[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] checking samfrench/mustachers against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamfrench%2Fmustachers" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samfrench/mustachers on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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-7-tc1/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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.11
[INFO] [stderr]   Downloaded mustache v0.9.0
[INFO] [stderr]   Downloaded magnus-macros v0.3.0
[INFO] [stderr]   Downloaded shlex v1.1.0
[INFO] [stderr]   Downloaded shell-words v1.1.0
[INFO] [stderr]   Downloaded rb-sys-build v0.9.79
[INFO] [stderr]   Downloaded quote v1.0.32
[INFO] [stderr]   Downloaded cexpr v0.6.0
[INFO] [stderr]   Downloaded glob v0.3.1
[INFO] [stderr]   Downloaded clang-sys v1.6.1
[INFO] [stderr]   Downloaded magnus v0.4.4
[INFO] [stderr]   Downloaded serde v1.0.175
[INFO] [stderr]   Downloaded bindgen v0.62.0
[INFO] [stderr]   Downloaded regex-automata v0.3.3
[INFO] [stderr]   Downloaded regex-syntax v0.7.4
[INFO] [stderr]   Downloaded libc v0.2.147
[INFO] [stderr]   Downloaded regex v1.9.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.66
[INFO] [stderr]   Downloaded rb-sys v0.9.79
[INFO] [stderr]   Downloaded rb-sys-env v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3b840c0f749a9ab0ef3ddf16a745ae88a1d7d836b2023b3e259f35efa06cb28
[INFO] running `Command { std: "docker" "start" "-a" "a3b840c0f749a9ab0ef3ddf16a745ae88a1d7d836b2023b3e259f35efa06cb28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3b840c0f749a9ab0ef3ddf16a745ae88a1d7d836b2023b3e259f35efa06cb28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3b840c0f749a9ab0ef3ddf16a745ae88a1d7d836b2023b3e259f35efa06cb28", kill_on_drop: false }`
[INFO] [stdout] a3b840c0f749a9ab0ef3ddf16a745ae88a1d7d836b2023b3e259f35efa06cb28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80386a77627450444faf876e55bbd7692e0f51beb6d2d89e7486c206e68dd8af
[INFO] running `Command { std: "docker" "start" "-a" "80386a77627450444faf876e55bbd7692e0f51beb6d2d89e7486c206e68dd8af", 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 regex-syntax v0.7.4
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bindgen v0.62.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling shell-words v1.1.0
[INFO] [stderr]    Compiling serde v1.0.175
[INFO] [stderr]    Compiling rb-sys-env v0.1.2
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling magnus v0.4.4
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling regex-automata v0.3.3
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling magnus-macros v0.3.0
[INFO] [stderr]    Compiling rb-sys-build v0.9.79
[INFO] [stderr]    Compiling rb-sys v0.9.79
[INFO] [stderr]     Checking mustachers v0.1.0 (/opt/rustwide/workdir/ext/mustachers)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.13s
[INFO] running `Command { std: "docker" "inspect" "80386a77627450444faf876e55bbd7692e0f51beb6d2d89e7486c206e68dd8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80386a77627450444faf876e55bbd7692e0f51beb6d2d89e7486c206e68dd8af", kill_on_drop: false }`
[INFO] [stdout] 80386a77627450444faf876e55bbd7692e0f51beb6d2d89e7486c206e68dd8af
[INFO] checking samfrench/mustachers against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamfrench%2Fmustachers" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samfrench/mustachers on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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-7-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00aec0e2590fa6b1b1715a3b8d7d7f74090b439513ec07c6252c53d7aa268040
[INFO] running `Command { std: "docker" "start" "-a" "00aec0e2590fa6b1b1715a3b8d7d7f74090b439513ec07c6252c53d7aa268040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00aec0e2590fa6b1b1715a3b8d7d7f74090b439513ec07c6252c53d7aa268040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00aec0e2590fa6b1b1715a3b8d7d7f74090b439513ec07c6252c53d7aa268040", kill_on_drop: false }`
[INFO] [stdout] 00aec0e2590fa6b1b1715a3b8d7d7f74090b439513ec07c6252c53d7aa268040
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da826ea623a258cbe18e915641bad4debd210fdea640264480e4ce0152ff6308
[INFO] running `Command { std: "docker" "start" "-a" "da826ea623a258cbe18e915641bad4debd210fdea640264480e4ce0152ff6308", 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 libc v0.2.147
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling bindgen v0.62.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling libloading v0.7.4
[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]     Checking log v0.4.19
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling magnus v0.4.4
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling regex-automata v0.3.3
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mustache-0.9.0/src/macros.rs:7:34
[INFO] [stdout]     |
[INFO] [stdout] 7   |       ($fmt:expr, $($arg:tt)+) => ({
[INFO] [stdout]     |  __________________________________^
[INFO] [stdout] 8   | |         panic!(
[INFO] [stdout] 9   | |             concat!("bug: ",
[INFO] [stdout] 10  | |                     $fmt,
[INFO] [stdout] ...   |
[INFO] [stdout] 14  | |         )
[INFO] [stdout] 15  | |     });
[INFO] [stdout]     | |_____^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mustache-0.9.0/src/template.rs:224:25
[INFO] [stdout]     |
[INFO] [stdout] 224 |                           bug!("render_utag: unexpected value {:?}", value);
[INFO] [stdout]     |                           ------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `bug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mustache` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "da826ea623a258cbe18e915641bad4debd210fdea640264480e4ce0152ff6308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da826ea623a258cbe18e915641bad4debd210fdea640264480e4ce0152ff6308", kill_on_drop: false }`
[INFO] [stdout] da826ea623a258cbe18e915641bad4debd210fdea640264480e4ce0152ff6308