[INFO] fetching crate tnetstring 0.2.0...
[INFO] checking tnetstring-0.2.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate tnetstring 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tnetstring 0.2.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 926c11db8bbaaa29a576d3f90463f81b213a855ca53b9d3a70eb9ed95fbcde10
[INFO] running `Command { std: "docker" "start" "-a" "926c11db8bbaaa29a576d3f90463f81b213a855ca53b9d3a70eb9ed95fbcde10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "926c11db8bbaaa29a576d3f90463f81b213a855ca53b9d3a70eb9ed95fbcde10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "926c11db8bbaaa29a576d3f90463f81b213a855ca53b9d3a70eb9ed95fbcde10", kill_on_drop: false }`
[INFO] [stdout] 926c11db8bbaaa29a576d3f90463f81b213a855ca53b9d3a70eb9ed95fbcde10
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 115f0712f6a667f1a708ed93d8eb37f132e7e4882aaba5720df88088aab65730
[INFO] running `Command { std: "docker" "start" "-a" "115f0712f6a667f1a708ed93d8eb37f132e7e4882aaba5720df88088aab65730", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling serde_derive v1.0.128
[INFO] [stderr]    Compiling serde v1.0.128
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking tnetstring 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/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] warning: use of deprecated associated function `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: cannot satisfy `std::string::String: From<&_>`
[INFO] [stdout] note: required by `std::convert::From::from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tnetstring` due to 2 previous errors; 1 warning emitted
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[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: cannot satisfy `std::string::String: From<&_>`
[INFO] [stdout] note: required by `std::convert::From::from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "115f0712f6a667f1a708ed93d8eb37f132e7e4882aaba5720df88088aab65730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "115f0712f6a667f1a708ed93d8eb37f132e7e4882aaba5720df88088aab65730", kill_on_drop: false }`
[INFO] [stdout] 115f0712f6a667f1a708ed93d8eb37f132e7e4882aaba5720df88088aab65730