Dec 01 02:52:07.099 INFO testing sergorl/merkle_hash_tree against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 01 02:52:07.100 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 02:52:07.553 INFO [stdout] 259d5e70339914940a38668bddc3abe2cf8e0dbd22fec27e585d1daa2f788ff5
Dec 01 02:52:07.559 INFO running `"docker" "start" "-a" "259d5e70339914940a38668bddc3abe2cf8e0dbd22fec27e585d1daa2f788ff5"`
Dec 01 02:52:08.839 INFO [stderr] usermod: no changes
Dec 01 02:52:08.947 INFO [stderr]    Compiling num_cpus v0.2.13
Dec 01 02:52:08.951 INFO [stderr]    Compiling rust-crypto v0.2.36
Dec 01 02:52:18.803 INFO [stderr]    Compiling merkle_hash_tree v0.1.0 (/source)
Dec 01 02:52:19.411 INFO [stderr] warning: unused variable: `num_thread`
Dec 01 02:52:19.411 INFO [stderr]    --> src/lib.rs:272:13
Dec 01 02:52:19.411 INFO [stderr]     |
Dec 01 02:52:19.411 INFO [stderr] 272 |         let num_thread: usize;
Dec 01 02:52:19.411 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_num_thread` instead
Dec 01 02:52:19.411 INFO [stderr]     |
Dec 01 02:52:19.411 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 01 02:52:19.411 INFO [stderr] 
Dec 01 02:52:19.421 INFO [stderr] warning: unused variable: `num_cpus`
Dec 01 02:52:19.421 INFO [stderr]    --> src/lib.rs:255:78
Dec 01 02:52:19.421 INFO [stderr]     |
Dec 01 02:52:19.421 INFO [stderr] 255 | fn create_hash_level(hash_tree: &mut Vec<Vec<u8>>, pool: &rayon::ThreadPool, num_cpus: usize) {
Dec 01 02:52:19.421 INFO [stderr]     |                                                                              ^^^^^^^^ help: consider using `_num_cpus` instead
Dec 01 02:52:19.421 INFO [stderr] 
Dec 01 02:52:19.421 INFO [stderr] warning: unused variable: `num_cpus`
Dec 01 02:52:19.421 INFO [stderr]    --> src/lib.rs:305:5
Dec 01 02:52:19.421 INFO [stderr]     |
Dec 01 02:52:19.421 INFO [stderr] 305 |     num_cpus: usize,
Dec 01 02:52:19.421 INFO [stderr]     |     ^^^^^^^^ help: consider using `_num_cpus` instead
Dec 01 02:52:19.421 INFO [stderr] 
Dec 01 02:52:19.456 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 01 02:52:19.456 INFO [stderr]    --> src/lib.rs:158:9
Dec 01 02:52:19.456 INFO [stderr]     |
Dec 01 02:52:19.456 INFO [stderr] 158 |         write!(f, "{}\n", "Tree: ");
Dec 01 02:52:19.456 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:52:19.456 INFO [stderr]     |
Dec 01 02:52:19.456 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 01 02:52:19.456 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 01 02:52:19.456 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)
Dec 01 02:52:19.456 INFO [stderr] 
Dec 01 02:52:19.456 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 01 02:52:19.456 INFO [stderr]    --> src/lib.rs:161:13
Dec 01 02:52:19.456 INFO [stderr]     |
Dec 01 02:52:19.456 INFO [stderr] 161 |             write!(f, "Level {}: \n", level);
Dec 01 02:52:19.456 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:52:19.456 INFO [stderr]     |
Dec 01 02:52:19.456 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 01 02:52:19.456 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)
Dec 01 02:52:19.456 INFO [stderr] 
Dec 01 02:52:19.456 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 01 02:52:19.456 INFO [stderr]    --> src/lib.rs:164:17
Dec 01 02:52:19.456 INFO [stderr]     |
Dec 01 02:52:19.456 INFO [stderr] 164 |                 write!(f, "hash {}: {}\n", index, to_hex_string(hash));
Dec 01 02:52:19.456 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:52:19.456 INFO [stderr]     |
Dec 01 02:52:19.456 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 01 02:52:19.456 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)
Dec 01 02:52:19.456 INFO [stderr] 
Dec 01 02:52:19.456 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 01 02:52:19.456 INFO [stderr]    --> src/lib.rs:170:13
Dec 01 02:52:19.456 INFO [stderr]     |
Dec 01 02:52:19.456 INFO [stderr] 170 | /             write!(
Dec 01 02:52:19.456 INFO [stderr] 171 | |                 f,
Dec 01 02:52:19.456 INFO [stderr] 172 | |                 "{}\n",
Dec 01 02:52:19.456 INFO [stderr] 173 | |                 "--------------------------------------------------------------------"
Dec 01 02:52:19.456 INFO [stderr] 174 | |             );
Dec 01 02:52:19.456 INFO [stderr]     | |______________^
Dec 01 02:52:19.456 INFO [stderr]     |
Dec 01 02:52:19.456 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 01 02:52:19.456 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)
Dec 01 02:52:19.456 INFO [stderr] 
Dec 01 02:52:20.806 INFO [stderr] warning: unused import: `merkle_tree::to_hex_string`
Dec 01 02:52:20.807 INFO [stderr]  --> src/main.rs:6:5
Dec 01 02:52:20.807 INFO [stderr]   |
Dec 01 02:52:20.808 INFO [stderr] 6 | use merkle_tree::to_hex_string;
Dec 01 02:52:20.808 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:52:20.808 INFO [stderr]   |
Dec 01 02:52:20.808 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 02:52:20.809 INFO [stderr] 
Dec 01 02:52:20.830 INFO [stderr] warning: unused variable: `start`
Dec 01 02:52:20.830 INFO [stderr]   --> src/main.rs:23:9
Dec 01 02:52:20.831 INFO [stderr]    |
Dec 01 02:52:20.831 INFO [stderr] 23 |     let start = PreciseTime::now();
Dec 01 02:52:20.831 INFO [stderr]    |         ^^^^^ help: consider using `_start` instead
Dec 01 02:52:20.832 INFO [stderr]    |
Dec 01 02:52:20.832 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 02:52:20.832 INFO [stderr] 
Dec 01 02:52:20.833 INFO [stderr] warning: unused variable: `end`
Dec 01 02:52:20.833 INFO [stderr]   --> src/main.rs:25:9
Dec 01 02:52:20.834 INFO [stderr]    |
Dec 01 02:52:20.834 INFO [stderr] 25 |     let end = PreciseTime::now();
Dec 01 02:52:20.834 INFO [stderr]    |         ^^^ help: consider using `_end` instead
Dec 01 02:52:20.835 INFO [stderr] 
Dec 01 02:52:20.835 INFO [stderr] warning: variable does not need to be mutable
Dec 01 02:52:20.835 INFO [stderr]   --> src/main.rs:18:9
Dec 01 02:52:20.836 INFO [stderr]    |
Dec 01 02:52:20.836 INFO [stderr] 18 |     let mut num_block: usize = 8 * 2;
Dec 01 02:52:20.836 INFO [stderr]    |         ----^^^^^^^^^
Dec 01 02:52:20.836 INFO [stderr]    |         |
Dec 01 02:52:20.837 INFO [stderr]    |         help: remove this `mut`
Dec 01 02:52:20.837 INFO [stderr]    |
Dec 01 02:52:20.837 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 02:52:20.838 INFO [stderr] 
Dec 01 02:52:20.838 INFO [stderr] warning: variable does not need to be mutable
Dec 01 02:52:20.838 INFO [stderr]   --> src/main.rs:19:9
Dec 01 02:52:20.839 INFO [stderr]    |
Dec 01 02:52:20.839 INFO [stderr] 19 |     let mut size_block: usize = 32;
Dec 01 02:52:20.839 INFO [stderr]    |         ----^^^^^^^^^^
Dec 01 02:52:20.840 INFO [stderr]    |         |
Dec 01 02:52:20.840 INFO [stderr]    |         help: remove this `mut`
Dec 01 02:52:20.840 INFO [stderr] 
Dec 01 02:52:21.899 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.04s
Dec 01 02:52:21.899 INFO [stderr] su: No module specific data is present
Dec 01 02:52:23.103 INFO running `"docker" "inspect" "259d5e70339914940a38668bddc3abe2cf8e0dbd22fec27e585d1daa2f788ff5"`
Dec 01 02:52:23.493 INFO running `"docker" "rm" "-f" "259d5e70339914940a38668bddc3abe2cf8e0dbd22fec27e585d1daa2f788ff5"`
Dec 01 02:52:23.731 INFO [stdout] 259d5e70339914940a38668bddc3abe2cf8e0dbd22fec27e585d1daa2f788ff5
Dec 01 02:52:23.732 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 02:52:24.233 INFO [stdout] 762f370f3d45648107832cc8beb448244e039a3d97345cbb633e23abb7f31d04
Dec 01 02:52:24.239 INFO running `"docker" "start" "-a" "762f370f3d45648107832cc8beb448244e039a3d97345cbb633e23abb7f31d04"`
Dec 01 02:52:25.611 INFO [stderr] usermod: no changes
Dec 01 02:52:25.699 INFO [stderr]    Compiling merkle_hash_tree v0.1.0 (/source)
Dec 01 02:52:26.186 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 01 02:52:26.186 INFO [stderr]  --> tests/test.rs:2:1
Dec 01 02:52:26.186 INFO [stderr]   |
Dec 01 02:52:26.186 INFO [stderr] 2 | #![feature(test)]
Dec 01 02:52:26.186 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 01 02:52:26.186 INFO [stderr] 
Dec 01 02:52:26.186 INFO [stderr] error: aborting due to previous error
Dec 01 02:52:26.186 INFO [stderr] 
Dec 01 02:52:26.186 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 02:52:26.202 INFO [stderr] warning: unused import: `merkle_tree::to_hex_string`
Dec 01 02:52:26.202 INFO [stderr]  --> src/main.rs:6:5
Dec 01 02:52:26.202 INFO [stderr]   |
Dec 01 02:52:26.202 INFO [stderr] 6 | use merkle_tree::to_hex_string;
Dec 01 02:52:26.202 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:52:26.202 INFO [stderr]   |
Dec 01 02:52:26.202 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 02:52:26.202 INFO [stderr] 
Dec 01 02:52:26.211 INFO [stderr] error: Could not compile `merkle_hash_tree`.
Dec 01 02:52:26.211 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 01 02:52:26.242 INFO [stderr] warning: unused variable: `start`
Dec 01 02:52:26.242 INFO [stderr]   --> src/main.rs:23:9
Dec 01 02:52:26.242 INFO [stderr]    |
Dec 01 02:52:26.242 INFO [stderr] 23 |     let start = PreciseTime::now();
Dec 01 02:52:26.242 INFO [stderr]    |         ^^^^^ help: consider using `_start` instead
Dec 01 02:52:26.242 INFO [stderr]    |
Dec 01 02:52:26.242 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 02:52:26.242 INFO [stderr] 
Dec 01 02:52:26.242 INFO [stderr] warning: unused variable: `end`
Dec 01 02:52:26.242 INFO [stderr]   --> src/main.rs:25:9
Dec 01 02:52:26.242 INFO [stderr]    |
Dec 01 02:52:26.242 INFO [stderr] 25 |     let end = PreciseTime::now();
Dec 01 02:52:26.242 INFO [stderr]    |         ^^^ help: consider using `_end` instead
Dec 01 02:52:26.242 INFO [stderr] 
Dec 01 02:52:26.247 INFO [stderr] warning: variable does not need to be mutable
Dec 01 02:52:26.247 INFO [stderr]   --> src/main.rs:18:9
Dec 01 02:52:26.247 INFO [stderr]    |
Dec 01 02:52:26.247 INFO [stderr] 18 |     let mut num_block: usize = 8 * 2;
Dec 01 02:52:26.247 INFO [stderr]    |         ----^^^^^^^^^
Dec 01 02:52:26.247 INFO [stderr]    |         |
Dec 01 02:52:26.247 INFO [stderr]    |         help: remove this `mut`
Dec 01 02:52:26.247 INFO [stderr]    |
Dec 01 02:52:26.247 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 02:52:26.247 INFO [stderr] 
Dec 01 02:52:26.247 INFO [stderr] warning: variable does not need to be mutable
Dec 01 02:52:26.247 INFO [stderr]   --> src/main.rs:19:9
Dec 01 02:52:26.247 INFO [stderr]    |
Dec 01 02:52:26.247 INFO [stderr] 19 |     let mut size_block: usize = 32;
Dec 01 02:52:26.247 INFO [stderr]    |         ----^^^^^^^^^^
Dec 01 02:52:26.247 INFO [stderr]    |         |
Dec 01 02:52:26.247 INFO [stderr]    |         help: remove this `mut`
Dec 01 02:52:26.247 INFO [stderr] 
Dec 01 02:52:26.747 INFO [stderr] warning: unused variable: `num_thread`
Dec 01 02:52:26.747 INFO [stderr]    --> src/lib.rs:272:13
Dec 01 02:52:26.747 INFO [stderr]     |
Dec 01 02:52:26.747 INFO [stderr] 272 |         let num_thread: usize;
Dec 01 02:52:26.747 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_num_thread` instead
Dec 01 02:52:26.747 INFO [stderr]     |
Dec 01 02:52:26.747 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 01 02:52:26.747 INFO [stderr] 
Dec 01 02:52:26.747 INFO [stderr] warning: unused variable: `num_cpus`
Dec 01 02:52:26.747 INFO [stderr]    --> src/lib.rs:255:78
Dec 01 02:52:26.747 INFO [stderr]     |
Dec 01 02:52:26.747 INFO [stderr] 255 | fn create_hash_level(hash_tree: &mut Vec<Vec<u8>>, pool: &rayon::ThreadPool, num_cpus: usize) {
Dec 01 02:52:26.747 INFO [stderr]     |                                                                              ^^^^^^^^ help: consider using `_num_cpus` instead
Dec 01 02:52:26.747 INFO [stderr] 
Dec 01 02:52:26.747 INFO [stderr] warning: unused variable: `num_cpus`
Dec 01 02:52:26.747 INFO [stderr]    --> src/lib.rs:305:5
Dec 01 02:52:26.747 INFO [stderr]     |
Dec 01 02:52:26.747 INFO [stderr] 305 |     num_cpus: usize,
Dec 01 02:52:26.748 INFO [stderr]     |     ^^^^^^^^ help: consider using `_num_cpus` instead
Dec 01 02:52:26.748 INFO [stderr] 
Dec 01 02:52:26.799 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 01 02:52:26.799 INFO [stderr]    --> src/lib.rs:158:9
Dec 01 02:52:26.799 INFO [stderr]     |
Dec 01 02:52:26.799 INFO [stderr] 158 |         write!(f, "{}\n", "Tree: ");
Dec 01 02:52:26.799 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:52:26.799 INFO [stderr]     |
Dec 01 02:52:26.799 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 01 02:52:26.799 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 01 02:52:26.799 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)
Dec 01 02:52:26.800 INFO [stderr] 
Dec 01 02:52:26.800 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 01 02:52:26.800 INFO [stderr]    --> src/lib.rs:161:13
Dec 01 02:52:26.800 INFO [stderr]     |
Dec 01 02:52:26.800 INFO [stderr] 161 |             write!(f, "Level {}: \n", level);
Dec 01 02:52:26.800 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:52:26.800 INFO [stderr]     |
Dec 01 02:52:26.800 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 01 02:52:26.800 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)
Dec 01 02:52:26.800 INFO [stderr] 
Dec 01 02:52:26.800 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 01 02:52:26.800 INFO [stderr]    --> src/lib.rs:164:17
Dec 01 02:52:26.800 INFO [stderr]     |
Dec 01 02:52:26.800 INFO [stderr] 164 |                 write!(f, "hash {}: {}\n", index, to_hex_string(hash));
Dec 01 02:52:26.800 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:52:26.800 INFO [stderr]     |
Dec 01 02:52:26.800 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 01 02:52:26.800 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)
Dec 01 02:52:26.800 INFO [stderr] 
Dec 01 02:52:26.800 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 01 02:52:26.800 INFO [stderr]    --> src/lib.rs:170:13
Dec 01 02:52:26.800 INFO [stderr]     |
Dec 01 02:52:26.800 INFO [stderr] 170 | /             write!(
Dec 01 02:52:26.801 INFO [stderr] 171 | |                 f,
Dec 01 02:52:26.801 INFO [stderr] 172 | |                 "{}\n",
Dec 01 02:52:26.801 INFO [stderr] 173 | |                 "--------------------------------------------------------------------"
Dec 01 02:52:26.801 INFO [stderr] 174 | |             );
Dec 01 02:52:26.801 INFO [stderr]     | |______________^
Dec 01 02:52:26.801 INFO [stderr]     |
Dec 01 02:52:26.801 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 01 02:52:26.801 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)
Dec 01 02:52:26.801 INFO [stderr] 
Dec 01 02:52:27.398 INFO [stderr] error: build failed
Dec 01 02:52:27.398 INFO [stderr] su: No module specific data is present
Dec 01 02:52:28.185 INFO running `"docker" "inspect" "762f370f3d45648107832cc8beb448244e039a3d97345cbb633e23abb7f31d04"`
Dec 01 02:52:28.487 INFO running `"docker" "rm" "-f" "762f370f3d45648107832cc8beb448244e039a3d97345cbb633e23abb7f31d04"`
Dec 01 02:52:28.879 INFO [stdout] 762f370f3d45648107832cc8beb448244e039a3d97345cbb633e23abb7f31d04
