[INFO] fetching crate iaith 0.0.4-beta.1...
[INFO] checking iaith-0.0.4-beta.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate iaith 0.0.4-beta.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate iaith 0.0.4-beta.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iaith 0.0.4-beta.1
[INFO] finished tweaking crates.io crate iaith 0.0.4-beta.1
[INFO] tweaked toml for crates.io crate iaith 0.0.4-beta.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate iaith 0.0.4-beta.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f032abb6133eb0f0e1c8407d60c3a5ee1efdc0b04fba81e95fdc20d724157cfd
[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" "f032abb6133eb0f0e1c8407d60c3a5ee1efdc0b04fba81e95fdc20d724157cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f032abb6133eb0f0e1c8407d60c3a5ee1efdc0b04fba81e95fdc20d724157cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f032abb6133eb0f0e1c8407d60c3a5ee1efdc0b04fba81e95fdc20d724157cfd", kill_on_drop: false }`
[INFO] [stdout] f032abb6133eb0f0e1c8407d60c3a5ee1efdc0b04fba81e95fdc20d724157cfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] 853fc81207153b0c646433bf5c92228e7cbed0f0d15cef0dc9c86c1662ae79bb
[INFO] running `Command { std: "docker" "start" "-a" "853fc81207153b0c646433bf5c92228e7cbed0f0d15cef0dc9c86c1662ae79bb", kill_on_drop: false }`
[INFO] [stderr]     Checking iaith v0.0.4-beta.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/brainf.rs:183:25
[INFO] [stdout]     |
[INFO] [stdout] 183 |             _ => panic!(format!("Unexpected character, {}", c)),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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] 183 -             _ => panic!(format!("Unexpected character, {}", c)),
[INFO] [stdout] 183 +             _ => panic!("Unexpected character, {}", c),
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/brainf.rs:183:25
[INFO] [stdout]     |
[INFO] [stdout] 183 |             _ => panic!(format!("Unexpected character, {}", c)),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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] 183 -             _ => panic!(format!("Unexpected character, {}", c)),
[INFO] [stdout] 183 +             _ => panic!("Unexpected character, {}", c),
[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 0.86s
[INFO] running `Command { std: "docker" "inspect" "853fc81207153b0c646433bf5c92228e7cbed0f0d15cef0dc9c86c1662ae79bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "853fc81207153b0c646433bf5c92228e7cbed0f0d15cef0dc9c86c1662ae79bb", kill_on_drop: false }`
[INFO] [stdout] 853fc81207153b0c646433bf5c92228e7cbed0f0d15cef0dc9c86c1662ae79bb