[INFO] updating cached repository gyaresu/rust_lessons
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gyaresu/rust_lessons
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gyaresu/rust_lessons" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/gyaresu/rust_lessons"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/gyaresu/rust_lessons'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gyaresu/rust_lessons" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gyaresu/rust_lessons"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gyaresu/rust_lessons'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 001ba4d4e2808064e24bc002888321be4e5893c4
[INFO] sha for GitHub repo gyaresu/rust_lessons: 001ba4d4e2808064e24bc002888321be4e5893c4
[INFO] validating manifest of gyaresu/rust_lessons on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gyaresu/rust_lessons on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gyaresu/rust_lessons
[INFO] finished frobbing gyaresu/rust_lessons
[INFO] frobbed toml for gyaresu/rust_lessons written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/gyaresu/rust_lessons/Cargo.toml
[INFO] started frobbing gyaresu/rust_lessons
[INFO] finished frobbing gyaresu/rust_lessons
[INFO] frobbed toml for gyaresu/rust_lessons written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gyaresu/rust_lessons/Cargo.toml
[INFO] crate gyaresu/rust_lessons has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gyaresu/rust_lessons against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gyaresu/rust_lessons:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 9eaaeb6e3329a08971e2e5fa6143ab91e4379533128d6fb2519d935c69a83f8d
[INFO] running `"docker" "start" "-a" "9eaaeb6e3329a08971e2e5fa6143ab91e4379533128d6fb2519d935c69a83f8d"`
[INFO] [stderr]    Compiling rust_lessons v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `"docker" "inspect" "9eaaeb6e3329a08971e2e5fa6143ab91e4379533128d6fb2519d935c69a83f8d"`
[INFO] running `"docker" "rm" "-f" "9eaaeb6e3329a08971e2e5fa6143ab91e4379533128d6fb2519d935c69a83f8d"`
[INFO] [stdout] 9eaaeb6e3329a08971e2e5fa6143ab91e4379533128d6fb2519d935c69a83f8d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gyaresu/rust_lessons:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] a5d89af03029124cd4aecd008a73d0b49972c29c8c059a678c9d8d9ff7030342
[INFO] running `"docker" "start" "-a" "a5d89af03029124cd4aecd008a73d0b49972c29c8c059a678c9d8d9ff7030342"`
[INFO] [stderr]    Compiling rust_lessons v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "a5d89af03029124cd4aecd008a73d0b49972c29c8c059a678c9d8d9ff7030342"`
[INFO] running `"docker" "rm" "-f" "a5d89af03029124cd4aecd008a73d0b49972c29c8c059a678c9d8d9ff7030342"`
[INFO] [stdout] a5d89af03029124cd4aecd008a73d0b49972c29c8c059a678c9d8d9ff7030342
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gyaresu/rust_lessons:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 0bbb7fd3ce6047874b19574ef040d04cb330739d6e817d3292c851bd64dda00e
[INFO] running `"docker" "start" "-a" "0bbb7fd3ce6047874b19574ef040d04cb330739d6e817d3292c851bd64dda00e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_lessons-130dccfa690f2e08
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0bbb7fd3ce6047874b19574ef040d04cb330739d6e817d3292c851bd64dda00e"`
[INFO] running `"docker" "rm" "-f" "0bbb7fd3ce6047874b19574ef040d04cb330739d6e817d3292c851bd64dda00e"`
[INFO] [stdout] 0bbb7fd3ce6047874b19574ef040d04cb330739d6e817d3292c851bd64dda00e