[INFO] fetching crate interledger 0.6.0...
[INFO] checking interledger-0.6.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate interledger 0.6.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate interledger 0.6.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate interledger 0.6.0
[INFO] finished tweaking crates.io crate interledger 0.6.0
[INFO] tweaked toml for crates.io crate interledger 0.6.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d99e1476e7b5ca2dd1ee633b9eacb4c6d65bacf3f4337471e5dd423940d021b1
[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" "d99e1476e7b5ca2dd1ee633b9eacb4c6d65bacf3f4337471e5dd423940d021b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d99e1476e7b5ca2dd1ee633b9eacb4c6d65bacf3f4337471e5dd423940d021b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d99e1476e7b5ca2dd1ee633b9eacb4c6d65bacf3f4337471e5dd423940d021b1", kill_on_drop: false }`
[INFO] [stdout] d99e1476e7b5ca2dd1ee633b9eacb4c6d65bacf3f4337471e5dd423940d021b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a99b6ddb233fbc9a5f17ff44012673c5a903b1dd47176594e6db1386a89c07d7
[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" "a99b6ddb233fbc9a5f17ff44012673c5a903b1dd47176594e6db1386a89c07d7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking stream-cancel v0.4.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking futures-retry v0.3.3
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking serde_path_to_error v0.1.4
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking interledger-packet v0.4.0
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking zeroize v1.0.0
[INFO] [stdout] error[E0425]: cannot find function `encode` in crate `hex`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/interledger-packet-0.4.0/src/packet.rs:252:23
[INFO] [stdout]     |
[INFO] [stdout] 252 |                 &hex::encode(self.execution_condition()),
[INFO] [stdout]     |                       ^^^^^^ not found in `hex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `encode` in crate `hex`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/interledger-packet-0.4.0/src/packet.rs:366:41
[INFO] [stdout]     |
[INFO] [stdout] 366 |             .field("fulfillment", &hex::encode(self.fulfillment()))
[INFO] [stdout]     |                                         ^^^^^^ not found in `hex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking secrecy v0.5.2
[INFO] [stderr]     Checking publicsuffix v1.5.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interledger-packet`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a99b6ddb233fbc9a5f17ff44012673c5a903b1dd47176594e6db1386a89c07d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99b6ddb233fbc9a5f17ff44012673c5a903b1dd47176594e6db1386a89c07d7", kill_on_drop: false }`
[INFO] [stdout] a99b6ddb233fbc9a5f17ff44012673c5a903b1dd47176594e6db1386a89c07d7