[INFO] fetching crate portal-jsc-swift-backend 0.8.0-pre.0...
[INFO] checking portal-jsc-swift-backend-0.8.0-pre.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate portal-jsc-swift-backend 0.8.0-pre.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate portal-jsc-swift-backend 0.8.0-pre.0
[INFO] finished tweaking crates.io crate portal-jsc-swift-backend 0.8.0-pre.0
[INFO] tweaked toml for crates.io crate portal-jsc-swift-backend 0.8.0-pre.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate portal-jsc-swift-backend 0.8.0-pre.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate portal-jsc-swift-backend 0.8.0-pre.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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded portal-jsc-mob-backend-common v0.8.0-pre.0
[INFO] [stderr]   Downloaded symbolism v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec647fabf3bed84ab6b5e576a1188ea67bff18352a12c65161f60b3e8f7e377b
[INFO] running `Command { std: "docker" "start" "-a" "ec647fabf3bed84ab6b5e576a1188ea67bff18352a12c65161f60b3e8f7e377b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec647fabf3bed84ab6b5e576a1188ea67bff18352a12c65161f60b3e8f7e377b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec647fabf3bed84ab6b5e576a1188ea67bff18352a12c65161f60b3e8f7e377b", kill_on_drop: false }`
[INFO] [stdout] ec647fabf3bed84ab6b5e576a1188ea67bff18352a12c65161f60b3e8f7e377b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 948fb66f39c645bae8cd46778fd987b368fdda84cd33059865e4bd7230e836db
[INFO] running `Command { std: "docker" "start" "-a" "948fb66f39c645bae8cd46778fd987b368fdda84cd33059865e4bd7230e836db", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking portal-jsc-mob-backend-common v0.8.0-pre.0
[INFO] [stderr]     Checking symbolism v0.1.0
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking portal-jsc-swift-backend v0.8.0-pre.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `String`, `sync::Arc`, and `vec::Vec`
[INFO] [stdout]   --> src/lib.rs:8:14
[INFO] [stdout]    |
[INFO] [stdout]  8 |     string::{String, ToString},
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout]  9 |     sync::Arc,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 10 |     vec::Vec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `String`, `sync::Arc`, and `vec::Vec`
[INFO] [stdout]   --> src/lib.rs:8:14
[INFO] [stdout]    |
[INFO] [stdout]  8 |     string::{String, ToString},
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout]  9 |     sync::Arc,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 10 |     vec::Vec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "948fb66f39c645bae8cd46778fd987b368fdda84cd33059865e4bd7230e836db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "948fb66f39c645bae8cd46778fd987b368fdda84cd33059865e4bd7230e836db", kill_on_drop: false }`
[INFO] [stdout] 948fb66f39c645bae8cd46778fd987b368fdda84cd33059865e4bd7230e836db