[INFO] fetching crate tnetstring 0.2.0...
[INFO] testing tnetstring-0.2.0 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate tnetstring 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate tnetstring 0.2.0 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tnetstring 0.2.0
[INFO] finished tweaking crates.io crate tnetstring 0.2.0
[INFO] tweaked toml for crates.io crate tnetstring 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6bc9eaf308b96ffe92709e299d23cf16b251cf60e74702f77bbfafeebe5a211
[INFO] running `Command { std: "docker" "start" "-a" "a6bc9eaf308b96ffe92709e299d23cf16b251cf60e74702f77bbfafeebe5a211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6bc9eaf308b96ffe92709e299d23cf16b251cf60e74702f77bbfafeebe5a211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6bc9eaf308b96ffe92709e299d23cf16b251cf60e74702f77bbfafeebe5a211", kill_on_drop: false }`
[INFO] [stdout] a6bc9eaf308b96ffe92709e299d23cf16b251cf60e74702f77bbfafeebe5a211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fedde6df806bbbd0c0b8a72cbb220289b2f984696b0fe4a6a4ca0d53bbb793e4
[INFO] running `Command { std: "docker" "start" "-a" "fedde6df806bbbd0c0b8a72cbb220289b2f984696b0fe4a6a4ca0d53bbb793e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling tnetstring v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:50:48
[INFO] [stdout]    |
[INFO] [stdout] 50 |         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] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/ser.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 |         .map(|x| String::from(x.as_ref()))
[INFO] [stdout]    |                  ^^^^^^^^^^^^ cannot infer type for reference `&_`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `std::string::String: From<&_>` found in the `alloc` crate:
[INFO] [stdout]            - impl<> From<&std::string::String> for std::string::String;
[INFO] [stdout]            - impl<> From<&str> for std::string::String;
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/ser.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |         .map(|x| String::from(x.as_ref()))
[INFO] [stdout]    |                                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `std::string::String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for std::string::String;
[INFO] [stdout]            - impl AsRef<Path> for std::string::String;
[INFO] [stdout]            - impl AsRef<[u8]> for std::string::String;
[INFO] [stdout]            - impl AsRef<str> for std::string::String;
[INFO] [stdout] help: try using a fully qualified path to specify the expected types
[INFO] [stdout]    |
[INFO] [stdout] 49 |         .map(|x| String::from(<std::string::String as AsRef<T>>::as_ref(x)))
[INFO] [stdout]    |                               ++++++++++++++++++++++++++++++++++++++++++ ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tnetstring` (lib) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "fedde6df806bbbd0c0b8a72cbb220289b2f984696b0fe4a6a4ca0d53bbb793e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fedde6df806bbbd0c0b8a72cbb220289b2f984696b0fe4a6a4ca0d53bbb793e4", kill_on_drop: false }`
[INFO] [stdout] fedde6df806bbbd0c0b8a72cbb220289b2f984696b0fe4a6a4ca0d53bbb793e4
