[INFO] fetching crate wascc-actor 0.7.4...
[INFO] building wascc-actor-0.7.4 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate wascc-actor 0.7.4 into /workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wascc-actor 0.7.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 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" "+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] 6233c4021c03cd0bebd5b1ca530ce7107390b032ca13d5ca0a6f6ff4f613d6f7
[INFO] running `Command { std: "docker" "start" "-a" "6233c4021c03cd0bebd5b1ca530ce7107390b032ca13d5ca0a6f6ff4f613d6f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6233c4021c03cd0bebd5b1ca530ce7107390b032ca13d5ca0a6f6ff4f613d6f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6233c4021c03cd0bebd5b1ca530ce7107390b032ca13d5ca0a6f6ff4f613d6f7", kill_on_drop: false }`
[INFO] [stdout] 6233c4021c03cd0bebd5b1ca530ce7107390b032ca13d5ca0a6f6ff4f613d6f7
[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] 84ee6180d3154a8ef3953bb082ba0ef5f1fe4a6eeacac2fa391ee22527280821
[INFO] running `Command { std: "docker" "start" "-a" "84ee6180d3154a8ef3953bb082ba0ef5f1fe4a6eeacac2fa391ee22527280821", kill_on_drop: false }`
[INFO] [stderr]    Compiling wapc-guest v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling rmp v0.8.14
[INFO] [stderr]    Compiling rmp-serde v0.14.4
[INFO] [stderr]    Compiling wascc-codec v0.8.1
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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 5.35s
[INFO] running `Command { std: "docker" "inspect" "84ee6180d3154a8ef3953bb082ba0ef5f1fe4a6eeacac2fa391ee22527280821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ee6180d3154a8ef3953bb082ba0ef5f1fe4a6eeacac2fa391ee22527280821", kill_on_drop: false }`
[INFO] [stdout] 84ee6180d3154a8ef3953bb082ba0ef5f1fe4a6eeacac2fa391ee22527280821
[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] 0a50fbe43655ac534def4891afbda7427240fb5d86409ff84a80f3bd4b1763af
[INFO] running `Command { std: "docker" "start" "-a" "0a50fbe43655ac534def4891afbda7427240fb5d86409ff84a80f3bd4b1763af", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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 `test` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "0a50fbe43655ac534def4891afbda7427240fb5d86409ff84a80f3bd4b1763af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a50fbe43655ac534def4891afbda7427240fb5d86409ff84a80f3bd4b1763af", kill_on_drop: false }`
[INFO] [stdout] 0a50fbe43655ac534def4891afbda7427240fb5d86409ff84a80f3bd4b1763af