[INFO] fetching crate rusty-leveldb-arc 2.0.0...
[INFO] checking rusty-leveldb-arc-2.0.0 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate rusty-leveldb-arc 2.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rusty-leveldb-arc 2.0.0 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusty-leveldb-arc 2.0.0
[INFO] finished tweaking crates.io crate rusty-leveldb-arc 2.0.0
[INFO] tweaked toml for crates.io crate rusty-leveldb-arc 2.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 51 packages to latest compatible versions
[INFO] [stderr]       Adding crc v1.8.1 (available: v3.2.1)
[INFO] [stderr]       Adding errno v0.2.8 (available: v0.3.9)
[INFO] [stderr]       Adding integer-encoding v3.0.4 (available: v4.0.2)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.8.5)
[INFO] [stderr]       Adding time-test v0.2.3 (available: v0.3.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1262b3eeb9eac856c709177d772f9c878b27f2d7fbfc496e473700176c7452f9
[INFO] running `Command { std: "docker" "start" "-a" "1262b3eeb9eac856c709177d772f9c878b27f2d7fbfc496e473700176c7452f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1262b3eeb9eac856c709177d772f9c878b27f2d7fbfc496e473700176c7452f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1262b3eeb9eac856c709177d772f9c878b27f2d7fbfc496e473700176c7452f9", kill_on_drop: false }`
[INFO] [stdout] 1262b3eeb9eac856c709177d772f9c878b27f2d7fbfc496e473700176c7452f9
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8cf260c7eead8019b8081ef5c071ece50aa6460f0d1772bca9eb4062661124f
[INFO] running `Command { std: "docker" "start" "-a" "b8cf260c7eead8019b8081ef5c071ece50aa6460f0d1772bca9eb4062661124f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]     Checking integer-encoding v3.0.4
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]    Compiling syn v2.0.89
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking time-test v0.2.3
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rusty-leveldb-arc v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Arc`
[INFO] [stdout]   --> src/benches/maps_bench.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut skm = SkipMap::new(Arc::new(Box::new(DefaultCmp)));
[INFO] [stdout]    |                                ^^^ use of undeclared type `Arc`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 9  + use std::sync::Arc;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-leveldb-arc` (bench "maps_bench") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b8cf260c7eead8019b8081ef5c071ece50aa6460f0d1772bca9eb4062661124f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8cf260c7eead8019b8081ef5c071ece50aa6460f0d1772bca9eb4062661124f", kill_on_drop: false }`
[INFO] [stdout] b8cf260c7eead8019b8081ef5c071ece50aa6460f0d1772bca9eb4062661124f