[INFO] fetching crate libpaprika 0.2.0...
[INFO] checking libpaprika-0.2.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate libpaprika 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libpaprika 0.2.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libpaprika 0.2.0
[INFO] finished tweaking crates.io crate libpaprika 0.2.0
[INFO] tweaked toml for crates.io crate libpaprika 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate libpaprika 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2dc99de84ba71a567ba71b2abc28f9193ca76959f7f1b2465b2366511a9ba1e
[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" "f2dc99de84ba71a567ba71b2abc28f9193ca76959f7f1b2465b2366511a9ba1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2dc99de84ba71a567ba71b2abc28f9193ca76959f7f1b2465b2366511a9ba1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2dc99de84ba71a567ba71b2abc28f9193ca76959f7f1b2465b2366511a9ba1e", kill_on_drop: false }`
[INFO] [stdout] f2dc99de84ba71a567ba71b2abc28f9193ca76959f7f1b2465b2366511a9ba1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] 139353b2722d7a96c8df0a5e4f26976c6dabeaba56a7c39b1d08e2e6f6d240ac
[INFO] running `Command { std: "docker" "start" "-a" "139353b2722d7a96c8df0a5e4f26976c6dabeaba56a7c39b1d08e2e6f6d240ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking podio v0.1.6
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking libpaprika v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/recipe.rs:77:29
[INFO] [stdout]    |
[INFO] [stdout] 77 |     assert!(result.is_ok(), true);
[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] 77 |     assert!(result.is_ok(), "{}", true);
[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 36.23s
[INFO] running `Command { std: "docker" "inspect" "139353b2722d7a96c8df0a5e4f26976c6dabeaba56a7c39b1d08e2e6f6d240ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "139353b2722d7a96c8df0a5e4f26976c6dabeaba56a7c39b1d08e2e6f6d240ac", kill_on_drop: false }`
[INFO] [stdout] 139353b2722d7a96c8df0a5e4f26976c6dabeaba56a7c39b1d08e2e6f6d240ac