[INFO] fetching crate network_peers_discovery 0.0.2...
[INFO] checking network_peers_discovery-0.0.2 against beta for pr-78714
[INFO] extracting crate network_peers_discovery 0.0.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate network_peers_discovery 0.0.2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate network_peers_discovery 0.0.2
[INFO] finished tweaking crates.io crate network_peers_discovery 0.0.2
[INFO] tweaked toml for crates.io crate network_peers_discovery 0.0.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acb79caf7a0ef0c299cca1c3df979a7e189ed1cb9f60db495250e41db08595cc
[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" "acb79caf7a0ef0c299cca1c3df979a7e189ed1cb9f60db495250e41db08595cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acb79caf7a0ef0c299cca1c3df979a7e189ed1cb9f60db495250e41db08595cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb79caf7a0ef0c299cca1c3df979a7e189ed1cb9f60db495250e41db08595cc", kill_on_drop: false }`
[INFO] [stdout] acb79caf7a0ef0c299cca1c3df979a7e189ed1cb9f60db495250e41db08595cc
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 680f72539488f76b70640000087350ca271f50514e4c75f7df1b3808a15c1862
[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" "680f72539488f76b70640000087350ca271f50514e4c75f7df1b3808a15c1862", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling os_info v1.3.3
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking ring v0.16.15
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking serde_with v1.5.1
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking semver-parser v0.6.2
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking semver v0.5.1
[INFO] [stderr]     Checking bson v0.14.1
[INFO] [stderr]     Checking escargot v0.3.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking assert_cmd v0.10.2
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking ra_common v0.0.2
[INFO] [stderr]     Checking rusted_cypher v1.1.0
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]     Checking mongodb v0.9.2
[INFO] [stderr]     Checking network_peers_discovery v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> tests/npd.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::Command;  // Run programs
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `assert_cmd::prelude::*`
[INFO] [stdout]  --> tests/npd.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use assert_cmd::prelude::*; // Add methods on commands
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.34s
[INFO] running `Command { std: "docker" "inspect" "680f72539488f76b70640000087350ca271f50514e4c75f7df1b3808a15c1862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "680f72539488f76b70640000087350ca271f50514e4c75f7df1b3808a15c1862", kill_on_drop: false }`
[INFO] [stdout] 680f72539488f76b70640000087350ca271f50514e4c75f7df1b3808a15c1862