[INFO] updating cached repository https://github.com/jiegec/online_decaf
[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] f2e64f03166046ee522535e4a79999b5fccd0cb5
[INFO] checking jiegec/online_decaf against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiegec%2Fonline_decaf" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jiegec/online_decaf 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/online_decaf
[INFO] finished tweaking git repo https://github.com/jiegec/online_decaf
[INFO] tweaked toml for git repo https://github.com/jiegec/online_decaf written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jiegec/online_decaf 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ffd80cf724033ae29f880c2aaffa5c9d202516345fef00e5f7ee73c04ba4a0f1
[INFO] running `"docker" "start" "-a" "ffd80cf724033ae29f880c2aaffa5c9d202516345fef00e5f7ee73c04ba4a0f1"`
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling static_assertions v0.3.4
[INFO] [stderr]    Compiling hashbrown v0.5.0
[INFO] [stderr]    Compiling bitset v0.1.0 (https://github.com/MashPlant/bitset#a20d7b54)
[INFO] [stderr]     Checking typed-arena v1.6.1
[INFO] [stderr]    Compiling print v0.1.0 (https://github.com/MashPlant/re2dfa#d3544ab7)
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling base-x v0.2.5
[INFO] [stderr]     Checking unescape v0.1.0
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling yew v0.9.0
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]    Compiling yew-macro v0.9.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling stdweb v0.4.19
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.10
[INFO] [stderr]     Checking lexical-core v0.4.6
[INFO] [stderr]    Compiling strum_macros v0.15.0
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking nom v5.0.1
[INFO] [stderr]     Checking nom_locate v1.0.0
[INFO] [stderr]     Checking indexmap v1.2.0
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]    Compiling re2dfa v1.0.0 (https://github.com/MashPlant/re2dfa#d3544ab7)
[INFO] [stderr]     Checking common v0.1.0 (https://github.com/jiegec/decaf-rs.git?branch=pa5_wast#17e3eead)
[INFO] [stderr]     Checking tacvm v0.1.0 (https://github.com/MashPlant/tacvm#b6bfee9a)
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling stdweb-derive v0.5.2
[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-cbe21e356c8d5e02/17e3eea/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" "ffd80cf724033ae29f880c2aaffa5c9d202516345fef00e5f7ee73c04ba4a0f1"`
[INFO] running `"docker" "rm" "-f" "ffd80cf724033ae29f880c2aaffa5c9d202516345fef00e5f7ee73c04ba4a0f1"`
[INFO] [stdout] ffd80cf724033ae29f880c2aaffa5c9d202516345fef00e5f7ee73c04ba4a0f1