[INFO] updating cached repository fuzuchang/Rust-code [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/fuzuchang/Rust-code [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/fuzuchang/Rust-code" "work/ex/beta-1.38-1/sources/1.37.0/gh/fuzuchang/Rust-code"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fuzuchang/Rust-code'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/fuzuchang/Rust-code" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fuzuchang/Rust-code"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fuzuchang/Rust-code'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ea9ada479ff126e0aad382805e387f8e16a24c4c [INFO] sha for GitHub repo fuzuchang/Rust-code: ea9ada479ff126e0aad382805e387f8e16a24c4c [INFO] validating manifest of fuzuchang/Rust-code 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 fuzuchang/Rust-code 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 fuzuchang/Rust-code [INFO] finished frobbing fuzuchang/Rust-code [INFO] frobbed toml for fuzuchang/Rust-code written to work/ex/beta-1.38-1/sources/1.37.0/gh/fuzuchang/Rust-code/Cargo.toml [INFO] started frobbing fuzuchang/Rust-code [INFO] finished frobbing fuzuchang/Rust-code [INFO] frobbed toml for fuzuchang/Rust-code written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fuzuchang/Rust-code/Cargo.toml [INFO] crate fuzuchang/Rust-code 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/fuzuchang/Rust-code/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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] [stderr] Blocking waiting for file lock on package cache [INFO] testing fuzuchang/Rust-code 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-7/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/fuzuchang/Rust-code:/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] c71022900e731b118c151da15f57503287449411317c3e46654f2bc1742c0549 [INFO] running `"docker" "start" "-a" "c71022900e731b118c151da15f57503287449411317c3e46654f2bc1742c0549"` [INFO] [stderr] Compiling rust-code v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: constant item is never used: `X` [INFO] [stderr] --> src/lib.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | const X: i32 = 10; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_aaa` [INFO] [stderr] --> src/lib.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn print_aaa() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_bbb` [INFO] [stderr] --> src/lib.rs:10:8 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn print_bbb() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: module `BBB` should have a snake case name [INFO] [stderr] --> src/lib.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | mod BBB { [INFO] [stderr] | ^^^ help: convert the identifier to snake case: `bbb` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::net` [INFO] [stderr] --> src/bin/practice-net.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::net; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/practice-io.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | read_input(); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.40s [INFO] running `"docker" "inspect" "c71022900e731b118c151da15f57503287449411317c3e46654f2bc1742c0549"` [INFO] running `"docker" "rm" "-f" "c71022900e731b118c151da15f57503287449411317c3e46654f2bc1742c0549"` [INFO] [stdout] c71022900e731b118c151da15f57503287449411317c3e46654f2bc1742c0549 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/fuzuchang/Rust-code:/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] 1e0a77e240e982234df7a46be2fd4e1d01e65c52938f8df0f1c0e06c91339c18 [INFO] running `"docker" "start" "-a" "1e0a77e240e982234df7a46be2fd4e1d01e65c52938f8df0f1c0e06c91339c18"` [INFO] [stderr] Compiling rust-code v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/practice-io.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | read_input(); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::net` [INFO] [stderr] --> src/bin/practice-net.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::net; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `X` [INFO] [stderr] --> src/lib.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | const X: i32 = 10; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_aaa` [INFO] [stderr] --> src/lib.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn print_aaa() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_bbb` [INFO] [stderr] --> src/lib.rs:10:8 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn print_bbb() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: module `BBB` should have a snake case name [INFO] [stderr] --> src/lib.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | mod BBB { [INFO] [stderr] | ^^^ help: convert the identifier to snake case: `bbb` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.75s [INFO] running `"docker" "inspect" "1e0a77e240e982234df7a46be2fd4e1d01e65c52938f8df0f1c0e06c91339c18"` [INFO] running `"docker" "rm" "-f" "1e0a77e240e982234df7a46be2fd4e1d01e65c52938f8df0f1c0e06c91339c18"` [INFO] [stdout] 1e0a77e240e982234df7a46be2fd4e1d01e65c52938f8df0f1c0e06c91339c18 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/fuzuchang/Rust-code:/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] fc5709631952152e839ecbdeb34b57f2c32cab7e39d8bec6173fa6b0f292ee04 [INFO] running `"docker" "start" "-a" "fc5709631952152e839ecbdeb34b57f2c32cab7e39d8bec6173fa6b0f292ee04"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.22s [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/rust_code-bffc5c6cbb12d39f [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/p_fs-20faf4d205d8dcf9 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/p_io-61dc9274c12f7982 [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] Running /opt/crater/target/debug/deps/p_mem-b648944c00760b30 [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] [stderr] Running /opt/crater/target/debug/deps/p_net-66849ef04e580963 [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/p_str-e2981538ac712dda [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/rust_code-e095f33343e2bbc0 [INFO] [stderr] Doc-tests rust-code [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" "fc5709631952152e839ecbdeb34b57f2c32cab7e39d8bec6173fa6b0f292ee04"` [INFO] running `"docker" "rm" "-f" "fc5709631952152e839ecbdeb34b57f2c32cab7e39d8bec6173fa6b0f292ee04"` [INFO] [stdout] fc5709631952152e839ecbdeb34b57f2c32cab7e39d8bec6173fa6b0f292ee04