[INFO] fetching crate matrix-qrcode 0.3.0...
[INFO] building matrix-qrcode-0.3.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate matrix-qrcode 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate matrix-qrcode 0.3.0
[INFO] finished tweaking crates.io crate matrix-qrcode 0.3.0
[INFO] tweaked toml for crates.io crate matrix-qrcode 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matrix-qrcode 0.3.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 157 packages to latest compatible versions
[INFO] [stderr]       Adding matrix-sdk-qrcode v0.3.0 (available: v0.14.0)
[INFO] [stderr]       Adding zeroize v1.3.0 (available: v1.8.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98d4adab1c0910f78bb31fb79448c79c940fe605790216efbd73900931c88ddc
[INFO] running `Command { std: "docker" "start" "-a" "98d4adab1c0910f78bb31fb79448c79c940fe605790216efbd73900931c88ddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98d4adab1c0910f78bb31fb79448c79c940fe605790216efbd73900931c88ddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98d4adab1c0910f78bb31fb79448c79c940fe605790216efbd73900931c88ddc", kill_on_drop: false }`
[INFO] [stdout] 98d4adab1c0910f78bb31fb79448c79c940fe605790216efbd73900931c88ddc
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b8d6133ca1eef3d1ae3849bc7c0ed4eb20c89cb557f80db78ef000e6da561b0
[INFO] running `Command { std: "docker" "start" "-a" "4b8d6133ca1eef3d1ae3849bc7c0ed4eb20c89cb557f80db78ef000e6da561b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-padding v0.3.3
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling cpufeatures v0.2.17
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling const-oid v0.7.1
[INFO] [stderr]    Compiling gif v0.11.4
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling der v0.5.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling indexmap v2.11.4
[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/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/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=ee894400a4fd9b27 -C extra-filename=-e2d2b41cfbe01974 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a28683de7e2d991e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-084ae52e87cd4d87.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b4c15d9166d0a657.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4b8d6133ca1eef3d1ae3849bc7c0ed4eb20c89cb557f80db78ef000e6da561b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8d6133ca1eef3d1ae3849bc7c0ed4eb20c89cb557f80db78ef000e6da561b0", kill_on_drop: false }`
[INFO] [stdout] 4b8d6133ca1eef3d1ae3849bc7c0ed4eb20c89cb557f80db78ef000e6da561b0