[INFO] cloning repository https://github.com/skade/rust-three-days-course [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skade/rust-three-days-course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskade%2Frust-three-days-course", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskade%2Frust-three-days-course'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d9aba866d24f7755da23a2e16d4865cf29d2d8f5 [INFO] testing skade/rust-three-days-course against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskade%2Frust-three-days-course" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/skade/rust-three-days-course on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/skade/rust-three-days-course [INFO] finished tweaking git repo https://github.com/skade/rust-three-days-course [INFO] tweaked toml for git repo https://github.com/skade/rust-three-days-course written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/skade/rust-three-days-course already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e3b385865e278e5c420fb060633b8ee0a8dc738ae389632466ee9dfff0133d36 [INFO] running `Command { std: "docker" "start" "-a" "e3b385865e278e5c420fb060633b8ee0a8dc738ae389632466ee9dfff0133d36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e3b385865e278e5c420fb060633b8ee0a8dc738ae389632466ee9dfff0133d36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3b385865e278e5c420fb060633b8ee0a8dc738ae389632466ee9dfff0133d36", kill_on_drop: false }` [INFO] [stdout] e3b385865e278e5c420fb060633b8ee0a8dc738ae389632466ee9dfff0133d36 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 712a7b3221c288f68967ddaf2654edff09e011d2b6c184e215cae24d40574127 [INFO] running `Command { std: "docker" "start" "-a" "712a7b3221c288f68967ddaf2654edff09e011d2b6c184e215cae24d40574127", kill_on_drop: false }` [INFO] [stderr] Compiling itoa v0.3.1 [INFO] [stderr] Compiling dtoa v0.4.1 [INFO] [stderr] Compiling serde v0.9.12 [INFO] [stderr] Compiling num-traits v0.1.37 [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/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/bin/extract-code.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | std::mem::replace(block, new_block); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.46s [INFO] running `Command { std: "docker" "inspect" "712a7b3221c288f68967ddaf2654edff09e011d2b6c184e215cae24d40574127", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "712a7b3221c288f68967ddaf2654edff09e011d2b6c184e215cae24d40574127", kill_on_drop: false }` [INFO] [stdout] 712a7b3221c288f68967ddaf2654edff09e011d2b6c184e215cae24d40574127 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d42cde4f5b848209872b72585bdf546bf3f2c358c65151cc9067faf5bdaac6c0 [INFO] running `Command { std: "docker" "start" "-a" "d42cde4f5b848209872b72585bdf546bf3f2c358c65151cc9067faf5bdaac6c0", kill_on_drop: false }` [INFO] [stderr] Compiling tasks v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/bin/extract-code.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | std::mem::replace(block, new_block); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.36s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/tasks-234360d42ef586e2) [INFO] [stderr] Executable unittests src/bin/add-chapter.rs (/opt/rustwide/target/debug/deps/add_chapter-a480827f453d2940) [INFO] [stderr] Executable unittests src/bin/add-code-example.rs (/opt/rustwide/target/debug/deps/add_code_example-2733cc6df7ae56de) [INFO] [stderr] Executable unittests src/bin/build-indices.rs (/opt/rustwide/target/debug/deps/build_indices-d65e7c0058f82c47) [INFO] [stderr] Executable unittests src/bin/extract-code.rs (/opt/rustwide/target/debug/deps/extract_code-ec89825058476eed) [INFO] [stderr] Executable unittests src/bin/rename-chapter.rs (/opt/rustwide/target/debug/deps/rename_chapter-b9882a67db7837e7) [INFO] [stderr] Executable unittests src/bin/rename-chapters.rs (/opt/rustwide/target/debug/deps/rename_chapters-130fdcf75e2d0f43) [INFO] running `Command { std: "docker" "inspect" "d42cde4f5b848209872b72585bdf546bf3f2c358c65151cc9067faf5bdaac6c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d42cde4f5b848209872b72585bdf546bf3f2c358c65151cc9067faf5bdaac6c0", kill_on_drop: false }` [INFO] [stdout] d42cde4f5b848209872b72585bdf546bf3f2c358c65151cc9067faf5bdaac6c0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 80dd9152797532b60adb157f7eae838296292c8c98c2469adf3eb2df022b175b [INFO] running `Command { std: "docker" "start" "-a" "80dd9152797532b60adb157f7eae838296292c8c98c2469adf3eb2df022b175b", kill_on_drop: false }` [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/bin/extract-code.rs:67:17 [INFO] [stderr] | [INFO] [stderr] 67 | std::mem::replace(block, new_block); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: `tasks` (bin "extract-code" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tasks-234360d42ef586e2) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/add-chapter.rs (/opt/rustwide/target/debug/deps/add_chapter-a480827f453d2940) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/add-code-example.rs (/opt/rustwide/target/debug/deps/add_code_example-2733cc6df7ae56de) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/build-indices.rs (/opt/rustwide/target/debug/deps/build_indices-d65e7c0058f82c47) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/extract-code.rs (/opt/rustwide/target/debug/deps/extract_code-ec89825058476eed) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/rename-chapter.rs (/opt/rustwide/target/debug/deps/rename_chapter-b9882a67db7837e7) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/rename-chapters.rs (/opt/rustwide/target/debug/deps/rename_chapters-130fdcf75e2d0f43) [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; finished in 0.00s [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "80dd9152797532b60adb157f7eae838296292c8c98c2469adf3eb2df022b175b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80dd9152797532b60adb157f7eae838296292c8c98c2469adf3eb2df022b175b", kill_on_drop: false }` [INFO] [stdout] 80dd9152797532b60adb157f7eae838296292c8c98c2469adf3eb2df022b175b