[INFO] updating cached repository https://github.com/Shyclops/calculator
[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] dc435ff53aaaefba7a9a294180c657b9694393a3
[INFO] testing Shyclops/calculator against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FShyclops%2Fcalculator" "work/builds/worker-10/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shyclops/calculator 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/Shyclops/calculator
[INFO] finished tweaking git repo https://github.com/Shyclops/calculator
[INFO] tweaked toml for git repo https://github.com/Shyclops/calculator written to work/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Shyclops/calculator 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-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/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] 292271e5295ba5e82e26d44243b8ce39f6719fbc231fb113e702d8093882c49b
[INFO] running `"docker" "start" "-a" "292271e5295ba5e82e26d44243b8ce39f6719fbc231fb113e702d8093882c49b"`
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `operators`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut operators: Vec<Expression> = Vec::new();
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_operators`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 |             Expression::Operator(o)    => {},
[INFO] [stderr]    |                                  ^ help: consider prefixing with an underscore: `_o`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:22:20
[INFO] [stderr]    |
[INFO] [stderr] 22 |             Expression::Val(v)        => output.push(ex),
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operator`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:82:19
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn get_precedence(operator: String) -> i8 {
[INFO] [stderr]    |                   ^^^^^^^^ help: consider prefixing with an underscore: `_operator`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut operators: Vec<Expression> = Vec::new();
[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: `get_precedence`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn get_precedence(operator: String) -> i8 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "292271e5295ba5e82e26d44243b8ce39f6719fbc231fb113e702d8093882c49b"`
[INFO] running `"docker" "rm" "-f" "292271e5295ba5e82e26d44243b8ce39f6719fbc231fb113e702d8093882c49b"`
[INFO] [stdout] 292271e5295ba5e82e26d44243b8ce39f6719fbc231fb113e702d8093882c49b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/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] 951a5b1e90684eb63c9c96e1d64687e7b62ee9324ed1136fe54d1d568f453acb
[INFO] running `"docker" "start" "-a" "951a5b1e90684eb63c9c96e1d64687e7b62ee9324ed1136fe54d1d568f453acb"`
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `operators`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut operators: Vec<Expression> = Vec::new();
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_operators`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 |             Expression::Operator(o)    => {},
[INFO] [stderr]    |                                  ^ help: consider prefixing with an underscore: `_o`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:22:20
[INFO] [stderr]    |
[INFO] [stderr] 22 |             Expression::Val(v)        => output.push(ex),
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operator`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:82:19
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn get_precedence(operator: String) -> i8 {
[INFO] [stderr]    |                   ^^^^^^^^ help: consider prefixing with an underscore: `_operator`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut operators: Vec<Expression> = Vec::new();
[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: `get_precedence`
[INFO] [stderr]   --> src/reverse_polish_notation/parser.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn get_precedence(operator: String) -> i8 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "951a5b1e90684eb63c9c96e1d64687e7b62ee9324ed1136fe54d1d568f453acb"`
[INFO] running `"docker" "rm" "-f" "951a5b1e90684eb63c9c96e1d64687e7b62ee9324ed1136fe54d1d568f453acb"`
[INFO] [stdout] 951a5b1e90684eb63c9c96e1d64687e7b62ee9324ed1136fe54d1d568f453acb
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/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] 4d4617ce3fe43c158cdda6facb4a8fa8d07014d5e1fa9f7fa874be7bc0cbbdd3
[INFO] running `"docker" "start" "-a" "4d4617ce3fe43c158cdda6facb4a8fa8d07014d5e1fa9f7fa874be7bc0cbbdd3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/calculator-256c39751e1ade05
[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] [stderr]      Running /opt/rustwide/target/debug/deps/calculator-a72595485436798c
[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] [stderr]    Doc-tests calculator
[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" "4d4617ce3fe43c158cdda6facb4a8fa8d07014d5e1fa9f7fa874be7bc0cbbdd3"`
[INFO] running `"docker" "rm" "-f" "4d4617ce3fe43c158cdda6facb4a8fa8d07014d5e1fa9f7fa874be7bc0cbbdd3"`
[INFO] [stdout] 4d4617ce3fe43c158cdda6facb4a8fa8d07014d5e1fa9f7fa874be7bc0cbbdd3