[INFO] fetching crate wascc-actor 0.7.4...
[INFO] checking wascc-actor-0.7.4 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate wascc-actor 0.7.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate wascc-actor 0.7.4
[INFO] finished tweaking crates.io crate wascc-actor 0.7.4
[INFO] tweaked toml for crates.io crate wascc-actor 0.7.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wascc-actor 0.7.4 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding wapc-guest v0.3.2 (available: v1.2.0)
[INFO] [stderr]       Adding wascc-codec v0.8.1 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 882c96d3dc8375f97e4e1cae3e51ffe043eca59ad6789af290993a8b6664fc79
[INFO] running `Command { std: "docker" "start" "-a" "882c96d3dc8375f97e4e1cae3e51ffe043eca59ad6789af290993a8b6664fc79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "882c96d3dc8375f97e4e1cae3e51ffe043eca59ad6789af290993a8b6664fc79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "882c96d3dc8375f97e4e1cae3e51ffe043eca59ad6789af290993a8b6664fc79", kill_on_drop: false }`
[INFO] [stdout] 882c96d3dc8375f97e4e1cae3e51ffe043eca59ad6789af290993a8b6664fc79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79b92aa6c9fb578e59328a26cc5dacce5546a0fa98b541917f02fca3876978f3
[INFO] running `Command { std: "docker" "start" "-a" "79b92aa6c9fb578e59328a26cc5dacce5546a0fa98b541917f02fca3876978f3", kill_on_drop: false }`
[INFO] [stderr]     Checking rmp v0.8.14
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking wapc-guest v0.3.2
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]     Checking wascc-codec v0.8.1
[INFO] [stderr]     Checking wascc-actor v0.7.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/logger.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         { Arc::new(RwLock::new("default".to_string())) };
[INFO] [stdout]    |         ^^                                            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 19 -         { Arc::new(RwLock::new("default".to_string())) };
[INFO] [stdout] 19 +         Arc::new(RwLock::new("default".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/logger.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         { Arc::new(RwLock::new("default".to_string())) };
[INFO] [stdout]    |         ^^                                            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 19 -         { Arc::new(RwLock::new("default".to_string())) };
[INFO] [stdout] 19 +         Arc::new(RwLock::new("default".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.98s
[INFO] running `Command { std: "docker" "inspect" "79b92aa6c9fb578e59328a26cc5dacce5546a0fa98b541917f02fca3876978f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79b92aa6c9fb578e59328a26cc5dacce5546a0fa98b541917f02fca3876978f3", kill_on_drop: false }`
[INFO] [stdout] 79b92aa6c9fb578e59328a26cc5dacce5546a0fa98b541917f02fca3876978f3