[INFO] fetching crate rusty-leveldb 0.3.5...
[INFO] checking rusty-leveldb-0.3.5 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate rusty-leveldb 0.3.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rusty-leveldb 0.3.5 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusty-leveldb 0.3.5
[INFO] finished tweaking crates.io crate rusty-leveldb 0.3.5
[INFO] tweaked toml for crates.io crate rusty-leveldb 0.3.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 040b68d36c62d77eefeb1ac0f9e713d58f996ee6ea290c9ce47195603d18ed32
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "040b68d36c62d77eefeb1ac0f9e713d58f996ee6ea290c9ce47195603d18ed32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "040b68d36c62d77eefeb1ac0f9e713d58f996ee6ea290c9ce47195603d18ed32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "040b68d36c62d77eefeb1ac0f9e713d58f996ee6ea290c9ce47195603d18ed32", kill_on_drop: false }`
[INFO] [stdout] 040b68d36c62d77eefeb1ac0f9e713d58f996ee6ea290c9ce47195603d18ed32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 74520323ad96bce8bd05b79f33f9a5107f41242105a621eeaf80b54f26d948c8
[INFO] running `Command { std: "docker" "start" "-a" "74520323ad96bce8bd05b79f33f9a5107f41242105a621eeaf80b54f26d948c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling snap v1.0.4
[INFO] [stderr]     Checking integer-encoding v1.1.7
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking time-test v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rusty-leveldb v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/filter_block.rs:242:21
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     format!("{} {:?} ", block_offset, key)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     "{} {:?} ", block_offset, key
[INFO] [stdout]     |                    --                           --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.35s
[INFO] running `Command { std: "docker" "inspect" "74520323ad96bce8bd05b79f33f9a5107f41242105a621eeaf80b54f26d948c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74520323ad96bce8bd05b79f33f9a5107f41242105a621eeaf80b54f26d948c8", kill_on_drop: false }`
[INFO] [stdout] 74520323ad96bce8bd05b79f33f9a5107f41242105a621eeaf80b54f26d948c8