[INFO] updating cached repository https://github.com/suhanyujie/rust-cookbook-note [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] [stderr] From https://github.com/suhanyujie/rust-cookbook-note [INFO] [stderr] ff8114f..3e4747a master -> master [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3e4747a113924730bd7ef5aef06e4215075dc37b [INFO] testing suhanyujie/rust-cookbook-note against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frust-cookbook-note" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/suhanyujie/rust-cookbook-note on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/suhanyujie/rust-cookbook-note [INFO] finished tweaking git repo https://github.com/suhanyujie/rust-cookbook-note [INFO] tweaked toml for git repo https://github.com/suhanyujie/rust-cookbook-note written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/suhanyujie/rust-cookbook-note already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.44.0" "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] a57e17ac0fe37391c717190aa998c124a964c8456a4365d5b9d85f21f4377b8f [INFO] running `"docker" "start" "-a" "a57e17ac0fe37391c717190aa998c124a964c8456a4365d5b9d85f21f4377b8f"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling cookbook v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/notes/alpha.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::Ordering` [INFO] [stderr] --> src/notes/copy_trait.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cmp::Ordering; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Div`, `Mul`, `Sub` [INFO] [stderr] --> src/notes/op_rhs.rs:1:21 [INFO] [stderr] | [INFO] [stderr] 1 | use std::ops::{Add, Div, Mul, Sub}; [INFO] [stderr] | ^^^ ^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `notes::alpha` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use notes::alpha; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/main.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 16 | process::exit(-1); [INFO] [stderr] | ----------------- any code following this expression is unreachable [INFO] [stderr] 17 | command::try_with_test_param(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `status` [INFO] [stderr] --> src/command.rs:38:13 [INFO] [stderr] | [INFO] [stderr] 38 | status, [INFO] [stderr] | ^^^^^^ help: try ignoring the field: `status: _` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stderr` [INFO] [stderr] --> src/command.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | stderr, [INFO] [stderr] | ^^^^^^ help: try ignoring the field: `stderr: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p_duck` [INFO] [stderr] --> src/notes/alpha.rs:24:22 [INFO] [stderr] | [INFO] [stderr] 24 | fn print_traitobject(p_duck: &dyn Bird) { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_duck` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `d3` [INFO] [stderr] --> src/notes/alpha.rs:32:9 [INFO] [stderr] | [INFO] [stderr] 32 | let d3 = d2 as &dyn Bird; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_d3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/notes/copy_trait.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let v2 = v1; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm.rs:93:9 [INFO] [stderr] | [INFO] [stderr] 93 | let mut rng = rand::thread_rng(); [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: function is never used: `gen_a_u8_num` [INFO] [stderr] --> src/algorithm.rs:36:8 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn gen_a_u8_num() -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gen_a_i32_num` [INFO] [stderr] --> src/algorithm.rs:45:8 [INFO] [stderr] | [INFO] [stderr] 45 | pub fn gen_a_i32_num() -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gen_random_within_range` [INFO] [stderr] --> src/algorithm.rs:53:8 [INFO] [stderr] | [INFO] [stderr] 53 | pub fn gen_random_within_range(min: isize, max: isize) -> isize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_random_string` [INFO] [stderr] --> src/algorithm.rs:92:8 [INFO] [stderr] | [INFO] [stderr] 92 | pub fn get_random_string(length: u8) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_random_string_from_customer_str` [INFO] [stderr] --> src/algorithm.rs:111:8 [INFO] [stderr] | [INFO] [stderr] 111 | pub fn get_random_string_from_customer_str(length: u8) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_traitobject` [INFO] [stderr] --> src/notes/alpha.rs:24:4 [INFO] [stderr] | [INFO] [stderr] 24 | fn print_traitobject(p_duck: &dyn Bird) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/notes/alpha.rs:29:8 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused attribute [INFO] [stderr] --> src/notes/alpha.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(dyn_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_attributes)]` on by default [INFO] [stderr] [INFO] [stderr] warning: crate-level attribute should be in the root module [INFO] [stderr] --> src/notes/alpha.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(dyn_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 20 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 13.32s [INFO] running `"docker" "inspect" "a57e17ac0fe37391c717190aa998c124a964c8456a4365d5b9d85f21f4377b8f"` [INFO] running `"docker" "rm" "-f" "a57e17ac0fe37391c717190aa998c124a964c8456a4365d5b9d85f21f4377b8f"` [INFO] [stdout] a57e17ac0fe37391c717190aa998c124a964c8456a4365d5b9d85f21f4377b8f [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.44.0" "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] 7f2762c60cea3383febdb337e943d63197187c673df9cbfa076461d5a40bff6d [INFO] running `"docker" "start" "-a" "7f2762c60cea3383febdb337e943d63197187c673df9cbfa076461d5a40bff6d"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling cookbook v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/notes/alpha.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::Ordering` [INFO] [stderr] --> src/notes/copy_trait.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cmp::Ordering; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Div`, `Mul`, `Sub` [INFO] [stderr] --> src/notes/op_rhs.rs:1:21 [INFO] [stderr] | [INFO] [stderr] 1 | use std::ops::{Add, Div, Mul, Sub}; [INFO] [stderr] | ^^^ ^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `notes::alpha` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use notes::alpha; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/main.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 16 | process::exit(-1); [INFO] [stderr] | ----------------- any code following this expression is unreachable [INFO] [stderr] 17 | command::try_with_test_param(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `status` [INFO] [stderr] --> src/command.rs:38:13 [INFO] [stderr] | [INFO] [stderr] 38 | status, [INFO] [stderr] | ^^^^^^ help: try ignoring the field: `status: _` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stderr` [INFO] [stderr] --> src/command.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | stderr, [INFO] [stderr] | ^^^^^^ help: try ignoring the field: `stderr: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p_duck` [INFO] [stderr] --> src/notes/alpha.rs:24:22 [INFO] [stderr] | [INFO] [stderr] 24 | fn print_traitobject(p_duck: &dyn Bird) { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_duck` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `d3` [INFO] [stderr] --> src/notes/alpha.rs:32:9 [INFO] [stderr] | [INFO] [stderr] 32 | let d3 = d2 as &dyn Bird; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_d3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/notes/copy_trait.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let v2 = v1; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm.rs:93:9 [INFO] [stderr] | [INFO] [stderr] 93 | let mut rng = rand::thread_rng(); [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: function is never used: `gen_a_u8_num` [INFO] [stderr] --> src/algorithm.rs:36:8 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn gen_a_u8_num() -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gen_a_i32_num` [INFO] [stderr] --> src/algorithm.rs:45:8 [INFO] [stderr] | [INFO] [stderr] 45 | pub fn gen_a_i32_num() -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gen_random_within_range` [INFO] [stderr] --> src/algorithm.rs:53:8 [INFO] [stderr] | [INFO] [stderr] 53 | pub fn gen_random_within_range(min: isize, max: isize) -> isize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_traitobject` [INFO] [stderr] --> src/notes/alpha.rs:24:4 [INFO] [stderr] | [INFO] [stderr] 24 | fn print_traitobject(p_duck: &dyn Bird) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/notes/alpha.rs:29:8 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused attribute [INFO] [stderr] --> src/notes/alpha.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(dyn_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_attributes)]` on by default [INFO] [stderr] [INFO] [stderr] warning: crate-level attribute should be in the root module [INFO] [stderr] --> src/notes/alpha.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(dyn_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 18 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.63s [INFO] running `"docker" "inspect" "7f2762c60cea3383febdb337e943d63197187c673df9cbfa076461d5a40bff6d"` [INFO] running `"docker" "rm" "-f" "7f2762c60cea3383febdb337e943d63197187c673df9cbfa076461d5a40bff6d"` [INFO] [stdout] 7f2762c60cea3383febdb337e943d63197187c673df9cbfa076461d5a40bff6d [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.44.0" "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] 9e231766a76816fe4438face82de211a9a72f7df284d6c86610ad935e35acf4a [INFO] running `"docker" "start" "-a" "9e231766a76816fe4438face82de211a9a72f7df284d6c86610ad935e35acf4a"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/notes/alpha.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::Ordering` [INFO] [stderr] --> src/notes/copy_trait.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cmp::Ordering; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Div`, `Mul`, `Sub` [INFO] [stderr] --> src/notes/op_rhs.rs:1:21 [INFO] [stderr] | [INFO] [stderr] 1 | use std::ops::{Add, Div, Mul, Sub}; [INFO] [stderr] | ^^^ ^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `notes::alpha` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use notes::alpha; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/main.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 16 | process::exit(-1); [INFO] [stderr] | ----------------- any code following this expression is unreachable [INFO] [stderr] 17 | command::try_with_test_param(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `status` [INFO] [stderr] --> src/command.rs:38:13 [INFO] [stderr] | [INFO] [stderr] 38 | status, [INFO] [stderr] | ^^^^^^ help: try ignoring the field: `status: _` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stderr` [INFO] [stderr] --> src/command.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | stderr, [INFO] [stderr] | ^^^^^^ help: try ignoring the field: `stderr: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p_duck` [INFO] [stderr] --> src/notes/alpha.rs:24:22 [INFO] [stderr] | [INFO] [stderr] 24 | fn print_traitobject(p_duck: &dyn Bird) { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_duck` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `d3` [INFO] [stderr] --> src/notes/alpha.rs:32:9 [INFO] [stderr] | [INFO] [stderr] 32 | let d3 = d2 as &dyn Bird; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_d3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/notes/copy_trait.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let v2 = v1; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm.rs:93:9 [INFO] [stderr] | [INFO] [stderr] 93 | let mut rng = rand::thread_rng(); [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: function is never used: `gen_a_u8_num` [INFO] [stderr] --> src/algorithm.rs:36:8 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn gen_a_u8_num() -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gen_a_i32_num` [INFO] [stderr] --> src/algorithm.rs:45:8 [INFO] [stderr] | [INFO] [stderr] 45 | pub fn gen_a_i32_num() -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gen_random_within_range` [INFO] [stderr] --> src/algorithm.rs:53:8 [INFO] [stderr] | [INFO] [stderr] 53 | pub fn gen_random_within_range(min: isize, max: isize) -> isize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_traitobject` [INFO] [stderr] --> src/notes/alpha.rs:24:4 [INFO] [stderr] | [INFO] [stderr] 24 | fn print_traitobject(p_duck: &dyn Bird) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/notes/alpha.rs:29:8 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused attribute [INFO] [stderr] --> src/notes/alpha.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(dyn_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_attributes)]` on by default [INFO] [stderr] [INFO] [stderr] warning: crate-level attribute should be in the root module [INFO] [stderr] --> src/notes/alpha.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(dyn_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 18 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/cookbook-914f628f0b1bb624 [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test notes::op_rhs::tests::test_point_add ... ok [INFO] [stdout] test algorithm::tests::test_float_sort ... ok [INFO] [stdout] test algorithm::test_get_random_string_from_customer_str ... ok [INFO] [stdout] test notes::op_rhs::tests::test_vec_plus ... ok [INFO] [stdout] test algorithm::test_get_random_string ... ok [INFO] [stderr] error: test failed, to rerun pass '--bin cookbook' [INFO] [stdout] test algorithm::tests::test_int_sort ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- algorithm::tests::test_int_sort stdout ---- [INFO] [stdout] the num is:[21, 32, 43, 67, 90, 98, 121] [INFO] [stdout] thread 'algorithm::tests::test_int_sort' panicked at 'assertion failed: false', src/algorithm.rs:18:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5578612fff24 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x5578612fff24 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x5578612fff24 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x5578612fff24 - ::fmt::h41a0a93ab85e6aa1 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x557861328f3c - core::fmt::write::hdaea18585065a96d [INFO] [stdout] at src/libcore/fmt/mod.rs:1069 [INFO] [stdout] 5: 0x55786125a085 - std::io::Write::write_fmt::h42f0550b6bd39c6e [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/io/mod.rs:1504 [INFO] [stdout] 6: 0x5578612fa511 - std::io::impls::>::write_fmt::h223d7b7033cad46d [INFO] [stdout] at src/libstd/io/impls.rs:156 [INFO] [stdout] 7: 0x5578613027f5 - std::sys_common::backtrace::_print::hd95f9978cc145ca4 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 8: 0x5578613027f5 - std::sys_common::backtrace::print::hfb25ca2291be47d0 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 9: 0x5578613027f5 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 10: 0x5578613024db - std::panicking::default_hook::h198e1a712910f1e6 [INFO] [stdout] at src/libstd/panicking.rs:215 [INFO] [stdout] 11: 0x557861302e52 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d [INFO] [stdout] at src/libstd/panicking.rs:511 [INFO] [stdout] 12: 0x5578612abb91 - std::panicking::begin_panic::h251cdcbaa513472f [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:438 [INFO] [stdout] 13: 0x557861250f12 - cookbook::algorithm::tests::test_int_sort::hcfc5489ee1679ee5 [INFO] [stdout] at src/algorithm.rs:18 [INFO] [stdout] 14: 0x557861250eda - cookbook::algorithm::tests::test_int_sort::{{closure}}::h1e39878d7274fa88 [INFO] [stdout] at src/algorithm.rs:16 [INFO] [stdout] 15: 0x55786125432e - core::ops::function::FnOnce::call_once::h3892bf8f7e53c9c0 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232 [INFO] [stdout] 16: 0x557861281516 - as core::ops::function::FnOnce>::call_once::hc165f65f4331a55c [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008 [INFO] [stdout] 17: 0x557861281516 - as core::ops::function::FnOnce<()>>::call_once::hb89f1f769cad07ce [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318 [INFO] [stdout] 18: 0x557861281516 - std::panicking::try::do_call::h104f7f3dae5a1b29 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331 [INFO] [stdout] 19: 0x557861281516 - std::panicking::try::h0e20f01361cba753 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274 [INFO] [stdout] 20: 0x557861281516 - std::panic::catch_unwind::h0bd0c84b5f4cd121 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394 [INFO] [stdout] 21: 0x557861281516 - test::run_test_in_process::hf34c22adfeb6853d [INFO] [stdout] at src/libtest/lib.rs:541 [INFO] [stdout] 22: 0x557861281516 - test::run_test::run_test_inner::{{closure}}::h40d568b4c10a12f1 [INFO] [stdout] at src/libtest/lib.rs:450 [INFO] [stdout] 23: 0x557861259536 - std::sys_common::backtrace::__rust_begin_short_backtrace::hffd9774ad3f2d778 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/sys_common/backtrace.rs:130 [INFO] [stdout] 24: 0x55786125e8c5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h4594020476cf52d4 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:475 [INFO] [stdout] 25: 0x55786125e8c5 - as core::ops::function::FnOnce<()>>::call_once::h9d0a6d45b73e29e4 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318 [INFO] [stdout] 26: 0x55786125e8c5 - std::panicking::try::do_call::h902fd77b30bb3bb7 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331 [INFO] [stdout] 27: 0x55786125e8c5 - std::panicking::try::hc17d3a628e65d49d [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274 [INFO] [stdout] 28: 0x55786125e8c5 - std::panic::catch_unwind::h9c9d49cbb6b18017 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394 [INFO] [stdout] 29: 0x55786125e8c5 - std::thread::Builder::spawn_unchecked::{{closure}}::h6a6f5a333fd631a2 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:474 [INFO] [stdout] 30: 0x55786125e8c5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha6fb197e0ce57f73 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232 [INFO] [stdout] 31: 0x55786130966a - as core::ops::function::FnOnce>::call_once::h1f1fac7de7dd9691 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008 [INFO] [stdout] 32: 0x55786130966a - as core::ops::function::FnOnce>::call_once::ha031f48633a6af54 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008 [INFO] [stdout] 33: 0x55786130966a - std::sys::unix::thread::Thread::new::thread_start::h241864caf436e182 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:87 [INFO] [stdout] 34: 0x7fe70e4f5609 - start_thread [INFO] [stdout] 35: 0x7fe70e780103 - __clone [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] algorithm::tests::test_int_sort [INFO] [stdout] [INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "9e231766a76816fe4438face82de211a9a72f7df284d6c86610ad935e35acf4a"` [INFO] running `"docker" "rm" "-f" "9e231766a76816fe4438face82de211a9a72f7df284d6c86610ad935e35acf4a"` [INFO] [stdout] 9e231766a76816fe4438face82de211a9a72f7df284d6c86610ad935e35acf4a