[INFO] cloning repository https://github.com/ErikPartridge/sudoku-generator [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ErikPartridge/sudoku-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikPartridge%2Fsudoku-generator"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikPartridge%2Fsudoku-generator'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] abf3fb1b85c4b234c8d333af646357ec631d53d2 [INFO] testing ErikPartridge/sudoku-generator against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikPartridge%2Fsudoku-generator" "/workspace/builds/worker-5/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ErikPartridge/sudoku-generator on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ErikPartridge/sudoku-generator [INFO] finished tweaking git repo https://github.com/ErikPartridge/sudoku-generator [INFO] tweaked toml for git repo https://github.com/ErikPartridge/sudoku-generator written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/ErikPartridge/sudoku-generator already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d6ddace93d2dcc78976bb3eb22d2aca3373db23ab8b028e75d847e84b6ca1e5f [INFO] running `"docker" "start" "-a" "d6ddace93d2dcc78976bb3eb22d2aca3373db23ab8b028e75d847e84b6ca1e5f"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rand v0.5.5 [INFO] [stderr] Compiling sudoku-generator v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `freedom::Freedom` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use freedom::Freedom; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `problem::Problem` [INFO] [stderr] --> src/main.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use problem::Problem; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/freedom.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | for j in 0..3 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ORDER` [INFO] [stderr] --> src/freedom.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | const ORDER: u8 = 3; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `DIM` [INFO] [stderr] --> src/freedom.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | const DIM: u8 = ORDER * ORDER; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ELEMENTS` [INFO] [stderr] --> src/freedom.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | const ELEMENTS: u8 = DIM * DIM; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ALL_VALUES` [INFO] [stderr] --> src/freedom.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | const ALL_VALUES: u16 = (1 << DIM) - 1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Freedom` [INFO] [stderr] --> src/freedom.rs:7:12 [INFO] [stderr] | [INFO] [stderr] 7 | pub struct Freedom { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `singleton` [INFO] [stderr] --> src/freedom.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn singleton(v: u16) -> u16 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `freedom_eliminate` [INFO] [stderr] --> src/freedom.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn freedom_eliminate(f: &Freedom, col: u16, row: u16, value: u16) -> Freedom { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `create_freedom` [INFO] [stderr] --> src/freedom.rs:38:4 [INFO] [stderr] | [INFO] [stderr] 38 | fn create_freedom(problem: &Problem) -> Freedom { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sanity_check` [INFO] [stderr] --> src/freedom.rs:52:4 [INFO] [stderr] | [INFO] [stderr] 52 | fn sanity_check(problem: &Problem, freedom: &Freedom) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `search_least_free` [INFO] [stderr] --> src/freedom.rs:63:4 [INFO] [stderr] | [INFO] [stderr] 63 | fn search_least_free(problem: &Problem, freedom: &Freedom) -> u16 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Problem` [INFO] [stderr] --> src/problem.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | pub struct Problem { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.32s [INFO] running `"docker" "inspect" "d6ddace93d2dcc78976bb3eb22d2aca3373db23ab8b028e75d847e84b6ca1e5f"` [INFO] running `"docker" "rm" "-f" "d6ddace93d2dcc78976bb3eb22d2aca3373db23ab8b028e75d847e84b6ca1e5f"` [INFO] [stdout] d6ddace93d2dcc78976bb3eb22d2aca3373db23ab8b028e75d847e84b6ca1e5f [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a4a41db7fbd46c89a61532346b9d855149e851430adcd7ede1a717e3c6b71eb1 [INFO] running `"docker" "start" "-a" "a4a41db7fbd46c89a61532346b9d855149e851430adcd7ede1a717e3c6b71eb1"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling sudoku-generator v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `freedom::Freedom` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use freedom::Freedom; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `problem::Problem` [INFO] [stderr] --> src/main.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use problem::Problem; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/freedom.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | for j in 0..3 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ORDER` [INFO] [stderr] --> src/freedom.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | const ORDER: u8 = 3; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `DIM` [INFO] [stderr] --> src/freedom.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | const DIM: u8 = ORDER * ORDER; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ELEMENTS` [INFO] [stderr] --> src/freedom.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | const ELEMENTS: u8 = DIM * DIM; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ALL_VALUES` [INFO] [stderr] --> src/freedom.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | const ALL_VALUES: u16 = (1 << DIM) - 1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Freedom` [INFO] [stderr] --> src/freedom.rs:7:12 [INFO] [stderr] | [INFO] [stderr] 7 | pub struct Freedom { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `singleton` [INFO] [stderr] --> src/freedom.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn singleton(v: u16) -> u16 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `freedom_eliminate` [INFO] [stderr] --> src/freedom.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn freedom_eliminate(f: &Freedom, col: u16, row: u16, value: u16) -> Freedom { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `create_freedom` [INFO] [stderr] --> src/freedom.rs:38:4 [INFO] [stderr] | [INFO] [stderr] 38 | fn create_freedom(problem: &Problem) -> Freedom { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sanity_check` [INFO] [stderr] --> src/freedom.rs:52:4 [INFO] [stderr] | [INFO] [stderr] 52 | fn sanity_check(problem: &Problem, freedom: &Freedom) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `search_least_free` [INFO] [stderr] --> src/freedom.rs:63:4 [INFO] [stderr] | [INFO] [stderr] 63 | fn search_least_free(problem: &Problem, freedom: &Freedom) -> u16 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Problem` [INFO] [stderr] --> src/problem.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | pub struct Problem { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `"docker" "inspect" "a4a41db7fbd46c89a61532346b9d855149e851430adcd7ede1a717e3c6b71eb1"` [INFO] running `"docker" "rm" "-f" "a4a41db7fbd46c89a61532346b9d855149e851430adcd7ede1a717e3c6b71eb1"` [INFO] [stdout] a4a41db7fbd46c89a61532346b9d855149e851430adcd7ede1a717e3c6b71eb1 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 048a2dd1a4aec1c10780ab65cb8cd690e7b5bef4b16f015a188eab2f8250c304 [INFO] running `"docker" "start" "-a" "048a2dd1a4aec1c10780ab65cb8cd690e7b5bef4b16f015a188eab2f8250c304"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `freedom::Freedom` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use freedom::Freedom; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `problem::Problem` [INFO] [stderr] --> src/main.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use problem::Problem; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/freedom.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | for j in 0..3 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ORDER` [INFO] [stderr] --> src/freedom.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | const ORDER: u8 = 3; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `DIM` [INFO] [stderr] --> src/freedom.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | const DIM: u8 = ORDER * ORDER; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ELEMENTS` [INFO] [stderr] --> src/freedom.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | const ELEMENTS: u8 = DIM * DIM; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ALL_VALUES` [INFO] [stderr] --> src/freedom.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | const ALL_VALUES: u16 = (1 << DIM) - 1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Freedom` [INFO] [stderr] --> src/freedom.rs:7:12 [INFO] [stderr] | [INFO] [stderr] 7 | pub struct Freedom { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `singleton` [INFO] [stderr] --> src/freedom.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn singleton(v: u16) -> u16 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `freedom_eliminate` [INFO] [stderr] --> src/freedom.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn freedom_eliminate(f: &Freedom, col: u16, row: u16, value: u16) -> Freedom { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `create_freedom` [INFO] [stderr] --> src/freedom.rs:38:4 [INFO] [stderr] | [INFO] [stderr] 38 | fn create_freedom(problem: &Problem) -> Freedom { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sanity_check` [INFO] [stderr] --> src/freedom.rs:52:4 [INFO] [stderr] | [INFO] [stderr] 52 | fn sanity_check(problem: &Problem, freedom: &Freedom) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `search_least_free` [INFO] [stderr] --> src/freedom.rs:63:4 [INFO] [stderr] | [INFO] [stderr] 63 | fn search_least_free(problem: &Problem, freedom: &Freedom) -> u16 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Problem` [INFO] [stderr] --> src/problem.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | pub struct Problem { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/sudoku_generator-eb198658e3dac621 [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" "048a2dd1a4aec1c10780ab65cb8cd690e7b5bef4b16f015a188eab2f8250c304"` [INFO] running `"docker" "rm" "-f" "048a2dd1a4aec1c10780ab65cb8cd690e7b5bef4b16f015a188eab2f8250c304"` [INFO] [stdout] 048a2dd1a4aec1c10780ab65cb8cd690e7b5bef4b16f015a188eab2f8250c304