[INFO] fetching crate generic_symbolic_expressions 5.0.3...
[INFO] checking generic_symbolic_expressions-5.0.3 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate generic_symbolic_expressions 5.0.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate generic_symbolic_expressions 5.0.3 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate generic_symbolic_expressions 5.0.3
[INFO] finished tweaking crates.io crate generic_symbolic_expressions 5.0.3
[INFO] tweaked toml for crates.io crate generic_symbolic_expressions 5.0.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate generic_symbolic_expressions 5.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0929d2b29ba617597c1bf82bed2d87c4193ee01e7979bcc6820202237deb2b8
[INFO] running `Command { std: "docker" "start" "-a" "d0929d2b29ba617597c1bf82bed2d87c4193ee01e7979bcc6820202237deb2b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0929d2b29ba617597c1bf82bed2d87c4193ee01e7979bcc6820202237deb2b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0929d2b29ba617597c1bf82bed2d87c4193ee01e7979bcc6820202237deb2b8", kill_on_drop: false }`
[INFO] [stdout] d0929d2b29ba617597c1bf82bed2d87c4193ee01e7979bcc6820202237deb2b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66c62b283f70498d4eb0e0a5abf5fda0fdde0e2179cb7514a289f59b17553c54
[INFO] running `Command { std: "docker" "start" "-a" "66c62b283f70498d4eb0e0a5abf5fda0fdde0e2179cb7514a289f59b17553c54", kill_on_drop: false }`
[INFO] [stderr]     Checking generic_symbolic_expressions v5.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/iteratom.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn from_sexp(&Sexp) -> Result<Self, SexpError>;
[INFO] [stdout]    |                  ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Sexp`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:46:32
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/iteratom.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn from_sexp(&Sexp) -> Result<Self, SexpError>;
[INFO] [stdout]    |                  ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Sexp`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:46:32
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `msg`, `line`, and `col` are never read
[INFO] [stdout]   --> src/error.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct ParseError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 60 |     msg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 61 |     line: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 62 |     col: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `symbolic_expressions`
[INFO] [stdout]  --> examples/ex1.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate symbolic_expressions;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `symbolic_expressions`
[INFO] [stdout]  --> tests/iteratom.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate symbolic_expressions;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generic_symbolic_expressions` (example "ex1") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0405]: cannot find trait `FromSexp` in this scope
[INFO] [stdout]   --> tests/iteratom.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl FromSexp for Qq {
[INFO] [stdout]    |      ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `IterAtom`
[INFO] [stdout]   --> tests/iteratom.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut i = IterAtom::new(&s, "a")?;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 use of undeclared type `IterAtom`
[INFO] [stdout]    |                 help: a trait with a similar name exists: `Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] warning: fields `msg`, `line`, and `col` are never read
[INFO] [stdout]   --> src/error.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct ParseError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 60 |     msg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 61 |     line: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 62 |     col: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generic_symbolic_expressions` (test "iteratom") due to 4 previous errors
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66c62b283f70498d4eb0e0a5abf5fda0fdde0e2179cb7514a289f59b17553c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c62b283f70498d4eb0e0a5abf5fda0fdde0e2179cb7514a289f59b17553c54", kill_on_drop: false }`
[INFO] [stdout] 66c62b283f70498d4eb0e0a5abf5fda0fdde0e2179cb7514a289f59b17553c54
