[INFO] cloning repository https://github.com/LittleGuest/hairy-crabs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LittleGuest/hairy-crabs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleGuest%2Fhairy-crabs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleGuest%2Fhairy-crabs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53652468f337d0d35b7cc5fb33ef8e50ee6ea5d4
[INFO] checking LittleGuest/hairy-crabs against try#f82303294ca6add47eea966608ce02688928f965 for pr-107123-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleGuest%2Fhairy-crabs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LittleGuest/hairy-crabs on toolchain f82303294ca6add47eea966608ce02688928f965
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f82303294ca6add47eea966608ce02688928f965" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LittleGuest/hairy-crabs
[INFO] finished tweaking git repo https://github.com/LittleGuest/hairy-crabs
[INFO] tweaked toml for git repo https://github.com/LittleGuest/hairy-crabs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LittleGuest/hairy-crabs 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" "+f82303294ca6add47eea966608ce02688928f965" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
[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] 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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+f82303294ca6add47eea966608ce02688928f965" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0bcfe9a6295fb20cc1d5187e1d95cec6cd7f8a340e63df3a64c28c5cd4e4b87
[INFO] running `Command { std: "docker" "start" "-a" "f0bcfe9a6295fb20cc1d5187e1d95cec6cd7f8a340e63df3a64c28c5cd4e4b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0bcfe9a6295fb20cc1d5187e1d95cec6cd7f8a340e63df3a64c28c5cd4e4b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0bcfe9a6295fb20cc1d5187e1d95cec6cd7f8a340e63df3a64c28c5cd4e4b87", kill_on_drop: false }`
[INFO] [stdout] f0bcfe9a6295fb20cc1d5187e1d95cec6cd7f8a340e63df3a64c28c5cd4e4b87
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+f82303294ca6add47eea966608ce02688928f965" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a64873d2b204ac0de261b7252cf722f9e2a3a4c8562155a0621aaae898f7515b
[INFO] running `Command { std: "docker" "start" "-a" "a64873d2b204ac0de261b7252cf722f9e2a3a4c8562155a0621aaae898f7515b", kill_on_drop: false }`
[INFO] [stderr] warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
[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]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking base64ct v1.5.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking const-oid v0.7.1
[INFO] [stderr]     Checking pem-rfc7468 v0.3.1
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling crossbeam-queue v0.3.5
[INFO] [stderr]     Checking zeroize v1.5.5
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking crypto-bigint v0.3.2
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-bigint-dig v0.8.1
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking der v0.5.1
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling rust_decimal v1.23.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.24.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]     Checking futures-intrusive v0.4.0
[INFO] [stderr]     Checking spki v0.5.4
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking sha2 v0.10.2
[INFO] [stderr]     Checking hashlink v0.7.0
[INFO] [stderr]     Checking atoi v0.4.0
[INFO] [stderr]     Checking pkcs8 v0.8.0
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking pkcs1 v0.3.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking rsa v0.6.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking combine v4.6.3
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking pem v1.0.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking headers v0.3.7
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clang-sys v1.3.1
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling validator_types v0.14.0
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling chrono-tz-build v0.0.2
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking flate2 v1.0.23
[INFO] [stderr]     Checking unic-ucd-segment v0.9.0
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking crab-util v0.1.0 (/opt/rustwide/workdir/crab-util)
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking unic-segment v0.9.0
[INFO] [stderr]    Compiling chrono-tz v0.6.1
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking humansize v1.1.1
[INFO] [stderr]    Compiling cexpr v0.4.0
[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/f82303294ca6add47eea966608ce02688928f965/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.91/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"' --cfg 'feature="visit-mut"' -C metadata=8c1f2f518c4d4a77 -C extra-filename=-8c1f2f518c4d4a77 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-60a8528a426f78d6.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9fec6ef3021e0d5d.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-afc683de4ca1a6db.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" "a64873d2b204ac0de261b7252cf722f9e2a3a4c8562155a0621aaae898f7515b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a64873d2b204ac0de261b7252cf722f9e2a3a4c8562155a0621aaae898f7515b", kill_on_drop: false }`
[INFO] [stdout] a64873d2b204ac0de261b7252cf722f9e2a3a4c8562155a0621aaae898f7515b