[INFO] updating cached repository nick-lehmann/-Rust-Book [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/nick-lehmann/-Rust-Book [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/nick-lehmann/-Rust-Book" "work/ex/beta-1.38-1/sources/1.37.0/gh/nick-lehmann/-Rust-Book"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nick-lehmann/-Rust-Book'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/nick-lehmann/-Rust-Book" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-lehmann/-Rust-Book"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-lehmann/-Rust-Book'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e1bcab8cfad3181d6edc237f03944024a5e44e77 [INFO] sha for GitHub repo nick-lehmann/-Rust-Book: e1bcab8cfad3181d6edc237f03944024a5e44e77 [INFO] validating manifest of nick-lehmann/-Rust-Book 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 nick-lehmann/-Rust-Book 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 nick-lehmann/-Rust-Book [INFO] finished frobbing nick-lehmann/-Rust-Book [INFO] frobbed toml for nick-lehmann/-Rust-Book written to work/ex/beta-1.38-1/sources/1.37.0/gh/nick-lehmann/-Rust-Book/Cargo.toml [INFO] started frobbing nick-lehmann/-Rust-Book [INFO] finished frobbing nick-lehmann/-Rust-Book [INFO] frobbed toml for nick-lehmann/-Rust-Book written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-lehmann/-Rust-Book/Cargo.toml [INFO] crate nick-lehmann/-Rust-Book 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 nick-lehmann/-Rust-Book 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nick-lehmann/-Rust-Book:/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] 54d8e1fe13b32368d30f0c3d4674c5562a5eab7dd1ed0ef35cc70daed56bfa0b [INFO] running `"docker" "start" "-a" "54d8e1fe13b32368d30f0c3d4674c5562a5eab7dd1ed0ef35cc70daed56bfa0b"` [INFO] [stderr] Compiling Rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/bin/formatting.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | / /// Example function showing the different kinds strings can [INFO] [stderr] 6 | | /// be formatted and printed in Rust. [INFO] [stderr] 7 | | /// [INFO] [stderr] 8 | | /// Printing and formatting is mainly handled by a variety of marcors in std:fmt. [INFO] [stderr] ... | [INFO] [stderr] 25 | | /// count := parameter | integer [INFO] [stderr] 26 | | /// parameter := argument '$' [INFO] [stderr] | |_________________________________^ [INFO] [stderr] ... [INFO] [stderr] 29 | println!("{} days", 31); [INFO] [stderr] | ------------------------ rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused variable: `peter` [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let peter = Person { name, age }; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_peter` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Nil` [INFO] [stderr] --> src/main.rs:8:1 [INFO] [stderr] | [INFO] [stderr] 8 | struct Nil; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Rectangle` [INFO] [stderr] --> src/main.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | struct Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `Rust` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.77s [INFO] running `"docker" "inspect" "54d8e1fe13b32368d30f0c3d4674c5562a5eab7dd1ed0ef35cc70daed56bfa0b"` [INFO] running `"docker" "rm" "-f" "54d8e1fe13b32368d30f0c3d4674c5562a5eab7dd1ed0ef35cc70daed56bfa0b"` [INFO] [stdout] 54d8e1fe13b32368d30f0c3d4674c5562a5eab7dd1ed0ef35cc70daed56bfa0b [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nick-lehmann/-Rust-Book:/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] 3ea4c2931e9e8cbf76860cf0f6acd2e20352eee2e5d9cd38447744986422d001 [INFO] running `"docker" "start" "-a" "3ea4c2931e9e8cbf76860cf0f6acd2e20352eee2e5d9cd38447744986422d001"` [INFO] [stderr] Compiling Rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/bin/formatting.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | / /// Example function showing the different kinds strings can [INFO] [stderr] 6 | | /// be formatted and printed in Rust. [INFO] [stderr] 7 | | /// [INFO] [stderr] 8 | | /// Printing and formatting is mainly handled by a variety of marcors in std:fmt. [INFO] [stderr] ... | [INFO] [stderr] 25 | | /// count := parameter | integer [INFO] [stderr] 26 | | /// parameter := argument '$' [INFO] [stderr] | |_________________________________^ [INFO] [stderr] ... [INFO] [stderr] 29 | println!("{} days", 31); [INFO] [stderr] | ------------------------ rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused variable: `peter` [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let peter = Person { name, age }; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_peter` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Nil` [INFO] [stderr] --> src/main.rs:8:1 [INFO] [stderr] | [INFO] [stderr] 8 | struct Nil; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Rectangle` [INFO] [stderr] --> src/main.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | struct Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `Rust` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.47s [INFO] running `"docker" "inspect" "3ea4c2931e9e8cbf76860cf0f6acd2e20352eee2e5d9cd38447744986422d001"` [INFO] running `"docker" "rm" "-f" "3ea4c2931e9e8cbf76860cf0f6acd2e20352eee2e5d9cd38447744986422d001"` [INFO] [stdout] 3ea4c2931e9e8cbf76860cf0f6acd2e20352eee2e5d9cd38447744986422d001 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nick-lehmann/-Rust-Book:/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] c26629a31c1362b989a23895ad437bf2336630fc6ab0b409cea75fc12937b0cd [INFO] running `"docker" "start" "-a" "c26629a31c1362b989a23895ad437bf2336630fc6ab0b409cea75fc12937b0cd"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/Rust-576cc7a32a300436 [INFO] [stderr] Running /opt/crater/target/debug/deps/formatting-d6d692b42eddd75b [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] [stderr] Running /opt/crater/target/debug/deps/generics-7a44ede0a1380292 [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" "c26629a31c1362b989a23895ad437bf2336630fc6ab0b409cea75fc12937b0cd"` [INFO] running `"docker" "rm" "-f" "c26629a31c1362b989a23895ad437bf2336630fc6ab0b409cea75fc12937b0cd"` [INFO] [stdout] c26629a31c1362b989a23895ad437bf2336630fc6ab0b409cea75fc12937b0cd