[INFO] fetching crate tnetstring 0.2.0... [INFO] testing tnetstring-0.2.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] extracting crate tnetstring 0.2.0 into /workspace/builds/worker-33/source [INFO] validating manifest of crates.io crate tnetstring 0.2.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-33/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 65a240318a13ddac1cc0a0fc26bbafeadcd25c7ffaa605a8a23af87a41f1a2e2 [INFO] running `Command { std: "docker" "start" "-a" "65a240318a13ddac1cc0a0fc26bbafeadcd25c7ffaa605a8a23af87a41f1a2e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "65a240318a13ddac1cc0a0fc26bbafeadcd25c7ffaa605a8a23af87a41f1a2e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65a240318a13ddac1cc0a0fc26bbafeadcd25c7ffaa605a8a23af87a41f1a2e2", kill_on_drop: false }` [INFO] [stdout] 65a240318a13ddac1cc0a0fc26bbafeadcd25c7ffaa605a8a23af87a41f1a2e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 07b91ae31af64f6db77d31f68fe40025733f741e3a77e830232a7c0e43f89be0 [INFO] running `Command { std: "docker" "start" "-a" "07b91ae31af64f6db77d31f68fe40025733f741e3a77e830232a7c0e43f89be0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling 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] 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] note: required by `std::convert::From::from` [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] | | cannot infer type for type parameter `T` declared on the trait `AsRef` [INFO] [stdout] | this method call resolves to `&T` [INFO] [stdout] | [INFO] [stdout] = note: multiple `impl`s satisfying `std::string::String: AsRef<_>` found in the following crates: `alloc`, `std`: [INFO] [stdout] - impl AsRef for std::string::String; [INFO] [stdout] - impl AsRef for std::string::String; [INFO] [stdout] - impl AsRef<[u8]> for std::string::String; [INFO] [stdout] - impl AsRef for std::string::String; [INFO] [stdout] help: use the fully qualified path for the potential candidates [INFO] [stdout] | [INFO] [stdout] 49 | .map(|x| String::from(>::as_ref(x))) [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] 49 | .map(|x| String::from(>::as_ref(x))) [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] 49 | .map(|x| String::from(>::as_ref(x))) [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] 49 | .map(|x| String::from(>::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` due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "07b91ae31af64f6db77d31f68fe40025733f741e3a77e830232a7c0e43f89be0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07b91ae31af64f6db77d31f68fe40025733f741e3a77e830232a7c0e43f89be0", kill_on_drop: false }` [INFO] [stdout] 07b91ae31af64f6db77d31f68fe40025733f741e3a77e830232a7c0e43f89be0