[INFO] cloning repository https://github.com/killercup/handlebars-helpers-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/killercup/handlebars-helpers-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Fhandlebars-helpers-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Fhandlebars-helpers-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4695013a0390be616ba99237d9f868c1d775894b
[INFO] checking killercup/handlebars-helpers-rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Fhandlebars-helpers-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/killercup/handlebars-helpers-rust 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/killercup/handlebars-helpers-rust
[INFO] finished tweaking git repo https://github.com/killercup/handlebars-helpers-rust
[INFO] tweaked toml for git repo https://github.com/killercup/handlebars-helpers-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/killercup/handlebars-helpers-rust 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]      Locking 9 packages
[INFO] [stderr]     Updating handlebars v0.29.1 -> v0.30.1 (latest: v5.1.2)
[INFO] [stderr]       Adding lazy_static v1.4.0
[INFO] [stderr]     Updating log v0.3.8 -> v0.4.21
[INFO] [stderr]     Updating pest v0.3.3 -> v1.0.6 (latest: v2.7.9)
[INFO] [stderr]       Adding pest_derive v1.0.8 (latest: v2.7.9)
[INFO] [stderr]       Adding quote v0.3.15 (latest: v1.0.35)
[INFO] [stderr]       Adding syn v0.11.11 (latest: v2.0.58)
[INFO] [stderr]       Adding synom v0.11.3
[INFO] [stderr]       Adding unicode-xid v0.0.4 (latest: v0.2.4)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v0.3.3
[INFO] [stderr]   Downloaded serde v1.0.12
[INFO] [stderr]   Downloaded serde_json v1.0.3
[INFO] [stderr]   Downloaded handlebars v0.30.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9b5371172bff4cbcbafc218ba8da917a21c840e14c2ce2137f559adae880595f
[INFO] running `Command { std: "docker" "start" "-a" "9b5371172bff4cbcbafc218ba8da917a21c840e14c2ce2137f559adae880595f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b5371172bff4cbcbafc218ba8da917a21c840e14c2ce2137f559adae880595f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b5371172bff4cbcbafc218ba8da917a21c840e14c2ce2137f559adae880595f", kill_on_drop: false }`
[INFO] [stdout] 9b5371172bff4cbcbafc218ba8da917a21c840e14c2ce2137f559adae880595f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] dff38cfa9adf8ecaa3c6f48259b4bca9fa3386d67840581033fe36cf5f177aa0
[INFO] running `Command { std: "docker" "start" "-a" "dff38cfa9adf8ecaa3c6f48259b4bca9fa3386d67840581033fe36cf5f177aa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v1.0.12
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking itoa v0.3.3
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]     Checking serde_json v1.0.3
[INFO] [stderr]     Checking handlebars v0.30.1
[INFO] [stderr]     Checking handlebars-helpers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `handlebars` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | extern crate handlebars;
[INFO] [stdout]    | ------------------------ the item `handlebars` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 |     use handlebars;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 11 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `handlebars` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | extern crate handlebars;
[INFO] [stdout]    | ------------------------ the item `handlebars` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 |     use handlebars;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 11 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.52s
[INFO] running `Command { std: "docker" "inspect" "dff38cfa9adf8ecaa3c6f48259b4bca9fa3386d67840581033fe36cf5f177aa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dff38cfa9adf8ecaa3c6f48259b4bca9fa3386d67840581033fe36cf5f177aa0", kill_on_drop: false }`
[INFO] [stdout] dff38cfa9adf8ecaa3c6f48259b4bca9fa3386d67840581033fe36cf5f177aa0