[INFO] updating cached repository https://github.com/maxastyler/unit-conversion
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 115db73ee4cfe2106ff66c614ef63c6c09181053
[INFO] testing maxastyler/unit-conversion against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxastyler%2Funit-conversion" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maxastyler/unit-conversion on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/maxastyler/unit-conversion
[INFO] finished tweaking git repo https://github.com/maxastyler/unit-conversion
[INFO] tweaked toml for git repo https://github.com/maxastyler/unit-conversion written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/maxastyler/unit-conversion already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 4db2e6c2b4e862c620ee47bea407c0d95c15caf3cd503fab17cfbad094adaa57
[INFO] running `"docker" "start" "-a" "4db2e6c2b4e862c620ee47bea407c0d95c15caf3cd503fab17cfbad094adaa57"`
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling unit-conversion v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  |   /// Get a number from an array of u8
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 7  | / named!(pub get_digits<i32>,
[INFO] [stderr] 8  | |     map_res!(
[INFO] [stderr] 9  | |         map_res!(digit,
[INFO] [stderr] 10 | |             from_utf8
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     )
[INFO] [stderr] 14 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | /// Match a set of lines and return a vector of tuples containing the indentation and the text
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 23 | named!(pub match_lines<Vec<&[u8]> >, alt_complete!(many1!(match_line) | value!(vec!(), ws!(eof!()))));
[INFO] [stderr]    | ------------------------------------------------------------------------------------------------------ rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:19:20
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut file = try!(File::open(file_path));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     try!(file.read_to_string(&mut f_s));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/unit.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/unit.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/unit.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `be_i32`
[INFO] [stderr]  --> src/parser.rs:1:18
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nom::{digit, be_i32, double, alpha, rest};
[INFO] [stderr]   |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]   --> src/parser.rs:52:30
[INFO] [stderr]    |
[INFO] [stderr] 52 |     use nom::IResult::{Done, Error};
[INFO] [stderr]    |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Mul`
[INFO] [stderr]  --> src/unit.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Mul, Div};
[INFO] [stderr]   |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Div`
[INFO] [stderr]  --> src/unit.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Mul, Div};
[INFO] [stderr]   |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/unit.rs:41:30
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Some(u) => { for j in 0..i.abs() {
[INFO] [stderr]    |                              ^ help: consider prefixing with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/dimension.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn matches(&self, other: &Dimension) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/dimension.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn add(&self, other: &Dimension) -> Option<Dimension> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sub`
[INFO] [stderr]   --> src/dimension.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn sub(&self, other: &Dimension) -> Option<Dimension> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pow`
[INFO] [stderr]   --> src/dimension.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn pow(&self, power: i32) -> Dimension {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `root`
[INFO] [stderr]   --> src/dimension.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn root(&self, root: i32) -> Dimension {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/quantity.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn add(&self, other: Quantity) -> Option<Quantity> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sub`
[INFO] [stderr]   --> src/quantity.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn sub(&self, other: Quantity) -> Option<Quantity> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mul`
[INFO] [stderr]   --> src/quantity.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn mul(&self, other: Quantity) -> Quantity {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `div`
[INFO] [stderr]   --> src/quantity.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn div(&self, other: Quantity) -> Quantity {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pow`
[INFO] [stderr]   --> src/unit.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn pow(&self, power: i32) -> Unit {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `root`
[INFO] [stderr]   --> src/unit.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn root(&self, root: i32) -> Unit {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `"docker" "inspect" "4db2e6c2b4e862c620ee47bea407c0d95c15caf3cd503fab17cfbad094adaa57"`
[INFO] running `"docker" "rm" "-f" "4db2e6c2b4e862c620ee47bea407c0d95c15caf3cd503fab17cfbad094adaa57"`
[INFO] [stdout] 4db2e6c2b4e862c620ee47bea407c0d95c15caf3cd503fab17cfbad094adaa57
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8be405f794424c7ef198962beb99caa737a47bc7588e0d63f1379a53e86cba99
[INFO] running `"docker" "start" "-a" "8be405f794424c7ef198962beb99caa737a47bc7588e0d63f1379a53e86cba99"`
[INFO] [stderr]    Compiling unit-conversion v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  |   /// Get a number from an array of u8
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 7  | / named!(pub get_digits<i32>,
[INFO] [stderr] 8  | |     map_res!(
[INFO] [stderr] 9  | |         map_res!(digit,
[INFO] [stderr] 10 | |             from_utf8
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     )
[INFO] [stderr] 14 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | /// Match a set of lines and return a vector of tuples containing the indentation and the text
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 23 | named!(pub match_lines<Vec<&[u8]> >, alt_complete!(many1!(match_line) | value!(vec!(), ws!(eof!()))));
[INFO] [stderr]    | ------------------------------------------------------------------------------------------------------ rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:19:20
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut file = try!(File::open(file_path));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     try!(file.read_to_string(&mut f_s));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/unit.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/unit.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/unit.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `be_i32`
[INFO] [stderr]  --> src/parser.rs:1:18
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nom::{digit, be_i32, double, alpha, rest};
[INFO] [stderr]   |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]   --> src/parser.rs:52:30
[INFO] [stderr]    |
[INFO] [stderr] 52 |     use nom::IResult::{Done, Error};
[INFO] [stderr]    |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]   --> src/parser.rs:83:34
[INFO] [stderr]    |
[INFO] [stderr] 83 |         use nom::IResult::{Done, Error};
[INFO] [stderr]    |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Mul`
[INFO] [stderr]  --> src/unit.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Mul, Div};
[INFO] [stderr]   |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Div`
[INFO] [stderr]  --> src/unit.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Mul, Div};
[INFO] [stderr]   |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/unit.rs:41:30
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Some(u) => { for j in 0..i.abs() {
[INFO] [stderr]    |                              ^ help: consider prefixing with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/dimension.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn matches(&self, other: &Dimension) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/dimension.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn add(&self, other: &Dimension) -> Option<Dimension> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sub`
[INFO] [stderr]   --> src/dimension.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn sub(&self, other: &Dimension) -> Option<Dimension> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pow`
[INFO] [stderr]   --> src/dimension.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn pow(&self, power: i32) -> Dimension {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `root`
[INFO] [stderr]   --> src/dimension.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn root(&self, root: i32) -> Dimension {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/quantity.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn add(&self, other: Quantity) -> Option<Quantity> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sub`
[INFO] [stderr]   --> src/quantity.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn sub(&self, other: Quantity) -> Option<Quantity> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mul`
[INFO] [stderr]   --> src/quantity.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn mul(&self, other: Quantity) -> Quantity {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `div`
[INFO] [stderr]   --> src/quantity.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn div(&self, other: Quantity) -> Quantity {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pow`
[INFO] [stderr]   --> src/unit.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn pow(&self, power: i32) -> Unit {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `root`
[INFO] [stderr]   --> src/unit.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn root(&self, root: i32) -> Unit {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "8be405f794424c7ef198962beb99caa737a47bc7588e0d63f1379a53e86cba99"`
[INFO] running `"docker" "rm" "-f" "8be405f794424c7ef198962beb99caa737a47bc7588e0d63f1379a53e86cba99"`
[INFO] [stdout] 8be405f794424c7ef198962beb99caa737a47bc7588e0d63f1379a53e86cba99
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "test" "--frozen"`
[INFO] [stdout] fce45aee370d1da3bb3dae019333d2657a78ea4218a0a9ac325c3b69ad3e462e
[INFO] running `"docker" "start" "-a" "fce45aee370d1da3bb3dae019333d2657a78ea4218a0a9ac325c3b69ad3e462e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unit_conversion-660e046ebae4c70b
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test parser::tests::test_get_dimensions ... ok
[INFO] [stdout] test parser::tests::test_get_int_neg ... ok
[INFO] [stdout] test parser::tests::test_get_double ... ok
[INFO] [stdout] test parser::tests::test_get_int_pos ... ok
[INFO] [stdout] test parser::tests::test_get_unit ... ok
[INFO] [stdout] test parser::tests::test_get_units ... ok
[INFO] [stdout] test parser::tests::test_input_units ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fce45aee370d1da3bb3dae019333d2657a78ea4218a0a9ac325c3b69ad3e462e"`
[INFO] running `"docker" "rm" "-f" "fce45aee370d1da3bb3dae019333d2657a78ea4218a0a9ac325c3b69ad3e462e"`
[INFO] [stdout] fce45aee370d1da3bb3dae019333d2657a78ea4218a0a9ac325c3b69ad3e462e