[INFO] updating cached repository skade/rust-three-days-course
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/skade/rust-three-days-course
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/skade/rust-three-days-course" "work/ex/beta-1.38-1/sources/1.37.0/gh/skade/rust-three-days-course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/skade/rust-three-days-course'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/skade/rust-three-days-course" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skade/rust-three-days-course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skade/rust-three-days-course'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 95e1516ecaff38e90d1613917a3e25415e7726fd
[INFO] sha for GitHub repo skade/rust-three-days-course: 95e1516ecaff38e90d1613917a3e25415e7726fd
[INFO] validating manifest of skade/rust-three-days-course on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of skade/rust-three-days-course on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing skade/rust-three-days-course
[INFO] finished frobbing skade/rust-three-days-course
[INFO] frobbed toml for skade/rust-three-days-course written to work/ex/beta-1.38-1/sources/1.37.0/gh/skade/rust-three-days-course/Cargo.toml
[INFO] started frobbing skade/rust-three-days-course
[INFO] finished frobbing skade/rust-three-days-course
[INFO] frobbed toml for skade/rust-three-days-course written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skade/rust-three-days-course/Cargo.toml
[INFO] crate skade/rust-three-days-course already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing skade/rust-three-days-course against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/skade/rust-three-days-course:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e57b46b7b5fb8c326717bfe7fa20dc6ff9fc8d1e87c7dd4d633bb9bc35789cbb
[INFO] running `"docker" "start" "-a" "e57b46b7b5fb8c326717bfe7fa20dc6ff9fc8d1e87c7dd4d633bb9bc35789cbb"`
[INFO] [stderr]    Compiling serde v0.9.12
[INFO] [stderr]    Compiling shells v0.2.0
[INFO] [stderr]    Compiling syn v0.11.9
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.12
[INFO] [stderr]    Compiling serde_json v0.9.9
[INFO] [stderr]    Compiling pandoc_types v0.1.0
[INFO] [stderr]    Compiling tasks v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.23s
[INFO] running `"docker" "inspect" "e57b46b7b5fb8c326717bfe7fa20dc6ff9fc8d1e87c7dd4d633bb9bc35789cbb"`
[INFO] running `"docker" "rm" "-f" "e57b46b7b5fb8c326717bfe7fa20dc6ff9fc8d1e87c7dd4d633bb9bc35789cbb"`
[INFO] [stdout] e57b46b7b5fb8c326717bfe7fa20dc6ff9fc8d1e87c7dd4d633bb9bc35789cbb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/skade/rust-three-days-course:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 60805115b9c2db1025719e9e7bd963abafa59346867e9de4cc96a45219127de8
[INFO] running `"docker" "start" "-a" "60805115b9c2db1025719e9e7bd963abafa59346867e9de4cc96a45219127de8"`
[INFO] [stderr]    Compiling tasks v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `"docker" "inspect" "60805115b9c2db1025719e9e7bd963abafa59346867e9de4cc96a45219127de8"`
[INFO] running `"docker" "rm" "-f" "60805115b9c2db1025719e9e7bd963abafa59346867e9de4cc96a45219127de8"`
[INFO] [stdout] 60805115b9c2db1025719e9e7bd963abafa59346867e9de4cc96a45219127de8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/skade/rust-three-days-course:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] f3382d9f6d9c753702c02f2d0de9796b2cf8453b76905a4ec6ac7c8cec422716
[INFO] running `"docker" "start" "-a" "f3382d9f6d9c753702c02f2d0de9796b2cf8453b76905a4ec6ac7c8cec422716"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tasks-908b942a94b548d6
[INFO] [stderr]      Running /opt/crater/target/debug/deps/add_chapter-8f23f051f701397c
[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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/add_code_example-e5e5e82aded56e19
[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] [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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/build_indices-3df9e0f98eef5292
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/extract_code-496e09573acb1861
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rename_chapter-c1af261b3155d6e7
[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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rename_chapters-5c9f1375c9c712d1
[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] [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] [stderr]    Doc-tests tasks
[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" "f3382d9f6d9c753702c02f2d0de9796b2cf8453b76905a4ec6ac7c8cec422716"`
[INFO] running `"docker" "rm" "-f" "f3382d9f6d9c753702c02f2d0de9796b2cf8453b76905a4ec6ac7c8cec422716"`
[INFO] [stdout] f3382d9f6d9c753702c02f2d0de9796b2cf8453b76905a4ec6ac7c8cec422716