[INFO] updating cached repository lbn/jimmy [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/lbn/jimmy [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/lbn/jimmy" "work/ex/beta-1.38-1/sources/1.37.0/gh/lbn/jimmy"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lbn/jimmy'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/lbn/jimmy" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lbn/jimmy"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lbn/jimmy'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] bc7b44d0e4036edf7a4e41a39e586d62fd74a161 [INFO] sha for GitHub repo lbn/jimmy: bc7b44d0e4036edf7a4e41a39e586d62fd74a161 [INFO] validating manifest of lbn/jimmy 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 lbn/jimmy 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 lbn/jimmy [INFO] finished frobbing lbn/jimmy [INFO] frobbed toml for lbn/jimmy written to work/ex/beta-1.38-1/sources/1.37.0/gh/lbn/jimmy/Cargo.toml [INFO] started frobbing lbn/jimmy [INFO] finished frobbing lbn/jimmy [INFO] frobbed toml for lbn/jimmy written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lbn/jimmy/Cargo.toml [INFO] crate lbn/jimmy 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/lbn/jimmy/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needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml"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] testing lbn/jimmy 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/lbn/jimmy:/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] 21175dd0eb831040ef9609e8b297df9bdbec37741f701a69e5a0ddff044142d4 [INFO] running `"docker" "start" "-a" "21175dd0eb831040ef9609e8b297df9bdbec37741f701a69e5a0ddff044142d4"` [INFO] [stderr] Compiling unicode-width v0.1.6 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling yaml-rust v0.4.3 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling chrono v0.4.7 [INFO] [stderr] Compiling jimmy v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `day` [INFO] [stderr] --> src/main.rs:303:13 [INFO] [stderr] | [INFO] [stderr] 303 | let day = Day::input(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_day` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `filename` [INFO] [stderr] --> src/main.rs:233:20 [INFO] [stderr] | [INFO] [stderr] 233 | fn save(&self, filename: &str) { [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_filename` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:45:13 [INFO] [stderr] | [INFO] [stderr] 45 | let mut stdin = io::stdin(); [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:91:13 [INFO] [stderr] | [INFO] [stderr] 91 | let mut stdin = io::stdin(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:113:12 [INFO] [stderr] | [INFO] [stderr] 113 | let mut nsets: Vec = self.sets.iter().map(|set| set.serialise()).collect(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:154:13 [INFO] [stderr] | [INFO] [stderr] 154 | let mut stdin = io::stdin(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:180:12 [INFO] [stderr] | [INFO] [stderr] 180 | let mut nexs: Vec = self.exercises.iter().map(|ex| ex.serialise()).collect(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:244:12 [INFO] [stderr] | [INFO] [stderr] 244 | let mut days: Vec = self.days.iter().map(|day| day.serialise()).collect(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `file` [INFO] [stderr] --> src/main.rs:199:5 [INFO] [stderr] | [INFO] [stderr] 199 | file: File [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.36s [INFO] running `"docker" "inspect" "21175dd0eb831040ef9609e8b297df9bdbec37741f701a69e5a0ddff044142d4"` [INFO] running `"docker" "rm" "-f" "21175dd0eb831040ef9609e8b297df9bdbec37741f701a69e5a0ddff044142d4"` [INFO] [stdout] 21175dd0eb831040ef9609e8b297df9bdbec37741f701a69e5a0ddff044142d4 [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/lbn/jimmy:/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] bfe35486fd82c726e48c2f4a094a000385e4c86310c6a3598b1b1723e7e53276 [INFO] running `"docker" "start" "-a" "bfe35486fd82c726e48c2f4a094a000385e4c86310c6a3598b1b1723e7e53276"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling jimmy v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `day` [INFO] [stderr] --> src/main.rs:303:13 [INFO] [stderr] | [INFO] [stderr] 303 | let day = Day::input(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_day` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `filename` [INFO] [stderr] --> src/main.rs:233:20 [INFO] [stderr] | [INFO] [stderr] 233 | fn save(&self, filename: &str) { [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_filename` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:45:13 [INFO] [stderr] | [INFO] [stderr] 45 | let mut stdin = io::stdin(); [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:91:13 [INFO] [stderr] | [INFO] [stderr] 91 | let mut stdin = io::stdin(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:113:12 [INFO] [stderr] | [INFO] [stderr] 113 | let mut nsets: Vec = self.sets.iter().map(|set| set.serialise()).collect(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:154:13 [INFO] [stderr] | [INFO] [stderr] 154 | let mut stdin = io::stdin(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:180:12 [INFO] [stderr] | [INFO] [stderr] 180 | let mut nexs: Vec = self.exercises.iter().map(|ex| ex.serialise()).collect(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:244:12 [INFO] [stderr] | [INFO] [stderr] 244 | let mut days: Vec = self.days.iter().map(|day| day.serialise()).collect(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `file` [INFO] [stderr] --> src/main.rs:199:5 [INFO] [stderr] | [INFO] [stderr] 199 | file: File [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.58s [INFO] running `"docker" "inspect" "bfe35486fd82c726e48c2f4a094a000385e4c86310c6a3598b1b1723e7e53276"` [INFO] running `"docker" "rm" "-f" "bfe35486fd82c726e48c2f4a094a000385e4c86310c6a3598b1b1723e7e53276"` [INFO] [stdout] bfe35486fd82c726e48c2f4a094a000385e4c86310c6a3598b1b1723e7e53276 [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/lbn/jimmy:/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] aae27eeec8cf3634e4e1eec6dcb1df6ee13c7c6875b4df50a1a154ae3dbcc85d [INFO] running `"docker" "start" "-a" "aae27eeec8cf3634e4e1eec6dcb1df6ee13c7c6875b4df50a1a154ae3dbcc85d"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running /opt/crater/target/debug/deps/jimmy-813b0b3adb7a804b [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::get_pre ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "aae27eeec8cf3634e4e1eec6dcb1df6ee13c7c6875b4df50a1a154ae3dbcc85d"` [INFO] running `"docker" "rm" "-f" "aae27eeec8cf3634e4e1eec6dcb1df6ee13c7c6875b4df50a1a154ae3dbcc85d"` [INFO] [stdout] aae27eeec8cf3634e4e1eec6dcb1df6ee13c7c6875b4df50a1a154ae3dbcc85d