[INFO] crate oftlisp-anf 0.1.3 is already in cache
[INFO] checking oftlisp-anf-0.1.3 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] extracting crate oftlisp-anf 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate oftlisp-anf 0.1.3 on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate oftlisp-anf 0.1.3
[INFO] finished tweaking crates.io crate oftlisp-anf 0.1.3
[INFO] tweaked toml for crates.io crate oftlisp-anf 0.1.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7e47d920624c5eccfd6a496681e6f106bd4dabeb59535930b9242d78389bbd61
[INFO] running `"docker" "start" "-a" "7e47d920624c5eccfd6a496681e6f106bd4dabeb59535930b9242d78389bbd61"`
[INFO] [stderr]     Checking try_opt v0.1.1
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]     Checking smallvec v0.4.5
[INFO] [stderr]     Checking gc v0.3.3
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]    Compiling synstructure v0.5.2
[INFO] [stderr]    Compiling gc_derive v0.3.1
[INFO] [stderr]     Checking oftlisp v0.1.3
[INFO] [stderr]     Checking oftlisp-anf v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: cannot add-assign `&gc::Gc<std::string::String>` to `std::string::String`
[INFO] [stderr]    --> src/primitives.rs:239:17
[INFO] [stderr]     |
[INFO] [stderr] 239 |             buf += s;
[INFO] [stderr]     |                 ^^ no implementation for `std::string::String += &gc::Gc<std::string::String>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&gc::Gc<std::string::String>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add-assign `&gc::Gc<std::string::String>` to `std::string::String`
[INFO] [stderr]    --> src/primitives.rs:239:17
[INFO] [stderr]     |
[INFO] [stderr] 239 |             buf += s;
[INFO] [stderr]     |                 ^^ no implementation for `std::string::String += &gc::Gc<std::string::String>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&gc::Gc<std::string::String>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `oftlisp-anf`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `oftlisp-anf`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7e47d920624c5eccfd6a496681e6f106bd4dabeb59535930b9242d78389bbd61"`
[INFO] running `"docker" "rm" "-f" "7e47d920624c5eccfd6a496681e6f106bd4dabeb59535930b9242d78389bbd61"`
[INFO] [stdout] 7e47d920624c5eccfd6a496681e6f106bd4dabeb59535930b9242d78389bbd61