[INFO] crate know-thy-shell 0.1.12 is already in cache
[INFO] checking know-thy-shell-0.1.12 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] extracting crate know-thy-shell 0.1.12 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate know-thy-shell 0.1.12 on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate know-thy-shell 0.1.12
[INFO] finished tweaking crates.io crate know-thy-shell 0.1.12
[INFO] tweaked toml for crates.io crate know-thy-shell 0.1.12 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate know-thy-shell 0.1.12 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] dcba1c35ed30eb695008f29167b761b36a5c5e4b0a607f993a0eeef63f69aa9b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "dcba1c35ed30eb695008f29167b761b36a5c5e4b0a607f993a0eeef63f69aa9b"`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling spin v0.5.0
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]     Checking alloc-no-stdlib v1.3.0
[INFO] [stderr]     Checking integer-encoding v1.0.7
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]    Compiling parquet v0.14.0
[INFO] [stderr]     Checking encode_unicode v0.3.5
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking flatbuffers v0.5.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]     Checking brotli-decompressor v1.3.1
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr] error[E0277]: cannot add `&std::borrow::Cow<'_, str>` to `std::string::String`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pulldown-cmark-0.2.0/src/utils.rs:51:30
[INFO] [stderr]    |
[INFO] [stderr] 51 |         Owned(a.into_owned() + &b)
[INFO] [stderr]    |                              ^ no implementation for `std::string::String + &std::borrow::Cow<'_, str>`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Add<&std::borrow::Cow<'_, str>>` 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: could not compile `pulldown-cmark`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "dcba1c35ed30eb695008f29167b761b36a5c5e4b0a607f993a0eeef63f69aa9b"`
[INFO] running `"docker" "rm" "-f" "dcba1c35ed30eb695008f29167b761b36a5c5e4b0a607f993a0eeef63f69aa9b"`
[INFO] [stdout] dcba1c35ed30eb695008f29167b761b36a5c5e4b0a607f993a0eeef63f69aa9b