[INFO] crate cargo-prefetch 0.1.0 is already in cache
[INFO] checking cargo-prefetch-0.1.0 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] extracting crate cargo-prefetch 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cargo-prefetch 0.1.0 on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-prefetch 0.1.0
[INFO] finished tweaking crates.io crate cargo-prefetch 0.1.0
[INFO] tweaked toml for crates.io crate cargo-prefetch 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88bd346b3ad44f75f6dc4b6b83fde867af8b53dbb0e846ebdf1438430469d8f6
[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" "88bd346b3ad44f75f6dc4b6b83fde867af8b53dbb0e846ebdf1438430469d8f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88bd346b3ad44f75f6dc4b6b83fde867af8b53dbb0e846ebdf1438430469d8f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88bd346b3ad44f75f6dc4b6b83fde867af8b53dbb0e846ebdf1438430469d8f6", kill_on_drop: false }`
[INFO] [stdout] 88bd346b3ad44f75f6dc4b6b83fde867af8b53dbb0e846ebdf1438430469d8f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7be33b10783e6ccf2dd17079ef119fe5543126e9ec58371213052bfecc2fce65
[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" "7be33b10783e6ccf2dd17079ef119fe5543126e9ec58371213052bfecc2fce65", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking net2 v0.2.36
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking native-tls v0.2.6
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking serde v1.0.118
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking cargo-prefetch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.27s
[INFO] running `Command { std: "docker" "inspect" "7be33b10783e6ccf2dd17079ef119fe5543126e9ec58371213052bfecc2fce65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be33b10783e6ccf2dd17079ef119fe5543126e9ec58371213052bfecc2fce65", kill_on_drop: false }`
[INFO] [stdout] 7be33b10783e6ccf2dd17079ef119fe5543126e9ec58371213052bfecc2fce65