[INFO] fetching crate snowchains_core 0.13.0...
[INFO] checking snowchains_core-0.13.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate snowchains_core 0.13.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate snowchains_core 0.13.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate snowchains_core 0.13.0
[INFO] finished tweaking crates.io crate snowchains_core 0.13.0
[INFO] tweaked toml for crates.io crate snowchains_core 0.13.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate snowchains_core 0.13.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.63
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[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.3
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[INFO] [stderr]   Downloaded output_vt100 v0.1.2
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[INFO] [stderr]   Downloaded crossbeam-utils v0.8.3
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[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.71
[INFO] [stderr]   Downloaded ipnet v2.3.0
[INFO] [stderr]   Downloaded rpassword v5.0.1
[INFO] [stderr]   Downloaded markup5ever v0.10.0
[INFO] [stderr]   Downloaded strum_macros v0.20.1
[INFO] [stderr]   Downloaded redox_syscall v0.2.5
[INFO] [stderr]   Downloaded mio v0.7.9
[INFO] [stderr]   Downloaded unicode-normalization v0.1.17
[INFO] [stderr]   Downloaded idna v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 767e2da57572d84470a6c0bd7616974812bd70471ec8796f909dd1bc5c0b60d8
[INFO] running `Command { std: "docker" "start" "-a" "767e2da57572d84470a6c0bd7616974812bd70471ec8796f909dd1bc5c0b60d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "767e2da57572d84470a6c0bd7616974812bd70471ec8796f909dd1bc5c0b60d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767e2da57572d84470a6c0bd7616974812bd70471ec8796f909dd1bc5c0b60d8", kill_on_drop: false }`
[INFO] [stdout] 767e2da57572d84470a6c0bd7616974812bd70471ec8796f909dd1bc5c0b60d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfda43fb81f9a2deae82b6492beec813580502f564b9f9d380e13a4d52f63327
[INFO] running `Command { std: "docker" "start" "-a" "bfda43fb81f9a2deae82b6492beec813580502f564b9f9d380e13a4d52f63327", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.124
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[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling getrandom v0.1.16
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[INFO] [stderr]     Checking byteorder v1.4.3
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[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
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[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking remove_dir_all v0.5.3
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[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking diff v0.1.12
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[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking dtoa-short v0.3.3
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[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking tinyvec v1.1.1
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[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking getopts v0.2.21
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[INFO] [stderr]     Checking servo_arc v0.1.1
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[INFO] [stderr]    Compiling quote v1.0.9
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[INFO] [stderr]     Checking fwdansi v1.1.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking pretty_assertions v0.7.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling standback v0.2.15
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
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[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking want v0.3.0
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[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]     Checking rpassword v5.0.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking clap v2.33.3
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[INFO] [stderr]    Compiling rand_core v0.5.1
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[INFO] [stderr]     Checking rand_core v0.6.2
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[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
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[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[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 rustls v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking tokio-util v0.6.4
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling easy-ext v0.2.6
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr] error: could not compile `derivative`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name derivative /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/derivative-2.2.0/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 -C metadata=6fe3a7f2707681f5 -C extra-filename=-6fe3a7f2707681f5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1a6a39c3cd9b115f.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-1be2cecfcfd4ab86.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-e7b4aeb6aa35bd56.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (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" "bfda43fb81f9a2deae82b6492beec813580502f564b9f9d380e13a4d52f63327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfda43fb81f9a2deae82b6492beec813580502f564b9f9d380e13a4d52f63327", kill_on_drop: false }`
[INFO] [stdout] bfda43fb81f9a2deae82b6492beec813580502f564b9f9d380e13a4d52f63327