[INFO] cloning repository https://github.com/samfrench/mustachers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samfrench/mustachers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamfrench%2Fmustachers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamfrench%2Fmustachers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 513d8a69263f1f7d70d67c3cc4f42840caa36973
[INFO] building samfrench/mustachers against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamfrench%2Fmustachers" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samfrench/mustachers on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samfrench/mustachers
[INFO] finished tweaking git repo https://github.com/samfrench/mustachers
[INFO] tweaked toml for git repo https://github.com/samfrench/mustachers written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/samfrench/mustachers 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 271c74f936d4f61060058860d1ee0b5006b72ddd9ece51bd0c4beb400ec62e53
[INFO] running `Command { std: "docker" "start" "-a" "271c74f936d4f61060058860d1ee0b5006b72ddd9ece51bd0c4beb400ec62e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "271c74f936d4f61060058860d1ee0b5006b72ddd9ece51bd0c4beb400ec62e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "271c74f936d4f61060058860d1ee0b5006b72ddd9ece51bd0c4beb400ec62e53", kill_on_drop: false }`
[INFO] [stdout] 271c74f936d4f61060058860d1ee0b5006b72ddd9ece51bd0c4beb400ec62e53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 390c53b82ebb36ddecedf9fb3ee846e4bb3bcad147d033ae6d911ac439bd1be4
[INFO] running `Command { std: "docker" "start" "-a" "390c53b82ebb36ddecedf9fb3ee846e4bb3bcad147d033ae6d911ac439bd1be4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling bindgen v0.62.0
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling shell-words v1.1.0
[INFO] [stderr]    Compiling rb-sys-env v0.1.2
[INFO] [stderr]    Compiling serde v1.0.175
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling magnus v0.4.4
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling regex-automata v0.3.3
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling magnus-macros v0.3.0
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling rb-sys-build v0.9.79
[INFO] [stderr]    Compiling rb-sys v0.9.79
[INFO] [stderr]    Compiling mustachers v0.1.0 (/opt/rustwide/workdir/ext/mustachers)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.76s
[INFO] running `Command { std: "docker" "inspect" "390c53b82ebb36ddecedf9fb3ee846e4bb3bcad147d033ae6d911ac439bd1be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390c53b82ebb36ddecedf9fb3ee846e4bb3bcad147d033ae6d911ac439bd1be4", kill_on_drop: false }`
[INFO] [stdout] 390c53b82ebb36ddecedf9fb3ee846e4bb3bcad147d033ae6d911ac439bd1be4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b2bef27a6f646a5ac749d28e3ccd43d163bf0d318fb257ffe87fbe94a51a268
[INFO] running `Command { std: "docker" "start" "-a" "1b2bef27a6f646a5ac749d28e3ccd43d163bf0d318fb257ffe87fbe94a51a268", kill_on_drop: false }`
[INFO] [stderr]    Compiling mustachers v0.1.0 (/opt/rustwide/workdir/ext/mustachers)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "1b2bef27a6f646a5ac749d28e3ccd43d163bf0d318fb257ffe87fbe94a51a268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2bef27a6f646a5ac749d28e3ccd43d163bf0d318fb257ffe87fbe94a51a268", kill_on_drop: false }`
[INFO] [stdout] 1b2bef27a6f646a5ac749d28e3ccd43d163bf0d318fb257ffe87fbe94a51a268