[INFO] fetching crate doge 0.1.0...
[INFO] checking doge-0.1.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate doge 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate doge 0.1.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate doge 0.1.0
[INFO] finished tweaking crates.io crate doge 0.1.0
[INFO] tweaked toml for crates.io crate doge 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate doge 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded static_assertions v0.3.4
[INFO] [stderr]   Downloaded serde v1.0.102
[INFO] [stderr]   Downloaded lexical v4.0.0
[INFO] [stderr]   Downloaded lexical-core v0.6.2
[INFO] [stderr]   Downloaded serde_json v1.0.41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 761622c86cd7fda3c561f2185d75c48e9d6c47a8b2b23ba26d6f08e933a81aa4
[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" "761622c86cd7fda3c561f2185d75c48e9d6c47a8b2b23ba26d6f08e933a81aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "761622c86cd7fda3c561f2185d75c48e9d6c47a8b2b23ba26d6f08e933a81aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "761622c86cd7fda3c561f2185d75c48e9d6c47a8b2b23ba26d6f08e933a81aa4", kill_on_drop: false }`
[INFO] [stdout] 761622c86cd7fda3c561f2185d75c48e9d6c47a8b2b23ba26d6f08e933a81aa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f60fb72ae7a0678b947021cc2c8a9f100c10d4f3a1d08975241911464b55ad04
[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" "f60fb72ae7a0678b947021cc2c8a9f100c10d4f3a1d08975241911464b55ad04", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]    Compiling lexical v4.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking doge v0.1.0 (/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/error.rs:30:29
[INFO] [stdout]    |
[INFO] [stdout] 30 |         formatter.write_str(std::error::Error::description(self))
[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/error.rs:37:39
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Error::IO(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 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/error.rs:30:29
[INFO] [stdout]    |
[INFO] [stdout] 30 |         formatter.write_str(std::error::Error::description(self))
[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/error.rs:37:39
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Error::IO(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.42s
[INFO] running `Command { std: "docker" "inspect" "f60fb72ae7a0678b947021cc2c8a9f100c10d4f3a1d08975241911464b55ad04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f60fb72ae7a0678b947021cc2c8a9f100c10d4f3a1d08975241911464b55ad04", kill_on_drop: false }`
[INFO] [stdout] f60fb72ae7a0678b947021cc2c8a9f100c10d4f3a1d08975241911464b55ad04