[INFO] fetching crate parse_cfg 2.0.0...
[INFO] checking parse_cfg-2.0.0 against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] extracting crate parse_cfg 2.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate parse_cfg 2.0.0 on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parse_cfg 2.0.0
[INFO] finished tweaking crates.io crate parse_cfg 2.0.0
[INFO] tweaked toml for crates.io crate parse_cfg 2.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", 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] 7e12a3d3e9649fe62b7d81e7c4ac2254d56f2b210b1b1aa6f2e6e2ec66f67ada
[INFO] running `Command { std: "docker" "start" "-a" "7e12a3d3e9649fe62b7d81e7c4ac2254d56f2b210b1b1aa6f2e6e2ec66f67ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e12a3d3e9649fe62b7d81e7c4ac2254d56f2b210b1b1aa6f2e6e2ec66f67ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e12a3d3e9649fe62b7d81e7c4ac2254d56f2b210b1b1aa6f2e6e2ec66f67ada", kill_on_drop: false }`
[INFO] [stdout] 7e12a3d3e9649fe62b7d81e7c4ac2254d56f2b210b1b1aa6f2e6e2ec66f67ada
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92193a18d2aabc7579ebf2aadc82ab1e3d48caf26e02cc17aca7263a0b37243f
[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" "92193a18d2aabc7579ebf2aadc82ab1e3d48caf26e02cc17aca7263a0b37243f", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking parse_cfg v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:209:42
[INFO] [stdout]     |
[INFO] [stdout] 209 |         assert!(parse_target(t).is_ok(), t);
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 209 |         assert!(parse_target(t).is_ok(), "{}", t);
[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 2.35s
[INFO] running `Command { std: "docker" "inspect" "92193a18d2aabc7579ebf2aadc82ab1e3d48caf26e02cc17aca7263a0b37243f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92193a18d2aabc7579ebf2aadc82ab1e3d48caf26e02cc17aca7263a0b37243f", kill_on_drop: false }`
[INFO] [stdout] 92193a18d2aabc7579ebf2aadc82ab1e3d48caf26e02cc17aca7263a0b37243f