[INFO] fetching crate signatory-ring 0.21.0...
[INFO] checking signatory-ring-0.21.0 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate signatory-ring 0.21.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate signatory-ring 0.21.0 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signatory-ring 0.21.0
[INFO] finished tweaking crates.io crate signatory-ring 0.21.0
[INFO] tweaked toml for crates.io crate signatory-ring 0.21.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87c1075a59a5dcbd2d7e28b40b26b53012fa787c987109a187eb3e78670ec8ec
[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" "87c1075a59a5dcbd2d7e28b40b26b53012fa787c987109a187eb3e78670ec8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87c1075a59a5dcbd2d7e28b40b26b53012fa787c987109a187eb3e78670ec8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87c1075a59a5dcbd2d7e28b40b26b53012fa787c987109a187eb3e78670ec8ec", kill_on_drop: false }`
[INFO] [stdout] 87c1075a59a5dcbd2d7e28b40b26b53012fa787c987109a187eb3e78670ec8ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 185b7a4c0bd9e62beacc84cedba744c6c2d07fc4ee82fdfbf7fb6d690d9239df
[INFO] running `Command { std: "docker" "start" "-a" "185b7a4c0bd9e62beacc84cedba744c6c2d07fc4ee82fdfbf7fb6d690d9239df", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking elliptic-curve v0.5.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking ed25519 v1.0.1
[INFO] [stderr]     Checking ecdsa v0.7.2
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking p384 v0.3.0
[INFO] [stderr]     Checking p256 v0.4.1
[INFO] [stderr]     Checking signatory v0.21.0
[INFO] [stderr]     Checking signatory-ring v0.21.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "185b7a4c0bd9e62beacc84cedba744c6c2d07fc4ee82fdfbf7fb6d690d9239df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "185b7a4c0bd9e62beacc84cedba744c6c2d07fc4ee82fdfbf7fb6d690d9239df", kill_on_drop: false }`
[INFO] [stdout] 185b7a4c0bd9e62beacc84cedba744c6c2d07fc4ee82fdfbf7fb6d690d9239df