[INFO] fetching crate ipfs-embed-db 0.10.0...
[INFO] checking ipfs-embed-db-0.10.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate ipfs-embed-db 0.10.0 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate ipfs-embed-db 0.10.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipfs-embed-db 0.10.0
[INFO] finished tweaking crates.io crate ipfs-embed-db 0.10.0
[INFO] tweaked toml for crates.io crate ipfs-embed-db 0.10.0 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] crate crates.io crate ipfs-embed-db 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d86edd392c38da55e45ad2634c75a39546c58ae14279586b5a44fe3bc266c76
[INFO] running `Command { std: "docker" "start" "-a" "9d86edd392c38da55e45ad2634c75a39546c58ae14279586b5a44fe3bc266c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d86edd392c38da55e45ad2634c75a39546c58ae14279586b5a44fe3bc266c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d86edd392c38da55e45ad2634c75a39546c58ae14279586b5a44fe3bc266c76", kill_on_drop: false }`
[INFO] [stdout] 9d86edd392c38da55e45ad2634c75a39546c58ae14279586b5a44fe3bc266c76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34f9ca8378a55ee576cb71b59f744107464ce9fa81372fa10d888a72c198919a
[INFO] running `Command { std: "docker" "start" "-a" "34f9ca8378a55ee576cb71b59f744107464ce9fa81372fa10d888a72c198919a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking pin-project-lite v0.2.1
[INFO] [stderr]     Checking futures-core v0.3.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-io v0.3.9
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-sink v0.3.9
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking data-encoding v2.3.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]     Checking base-x v0.2.8
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking tinyvec v1.1.0
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr] error: could not compile `proc-macro2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="proc-macro"' --cfg 'feature="span-locations"' -C metadata=e5b9be652f533510 -C extra-filename=-e5b9be652f533510 --out-dir /opt/rustwide/target/debug/build/proc-macro2-e5b9be652f533510 -L dependency=/opt/rustwide/target/debug/deps --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" "34f9ca8378a55ee576cb71b59f744107464ce9fa81372fa10d888a72c198919a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34f9ca8378a55ee576cb71b59f744107464ce9fa81372fa10d888a72c198919a", kill_on_drop: false }`
[INFO] [stdout] 34f9ca8378a55ee576cb71b59f744107464ce9fa81372fa10d888a72c198919a