Nov 27 20:41:38.115 INFO checking sergorl/merkle_hash_tree against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 20:41:38.117 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 27 20:41:38.532 INFO [stdout] 598251be36e01f7df30ab8f860de4690f3a9175d5000d07e09f8af287adc2013
Nov 27 20:41:38.535 INFO running `"docker" "start" "-a" "598251be36e01f7df30ab8f860de4690f3a9175d5000d07e09f8af287adc2013"`
Nov 27 20:41:39.735 INFO [stderr] usermod: no changes
Nov 27 20:41:39.908 INFO [stderr]     Checking num_cpus v0.2.13
Nov 27 20:41:39.921 INFO [stderr]     Checking rust-crypto v0.2.36
Nov 27 20:41:39.921 INFO [stderr]     Checking rayon v0.9.0
Nov 27 20:41:48.106 INFO [stderr]     Checking merkle_hash_tree v0.1.0 (/source)
Nov 27 20:41:48.657 INFO [stderr] warning: unused variable: `num_thread`
Nov 27 20:41:48.657 INFO [stderr]    --> src/lib.rs:272:13
Nov 27 20:41:48.657 INFO [stderr]     |
Nov 27 20:41:48.657 INFO [stderr] 272 |         let num_thread: usize;
Nov 27 20:41:48.657 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_num_thread` instead
Nov 27 20:41:48.657 INFO [stderr]     |
Nov 27 20:41:48.657 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 27 20:41:48.657 INFO [stderr] 
Nov 27 20:41:48.657 INFO [stderr] warning: unused variable: `num_cpus`
Nov 27 20:41:48.657 INFO [stderr]    --> src/lib.rs:255:78
Nov 27 20:41:48.657 INFO [stderr]     |
Nov 27 20:41:48.657 INFO [stderr] 255 | fn create_hash_level(hash_tree: &mut Vec<Vec<u8>>, pool: &rayon::ThreadPool, num_cpus: usize) {
Nov 27 20:41:48.657 INFO [stderr]     |                                                                              ^^^^^^^^ help: consider using `_num_cpus` instead
Nov 27 20:41:48.657 INFO [stderr] 
Nov 27 20:41:48.657 INFO [stderr] warning: unused variable: `num_cpus`
Nov 27 20:41:48.657 INFO [stderr]    --> src/lib.rs:305:5
Nov 27 20:41:48.657 INFO [stderr]     |
Nov 27 20:41:48.657 INFO [stderr] 305 |     num_cpus: usize,
Nov 27 20:41:48.657 INFO [stderr]     |     ^^^^^^^^ help: consider using `_num_cpus` instead
Nov 27 20:41:48.657 INFO [stderr] 
Nov 27 20:41:48.780 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:41:48.780 INFO [stderr]    --> src/lib.rs:158:9
Nov 27 20:41:48.780 INFO [stderr]     |
Nov 27 20:41:48.780 INFO [stderr] 158 |         write!(f, "{}\n", "Tree: ");
Nov 27 20:41:48.780 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:48.780 INFO [stderr]     |
Nov 27 20:41:48.780 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 27 20:41:48.780 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:41:48.780 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 20:41:48.780 INFO [stderr] 
Nov 27 20:41:48.780 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:41:48.780 INFO [stderr]    --> src/lib.rs:161:13
Nov 27 20:41:48.781 INFO [stderr]     |
Nov 27 20:41:48.781 INFO [stderr] 161 |             write!(f, "Level {}: \n", level);
Nov 27 20:41:48.781 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:48.781 INFO [stderr]     |
Nov 27 20:41:48.781 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:41:48.781 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 20:41:48.781 INFO [stderr] 
Nov 27 20:41:48.781 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:41:48.781 INFO [stderr]    --> src/lib.rs:164:17
Nov 27 20:41:48.781 INFO [stderr]     |
Nov 27 20:41:48.781 INFO [stderr] 164 |                 write!(f, "hash {}: {}\n", index, to_hex_string(hash));
Nov 27 20:41:48.781 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:48.781 INFO [stderr]     |
Nov 27 20:41:48.781 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:41:48.781 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 20:41:48.781 INFO [stderr] 
Nov 27 20:41:48.781 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:41:48.781 INFO [stderr]    --> src/lib.rs:170:13
Nov 27 20:41:48.781 INFO [stderr]     |
Nov 27 20:41:48.781 INFO [stderr] 170 | /             write!(
Nov 27 20:41:48.781 INFO [stderr] 171 | |                 f,
Nov 27 20:41:48.781 INFO [stderr] 172 | |                 "{}\n",
Nov 27 20:41:48.781 INFO [stderr] 173 | |                 "--------------------------------------------------------------------"
Nov 27 20:41:48.781 INFO [stderr] 174 | |             );
Nov 27 20:41:48.781 INFO [stderr]     | |______________^
Nov 27 20:41:48.781 INFO [stderr]     |
Nov 27 20:41:48.781 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:41:48.781 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 20:41:48.781 INFO [stderr] 
Nov 27 20:41:48.980 INFO [stderr] warning: unused variable: `num_thread`
Nov 27 20:41:48.980 INFO [stderr]    --> src/lib.rs:272:13
Nov 27 20:41:48.980 INFO [stderr]     |
Nov 27 20:41:48.980 INFO [stderr] 272 |         let num_thread: usize;
Nov 27 20:41:48.980 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_num_thread` instead
Nov 27 20:41:49.004 INFO [stderr]     |
Nov 27 20:41:49.004 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 27 20:41:49.004 INFO [stderr] 
Nov 27 20:41:49.004 INFO [stderr] warning: unused variable: `num_cpus`
Nov 27 20:41:49.004 INFO [stderr]    --> src/lib.rs:255:78
Nov 27 20:41:49.004 INFO [stderr]     |
Nov 27 20:41:49.004 INFO [stderr] 255 | fn create_hash_level(hash_tree: &mut Vec<Vec<u8>>, pool: &rayon::ThreadPool, num_cpus: usize) {
Nov 27 20:41:49.004 INFO [stderr]     |                                                                              ^^^^^^^^ help: consider using `_num_cpus` instead
Nov 27 20:41:49.004 INFO [stderr] 
Nov 27 20:41:49.004 INFO [stderr] warning: unused variable: `num_cpus`
Nov 27 20:41:49.004 INFO [stderr]    --> src/lib.rs:305:5
Nov 27 20:41:49.004 INFO [stderr]     |
Nov 27 20:41:49.004 INFO [stderr] 305 |     num_cpus: usize,
Nov 27 20:41:49.004 INFO [stderr]     |     ^^^^^^^^ help: consider using `_num_cpus` instead
Nov 27 20:41:49.004 INFO [stderr] 
Nov 27 20:41:49.192 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:41:49.192 INFO [stderr]    --> src/lib.rs:158:9
Nov 27 20:41:49.192 INFO [stderr]     |
Nov 27 20:41:49.192 INFO [stderr] 158 |         write!(f, "{}\n", "Tree: ");
Nov 27 20:41:49.192 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:49.224 INFO [stderr]     |
Nov 27 20:41:49.224 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 27 20:41:49.224 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:41:49.224 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 20:41:49.224 INFO [stderr] 
Nov 27 20:41:49.224 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:41:49.224 INFO [stderr]    --> src/lib.rs:161:13
Nov 27 20:41:49.224 INFO [stderr]     |
Nov 27 20:41:49.224 INFO [stderr] 161 |             write!(f, "Level {}: \n", level);
Nov 27 20:41:49.224 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:49.224 INFO [stderr]     |
Nov 27 20:41:49.224 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:41:49.224 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 20:41:49.225 INFO [stderr] 
Nov 27 20:41:49.225 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:41:49.225 INFO [stderr]    --> src/lib.rs:164:17
Nov 27 20:41:49.225 INFO [stderr]     |
Nov 27 20:41:49.225 INFO [stderr] 164 |                 write!(f, "hash {}: {}\n", index, to_hex_string(hash));
Nov 27 20:41:49.225 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:49.225 INFO [stderr]     |
Nov 27 20:41:49.225 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:41:49.225 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 20:41:49.225 INFO [stderr] 
Nov 27 20:41:49.225 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:41:49.225 INFO [stderr]    --> src/lib.rs:170:13
Nov 27 20:41:49.225 INFO [stderr]     |
Nov 27 20:41:49.225 INFO [stderr] 170 | /             write!(
Nov 27 20:41:49.225 INFO [stderr] 171 | |                 f,
Nov 27 20:41:49.225 INFO [stderr] 172 | |                 "{}\n",
Nov 27 20:41:49.225 INFO [stderr] 173 | |                 "--------------------------------------------------------------------"
Nov 27 20:41:49.225 INFO [stderr] 174 | |             );
Nov 27 20:41:49.225 INFO [stderr]     | |______________^
Nov 27 20:41:49.225 INFO [stderr]     |
Nov 27 20:41:49.225 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:41:49.225 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 20:41:49.225 INFO [stderr] 
Nov 27 20:41:50.082 INFO [stderr] warning: unused import: `crypto::digest::Digest`
Nov 27 20:41:50.082 INFO [stderr]   --> tests/test.rs:10:5
Nov 27 20:41:50.082 INFO [stderr]    |
Nov 27 20:41:50.082 INFO [stderr] 10 | use crypto::digest::Digest;
Nov 27 20:41:50.082 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:50.082 INFO [stderr]    |
Nov 27 20:41:50.082 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 27 20:41:50.082 INFO [stderr] 
Nov 27 20:41:50.082 INFO [stderr] warning: unused import: `rand::Rng`
Nov 27 20:41:50.082 INFO [stderr]   --> tests/test.rs:12:5
Nov 27 20:41:50.082 INFO [stderr]    |
Nov 27 20:41:50.082 INFO [stderr] 12 | use rand::Rng;
Nov 27 20:41:50.082 INFO [stderr]    |     ^^^^^^^^^
Nov 27 20:41:50.082 INFO [stderr] 
Nov 27 20:41:50.096 INFO [stderr] warning: unused import: `merkle_tree::to_hex_string`
Nov 27 20:41:50.096 INFO [stderr]  --> src/main.rs:6:5
Nov 27 20:41:50.097 INFO [stderr]   |
Nov 27 20:41:50.097 INFO [stderr] 6 | use merkle_tree::to_hex_string;
Nov 27 20:41:50.097 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:50.104 INFO [stderr]   |
Nov 27 20:41:50.104 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 20:41:50.104 INFO [stderr] 
Nov 27 20:41:50.233 INFO [stderr] warning: unused variable: `start`
Nov 27 20:41:50.233 INFO [stderr]   --> src/main.rs:23:9
Nov 27 20:41:50.233 INFO [stderr]    |
Nov 27 20:41:50.234 INFO [stderr] 23 |     let start = PreciseTime::now();
Nov 27 20:41:50.234 INFO [stderr]    |         ^^^^^ help: consider using `_start` instead
Nov 27 20:41:50.249 INFO [stderr]    |
Nov 27 20:41:50.249 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 20:41:50.249 INFO [stderr] 
Nov 27 20:41:50.250 INFO [stderr] warning: unused variable: `end`
Nov 27 20:41:50.250 INFO [stderr]   --> src/main.rs:25:9
Nov 27 20:41:50.250 INFO [stderr]    |
Nov 27 20:41:50.251 INFO [stderr] 25 |     let end = PreciseTime::now();
Nov 27 20:41:50.251 INFO [stderr]    |         ^^^ help: consider using `_end` instead
Nov 27 20:41:50.251 INFO [stderr] 
Nov 27 20:41:50.252 INFO [stderr] warning: variable does not need to be mutable
Nov 27 20:41:50.253 INFO [stderr]   --> src/main.rs:18:9
Nov 27 20:41:50.253 INFO [stderr]    |
Nov 27 20:41:50.253 INFO [stderr] 18 |     let mut num_block: usize = 8 * 2;
Nov 27 20:41:50.253 INFO [stderr]    |         ----^^^^^^^^^
Nov 27 20:41:50.254 INFO [stderr]    |         |
Nov 27 20:41:50.254 INFO [stderr]    |         help: remove this `mut`
Nov 27 20:41:50.280 INFO [stderr]    |
Nov 27 20:41:50.280 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 20:41:50.280 INFO [stderr] 
Nov 27 20:41:50.280 INFO [stderr] warning: variable does not need to be mutable
Nov 27 20:41:50.280 INFO [stderr]   --> src/main.rs:19:9
Nov 27 20:41:50.280 INFO [stderr]    |
Nov 27 20:41:50.280 INFO [stderr] 19 |     let mut size_block: usize = 32;
Nov 27 20:41:50.280 INFO [stderr]    |         ----^^^^^^^^^^
Nov 27 20:41:50.280 INFO [stderr]    |         |
Nov 27 20:41:50.280 INFO [stderr]    |         help: remove this `mut`
Nov 27 20:41:50.280 INFO [stderr] 
Nov 27 20:41:50.309 INFO [stderr] warning: unused import: `merkle_tree::to_hex_string`
Nov 27 20:41:50.309 INFO [stderr]  --> src/main.rs:6:5
Nov 27 20:41:50.309 INFO [stderr]   |
Nov 27 20:41:50.309 INFO [stderr] 6 | use merkle_tree::to_hex_string;
Nov 27 20:41:50.309 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:41:50.309 INFO [stderr]   |
Nov 27 20:41:50.309 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 20:41:50.309 INFO [stderr] 
Nov 27 20:41:50.352 INFO [stderr] warning: unused import: `rand::Rng`
Nov 27 20:41:50.352 INFO [stderr]  --> benches/bench.rs:9:5
Nov 27 20:41:50.352 INFO [stderr]   |
Nov 27 20:41:50.352 INFO [stderr] 9 | use rand::Rng;
Nov 27 20:41:50.352 INFO [stderr]   |     ^^^^^^^^^
Nov 27 20:41:50.352 INFO [stderr]   |
Nov 27 20:41:50.352 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 20:41:50.352 INFO [stderr] 
Nov 27 20:41:50.427 INFO [stderr] warning: unused variable: `start`
Nov 27 20:41:50.427 INFO [stderr]   --> src/main.rs:23:9
Nov 27 20:41:50.427 INFO [stderr]    |
Nov 27 20:41:50.427 INFO [stderr] 23 |     let start = PreciseTime::now();
Nov 27 20:41:50.427 INFO [stderr]    |         ^^^^^ help: consider using `_start` instead
Nov 27 20:41:50.445 INFO [stderr]    |
Nov 27 20:41:50.445 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 20:41:50.445 INFO [stderr] 
Nov 27 20:41:50.445 INFO [stderr] warning: unused variable: `end`
Nov 27 20:41:50.445 INFO [stderr]   --> src/main.rs:25:9
Nov 27 20:41:50.445 INFO [stderr]    |
Nov 27 20:41:50.445 INFO [stderr] 25 |     let end = PreciseTime::now();
Nov 27 20:41:50.445 INFO [stderr]    |         ^^^ help: consider using `_end` instead
Nov 27 20:41:50.445 INFO [stderr] 
Nov 27 20:41:50.448 INFO [stderr] warning: variable does not need to be mutable
Nov 27 20:41:50.448 INFO [stderr]   --> src/main.rs:18:9
Nov 27 20:41:50.448 INFO [stderr]    |
Nov 27 20:41:50.448 INFO [stderr] 18 |     let mut num_block: usize = 8 * 2;
Nov 27 20:41:50.448 INFO [stderr]    |         ----^^^^^^^^^
Nov 27 20:41:50.448 INFO [stderr]    |         |
Nov 27 20:41:50.448 INFO [stderr]    |         help: remove this `mut`
Nov 27 20:41:50.448 INFO [stderr]    |
Nov 27 20:41:50.448 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 20:41:50.448 INFO [stderr] 
Nov 27 20:41:50.448 INFO [stderr] warning: variable does not need to be mutable
Nov 27 20:41:50.448 INFO [stderr]   --> src/main.rs:19:9
Nov 27 20:41:50.448 INFO [stderr]    |
Nov 27 20:41:50.448 INFO [stderr] 19 |     let mut size_block: usize = 32;
Nov 27 20:41:50.448 INFO [stderr]    |         ----^^^^^^^^^^
Nov 27 20:41:50.448 INFO [stderr]    |         |
Nov 27 20:41:50.448 INFO [stderr]    |         help: remove this `mut`
Nov 27 20:41:50.448 INFO [stderr] 
Nov 27 20:41:50.636 INFO [stderr] warning: unused variable: `tree`
Nov 27 20:41:50.636 INFO [stderr]   --> tests/test.rs:66:13
Nov 27 20:41:50.636 INFO [stderr]    |
Nov 27 20:41:50.636 INFO [stderr] 66 |         let tree = MerkleTree::new(&data, num_cpus::get());
Nov 27 20:41:50.636 INFO [stderr]    |             ^^^^ help: consider using `_tree` instead
Nov 27 20:41:50.636 INFO [stderr]    |
Nov 27 20:41:50.636 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 20:41:50.636 INFO [stderr] 
Nov 27 20:41:50.636 INFO [stderr] warning: unused variable: `tree`
Nov 27 20:41:50.636 INFO [stderr]   --> tests/test.rs:74:13
Nov 27 20:41:50.636 INFO [stderr]    |
Nov 27 20:41:50.636 INFO [stderr] 74 |         let tree = MerkleTree::new(&data, num_cpus::get());
Nov 27 20:41:50.636 INFO [stderr]    |             ^^^^ help: consider using `_tree` instead
Nov 27 20:41:50.636 INFO [stderr] 
Nov 27 20:41:50.636 INFO [stderr] warning: unused variable: `tree`
Nov 27 20:41:50.636 INFO [stderr]   --> tests/test.rs:82:13
Nov 27 20:41:50.636 INFO [stderr]    |
Nov 27 20:41:50.636 INFO [stderr] 82 |         let tree = MerkleTree::new(&data, num_cpus::get());
Nov 27 20:41:50.636 INFO [stderr]    |             ^^^^ help: consider using `_tree` instead
Nov 27 20:41:50.636 INFO [stderr] 
Nov 27 20:41:50.745 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.99s
Nov 27 20:41:50.749 INFO [stderr] su: No module specific data is present
Nov 27 20:41:51.632 INFO running `"docker" "inspect" "598251be36e01f7df30ab8f860de4690f3a9175d5000d07e09f8af287adc2013"`
Nov 27 20:41:51.918 INFO running `"docker" "rm" "-f" "598251be36e01f7df30ab8f860de4690f3a9175d5000d07e09f8af287adc2013"`
Nov 27 20:41:52.256 INFO [stdout] 598251be36e01f7df30ab8f860de4690f3a9175d5000d07e09f8af287adc2013