[INFO] fetching crate url_serde 0.2.0...
[INFO] checking url_serde-0.2.0 against beta for pr-78714
[INFO] extracting crate url_serde 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate url_serde 0.2.0 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 url_serde 0.2.0
[INFO] finished tweaking crates.io crate url_serde 0.2.0
[INFO] tweaked toml for crates.io crate url_serde 0.2.0 written to /workspace/builds/worker-11/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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44461a65c5a57275547e7114fd569faabe87b7ca52246584c026969cb90aa8bc
[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" "44461a65c5a57275547e7114fd569faabe87b7ca52246584c026969cb90aa8bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44461a65c5a57275547e7114fd569faabe87b7ca52246584c026969cb90aa8bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44461a65c5a57275547e7114fd569faabe87b7ca52246584c026969cb90aa8bc", kill_on_drop: false }`
[INFO] [stdout] 44461a65c5a57275547e7114fd569faabe87b7ca52246584c026969cb90aa8bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d8c0fd723760d083f05000f407064a0299ec797a812fc5ccf416c55e0248b20
[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" "8d8c0fd723760d083f05000f407064a0299ec797a812fc5ccf416c55e0248b20", kill_on_drop: false }`
[INFO] [stderr]     Checking url_serde v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:185:42
[INFO] [stdout]     |
[INFO] [stdout] 185 |             serde::de::Error::custom(err.description())
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` 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/lib.rs:198:62
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 .map_err(|err| {serde::de::Error::custom(err.description())});
[INFO] [stdout]     |                                                              ^^^^^^^^^^^
[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/lib.rs:209:42
[INFO] [stdout]     |
[INFO] [stdout] 209 |             serde::de::Error::custom(err.description())
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[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/lib.rs:185:42
[INFO] [stdout]     |
[INFO] [stdout] 185 |             serde::de::Error::custom(err.description())
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` 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/lib.rs:198:62
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 .map_err(|err| {serde::de::Error::custom(err.description())});
[INFO] [stdout]     |                                                              ^^^^^^^^^^^
[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/lib.rs:209:42
[INFO] [stdout]     |
[INFO] [stdout] 209 |             serde::de::Error::custom(err.description())
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "8d8c0fd723760d083f05000f407064a0299ec797a812fc5ccf416c55e0248b20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d8c0fd723760d083f05000f407064a0299ec797a812fc5ccf416c55e0248b20", kill_on_drop: false }`
[INFO] [stdout] 8d8c0fd723760d083f05000f407064a0299ec797a812fc5ccf416c55e0248b20