[INFO] crate algs4 0.7.0 is already in cache
[INFO] checking algs4-0.7.0 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate algs4 0.7.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate algs4 0.7.0 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate algs4 0.7.0
[INFO] finished tweaking crates.io crate algs4 0.7.0
[INFO] tweaked toml for crates.io crate algs4 0.7.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (sdl2) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (sdl2_gfx) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: unused manifest key: dev-dependencies.sdl2.sdl2
[INFO] [stderr] warning: unused manifest key: dev-dependencies.sdl2_gfx.sdl2_gfx
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ef8b6261f8240aa9ddfb5b279ae6eb27a852333b126be562403c5fdfec4a1684
[INFO] running `"docker" "start" "-a" "ef8b6261f8240aa9ddfb5b279ae6eb27a852333b126be562403c5fdfec4a1684"`
[INFO] [stderr] warning: dependency (sdl2) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (sdl2_gfx) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: unused manifest key: dev-dependencies.sdl2.sdl2
[INFO] [stderr] warning: unused manifest key: dev-dependencies.sdl2_gfx.sdl2_gfx
[INFO] [stderr] error: multiple packages link to native library `SDL2`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `sdl2-sys v0.24.0`
[INFO] [stderr]     ... which is depended on by `sdl2 v0.24.0`
[INFO] [stderr]     ... which is depended on by `sdl2_gfx v0.24.0`
[INFO] [stderr]     ... which is depended on by `algs4 v0.7.0 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `SDL2`
[INFO] [stderr] 
[INFO] [stderr] package `sdl2-sys v0.33.0`
[INFO] [stderr]     ... which is depended on by `sdl2 v0.33.0`
[INFO] [stderr]     ... which is depended on by `algs4 v0.7.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `SDL2`
[INFO] running `"docker" "inspect" "ef8b6261f8240aa9ddfb5b279ae6eb27a852333b126be562403c5fdfec4a1684"`
[INFO] running `"docker" "rm" "-f" "ef8b6261f8240aa9ddfb5b279ae6eb27a852333b126be562403c5fdfec4a1684"`
[INFO] [stdout] ef8b6261f8240aa9ddfb5b279ae6eb27a852333b126be562403c5fdfec4a1684
