[INFO] updating cached repository jiegec/classroom-helper
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jiegec/classroom-helper
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jiegec/classroom-helper" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jiegec/classroom-helper"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jiegec/classroom-helper'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jiegec/classroom-helper" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jiegec/classroom-helper"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jiegec/classroom-helper'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7918d8c8525d6a6f9bf530d70bc977731614e3dc
[INFO] sha for GitHub repo jiegec/classroom-helper: 7918d8c8525d6a6f9bf530d70bc977731614e3dc
[INFO] validating manifest of jiegec/classroom-helper on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jiegec/classroom-helper on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jiegec/classroom-helper
[INFO] finished frobbing jiegec/classroom-helper
[INFO] frobbed toml for jiegec/classroom-helper written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jiegec/classroom-helper/Cargo.toml
[INFO] started frobbing jiegec/classroom-helper
[INFO] finished frobbing jiegec/classroom-helper
[INFO] frobbed toml for jiegec/classroom-helper written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jiegec/classroom-helper/Cargo.toml
[INFO] crate jiegec/classroom-helper already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jiegec/classroom-helper against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jiegec/classroom-helper:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fd359107780a1849a31f810b863a03ce02dc44eb016ffbd72d22506a8ff61657
[INFO] running `"docker" "start" "-a" "fd359107780a1849a31f810b863a03ce02dc44eb016ffbd72d22506a8ff61657"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]     Checking tui v0.5.1
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking regex v1.1.7
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking bstr v0.2.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking classroom-helper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.79s
[INFO] running `"docker" "inspect" "fd359107780a1849a31f810b863a03ce02dc44eb016ffbd72d22506a8ff61657"`
[INFO] running `"docker" "rm" "-f" "fd359107780a1849a31f810b863a03ce02dc44eb016ffbd72d22506a8ff61657"`
[INFO] [stdout] fd359107780a1849a31f810b863a03ce02dc44eb016ffbd72d22506a8ff61657