[INFO] cloning repository https://github.com/hustxiaoc/learningrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hustxiaoc/learningrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhustxiaoc%2Flearningrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhustxiaoc%2Flearningrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c6691af2a79ab7126852529c3dd0009ac82a739
[INFO] checking hustxiaoc/learningrust against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhustxiaoc%2Flearningrust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hustxiaoc/learningrust 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 git repo https://github.com/hustxiaoc/learningrust
[INFO] finished tweaking git repo https://github.com/hustxiaoc/learningrust
[INFO] tweaked toml for git repo https://github.com/hustxiaoc/learningrust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 9b70ddbf0ef9e3fc4e1dd31facc500bfe6b0e60109ede8e30fa90f0f45d1ad87
[INFO] running `Command { std: "docker" "start" "-a" "9b70ddbf0ef9e3fc4e1dd31facc500bfe6b0e60109ede8e30fa90f0f45d1ad87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b70ddbf0ef9e3fc4e1dd31facc500bfe6b0e60109ede8e30fa90f0f45d1ad87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b70ddbf0ef9e3fc4e1dd31facc500bfe6b0e60109ede8e30fa90f0f45d1ad87", kill_on_drop: false }`
[INFO] [stdout] 9b70ddbf0ef9e3fc4e1dd31facc500bfe6b0e60109ede8e30fa90f0f45d1ad87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c36a2032b6d64c41598168d398e15d2ac392fb8c05d5516e6fd83033966bc8ed
[INFO] running `Command { std: "docker" "start" "-a" "c36a2032b6d64c41598168d398e15d2ac392fb8c05d5516e6fd83033966bc8ed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling http-types v2.11.1
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking infer v0.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking sql-builder v0.12.2
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking simple-mutex v1.1.5
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking async-dup v1.2.2
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]     Checking crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking byte-pool v0.2.3
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr] error: could not compile `http`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name http --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/http-0.2.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=f3f40c61d72d4e4c -C extra-filename=-f3f40c61d72d4e4c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-24f62b67f4100677.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-ec88d2d7b747099d.rmeta --extern itoa=/opt/rustwide/target/debug/deps/libitoa-6552c78ca311b6fd.rmeta --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" "c36a2032b6d64c41598168d398e15d2ac392fb8c05d5516e6fd83033966bc8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c36a2032b6d64c41598168d398e15d2ac392fb8c05d5516e6fd83033966bc8ed", kill_on_drop: false }`
[INFO] [stdout] c36a2032b6d64c41598168d398e15d2ac392fb8c05d5516e6fd83033966bc8ed