[INFO] updating cached repository arifai/Software-Engineering-School
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arifai/Software-Engineering-School
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arifai/Software-Engineering-School" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/arifai/Software-Engineering-School"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/arifai/Software-Engineering-School'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  73% (764/1043)   
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Checking out files: 100% (1043/1043), done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arifai/Software-Engineering-School" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/arifai/Software-Engineering-School"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/arifai/Software-Engineering-School'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  73% (763/1043)   
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Checking out files: 100% (1043/1043), done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f81606a426c9300660d7fc2515431b033473e490
[INFO] sha for GitHub repo arifai/Software-Engineering-School: f81606a426c9300660d7fc2515431b033473e490
[INFO] validating manifest of arifai/Software-Engineering-School on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of arifai/Software-Engineering-School on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing arifai/Software-Engineering-School
[INFO] finished frobbing arifai/Software-Engineering-School
[INFO] frobbed toml for arifai/Software-Engineering-School written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/arifai/Software-Engineering-School/Cargo.toml
[INFO] started frobbing arifai/Software-Engineering-School
[INFO] finished frobbing arifai/Software-Engineering-School
[INFO] frobbed toml for arifai/Software-Engineering-School written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/arifai/Software-Engineering-School/Cargo.toml
[INFO] crate arifai/Software-Engineering-School already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking arifai/Software-Engineering-School against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-3/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/arifai/Software-Engineering-School:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a0ee68518147be60c16bb3ec3acd38208d706456abed7851ff8230cf2cb08076
[INFO] running `"docker" "start" "-a" "a0ee68518147be60c16bb3ec3acd38208d706456abed7851ff8230cf2cb08076"`
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking serde v1.0.88
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking notify v4.0.9
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking rocket_http v0.4.0
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]    Compiling rocket_codegen v0.4.0
[INFO] [stderr]     Checking rocket v0.4.0
[INFO] [stderr]     Checking rocket_contrib v0.4.0
[INFO] [stderr]     Checking sesreg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `serde_json::Value`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use serde_json::Value;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::Value`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use serde_json::Value;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.40s
[INFO] running `"docker" "inspect" "a0ee68518147be60c16bb3ec3acd38208d706456abed7851ff8230cf2cb08076"`
[INFO] running `"docker" "rm" "-f" "a0ee68518147be60c16bb3ec3acd38208d706456abed7851ff8230cf2cb08076"`
[INFO] [stdout] a0ee68518147be60c16bb3ec3acd38208d706456abed7851ff8230cf2cb08076