[INFO] cloning repository juliuscueto/rust_learning
[INFO] running `"git" "clone" "--bare" "git://github.com/juliuscueto/rust_learning.git" "work/cache/sources/gh/juliuscueto/rust_learning"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/juliuscueto/rust_learning'...
[INFO] running `"git" "clone" "work/cache/sources/gh/juliuscueto/rust_learning" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/juliuscueto/rust_learning"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/juliuscueto/rust_learning'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/juliuscueto/rust_learning" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/juliuscueto/rust_learning"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/juliuscueto/rust_learning'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7792d3b09021a89379d486b32408548cd3507c67
[INFO] sha for GitHub repo juliuscueto/rust_learning: 7792d3b09021a89379d486b32408548cd3507c67
[INFO] validating manifest of juliuscueto/rust_learning on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of juliuscueto/rust_learning on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing juliuscueto/rust_learning
[INFO] finished frobbing juliuscueto/rust_learning
[INFO] frobbed toml for juliuscueto/rust_learning written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/juliuscueto/rust_learning/Cargo.toml
[INFO] started frobbing juliuscueto/rust_learning
[INFO] finished frobbing juliuscueto/rust_learning
[INFO] frobbed toml for juliuscueto/rust_learning written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/juliuscueto/rust_learning/Cargo.toml
[INFO] crate juliuscueto/rust_learning has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking juliuscueto/rust_learning against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-7/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/juliuscueto/rust_learning:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a6c79104347fc828ce39542d69e2334be82954a47426597d3a0d3d8c5e7d5d87
[INFO] running `"docker" "start" "-a" "a6c79104347fc828ce39542d69e2334be82954a47426597d3a0d3d8c5e7d5d87"`
[INFO] [stderr]     Checking learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "a6c79104347fc828ce39542d69e2334be82954a47426597d3a0d3d8c5e7d5d87"`
[INFO] running `"docker" "rm" "-f" "a6c79104347fc828ce39542d69e2334be82954a47426597d3a0d3d8c5e7d5d87"`
[INFO] [stdout] a6c79104347fc828ce39542d69e2334be82954a47426597d3a0d3d8c5e7d5d87