[INFO] updating cached repository https://github.com/Dari420/multiplication-table-rs [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b245b09e88346da1f7c3c8c905a287eb6713c512 [INFO] testing Dari420/multiplication-table-rs against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDari420%2Fmultiplication-table-rs" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Dari420/multiplication-table-rs 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/Dari420/multiplication-table-rs [INFO] finished tweaking git repo https://github.com/Dari420/multiplication-table-rs [INFO] tweaked toml for git repo https://github.com/Dari420/multiplication-table-rs written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/Dari420/multiplication-table-rs 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 636405773b59de889c730e3ba2aa89035de4c029a03490f610abd1581c686093 [INFO] running `"docker" "start" "-a" "636405773b59de889c730e3ba2aa89035de4c029a03490f610abd1581c686093"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling multiplication_tables v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/main.rs:1:22 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io::{stdin, Read}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut f = File::open(path).expect("Unable to open file"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `multiplier_cols` is never read [INFO] [stderr] --> src/main.rs:21:13 [INFO] [stderr] | [INFO] [stderr] 21 | let mut multiplier_cols: isize = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `newline` [INFO] [stderr] --> src/main.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let newline = "\n"; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newline` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:30:29 [INFO] [stderr] | [INFO] [stderr] 30 | Some(Value::Int(i)) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rows` [INFO] [stderr] --> src/main.rs:31:21 [INFO] [stderr] | [INFO] [stderr] 31 | for rows in 0isize..c_limit.parse().unwrap() { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_rows` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `columns` [INFO] [stderr] --> src/main.rs:34:25 [INFO] [stderr] | [INFO] [stderr] 34 | for columns in 0isize..c_limit.parse().unwrap() { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut f = File::open(path).expect("Unable to open file"); [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:36:29 [INFO] [stderr] | [INFO] [stderr] 36 | let mut product = &multiplier_rows * multiplier_cols; [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:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | File::create(path); [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:40:25 [INFO] [stderr] | [INFO] [stderr] 40 | fs::write(path, &data); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.96s [INFO] running `"docker" "inspect" "636405773b59de889c730e3ba2aa89035de4c029a03490f610abd1581c686093"` [INFO] running `"docker" "rm" "-f" "636405773b59de889c730e3ba2aa89035de4c029a03490f610abd1581c686093"` [INFO] [stdout] 636405773b59de889c730e3ba2aa89035de4c029a03490f610abd1581c686093 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 9addff1590cece3ff7fc14ee1bf41b3c5f71265d2a3a051200d09691eeb14402 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "9addff1590cece3ff7fc14ee1bf41b3c5f71265d2a3a051200d09691eeb14402"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling multiplication_tables v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/main.rs:1:22 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io::{stdin, Read}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut f = File::open(path).expect("Unable to open file"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `multiplier_cols` is never read [INFO] [stderr] --> src/main.rs:21:13 [INFO] [stderr] | [INFO] [stderr] 21 | let mut multiplier_cols: isize = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `newline` [INFO] [stderr] --> src/main.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let newline = "\n"; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newline` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:30:29 [INFO] [stderr] | [INFO] [stderr] 30 | Some(Value::Int(i)) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rows` [INFO] [stderr] --> src/main.rs:31:21 [INFO] [stderr] | [INFO] [stderr] 31 | for rows in 0isize..c_limit.parse().unwrap() { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_rows` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `columns` [INFO] [stderr] --> src/main.rs:34:25 [INFO] [stderr] | [INFO] [stderr] 34 | for columns in 0isize..c_limit.parse().unwrap() { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut f = File::open(path).expect("Unable to open file"); [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:36:29 [INFO] [stderr] | [INFO] [stderr] 36 | let mut product = &multiplier_rows * multiplier_cols; [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:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | File::create(path); [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:40:25 [INFO] [stderr] | [INFO] [stderr] 40 | fs::write(path, &data); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.29s [INFO] running `"docker" "inspect" "9addff1590cece3ff7fc14ee1bf41b3c5f71265d2a3a051200d09691eeb14402"` [INFO] running `"docker" "rm" "-f" "9addff1590cece3ff7fc14ee1bf41b3c5f71265d2a3a051200d09691eeb14402"` [INFO] [stdout] 9addff1590cece3ff7fc14ee1bf41b3c5f71265d2a3a051200d09691eeb14402 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] f83c4687254807ebf729cb0a0e0b18cec12c315c6374da626716658aedf7ba61 [INFO] running `"docker" "start" "-a" "f83c4687254807ebf729cb0a0e0b18cec12c315c6374da626716658aedf7ba61"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/main.rs:1:22 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io::{stdin, Read}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut f = File::open(path).expect("Unable to open file"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `multiplier_cols` is never read [INFO] [stderr] --> src/main.rs:21:13 [INFO] [stderr] | [INFO] [stderr] 21 | let mut multiplier_cols: isize = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `newline` [INFO] [stderr] --> src/main.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let newline = "\n"; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newline` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:30:29 [INFO] [stderr] | [INFO] [stderr] 30 | Some(Value::Int(i)) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rows` [INFO] [stderr] --> src/main.rs:31:21 [INFO] [stderr] | [INFO] [stderr] 31 | for rows in 0isize..c_limit.parse().unwrap() { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_rows` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `columns` [INFO] [stderr] --> src/main.rs:34:25 [INFO] [stderr] | [INFO] [stderr] 34 | for columns in 0isize..c_limit.parse().unwrap() { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut f = File::open(path).expect("Unable to open file"); [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:36:29 [INFO] [stderr] | [INFO] [stderr] 36 | let mut product = &multiplier_rows * multiplier_cols; [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:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | File::create(path); [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:40:25 [INFO] [stderr] | [INFO] [stderr] 40 | fs::write(path, &data); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/multiplication_tables-3f479408a363e034 [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" "f83c4687254807ebf729cb0a0e0b18cec12c315c6374da626716658aedf7ba61"` [INFO] running `"docker" "rm" "-f" "f83c4687254807ebf729cb0a0e0b18cec12c315c6374da626716658aedf7ba61"` [INFO] [stdout] f83c4687254807ebf729cb0a0e0b18cec12c315c6374da626716658aedf7ba61