[INFO] fetching crate mwc 5.3.9...
[INFO] checking mwc-5.3.9 against e3607d549209cc9fdfe7e907123b4185210e2c2b for pr-158915
[INFO] extracting crate mwc 5.3.9 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate mwc 5.3.9
[INFO] finished tweaking crates.io crate mwc 5.3.9
[INFO] tweaked toml for crates.io crate mwc 5.3.9 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mwc 5.3.9 on toolchain e3607d549209cc9fdfe7e907123b4185210e2c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mwc 5.3.9 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" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `mwc` (manifest) generated 1 warning
[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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b
[INFO] running `Command { std: "docker" "start" "4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `mwc` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]     Checking destructure_traitobject v0.2.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking unsafe-any-ors v1.0.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]     Checking typemap-ors v1.0.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking anyhow v1.0.98
[INFO] [stderr]     Checking object v0.36.7
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking event-listener v5.4.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking base64ct v1.8.0
[INFO] [stderr]     Checking indexmap v2.10.0
[INFO] [stderr]     Checking rustc-demangle v0.1.25
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking data-encoding v2.9.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking lru v0.12.5
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking async-lock v3.4.0
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling rustls v0.20.9
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]     Checking blocking v1.6.2
[INFO] [stderr]     Checking async-executor v1.13.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling cc v1.2.29
[INFO] [stderr]    Compiling value-bag v1.11.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]    Compiling sysinfo v0.9.6
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling cursive-macros v0.1.0
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking thread-id v4.2.2
[INFO] [stderr]     Checking password-hash v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking socks v0.3.4
[INFO] [stderr]     Checking castaway v0.2.4
[INFO] [stderr]     Checking pbkdf2 v0.8.0
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking tor-stream v0.2.0
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking time v0.3.41
[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/e3607d549209cc9fdfe7e907123b4185210e2c2b/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.104/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --crate-type lib --emit=dep-info,metadata,link -Z embed-metadata=no -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=de973827722597b6 -C extra-filename=-7ae43d5fbe1eb75d --out-dir /opt/rustwide/target/debug/build/syn/7ae43d5fbe1eb75d/out -L dependency=/opt/rustwide/target/debug/build/proc-macro2/d8665169c487d19b/out -L dependency=/opt/rustwide/target/debug/build/unicode-ident/b3925cc8f83e9ac1/out --extern proc_macro2=/opt/rustwide/target/debug/build/proc-macro2/d8665169c487d19b/out/libproc_macro2-d8665169c487d19b.rmeta --extern quote=/opt/rustwide/target/debug/build/quote/60c6fa93c90874f2/out/libquote-60c6fa93c90874f2.rmeta --extern unicode_ident=/opt/rustwide/target/debug/build/unicode-ident/b3925cc8f83e9ac1/out/libunicode_ident-b3925cc8f83e9ac1.rmeta --cap-lints allow --cap-lints=forbid --force-warn=unused_crate_dependencies` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b", kill_on_drop: false }`
[INFO] [stdout] 4d011447d82bf288f21dd80969e24b0f1e7e2e43d11ae42fd3a1fb759f3fee3b
