys v0.3.65
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.19.2
[INFO] [stderr]   Downloaded nom v3.2.1
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded wayland-protocols v0.27.0
[INFO] [stderr]   Downloaded xcb v0.10.1
[INFO] [stderr]   Downloaded pyo3-ffi v0.19.2
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.10
[INFO] [stderr]   Downloaded pyo3-asyncio v0.19.0
[INFO] [stderr]   Downloaded thread_local v0.3.4
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded parking_lot_core v0.7.3
[INFO] [stderr]   Downloaded tree_magic v0.2.3
[INFO] [stderr]   Downloaded wl-clipboard-rs v0.4.1
[INFO] [stderr]   Downloaded zip v0.5.13
[INFO] [stderr]   Downloaded wepoll-sys-stjepang v1.0.8
[INFO] [stderr]   Downloaded indoc v1.0.9
[INFO] [stderr]   Downloaded pyo3-asyncio-macros v0.19.0
[INFO] [stderr]   Downloaded pyo3-build-config v0.14.5
[INFO] [stderr]   Downloaded serde_derive v1.0.190
[INFO] [stderr]   Downloaded term_size v0.3.2
[INFO] [stderr]   Downloaded memchr v1.0.2
[INFO] [stderr]   Downloaded serde v1.0.190
[INFO] [stderr]   Downloaded parking_lot v0.10.2
[INFO] [stderr]   Downloaded wayland-sys v0.27.0
[INFO] [stderr]   Downloaded async-io v0.1.11
[INFO] [stderr]   Downloaded futures-lite v0.1.11
[INFO] [stderr]   Downloaded des v0.8.1
[INFO] [stderr]   Downloaded async-executor v1.6.0
[INFO] [stderr]   Downloaded async-signal v0.2.5
[INFO] [stderr]   Downloaded async-lock v2.8.0
[INFO] [stderr]   Downloaded piper v0.2.1
[INFO] [stderr]   Downloaded blocking v1.4.1
[INFO] [stderr]   Downloaded smallvec v1.11.1
[INFO] [stderr]   Downloaded pyo3-build-config v0.19.2
[INFO] [stderr]   Downloaded unindent v0.1.11
[INFO] [stderr]   Downloaded syn v2.0.38
[INFO] [stderr]   Downloaded pyo3 v0.19.2
[INFO] [stderr]   Downloaded redox_termios v0.1.3
[INFO] [stderr]   Downloaded openssl v0.10.59
[INFO] [stderr]   Downloaded wayland-commons v0.27.0
[INFO] [stderr]   Downloaded wayland-scanner v0.27.0
[INFO] [stderr]   Downloaded cli-clipboard v0.2.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.50
[INFO] [stderr]   Downloaded thiserror v1.0.50
[INFO] [stderr]   Downloaded cache-padded v1.3.0
[INFO] [stderr]   Downloaded polling v0.1.9
[INFO] [stderr]   Downloaded vec-arena v0.5.2
[INFO] [stderr]   Downloaded blocking v0.5.2
[INFO] [stderr]   Downloaded async-task v4.5.0
[INFO] [stderr]   Downloaded concurrent-queue v2.3.0
[INFO] [stderr]   Downloaded event-listener v3.0.1
[INFO] [stderr]   Downloaded termcolor v1.3.0
[INFO] [stderr]   Downloaded async-process v1.8.1
[INFO] [stderr]   Downloaded waker-fn v1.1.1
[INFO] [stderr]   Downloaded target-lexicon v0.12.12
[INFO] [stderr]   Downloaded termion v1.5.6
[INFO] [stderr]   Downloaded x11-clipboard v0.5.3
[INFO] [stderr]   Downloaded async-net v0.1.2
[INFO] [stderr]   Downloaded async-io v2.1.0
[INFO] [stderr]   Downloaded pyo3-macros v0.19.2
[INFO] [stderr]   Downloaded reqwest v0.11.22
[INFO] [stderr]   Downloaded openssl-src v300.1.6+3.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0de4ab2e5c380a58bb9906316ee401ec8c5e679c65db500cf0e3e7339be15fd
[INFO] running `Command { std: "docker" "start" "-a" "e0de4ab2e5c380a58bb9906316ee401ec8c5e679c65db500cf0e3e7339be15fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0de4ab2e5c380a58bb9906316ee401ec8c5e679c65db500cf0e3e7339be15fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0de4ab2e5c380a58bb9906316ee401ec8c5e679c65db500cf0e3e7339be15fd", kill_on_drop: false }`
[INFO] [stdout] e0de4ab2e5c380a58bb9906316ee401ec8c5e679c65db500cf0e3e7339be15fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3cd44a518130935342b6f1395c94b0fb033c526ab686e482b9f93a8cf2bdee3
[INFO] running `Command { std: "docker" "start" "-a" "c3cd44a518130935342b6f1395c94b0fb033c526ab686e482b9f93a8cf2bdee3", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling value-bag v1.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling waker-fn v1.1.1
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling target-lexicon v0.12.12
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling concurrent-queue v2.3.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling block-padding v0.3.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling async-task v4.5.0
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling pyo3-build-config v0.19.2
[INFO] [stderr]    Compiling piper v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling gimli v0.28.0
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling futures-lite v0.1.11
[INFO] [stderr]    Compiling async-executor v1.6.0
[INFO] [stderr]    Compiling blocking v1.4.1
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling event-listener v3.0.1
[INFO] [stderr]    Compiling object v0.32.1
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v0.8.9
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling openssl-src v300.1.6+3.1.4
[INFO] [stderr]    Compiling tokio v1.33.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling cache-padded v1.3.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.4
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling wayland-client v0.27.0
[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/d98a5da813da67eb189387b8ccfb73cf481275d8/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"' --cfg 'feature="visit"' --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=1a6ca52b68a23087 -C extra-filename=-dbc7609eb31347ca --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9daf3133123a3af1.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-cc16f4ac8e4448f3.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-e192ee94db305c87.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c3cd44a518130935342b6f1395c94b0fb033c526ab686e482b9f93a8cf2bdee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3cd44a518130935342b6f1395c94b0fb033c526ab686e482b9f93a8cf2bdee3", kill_on_drop: false }`
[INFO] [stdout] c3cd44a518130935342b6f1395c94b0fb033c526ab686e482b9f93a8cf2bdee3