[INFO] updating cached repository https://github.com/jiegec/decaf-lsp
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 501b055be9f777356c3504408c80683a5f416c05
[INFO] checking jiegec/decaf-lsp against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiegec%2Fdecaf-lsp" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jiegec/decaf-lsp on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jiegec/decaf-lsp
[INFO] finished tweaking git repo https://github.com/jiegec/decaf-lsp
[INFO] tweaked toml for git repo https://github.com/jiegec/decaf-lsp written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jiegec/decaf-lsp already has a lockfile, it will not be regenerated
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 3329c392cefeebf3ad3301029c8dac9f95949c4035b1c2f27bc26938ce10db12
[INFO] running `"docker" "start" "-a" "3329c392cefeebf3ad3301029c8dac9f95949c4035b1c2f27bc26938ce10db12"`
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling bitset v0.1.0 (https://github.com/MashPlant/bitset#a20d7b54)
[INFO] [stderr]    Compiling static_assertions v0.3.4
[INFO] [stderr]    Compiling hashbrown v0.5.0
[INFO] [stderr]    Compiling print v0.1.0 (https://github.com/MashPlant/re2dfa#b8b85e9b)
[INFO] [stderr]     Checking typed-arena v1.6.1
[INFO] [stderr]     Checking tower-service v0.2.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]     Checking codespan v0.5.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking lexical-core v0.4.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking simple-logging v2.0.2
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking codespan-reporting v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking nom v5.0.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling re2dfa v1.0.0 (https://github.com/MashPlant/re2dfa#b8b85e9b)
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]     Checking common v0.1.0 (https://github.com/jiegec/decaf-rs?branch=dev#42fedf30)
[INFO] [stderr]     Checking jsonrpc-core v14.0.1
[INFO] [stderr]     Checking lsp-types v0.61.0
[INFO] [stderr]    Compiling grammar-config v0.1.0 (https://github.com/MashPlant/lalr1#e89bdf49)
[INFO] [stderr] error[E0283]: type annotations needed: cannot resolve `std::string::String: std::ops::AddAssign<&_>`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/decaf-rs-cbe21e356c8d5e02/42fedf3/common/src/indent_printer.rs:31:20
[INFO] [stderr]    |
[INFO] [stderr] 31 |       self.content += self.indent.as_ref();
[INFO] [stderr]    |                    ^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: could not compile `common`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "3329c392cefeebf3ad3301029c8dac9f95949c4035b1c2f27bc26938ce10db12"`
[INFO] running `"docker" "rm" "-f" "3329c392cefeebf3ad3301029c8dac9f95949c4035b1c2f27bc26938ce10db12"`
[INFO] [stdout] 3329c392cefeebf3ad3301029c8dac9f95949c4035b1c2f27bc26938ce10db12