[INFO] fetching crate mailboar_frontend 0.4.4...
[INFO] testing mailboar_frontend-0.4.4 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate mailboar_frontend 0.4.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate mailboar_frontend 0.4.4
[INFO] finished tweaking crates.io crate mailboar_frontend 0.4.4
[INFO] tweaked toml for crates.io crate mailboar_frontend 0.4.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mailboar_frontend 0.4.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 223 packages to latest compatible versions
[INFO] [stderr]       Adding askama v0.12.1 (available: v0.14.0)
[INFO] [stderr]       Adding axum v0.7.9 (available: v0.8.6)
[INFO] [stderr]       Adding tower v0.4.13 (available: v0.5.2)
[INFO] [stderr]       Adding tower-http v0.5.2 (available: v0.6.6)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded nu-ansi-term v0.50.3
[INFO] [stderr]   Downloaded mailparse v0.15.0
[INFO] [stderr]   Downloaded charset v0.1.5
[INFO] [stderr]   Downloaded http-range-header v0.4.2
[INFO] [stderr]   Downloaded mailboar_backend v0.4.4
[INFO] [stderr]   Downloaded askama_parser v0.2.1
[INFO] [stderr]   Downloaded askama_derive v0.12.5
[INFO] [stderr]   Downloaded basic-toml v0.1.10
[INFO] [stderr]   Downloaded chumsky v0.9.3
[INFO] [stderr]   Downloaded hostname v0.4.1
[INFO] [stderr]   Downloaded tower-http v0.5.2
[INFO] [stderr]   Downloaded askama_escape v0.10.3
[INFO] [stderr]   Downloaded lettre v0.11.19
[INFO] [stderr]   Downloaded psm v0.1.27
[INFO] [stderr]   Downloaded stacker v0.1.22
[INFO] [stderr]   Downloaded nom v8.0.0
[INFO] [stderr]   Downloaded email-encoding v0.4.1
[INFO] [stderr]   Downloaded email_address v0.2.9
[INFO] [stderr]   Downloaded humansize v2.1.3
[INFO] [stderr]   Downloaded askama v0.12.1
[INFO] [stderr]   Downloaded quoted_printable v0.5.1
[INFO] [stderr]   Downloaded mail-parser v0.9.4
[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] a4696e3d8036f1e1a569031f77dbbd6a1cc9a75d01a8e0d60e97703b6d7d6de5
[INFO] running `Command { std: "docker" "start" "-a" "a4696e3d8036f1e1a569031f77dbbd6a1cc9a75d01a8e0d60e97703b6d7d6de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4696e3d8036f1e1a569031f77dbbd6a1cc9a75d01a8e0d60e97703b6d7d6de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4696e3d8036f1e1a569031f77dbbd6a1cc9a75d01a8e0d60e97703b6d7d6de5", kill_on_drop: false }`
[INFO] [stdout] a4696e3d8036f1e1a569031f77dbbd6a1cc9a75d01a8e0d60e97703b6d7d6de5
[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] d4fa695f954641474b4d19d2cab7959564aa0d56476d6fd114519de0c31aab66
[INFO] running `Command { std: "docker" "start" "-a" "d4fa695f954641474b4d19d2cab7959564aa0d56476d6fd114519de0c31aab66", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]    Compiling writeable v0.6.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling utf8_iter v1.0.4
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling quoted_printable v0.5.1
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling charset v0.1.5
[INFO] [stderr]    Compiling hostname v0.4.1
[INFO] [stderr]    Compiling email-encoding v0.4.1
[INFO] [stderr]    Compiling nom v8.0.0
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling matchit v0.7.3
[INFO] [stderr]    Compiling askama_parser v0.2.1
[INFO] [stderr]    Compiling http-range-header v0.4.2
[INFO] [stderr]    Compiling mail-parser v0.9.4
[INFO] [stderr]    Compiling mailparse v0.15.0
[INFO] [stderr]    Compiling humansize v2.1.3
[INFO] [stderr]    Compiling askama_escape v0.10.3
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling psm v0.1.27
[INFO] [stderr]    Compiling stacker v0.1.22
[INFO] [stderr]    Compiling chumsky v0.9.3
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling matchers v0.2.0
[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=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.106/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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --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=11c592613589499a -C extra-filename=-4be477e56b17cfde --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-34e702fd02dced94.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-593ccbf2f3ba340e.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b9eb416f8b7c0727.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" "d4fa695f954641474b4d19d2cab7959564aa0d56476d6fd114519de0c31aab66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4fa695f954641474b4d19d2cab7959564aa0d56476d6fd114519de0c31aab66", kill_on_drop: false }`
[INFO] [stdout] d4fa695f954641474b4d19d2cab7959564aa0d56476d6fd114519de0c31aab66