[INFO] updating cached repository tbelaire/dailyprogrammer_challenge247_easy_secret_santa [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/tbelaire/dailyprogrammer_challenge247_easy_secret_santa [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa" "work/ex/beta-1.37-6/sources/1.36.0/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 711646bcb7d841928c02268d3ca07747db13c311 [INFO] sha for GitHub repo tbelaire/dailyprogrammer_challenge247_easy_secret_santa: 711646bcb7d841928c02268d3ca07747db13c311 [INFO] validating manifest of tbelaire/dailyprogrammer_challenge247_easy_secret_santa on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of tbelaire/dailyprogrammer_challenge247_easy_secret_santa on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing tbelaire/dailyprogrammer_challenge247_easy_secret_santa [INFO] finished frobbing tbelaire/dailyprogrammer_challenge247_easy_secret_santa [INFO] frobbed toml for tbelaire/dailyprogrammer_challenge247_easy_secret_santa written to work/ex/beta-1.37-6/sources/1.36.0/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa/Cargo.toml [INFO] started frobbing tbelaire/dailyprogrammer_challenge247_easy_secret_santa [INFO] finished frobbing tbelaire/dailyprogrammer_challenge247_easy_secret_santa [INFO] frobbed toml for tbelaire/dailyprogrammer_challenge247_easy_secret_santa written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa/Cargo.toml [INFO] crate tbelaire/dailyprogrammer_challenge247_easy_secret_santa already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing tbelaire/dailyprogrammer_challenge247_easy_secret_santa against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa:/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-2019-07-23" "build" "--frozen"` [INFO] [stdout] 71858ef27b9cd1ebb519cb3fbaaa2416156742900eb2e7b1d5f05e3296995407 [INFO] running `"docker" "start" "-a" "71858ef27b9cd1ebb519cb3fbaaa2416156742900eb2e7b1d5f05e3296995407"` [INFO] [stderr] Compiling challenge_247_easy_secret_santa v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:73:56 [INFO] [stderr] | [INFO] [stderr] 73 | fn load_family(path: &Path) -> Result, Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/main.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | / pub fn new(people: Vec) -> Self [INFO] [stderr] 18 | | where T: Into [INFO] [stderr] 19 | | { [INFO] [stderr] 20 | | Family { [INFO] [stderr] ... | [INFO] [stderr] 23 | | } [INFO] [stderr] 24 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new2` [INFO] [stderr] --> src/main.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | / pub fn new2(people: V) -> Self [INFO] [stderr] 26 | | where V: Into>, [INFO] [stderr] 27 | | T: Into [INFO] [stderr] 28 | | { [INFO] [stderr] ... | [INFO] [stderr] 32 | | } [INFO] [stderr] 33 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.12s [INFO] running `"docker" "inspect" "71858ef27b9cd1ebb519cb3fbaaa2416156742900eb2e7b1d5f05e3296995407"` [INFO] running `"docker" "rm" "-f" "71858ef27b9cd1ebb519cb3fbaaa2416156742900eb2e7b1d5f05e3296995407"` [INFO] [stdout] 71858ef27b9cd1ebb519cb3fbaaa2416156742900eb2e7b1d5f05e3296995407 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa:/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-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] 72ebca5f7e16837f3ac97759be16e00d53cbe49f42618199a88a2754729b8281 [INFO] running `"docker" "start" "-a" "72ebca5f7e16837f3ac97759be16e00d53cbe49f42618199a88a2754729b8281"` [INFO] [stderr] Compiling challenge_247_easy_secret_santa v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:73:56 [INFO] [stderr] | [INFO] [stderr] 73 | fn load_family(path: &Path) -> Result, Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.80s [INFO] running `"docker" "inspect" "72ebca5f7e16837f3ac97759be16e00d53cbe49f42618199a88a2754729b8281"` [INFO] running `"docker" "rm" "-f" "72ebca5f7e16837f3ac97759be16e00d53cbe49f42618199a88a2754729b8281"` [INFO] [stdout] 72ebca5f7e16837f3ac97759be16e00d53cbe49f42618199a88a2754729b8281 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tbelaire/dailyprogrammer_challenge247_easy_secret_santa:/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-2019-07-23" "test" "--frozen"` [INFO] [stdout] 9f3dd97575d95a0d2b525d39092babca4fd569174320f11ae822dffa7a37b55a [INFO] running `"docker" "start" "-a" "9f3dd97575d95a0d2b525d39092babca4fd569174320f11ae822dffa7a37b55a"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/challenge_247_easy_secret_santa-686d7912a93d9258 [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test test_family_constructor ... ok [INFO] [stdout] test test_infeasible ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "9f3dd97575d95a0d2b525d39092babca4fd569174320f11ae822dffa7a37b55a"` [INFO] running `"docker" "rm" "-f" "9f3dd97575d95a0d2b525d39092babca4fd569174320f11ae822dffa7a37b55a"` [INFO] [stdout] 9f3dd97575d95a0d2b525d39092babca4fd569174320f11ae822dffa7a37b55a