[INFO] updating cached repository https://github.com/ajmwagar/calc
[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] b55f230da5f96e8f4dcefe34c55133e559de521b
[INFO] testing ajmwagar/calc against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajmwagar%2Fcalc" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ajmwagar/calc on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ajmwagar/calc
[INFO] finished tweaking git repo https://github.com/ajmwagar/calc
[INFO] tweaked toml for git repo https://github.com/ajmwagar/calc written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ajmwagar/calc already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 47c3df07f177af8ed9cddd1ee88ff7098764e9da8bb89e54d2a203cf1d6980a9
[INFO] running `"docker" "start" "-a" "47c3df07f177af8ed9cddd1ee88ff7098764e9da8bb89e54d2a203cf1d6980a9"`
[INFO] [stderr]    Compiling rand_core v0.2.0
[INFO] [stderr]    Compiling rand v0.5.0
[INFO] [stderr]    Compiling calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:11:29
[INFO] [stderr]     |
[INFO] [stderr] 11  |         loop { let _ = $xs; break; }
[INFO] [stderr]     |                             ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 138 |         "Cleared!" => block!({ break; }),
[INFO] [stderr]     |                       ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:11:29
[INFO] [stderr]     |
[INFO] [stderr] 11  |         loop { let _ = $xs; break; }
[INFO] [stderr]     |                             ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 140 |         "Goodbye!" => block!({ break; }),
[INFO] [stderr]     |                       ------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:11:29
[INFO] [stderr]     |
[INFO] [stderr] 11  |         loop { let _ = $xs; break; }
[INFO] [stderr]     |                             ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 142 |         "Please enter a valid expression." => block!({ break; }),
[INFO] [stderr]     |                                               ------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:218:5
[INFO] [stderr]     |
[INFO] [stderr] 218 |     return "Goodbye!".to_string();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string_help`
[INFO] [stderr]    --> src/main.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |     let string_help = HELP.to_string();
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_string_help`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `print`
[INFO] [stderr]    --> src/main.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     let print: bool;
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_print`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:160:21
[INFO] [stderr]     |
[INFO] [stderr] 160 | fn parse(s: String, mut ans: f64) -> String {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `"docker" "inspect" "47c3df07f177af8ed9cddd1ee88ff7098764e9da8bb89e54d2a203cf1d6980a9"`
[INFO] running `"docker" "rm" "-f" "47c3df07f177af8ed9cddd1ee88ff7098764e9da8bb89e54d2a203cf1d6980a9"`
[INFO] [stdout] 47c3df07f177af8ed9cddd1ee88ff7098764e9da8bb89e54d2a203cf1d6980a9
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6fd7188c470e8aa3af4493c5a4dfcf2a2e4b57045f1bbcf414cafc9e7aec348c
[INFO] running `"docker" "start" "-a" "6fd7188c470e8aa3af4493c5a4dfcf2a2e4b57045f1bbcf414cafc9e7aec348c"`
[INFO] [stderr]    Compiling calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:11:29
[INFO] [stderr]     |
[INFO] [stderr] 11  |         loop { let _ = $xs; break; }
[INFO] [stderr]     |                             ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 138 |         "Cleared!" => block!({ break; }),
[INFO] [stderr]     |                       ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:11:29
[INFO] [stderr]     |
[INFO] [stderr] 11  |         loop { let _ = $xs; break; }
[INFO] [stderr]     |                             ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 140 |         "Goodbye!" => block!({ break; }),
[INFO] [stderr]     |                       ------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:11:29
[INFO] [stderr]     |
[INFO] [stderr] 11  |         loop { let _ = $xs; break; }
[INFO] [stderr]     |                             ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 142 |         "Please enter a valid expression." => block!({ break; }),
[INFO] [stderr]     |                                               ------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:218:5
[INFO] [stderr]     |
[INFO] [stderr] 218 |     return "Goodbye!".to_string();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string_help`
[INFO] [stderr]    --> src/main.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |     let string_help = HELP.to_string();
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_string_help`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `print`
[INFO] [stderr]    --> src/main.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     let print: bool;
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_print`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:160:21
[INFO] [stderr]     |
[INFO] [stderr] 160 | fn parse(s: String, mut ans: f64) -> String {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "6fd7188c470e8aa3af4493c5a4dfcf2a2e4b57045f1bbcf414cafc9e7aec348c"`
[INFO] running `"docker" "rm" "-f" "6fd7188c470e8aa3af4493c5a4dfcf2a2e4b57045f1bbcf414cafc9e7aec348c"`
[INFO] [stdout] 6fd7188c470e8aa3af4493c5a4dfcf2a2e4b57045f1bbcf414cafc9e7aec348c
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 12746439a92ffff3cea06d4ca5a5383d8733e98c4db06f0372c80393340410e4
[INFO] running `"docker" "start" "-a" "12746439a92ffff3cea06d4ca5a5383d8733e98c4db06f0372c80393340410e4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/calc-a1effd137cd6edb7
[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" "12746439a92ffff3cea06d4ca5a5383d8733e98c4db06f0372c80393340410e4"`
[INFO] running `"docker" "rm" "-f" "12746439a92ffff3cea06d4ca5a5383d8733e98c4db06f0372c80393340410e4"`
[INFO] [stdout] 12746439a92ffff3cea06d4ca5a5383d8733e98c4db06f0372c80393340410e4