[INFO] fetching crate nkeys 0.0.10...
[INFO] checking nkeys-0.0.10 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate nkeys 0.0.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nkeys 0.0.10 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nkeys 0.0.10
[INFO] finished tweaking crates.io crate nkeys 0.0.10
[INFO] tweaked toml for crates.io crate nkeys 0.0.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate nkeys 0.0.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded exitfailure v0.5.1
[INFO] [stderr]   Downloaded quicli v0.4.0
[INFO] [stderr]   Downloaded clap-verbosity-flag v0.2.0
[INFO] [stderr]   Downloaded curve25519-dalek v1.2.4
[INFO] [stderr]   Downloaded signatory-dalek v0.20.0
[INFO] [stderr]   Downloaded ed25519-dalek v1.0.0-pre.2
[INFO] [stderr]   Downloaded globwalk v0.3.1
[INFO] [stderr]   Downloaded clear_on_drop v0.2.4
[INFO] [stderr]   Downloaded signatory v0.20.0
[INFO] [stderr]   Downloaded term-table v1.3.0
[INFO] [stderr]   Downloaded subtle-encoding v0.5.1
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 211e50691664134afc50c19aacbf04c7a75e3c15bd83cdadf9b10bfcded390b4
[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" "211e50691664134afc50c19aacbf04c7a75e3c15bd83cdadf9b10bfcded390b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "211e50691664134afc50c19aacbf04c7a75e3c15bd83cdadf9b10bfcded390b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "211e50691664134afc50c19aacbf04c7a75e3c15bd83cdadf9b10bfcded390b4", kill_on_drop: false }`
[INFO] [stdout] 211e50691664134afc50c19aacbf04c7a75e3c15bd83cdadf9b10bfcded390b4
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f64ca8545aba3f25e3913ec69591476f435891a79a8fd9651ae23a3020f96d3a
[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" "f64ca8545aba3f25e3913ec69591476f435891a79a8fd9651ae23a3020f96d3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking data-encoding v2.3.0
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling curve25519-dalek v1.2.4
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking ed25519 v1.0.2
[INFO] [stderr]     Checking signatory v0.20.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.2
[INFO] [stderr]     Checking signatory-dalek v0.20.0
[INFO] [stderr]     Checking nkeys v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.37s
[INFO] running `Command { std: "docker" "inspect" "f64ca8545aba3f25e3913ec69591476f435891a79a8fd9651ae23a3020f96d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f64ca8545aba3f25e3913ec69591476f435891a79a8fd9651ae23a3020f96d3a", kill_on_drop: false }`
[INFO] [stdout] f64ca8545aba3f25e3913ec69591476f435891a79a8fd9651ae23a3020f96d3a