[INFO] fetching crate yarr-riscv 0.0.0...
[INFO] checking yarr-riscv-0.0.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate yarr-riscv 0.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate yarr-riscv 0.0.0
[INFO] finished tweaking crates.io crate yarr-riscv 0.0.0
[INFO] tweaked toml for crates.io crate yarr-riscv 0.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate yarr-riscv 0.0.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding riscv v0.10.1 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf333e69ed8ba537a6950416f5bfbafdd32e9e39d2755edc5019d3ecef3d80f3
[INFO] running `Command { std: "docker" "start" "-a" "cf333e69ed8ba537a6950416f5bfbafdd32e9e39d2755edc5019d3ecef3d80f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf333e69ed8ba537a6950416f5bfbafdd32e9e39d2755edc5019d3ecef3d80f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf333e69ed8ba537a6950416f5bfbafdd32e9e39d2755edc5019d3ecef3d80f3", kill_on_drop: false }`
[INFO] [stdout] cf333e69ed8ba537a6950416f5bfbafdd32e9e39d2755edc5019d3ecef3d80f3
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1658546a9c0d4b9cea557095f08ea86c7b71e8158f0f3c502582d5d9c7d351a
[INFO] running `Command { std: "docker" "start" "-a" "a1658546a9c0d4b9cea557095f08ea86c7b71e8158f0f3c502582d5d9c7d351a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling riscv v0.10.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking yarr-common v0.0.0
[INFO] [stderr]     Checking yarr-riscv v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `time::machine_time`
[INFO] [stdout]  --> src/syscall.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     time::machine_time,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::machine_time`
[INFO] [stdout]  --> src/syscall.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     time::machine_time,
[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 2.04s
[INFO] running `Command { std: "docker" "inspect" "a1658546a9c0d4b9cea557095f08ea86c7b71e8158f0f3c502582d5d9c7d351a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1658546a9c0d4b9cea557095f08ea86c7b71e8158f0f3c502582d5d9c7d351a", kill_on_drop: false }`
[INFO] [stdout] a1658546a9c0d4b9cea557095f08ea86c7b71e8158f0f3c502582d5d9c7d351a