[INFO] fetching crate sapp-linux 0.1.12...
[INFO] checking sapp-linux-0.1.12 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate sapp-linux 0.1.12 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sapp-linux 0.1.12 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sapp-linux 0.1.12
[INFO] finished tweaking crates.io crate sapp-linux 0.1.12
[INFO] tweaked toml for crates.io crate sapp-linux 0.1.12 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e5396a1d6361d5b0788fe7f16dddeb9541e11815e81b9586f75b3e50173a5f6
[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" "5e5396a1d6361d5b0788fe7f16dddeb9541e11815e81b9586f75b3e50173a5f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e5396a1d6361d5b0788fe7f16dddeb9541e11815e81b9586f75b3e50173a5f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e5396a1d6361d5b0788fe7f16dddeb9541e11815e81b9586f75b3e50173a5f6", kill_on_drop: false }`
[INFO] [stdout] 5e5396a1d6361d5b0788fe7f16dddeb9541e11815e81b9586f75b3e50173a5f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 225b401a74988b0fab42ebef91a856a21563d20279b3589a7e4b4425562cbaef
[INFO] running `Command { std: "docker" "start" "-a" "225b401a74988b0fab42ebef91a856a21563d20279b3589a7e4b4425562cbaef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling sapp-linux v0.1.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]  --> build.rs:4:63
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let target = env::var("TARGET").unwrap_or_else(|e| panic!(e));
[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] 4 |     let target = env::var("TARGET").unwrap_or_else(|e| panic!("{}", e));
[INFO] [stdout]   |                                                               ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let target = env::var("TARGET").unwrap_or_else(|e| std::panic::panic_any(e));
[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 3.96s
[INFO] running `Command { std: "docker" "inspect" "225b401a74988b0fab42ebef91a856a21563d20279b3589a7e4b4425562cbaef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "225b401a74988b0fab42ebef91a856a21563d20279b3589a7e4b4425562cbaef", kill_on_drop: false }`
[INFO] [stdout] 225b401a74988b0fab42ebef91a856a21563d20279b3589a7e4b4425562cbaef