[INFO] cloning repository https://github.com/rust-lang/rust-central-station
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang/rust-central-station" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang%2Frust-central-station", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang%2Frust-central-station'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2cba67189ffce196991d26f43ab5d9349796869
[INFO] checking rust-lang/rust-central-station against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang%2Frust-central-station" "/workspace/builds/worker-86/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-lang/rust-central-station on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rust-lang/rust-central-station
[INFO] finished tweaking git repo https://github.com/rust-lang/rust-central-station
[INFO] tweaked toml for git repo https://github.com/rust-lang/rust-central-station written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-lang/rust-central-station already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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 error-chain v0.5.0
[INFO] [stderr]   Downloaded tokio-curl v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 203a9649fa421cd467a74f322b23c3606381766a867fc76652a9faace5e615f7
[INFO] running `Command { std: "docker" "start" "-a" "203a9649fa421cd467a74f322b23c3606381766a867fc76652a9faace5e615f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "203a9649fa421cd467a74f322b23c3606381766a867fc76652a9faace5e615f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "203a9649fa421cd467a74f322b23c3606381766a867fc76652a9faace5e615f7", kill_on_drop: false }`
[INFO] [stdout] 203a9649fa421cd467a74f322b23c3606381766a867fc76652a9faace5e615f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6357d81f2da0c246ef3413afe2cfd4345f54e731b7ba83c04464a676481743d
[INFO] running `Command { std: "docker" "start" "-a" "b6357d81f2da0c246ef3413afe2cfd4345f54e731b7ba83c04464a676481743d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.51
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling lzma-sys v0.1.17
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.117/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=e7f3a76076517f82 -C extra-filename=-e7f3a76076517f82 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg core_try_from --cfg num_nonzero_signed --cfg std_atomic64 --cfg std_atomic` (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" "b6357d81f2da0c246ef3413afe2cfd4345f54e731b7ba83c04464a676481743d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6357d81f2da0c246ef3413afe2cfd4345f54e731b7ba83c04464a676481743d", kill_on_drop: false }`
[INFO] [stdout] b6357d81f2da0c246ef3413afe2cfd4345f54e731b7ba83c04464a676481743d