[INFO] cloning repository https://github.com/rayrobdod/png-inflate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rayrobdod/png-inflate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayrobdod%2Fpng-inflate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayrobdod%2Fpng-inflate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5160046ea69260375747c7254b5e87c31335a938
[INFO] checking rayrobdod/png-inflate against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayrobdod%2Fpng-inflate" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rayrobdod/png-inflate on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rayrobdod/png-inflate
[INFO] finished tweaking git repo https://github.com/rayrobdod/png-inflate
[INFO] tweaked toml for git repo https://github.com/rayrobdod/png-inflate written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/rayrobdod/png-inflate already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomicwrites v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf5c3866be8c0c6a4678a49432412ed19d40fd0b2f72a7c8085d0163e7783479
[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" "bf5c3866be8c0c6a4678a49432412ed19d40fd0b2f72a7c8085d0163e7783479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf5c3866be8c0c6a4678a49432412ed19d40fd0b2f72a7c8085d0163e7783479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf5c3866be8c0c6a4678a49432412ed19d40fd0b2f72a7c8085d0163e7783479", kill_on_drop: false }`
[INFO] [stdout] bf5c3866be8c0c6a4678a49432412ed19d40fd0b2f72a7c8085d0163e7783479
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98848c85052dc27fc2d171591d6c618a20ce5bf89e3197de96bfb6f9cc12a4e4
[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" "98848c85052dc27fc2d171591d6c618a20ce5bf89e3197de96bfb6f9cc12a4e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling png_inflate_derive v0.0.0-SNAPSHOT (/opt/rustwide/workdir/lib/png_inflate_derive)
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking atomicwrites v0.3.0
[INFO] [stderr]     Checking png_inflate v0.0.0-SNAPSHOT (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `SNG` not defined
[INFO] [stdout]   --> tests/semantics.rs:13:22
[INFO] [stdout]    |
[INFO] [stdout] 13 | const SNG_EXE:&str = env!("SNG");
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `png_inflate`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "98848c85052dc27fc2d171591d6c618a20ce5bf89e3197de96bfb6f9cc12a4e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98848c85052dc27fc2d171591d6c618a20ce5bf89e3197de96bfb6f9cc12a4e4", kill_on_drop: false }`
[INFO] [stdout] 98848c85052dc27fc2d171591d6c618a20ce5bf89e3197de96bfb6f9cc12a4e4