[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 beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] f14cacd3a317ff9f6fecfbefd94b85e826026bf756fc10f879b37494379e344d [INFO] running `"docker" "start" "-a" "f14cacd3a317ff9f6fecfbefd94b85e826026bf756fc10f879b37494379e344d"` [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 1.65s [INFO] running `"docker" "inspect" "f14cacd3a317ff9f6fecfbefd94b85e826026bf756fc10f879b37494379e344d"` [INFO] running `"docker" "rm" "-f" "f14cacd3a317ff9f6fecfbefd94b85e826026bf756fc10f879b37494379e344d"` [INFO] [stdout] f14cacd3a317ff9f6fecfbefd94b85e826026bf756fc10f879b37494379e344d [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] 75bf111582fa90195025f8a544b0b36f77514575bdc1723965c259d5fae92fa3 [INFO] running `"docker" "start" "-a" "75bf111582fa90195025f8a544b0b36f77514575bdc1723965c259d5fae92fa3"` [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 1.30s [INFO] running `"docker" "inspect" "75bf111582fa90195025f8a544b0b36f77514575bdc1723965c259d5fae92fa3"` [INFO] running `"docker" "rm" "-f" "75bf111582fa90195025f8a544b0b36f77514575bdc1723965c259d5fae92fa3"` [INFO] [stdout] 75bf111582fa90195025f8a544b0b36f77514575bdc1723965c259d5fae92fa3 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"` [INFO] [stdout] 3ef3456cad2b17f4233ea209b432bc7de3a6a8b54de31d51177538d0defdf213 [INFO] running `"docker" "start" "-a" "3ef3456cad2b17f4233ea209b432bc7de3a6a8b54de31d51177538d0defdf213"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/Rust-c54c6e8fff3c0646 [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/formatting-1fc1ca220e7e388d [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-5612e89fb749b56b [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" "3ef3456cad2b17f4233ea209b432bc7de3a6a8b54de31d51177538d0defdf213"` [INFO] running `"docker" "rm" "-f" "3ef3456cad2b17f4233ea209b432bc7de3a6a8b54de31d51177538d0defdf213"` [INFO] [stdout] 3ef3456cad2b17f4233ea209b432bc7de3a6a8b54de31d51177538d0defdf213