[INFO] cloning repository https://github.com/nyakiomaina/command-line-calc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nyakiomaina/command-line-calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyakiomaina%2Fcommand-line-calc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyakiomaina%2Fcommand-line-calc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73e8c07a06b4d9f44a9369dbce081566f982fc93
[INFO] checking nyakiomaina/command-line-calc against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyakiomaina%2Fcommand-line-calc" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nyakiomaina/command-line-calc
[INFO] finished tweaking git repo https://github.com/nyakiomaina/command-line-calc
[INFO] tweaked toml for git repo https://github.com/nyakiomaina/command-line-calc written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nyakiomaina/command-line-calc on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nyakiomaina/command-line-calc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f
[INFO] running `Command { std: "docker" "start" "59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking calc-commandline v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `calc-commandline` (bin "calc-commandline") due to 1 previous error
[INFO] [stdout] error: useless conversion to the same type: `f64` calc_commandline
[INFO] [stdout]   --> src/main.rs:39:49
[INFO] [stdout]    |
[INFO] [stdout] 39 |           let lhs:Expression = Expression::Number(expr.pop_front().ok_or(())?.parse::<f64>()
[INFO] [stdout]    |  _________________________________________________^
[INFO] [stdout] 40 | |         .map_err(|_| ())?
[INFO] [stdout] 41 | |         .into());
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 40 -         .map_err(|_| ())?
[INFO] [stdout] 41 -         .into());
[INFO] [stdout] 40 +         .map_err(|_| ())?);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 39 ~         let lhs:Expression = Expression::Number(<f64 as Into<_>>::into(expr.pop_front().ok_or(())?.parse::<f64>()
[INFO] [stdout] 40 ~         .map_err(|_| ())?));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `f64` calc_commandline
[INFO] [stdout]   --> src/main.rs:39:49
[INFO] [stdout]    |
[INFO] [stdout] 39 |           let lhs:Expression = Expression::Number(expr.pop_front().ok_or(())?.parse::<f64>()
[INFO] [stdout]    |  _________________________________________________^
[INFO] [stdout] 40 | |         .map_err(|_| ())?
[INFO] [stdout] 41 | |         .into());
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 40 -         .map_err(|_| ())?
[INFO] [stdout] 41 -         .into());
[INFO] [stdout] 40 +         .map_err(|_| ())?);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 39 ~         let lhs:Expression = Expression::Number(<f64 as Into<_>>::into(expr.pop_front().ok_or(())?.parse::<f64>()
[INFO] [stdout] 40 ~         .map_err(|_| ())?));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `calc-commandline` (bin "calc-commandline" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f", kill_on_drop: false }`
[INFO] [stdout] 59f77d0f69f38a3dd60a6122414173a1945d349025970f4a72093ee27b45633f
