[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-1.37-6/sources/1.36.0/gh/skade/rust-three-days-course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/gh/skade/rust-three-days-course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of skade/rust-three-days-course on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing skade/rust-three-days-course against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 3c2f454cf8c3aecf41abfd047ac0d89eddac69ba8d3ba149f1e199ff0403e641
[INFO] running `"docker" "start" "-a" "3c2f454cf8c3aecf41abfd047ac0d89eddac69ba8d3ba149f1e199ff0403e641"`
[INFO] [stderr]    Compiling shells v0.2.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.12
[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 26.31s
[INFO] running `"docker" "inspect" "3c2f454cf8c3aecf41abfd047ac0d89eddac69ba8d3ba149f1e199ff0403e641"`
[INFO] running `"docker" "rm" "-f" "3c2f454cf8c3aecf41abfd047ac0d89eddac69ba8d3ba149f1e199ff0403e641"`
[INFO] [stdout] 3c2f454cf8c3aecf41abfd047ac0d89eddac69ba8d3ba149f1e199ff0403e641
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 15ff5bf7c89f52f507dc1a187bba6f2a59afb5efaf7c764a7464132d6683ca56
[INFO] running `"docker" "start" "-a" "15ff5bf7c89f52f507dc1a187bba6f2a59afb5efaf7c764a7464132d6683ca56"`
[INFO] [stderr]    Compiling tasks v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.04s
[INFO] running `"docker" "inspect" "15ff5bf7c89f52f507dc1a187bba6f2a59afb5efaf7c764a7464132d6683ca56"`
[INFO] running `"docker" "rm" "-f" "15ff5bf7c89f52f507dc1a187bba6f2a59afb5efaf7c764a7464132d6683ca56"`
[INFO] [stdout] 15ff5bf7c89f52f507dc1a187bba6f2a59afb5efaf7c764a7464132d6683ca56
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] ac9ac75dcc0486fac27a2e1f3335bb131b5f35a48d62c2ddd93eff86e92ce865
[INFO] running `"docker" "start" "-a" "ac9ac75dcc0486fac27a2e1f3335bb131b5f35a48d62c2ddd93eff86e92ce865"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tasks-5333a1ede19dc7f5
[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]      Running /opt/crater/target/debug/deps/add_chapter-44fd47653c83aec7
[INFO] [stderr]      Running /opt/crater/target/debug/deps/add_code_example-fd2bc01778165d42
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/build_indices-93756f9c92c2cfcc
[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/extract_code-b24a9523fea1bcaa
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rename_chapter-498ff3b6dd82289d
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rename_chapters-8505640ec18288d4
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]    Doc-tests tasks
[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] [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] [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" "ac9ac75dcc0486fac27a2e1f3335bb131b5f35a48d62c2ddd93eff86e92ce865"`
[INFO] running `"docker" "rm" "-f" "ac9ac75dcc0486fac27a2e1f3335bb131b5f35a48d62c2ddd93eff86e92ce865"`
[INFO] [stdout] ac9ac75dcc0486fac27a2e1f3335bb131b5f35a48d62c2ddd93eff86e92ce865