[INFO] fetching crate rand 0.8.3...
[INFO] checking rand-0.8.3 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate rand 0.8.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rand 0.8.3 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rand 0.8.3
[INFO] finished tweaking crates.io crate rand 0.8.3
[INFO] tweaked toml for crates.io crate rand 0.8.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate rand 0.8.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.120
[INFO] [stderr]   Downloaded syn v1.0.59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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] 69d104ca149339ab203c5153f1c590d8ae7a0a727434457b8e1deb00e67c4518
[INFO] running `Command { std: "docker" "start" "-a" "69d104ca149339ab203c5153f1c590d8ae7a0a727434457b8e1deb00e67c4518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69d104ca149339ab203c5153f1c590d8ae7a0a727434457b8e1deb00e67c4518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69d104ca149339ab203c5153f1c590d8ae7a0a727434457b8e1deb00e67c4518", kill_on_drop: false }`
[INFO] [stdout] 69d104ca149339ab203c5153f1c590d8ae7a0a727434457b8e1deb00e67c4518
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4600c15a29d1cea05a572aa87051d414b67ca781e503c2ee3800b672c87969a8
[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" "4600c15a29d1cea05a572aa87051d414b67ca781e503c2ee3800b672c87969a8", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand_pcg v0.3.0
[INFO] [stderr]     Checking rand_hc v0.3.0
[INFO] [stderr]     Checking rand v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.07s
[INFO] running `Command { std: "docker" "inspect" "4600c15a29d1cea05a572aa87051d414b67ca781e503c2ee3800b672c87969a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4600c15a29d1cea05a572aa87051d414b67ca781e503c2ee3800b672c87969a8", kill_on_drop: false }`
[INFO] [stdout] 4600c15a29d1cea05a572aa87051d414b67ca781e503c2ee3800b672c87969a8