[INFO] fetching crate otter-api-tests 0.7.3...
[INFO] checking otter-api-tests-0.7.3 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate otter-api-tests 0.7.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate otter-api-tests 0.7.3 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate otter-api-tests 0.7.3
[INFO] finished tweaking crates.io crate otter-api-tests 0.7.3
[INFO] tweaked toml for crates.io crate otter-api-tests 0.7.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate otter-api-tests 0.7.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 85d34acd4a2219f652f49cd0c167ae6023448da61f6fdac916a9743851567943
[INFO] running `Command { std: "docker" "start" "-a" "85d34acd4a2219f652f49cd0c167ae6023448da61f6fdac916a9743851567943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85d34acd4a2219f652f49cd0c167ae6023448da61f6fdac916a9743851567943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85d34acd4a2219f652f49cd0c167ae6023448da61f6fdac916a9743851567943", kill_on_drop: false }`
[INFO] [stdout] 85d34acd4a2219f652f49cd0c167ae6023448da61f6fdac916a9743851567943
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d403419ba6ef0c6836c95ae52448b35f53b29ed880f38404f54d33304d1e0cb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5d403419ba6ef0c6836c95ae52448b35f53b29ed880f38404f54d33304d1e0cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking if_chain v1.0.1
[INFO] [stderr]     Checking humansize v1.1.1
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking lazy-init v0.5.0
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling slotmap-fork-otter v1.0.2
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking uds v0.2.6
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking vecdeque-stableix v1.0.0
[INFO] [stderr]     Checking ordered-float v2.7.0
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling derive-into-owned v0.1.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling enum-map-derive v0.6.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling extend v1.1.1
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling enum_dispatch v0.3.7
[INFO] [stderr]    Compiling delegate v0.6.1
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.126/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=e6280ddefb946078 -C extra-filename=-e6280ddefb946078 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-72dd94e62781faf3.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-754b571958ad5368.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-0b168235e0270c8c.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid --cfg underscore_consts` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5d403419ba6ef0c6836c95ae52448b35f53b29ed880f38404f54d33304d1e0cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d403419ba6ef0c6836c95ae52448b35f53b29ed880f38404f54d33304d1e0cb", kill_on_drop: false }`
[INFO] [stdout] 5d403419ba6ef0c6836c95ae52448b35f53b29ed880f38404f54d33304d1e0cb