[INFO] updating cached repository RyanMcG/edfp [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/RyanMcG/edfp [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/RyanMcG/edfp" "work/ex/beta-1.38-1/sources/1.37.0/gh/RyanMcG/edfp"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/RyanMcG/edfp'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/RyanMcG/edfp" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyanMcG/edfp"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyanMcG/edfp'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a9591a2b0b2a9d27252e2c50c01214a109cff215 [INFO] sha for GitHub repo RyanMcG/edfp: a9591a2b0b2a9d27252e2c50c01214a109cff215 [INFO] validating manifest of RyanMcG/edfp 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 RyanMcG/edfp 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 RyanMcG/edfp [INFO] finished frobbing RyanMcG/edfp [INFO] frobbed toml for RyanMcG/edfp written to work/ex/beta-1.38-1/sources/1.37.0/gh/RyanMcG/edfp/Cargo.toml [INFO] started frobbing RyanMcG/edfp [INFO] finished frobbing RyanMcG/edfp [INFO] frobbed toml for RyanMcG/edfp written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyanMcG/edfp/Cargo.toml [INFO] crate RyanMcG/edfp 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 RyanMcG/edfp 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RyanMcG/edfp:/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] 5304b62a617392dc74e77e39fa513851d19fd10d7cf71bd63e89ebd1d25f9dd2 [INFO] running `"docker" "start" "-a" "5304b62a617392dc74e77e39fa513851d19fd10d7cf71bd63e89ebd1d25f9dd2"` [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling tempfile v2.1.5 [INFO] [stderr] Compiling edfp v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `empty_string` [INFO] [stderr] --> src/main.rs:64:9 [INFO] [stderr] | [INFO] [stderr] 64 | let empty_string = String::new(); [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_empty_string` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `new_path` [INFO] [stderr] --> src/main.rs:96:33 [INFO] [stderr] | [INFO] [stderr] 96 | Operation::Rename { ref new_path } => true, [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: try ignoring the field: `new_path: _` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:119:50 [INFO] [stderr] | [INFO] [stderr] 119 | fn edfp(mut input: I, mut output: O) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:157:9 [INFO] [stderr] | [INFO] [stderr] 157 | let mut output = io::stdout(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:81:9 [INFO] [stderr] | [INFO] [stderr] 81 | writeln!(output, "{}", header); [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] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:83:13 [INFO] [stderr] | [INFO] [stderr] 83 | writeln!(output, "\t{}", change); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | writeln!(output); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:101:9 [INFO] [stderr] | [INFO] [stderr] 101 | writeln!(output, "No changes"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:114:5 [INFO] [stderr] | [INFO] [stderr] 114 | write!(&tty, "Would you like to make the changes described above (y/n)? "); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.04s [INFO] running `"docker" "inspect" "5304b62a617392dc74e77e39fa513851d19fd10d7cf71bd63e89ebd1d25f9dd2"` [INFO] running `"docker" "rm" "-f" "5304b62a617392dc74e77e39fa513851d19fd10d7cf71bd63e89ebd1d25f9dd2"` [INFO] [stdout] 5304b62a617392dc74e77e39fa513851d19fd10d7cf71bd63e89ebd1d25f9dd2 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RyanMcG/edfp:/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] 1fd1856688490f67e2f7bbace8a33a91282cb2ccdf92a1468a0158364a32ed70 [INFO] running `"docker" "start" "-a" "1fd1856688490f67e2f7bbace8a33a91282cb2ccdf92a1468a0158364a32ed70"` [INFO] [stderr] Compiling edfp v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `empty_string` [INFO] [stderr] --> src/main.rs:64:9 [INFO] [stderr] | [INFO] [stderr] 64 | let empty_string = String::new(); [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_empty_string` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `new_path` [INFO] [stderr] --> src/main.rs:96:33 [INFO] [stderr] | [INFO] [stderr] 96 | Operation::Rename { ref new_path } => true, [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: try ignoring the field: `new_path: _` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:119:50 [INFO] [stderr] | [INFO] [stderr] 119 | fn edfp(mut input: I, mut output: O) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:157:9 [INFO] [stderr] | [INFO] [stderr] 157 | let mut output = io::stdout(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:81:9 [INFO] [stderr] | [INFO] [stderr] 81 | writeln!(output, "{}", header); [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] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:83:13 [INFO] [stderr] | [INFO] [stderr] 83 | writeln!(output, "\t{}", change); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | writeln!(output); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:101:9 [INFO] [stderr] | [INFO] [stderr] 101 | writeln!(output, "No changes"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:114:5 [INFO] [stderr] | [INFO] [stderr] 114 | write!(&tty, "Would you like to make the changes described above (y/n)? "); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.83s [INFO] running `"docker" "inspect" "1fd1856688490f67e2f7bbace8a33a91282cb2ccdf92a1468a0158364a32ed70"` [INFO] running `"docker" "rm" "-f" "1fd1856688490f67e2f7bbace8a33a91282cb2ccdf92a1468a0158364a32ed70"` [INFO] [stdout] 1fd1856688490f67e2f7bbace8a33a91282cb2ccdf92a1468a0158364a32ed70 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RyanMcG/edfp:/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] db106b1ff48b56311aba5090c3125c802057ff9c1a385c7e4e987864c91556dd [INFO] running `"docker" "start" "-a" "db106b1ff48b56311aba5090c3125c802057ff9c1a385c7e4e987864c91556dd"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/crater/target/debug/deps/edfp-348d2857f4faf95a [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" "db106b1ff48b56311aba5090c3125c802057ff9c1a385c7e4e987864c91556dd"` [INFO] running `"docker" "rm" "-f" "db106b1ff48b56311aba5090c3125c802057ff9c1a385c7e4e987864c91556dd"` [INFO] [stdout] db106b1ff48b56311aba5090c3125c802057ff9c1a385c7e4e987864c91556dd