[INFO] fetching crate nerve_base 0.2.1...
[INFO] checking nerve_base-0.2.1 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate nerve_base 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nerve_base 0.2.1 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nerve_base 0.2.1
[INFO] finished tweaking crates.io crate nerve_base 0.2.1
[INFO] tweaked toml for crates.io crate nerve_base 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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] d6e8460bc9d810e8442abfb914b69fd1614c74e0a3252be237ee65e7bf2b795a
[INFO] running `Command { std: "docker" "start" "-a" "d6e8460bc9d810e8442abfb914b69fd1614c74e0a3252be237ee65e7bf2b795a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6e8460bc9d810e8442abfb914b69fd1614c74e0a3252be237ee65e7bf2b795a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e8460bc9d810e8442abfb914b69fd1614c74e0a3252be237ee65e7bf2b795a", kill_on_drop: false }`
[INFO] [stdout] d6e8460bc9d810e8442abfb914b69fd1614c74e0a3252be237ee65e7bf2b795a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 215dbc6a02301452cf8bf58ec6282df937d43ca52b34736b2c2f6402779b48a7
[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" "215dbc6a02301452cf8bf58ec6282df937d43ca52b34736b2c2f6402779b48a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking pnet_base v0.27.2
[INFO] [stderr]    Compiling pnet v0.27.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking pnet_sys v0.27.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking ipnetwork v0.17.0
[INFO] [stderr]     Checking pnet_macros_support v0.27.2
[INFO] [stderr]     Checking pnet_datalink v0.27.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.27.2
[INFO] [stderr]    Compiling pnet_packet v0.27.2
[INFO] [stderr]     Checking pnet_transport v0.27.2
[INFO] [stderr]     Checking nerve_base v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.45s
[INFO] running `Command { std: "docker" "inspect" "215dbc6a02301452cf8bf58ec6282df937d43ca52b34736b2c2f6402779b48a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "215dbc6a02301452cf8bf58ec6282df937d43ca52b34736b2c2f6402779b48a7", kill_on_drop: false }`
[INFO] [stdout] 215dbc6a02301452cf8bf58ec6282df937d43ca52b34736b2c2f6402779b48a7