[INFO] updating cached repository mrurec/PL4 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mrurec/PL4 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mrurec/PL4" "work/ex/beta-1.38-1/sources/1.37.0/gh/mrurec/PL4"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mrurec/PL4'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mrurec/PL4" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mrurec/PL4"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mrurec/PL4'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b09ad1ea75b50a1e00104a1c7b06ccc4b4b3c271 [INFO] sha for GitHub repo mrurec/PL4: b09ad1ea75b50a1e00104a1c7b06ccc4b4b3c271 [INFO] validating manifest of mrurec/PL4 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 mrurec/PL4 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 mrurec/PL4 [INFO] finished frobbing mrurec/PL4 [INFO] frobbed toml for mrurec/PL4 written to work/ex/beta-1.38-1/sources/1.37.0/gh/mrurec/PL4/Cargo.toml [INFO] started frobbing mrurec/PL4 [INFO] finished frobbing mrurec/PL4 [INFO] frobbed toml for mrurec/PL4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mrurec/PL4/Cargo.toml [INFO] crate mrurec/PL4 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 mrurec/PL4 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/mrurec/PL4:/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] 7a10474dc4553bb80ecd91373825736dcbd12714381f1d34f806a16f76e73884 [INFO] running `"docker" "start" "-a" "7a10474dc4553bb80ecd91373825736dcbd12714381f1d34f806a16f76e73884"` [INFO] [stderr] Compiling PL4 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/protector.rs:54:13 [INFO] [stderr] | [INFO] [stderr] 54 | let mut result = String::new(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_result` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/protector.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let mut result = String::new(); [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: crate `PL4` 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: `pl4` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:27:16 [INFO] [stderr] | [INFO] [stderr] 27 | io::stdin().read_line(&mut message); [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 `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:35:24 [INFO] [stderr] | [INFO] [stderr] 35 | stream.read(&mut rep); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:63:13 [INFO] [stderr] | [INFO] [stderr] 63 | stream.read(&mut key); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:64:13 [INFO] [stderr] | [INFO] [stderr] 64 | stream.read(&mut message); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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 1.70s [INFO] running `"docker" "inspect" "7a10474dc4553bb80ecd91373825736dcbd12714381f1d34f806a16f76e73884"` [INFO] running `"docker" "rm" "-f" "7a10474dc4553bb80ecd91373825736dcbd12714381f1d34f806a16f76e73884"` [INFO] [stdout] 7a10474dc4553bb80ecd91373825736dcbd12714381f1d34f806a16f76e73884 [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/mrurec/PL4:/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] d148ee784f09f7f6c0e1fd20f44b9617a698392544e99f145a5fccaa22053a19 [INFO] running `"docker" "start" "-a" "d148ee784f09f7f6c0e1fd20f44b9617a698392544e99f145a5fccaa22053a19"` [INFO] [stderr] Compiling PL4 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/protector.rs:54:13 [INFO] [stderr] | [INFO] [stderr] 54 | let mut result = String::new(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_result` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/protector.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let mut result = String::new(); [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: crate `PL4` 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: `pl4` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:27:16 [INFO] [stderr] | [INFO] [stderr] 27 | io::stdin().read_line(&mut message); [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 `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:35:24 [INFO] [stderr] | [INFO] [stderr] 35 | stream.read(&mut rep); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:63:13 [INFO] [stderr] | [INFO] [stderr] 63 | stream.read(&mut key); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:64:13 [INFO] [stderr] | [INFO] [stderr] 64 | stream.read(&mut message); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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 0.79s [INFO] running `"docker" "inspect" "d148ee784f09f7f6c0e1fd20f44b9617a698392544e99f145a5fccaa22053a19"` [INFO] running `"docker" "rm" "-f" "d148ee784f09f7f6c0e1fd20f44b9617a698392544e99f145a5fccaa22053a19"` [INFO] [stdout] d148ee784f09f7f6c0e1fd20f44b9617a698392544e99f145a5fccaa22053a19 [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/mrurec/PL4:/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] c7271b78fb53c587adc28adb1bf693223273fa700d65ebfe990224dbccb5c595 [INFO] running `"docker" "start" "-a" "c7271b78fb53c587adc28adb1bf693223273fa700d65ebfe990224dbccb5c595"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/PL4-5dad1d0f640850e9 [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" "c7271b78fb53c587adc28adb1bf693223273fa700d65ebfe990224dbccb5c595"` [INFO] running `"docker" "rm" "-f" "c7271b78fb53c587adc28adb1bf693223273fa700d65ebfe990224dbccb5c595"` [INFO] [stdout] c7271b78fb53c587adc28adb1bf693223273fa700d65ebfe990224dbccb5c595