[INFO] cloning repository https://github.com/let4be/crusty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/let4be/crusty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flet4be%2Fcrusty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flet4be%2Fcrusty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b128bd4a8020272df17696b05a4df259288eda50
[INFO] checking let4be/crusty against try#29194e8f603400afdb2f86c9418e9fccb1628ea0 for pr-135331-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flet4be%2Fcrusty" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/let4be/crusty
[INFO] finished tweaking git repo https://github.com/let4be/crusty
[INFO] tweaked toml for git repo https://github.com/let4be/crusty written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/let4be/crusty on toolchain 29194e8f603400afdb2f86c9418e9fccb1628ea0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/let4be/crusty 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" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e84f20ba53d0708bcded9a2c9d4cbcd033043276f141952d76f4fc29bf7d041
[INFO] running `Command { std: "docker" "start" "-a" "0e84f20ba53d0708bcded9a2c9d4cbcd033043276f141952d76f4fc29bf7d041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e84f20ba53d0708bcded9a2c9d4cbcd033043276f141952d76f4fc29bf7d041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e84f20ba53d0708bcded9a2c9d4cbcd033043276f141952d76f4fc29bf7d041", kill_on_drop: false }`
[INFO] [stdout] 0e84f20ba53d0708bcded9a2c9d4cbcd033043276f141952d76f4fc29bf7d041
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c342a4aceeac3b1f9e476da1aad9b4ce48c492a9b911f1fbef1e6cfcae33c692
[INFO] running `Command { std: "docker" "start" "-a" "c342a4aceeac3b1f9e476da1aad9b4ce48c492a9b911f1fbef1e6cfcae33c692", 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 v0.2.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling anyhow v1.0.45
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.71
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling libloading v0.7.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.59.1
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking http v0.2.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling libgit2-sys v0.12.25+1.3.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling httparse v1.5.1
[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/29194e8f603400afdb2f86c9418e9fccb1628ea0/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.81/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 debug-assertions=off -C overflow-checks=on --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="quote"' --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", "quote", "test", "visit", "visit-mut"))' -C metadata=91049a6ac335c4d7 -C extra-filename=-d87be933f5b510d1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f3c34a48b75811fe.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5ea56d2b706cc168.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-572dc29b68e74708.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" "c342a4aceeac3b1f9e476da1aad9b4ce48c492a9b911f1fbef1e6cfcae33c692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c342a4aceeac3b1f9e476da1aad9b4ce48c492a9b911f1fbef1e6cfcae33c692", kill_on_drop: false }`
[INFO] [stdout] c342a4aceeac3b1f9e476da1aad9b4ce48c492a9b911f1fbef1e6cfcae33c692