[INFO] fetching crate ilp-packet 0.3.0...
[INFO] checking ilp-packet-0.3.0 against beta for pr-78714
[INFO] extracting crate ilp-packet 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ilp-packet 0.3.0 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 ilp-packet 0.3.0
[INFO] finished tweaking crates.io crate ilp-packet 0.3.0
[INFO] tweaked toml for crates.io crate ilp-packet 0.3.0 written to /workspace/builds/worker-7/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] 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-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" "+beta" "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] 882b2ffc184ef8efb92716c1423a52341c84ff13fc1c4e74cd05617a078dd212
[INFO] running `Command { std: "docker" "start" "-a" "882b2ffc184ef8efb92716c1423a52341c84ff13fc1c4e74cd05617a078dd212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "882b2ffc184ef8efb92716c1423a52341c84ff13fc1c4e74cd05617a078dd212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "882b2ffc184ef8efb92716c1423a52341c84ff13fc1c4e74cd05617a078dd212", kill_on_drop: false }`
[INFO] [stdout] 882b2ffc184ef8efb92716c1423a52341c84ff13fc1c4e74cd05617a078dd212
[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" "+beta" "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] 516eed11b720575aa3d13220d8d6079f758b813a7bad6bff28f92e7cb45dbe94
[INFO] running `Command { std: "docker" "start" "-a" "516eed11b720575aa3d13220d8d6079f758b813a7bad6bff28f92e7cb45dbe94", kill_on_drop: false }`
[INFO] [stderr]     Checking ilp-packet v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Other(err: Box<std::error::Error>) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Other(err: Box<std::error::Error>) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:40:37
[INFO] [stdout]    |
[INFO] [stdout] 40 |             display("Error {}", err.description())
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]   --> src/oer.rs:83:16
[INFO] [stdout]    |
[INFO] [stdout] 83 |         return Ok(&empty.to_owned());
[INFO] [stdout]    |                ^^^^----------------^
[INFO] [stdout]    |                |   |
[INFO] [stdout]    |                |   temporary value created here
[INFO] [stdout]    |                returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:40:37
[INFO] [stdout]    |
[INFO] [stdout] 40 |             display("Error {}", err.description())
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]   --> src/oer.rs:83:16
[INFO] [stdout]    |
[INFO] [stdout] 83 |         return Ok(&empty.to_owned());
[INFO] [stdout]    |                ^^^^----------------^
[INFO] [stdout]    |                |   |
[INFO] [stdout]    |                |   temporary value created here
[INFO] [stdout]    |                returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ilp-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] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "516eed11b720575aa3d13220d8d6079f758b813a7bad6bff28f92e7cb45dbe94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "516eed11b720575aa3d13220d8d6079f758b813a7bad6bff28f92e7cb45dbe94", kill_on_drop: false }`
[INFO] [stdout] 516eed11b720575aa3d13220d8d6079f758b813a7bad6bff28f92e7cb45dbe94