[INFO] fetching crate rusb 0.9.1...
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] crate rusb 0.9.1 is already in cache
[INFO] checking rusb-0.9.1 against master#21de280cccb4eb02ead6bf0af40e2355a9136d6f for pr-100043
[INFO] extracting crate rusb 0.9.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rusb 0.9.1 on toolchain 21de280cccb4eb02ead6bf0af40e2355a9136d6f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusb 0.9.1
[INFO] finished tweaking crates.io crate rusb 0.9.1
[INFO] tweaked toml for crates.io crate rusb 0.9.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rusb 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libusb1-sys v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a7e81a306d9f4bb7be08171a428a4d95cc7a270ab418511db2720f005bfa6d78
[INFO] running `Command { std: "docker" "start" "-a" "a7e81a306d9f4bb7be08171a428a4d95cc7a270ab418511db2720f005bfa6d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7e81a306d9f4bb7be08171a428a4d95cc7a270ab418511db2720f005bfa6d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e81a306d9f4bb7be08171a428a4d95cc7a270ab418511db2720f005bfa6d78", kill_on_drop: false }`
[INFO] [stdout] a7e81a306d9f4bb7be08171a428a4d95cc7a270ab418511db2720f005bfa6d78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 494c23f2254f21dcf333994f92d25a7488c8843309d39ad5947c4691a3e6b53a
[INFO] running `Command { std: "docker" "start" "-a" "494c23f2254f21dcf333994f92d25a7488c8843309d39ad5947c4691a3e6b53a", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling rusb v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling libusb1-sys v0.6.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.51s
[INFO] running `Command { std: "docker" "inspect" "494c23f2254f21dcf333994f92d25a7488c8843309d39ad5947c4691a3e6b53a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "494c23f2254f21dcf333994f92d25a7488c8843309d39ad5947c4691a3e6b53a", kill_on_drop: false }`
[INFO] [stdout] 494c23f2254f21dcf333994f92d25a7488c8843309d39ad5947c4691a3e6b53a