[INFO] fetching crate twiml_derive 0.1.0...
[INFO] building twiml_derive-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate twiml_derive 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate twiml_derive 0.1.0
[INFO] finished tweaking crates.io crate twiml_derive 0.1.0
[INFO] tweaked toml for crates.io crate twiml_derive 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twiml_derive 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate twiml_derive 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67e30982800986aee235d906e884fdc8f894ef3b65149a5a9896bfcb6e554ed2
[INFO] running `Command { std: "docker" "start" "-a" "67e30982800986aee235d906e884fdc8f894ef3b65149a5a9896bfcb6e554ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67e30982800986aee235d906e884fdc8f894ef3b65149a5a9896bfcb6e554ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67e30982800986aee235d906e884fdc8f894ef3b65149a5a9896bfcb6e554ed2", kill_on_drop: false }`
[INFO] [stdout] 67e30982800986aee235d906e884fdc8f894ef3b65149a5a9896bfcb6e554ed2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ea9349c2d21f6848b289477fb04d7661fb42cf05596fccf7e9a8d6f424f0c85
[INFO] running `Command { std: "docker" "start" "-a" "8ea9349c2d21f6848b289477fb04d7661fb42cf05596fccf7e9a8d6f424f0c85", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling twiml_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `is_content` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let mut is_content = false;
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_is_content` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_content` is never read
[INFO] [stdout]   --> src/lib.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 | ...                   is_content = true;
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.89s
[INFO] running `Command { std: "docker" "inspect" "8ea9349c2d21f6848b289477fb04d7661fb42cf05596fccf7e9a8d6f424f0c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ea9349c2d21f6848b289477fb04d7661fb42cf05596fccf7e9a8d6f424f0c85", kill_on_drop: false }`
[INFO] [stdout] 8ea9349c2d21f6848b289477fb04d7661fb42cf05596fccf7e9a8d6f424f0c85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15e9be3a74ce40ba249e6ef410401e011ff31f9d27075289b3856775f9061780
[INFO] running `Command { std: "docker" "start" "-a" "15e9be3a74ce40ba249e6ef410401e011ff31f9d27075289b3856775f9061780", kill_on_drop: false }`
[INFO] [stderr]    Compiling twiml_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `is_content` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let mut is_content = false;
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_is_content` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_content` is never read
[INFO] [stdout]   --> src/lib.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 | ...                   is_content = true;
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `is_content` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let mut is_content = false;
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_is_content` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_content` is never read
[INFO] [stdout]   --> src/lib.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 | ...                   is_content = true;
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "15e9be3a74ce40ba249e6ef410401e011ff31f9d27075289b3856775f9061780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15e9be3a74ce40ba249e6ef410401e011ff31f9d27075289b3856775f9061780", kill_on_drop: false }`
[INFO] [stdout] 15e9be3a74ce40ba249e6ef410401e011ff31f9d27075289b3856775f9061780