[INFO] fetching crate mpw 0.2.1...
[INFO] checking mpw-0.2.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate mpw 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mpw 0.2.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mpw 0.2.1
[INFO] finished tweaking crates.io crate mpw 0.2.1
[INFO] tweaked toml for crates.io crate mpw 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 382ad8f4280f75cfd84038b4447e2f28369b2c904e62cefec423be9feb9d1a57
[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" "382ad8f4280f75cfd84038b4447e2f28369b2c904e62cefec423be9feb9d1a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "382ad8f4280f75cfd84038b4447e2f28369b2c904e62cefec423be9feb9d1a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "382ad8f4280f75cfd84038b4447e2f28369b2c904e62cefec423be9feb9d1a57", kill_on_drop: false }`
[INFO] [stdout] 382ad8f4280f75cfd84038b4447e2f28369b2c904e62cefec423be9feb9d1a57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14a267c517d9e95a7d8231f75932dc0528db8576c9df0b886ea05077e88e9b5b
[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" "14a267c517d9e95a7d8231f75932dc0528db8576c9df0b886ea05077e88e9b5b", kill_on_drop: false }`
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking hmac v0.4.2
[INFO] [stderr]     Checking sha2 v0.6.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking mpw v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 21.82s
[INFO] running `Command { std: "docker" "inspect" "14a267c517d9e95a7d8231f75932dc0528db8576c9df0b886ea05077e88e9b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14a267c517d9e95a7d8231f75932dc0528db8576c9df0b886ea05077e88e9b5b", kill_on_drop: false }`
[INFO] [stdout] 14a267c517d9e95a7d8231f75932dc0528db8576c9df0b886ea05077e88e9b5b
