[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] f6c7bbc54fd13d0a9e678a35f45caf0bed7acb33
[INFO] checking rayrobdod/png-inflate against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayrobdod%2Fpng-inflate" "/workspace/builds/worker-74/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-74/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rayrobdod/png-inflate on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-74/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cd118705339af3846b175e52e9a29160be6329ec3f75fb787c570af6d9cd2aa
[INFO] running `Command { std: "docker" "start" "-a" "3cd118705339af3846b175e52e9a29160be6329ec3f75fb787c570af6d9cd2aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cd118705339af3846b175e52e9a29160be6329ec3f75fb787c570af6d9cd2aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd118705339af3846b175e52e9a29160be6329ec3f75fb787c570af6d9cd2aa", kill_on_drop: false }`
[INFO] [stdout] 3cd118705339af3846b175e52e9a29160be6329ec3f75fb787c570af6d9cd2aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e2832f841641ae1e98d538513b07998378401179758e224fcb03e9db7392815
[INFO] running `Command { std: "docker" "start" "-a" "1e2832f841641ae1e98d538513b07998378401179758e224fcb03e9db7392815", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling png_inflate_derive v0.0.0-SNAPSHOT (/opt/rustwide/workdir/lib/png_inflate_derive)
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[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 the macro `env` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `png_inflate` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1e2832f841641ae1e98d538513b07998378401179758e224fcb03e9db7392815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e2832f841641ae1e98d538513b07998378401179758e224fcb03e9db7392815", kill_on_drop: false }`
[INFO] [stdout] 1e2832f841641ae1e98d538513b07998378401179758e224fcb03e9db7392815