[INFO] fetching crate noco 0.1.5...
[INFO] building noco-0.1.5 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate noco 0.1.5 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate noco 0.1.5
[INFO] finished tweaking crates.io crate noco 0.1.5
[INFO] tweaked toml for crates.io crate noco 0.1.5 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate noco 0.1.5 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8149b8892230bcca1d39d98351ec5674d6aee51f89b9fcefa8e6165f0454ead2
[INFO] running `Command { std: "docker" "start" "-a" "8149b8892230bcca1d39d98351ec5674d6aee51f89b9fcefa8e6165f0454ead2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8149b8892230bcca1d39d98351ec5674d6aee51f89b9fcefa8e6165f0454ead2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8149b8892230bcca1d39d98351ec5674d6aee51f89b9fcefa8e6165f0454ead2", kill_on_drop: false }`
[INFO] [stdout] 8149b8892230bcca1d39d98351ec5674d6aee51f89b9fcefa8e6165f0454ead2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21a35ad7cbac4845d7d834516c29504bd7bc2831826be23c99bbbeb932fdfe2f
[INFO] running `Command { std: "docker" "start" "-a" "21a35ad7cbac4845d7d834516c29504bd7bc2831826be23c99bbbeb932fdfe2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling noco v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tt`
[INFO] [stdout]    --> src/macro_lib.rs:260:34
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn unexpected(&mut self, tt: TokenTree) -> &mut Self {
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_tt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/macro_lib.rs:253:59
[INFO] [stdout]     |
[INFO] [stdout] 253 |     pub fn error_span<T: Into<String>>(&mut self, msg: T, span: Span) -> &mut Self {
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "21a35ad7cbac4845d7d834516c29504bd7bc2831826be23c99bbbeb932fdfe2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21a35ad7cbac4845d7d834516c29504bd7bc2831826be23c99bbbeb932fdfe2f", kill_on_drop: false }`
[INFO] [stdout] 21a35ad7cbac4845d7d834516c29504bd7bc2831826be23c99bbbeb932fdfe2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2772c86c9d4848f00c2fd6b717b03aad08f11d5a67408a91b0c13a295732edc
[INFO] running `Command { std: "docker" "start" "-a" "f2772c86c9d4848f00c2fd6b717b03aad08f11d5a67408a91b0c13a295732edc", kill_on_drop: false }`
[INFO] [stderr]    Compiling noco v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tt`
[INFO] [stdout]    --> src/macro_lib.rs:260:34
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn unexpected(&mut self, tt: TokenTree) -> &mut Self {
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_tt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/macro_lib.rs:253:59
[INFO] [stdout]     |
[INFO] [stdout] 253 |     pub fn error_span<T: Into<String>>(&mut self, msg: T, span: Span) -> &mut Self {
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tt`
[INFO] [stdout]    --> src/macro_lib.rs:260:34
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn unexpected(&mut self, tt: TokenTree) -> &mut Self {
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_tt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/macro_lib.rs:253:59
[INFO] [stdout]     |
[INFO] [stdout] 253 |     pub fn error_span<T: Into<String>>(&mut self, msg: T, span: Span) -> &mut Self {
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "f2772c86c9d4848f00c2fd6b717b03aad08f11d5a67408a91b0c13a295732edc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2772c86c9d4848f00c2fd6b717b03aad08f11d5a67408a91b0c13a295732edc", kill_on_drop: false }`
[INFO] [stdout] f2772c86c9d4848f00c2fd6b717b03aad08f11d5a67408a91b0c13a295732edc