[INFO] cloning repository https://github.com/majiayu000/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/majiayu000/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmajiayu000%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmajiayu000%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 811d9535d12a175e225c20604c1da14ab9d5fda2
[INFO] checking majiayu000/rust against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmajiayu000%2Frust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/majiayu000/rust on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/majiayu000/rust
[INFO] finished tweaking git repo https://github.com/majiayu000/rust
[INFO] tweaked toml for git repo https://github.com/majiayu000/rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/majiayu000/rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b8773d5aa09d141ad1f68f6bb427c590af8b3bfb54f24d85e9f3af830626669
[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" "0b8773d5aa09d141ad1f68f6bb427c590af8b3bfb54f24d85e9f3af830626669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b8773d5aa09d141ad1f68f6bb427c590af8b3bfb54f24d85e9f3af830626669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b8773d5aa09d141ad1f68f6bb427c590af8b3bfb54f24d85e9f3af830626669", kill_on_drop: false }`
[INFO] [stdout] 0b8773d5aa09d141ad1f68f6bb427c590af8b3bfb54f24d85e9f3af830626669
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7be5bc48a2a45cccfbb2fb207387af71ce3d3920feb97b82414132b2cd363275
[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" "7be5bc48a2a45cccfbb2fb207387af71ce3d3920feb97b82414132b2cd363275", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling static_assertions v0.3.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bytecount v0.6.0
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking strfmt v0.1.6
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling webview-sys v0.1.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking web-view v0.4.5
[INFO] [stderr]     Checking rsass v0.11.2
[INFO] [stderr]    Compiling neutrino v0.3.1
[INFO] [stderr]     Checking tr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.56s
[INFO] running `Command { std: "docker" "inspect" "7be5bc48a2a45cccfbb2fb207387af71ce3d3920feb97b82414132b2cd363275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be5bc48a2a45cccfbb2fb207387af71ce3d3920feb97b82414132b2cd363275", kill_on_drop: false }`
[INFO] [stdout] 7be5bc48a2a45cccfbb2fb207387af71ce3d3920feb97b82414132b2cd363275