[INFO] cloning repository https://github.com/alexvesey/fizzbuzz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexvesey/fizzbuzz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexvesey%2Ffizzbuzz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexvesey%2Ffizzbuzz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61ed2f4d9d924b1655628d6886b7597f5ff92d29
[INFO] testing alexvesey/fizzbuzz against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexvesey%2Ffizzbuzz" "/workspace/builds/worker-119/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-119/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexvesey/fizzbuzz on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexvesey/fizzbuzz
[INFO] finished tweaking git repo https://github.com/alexvesey/fizzbuzz
[INFO] tweaked toml for git repo https://github.com/alexvesey/fizzbuzz written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] crate git repo https://github.com/alexvesey/fizzbuzz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bf5a5a9d2cab7cf938cf8f4eb351e7614632d03382f98bf4163eccd037637bb
[INFO] running `Command { std: "docker" "start" "-a" "8bf5a5a9d2cab7cf938cf8f4eb351e7614632d03382f98bf4163eccd037637bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bf5a5a9d2cab7cf938cf8f4eb351e7614632d03382f98bf4163eccd037637bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bf5a5a9d2cab7cf938cf8f4eb351e7614632d03382f98bf4163eccd037637bb", kill_on_drop: false }`
[INFO] [stdout] 8bf5a5a9d2cab7cf938cf8f4eb351e7614632d03382f98bf4163eccd037637bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1a2c954f23ef78f1f07d8fcc924af8732ed6e02be6e4d739fdfdca914d40922
[INFO] running `Command { std: "docker" "start" "-a" "e1a2c954f23ef78f1f07d8fcc924af8732ed6e02be6e4d739fdfdca914d40922", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fizzbuzz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |         if ( i % 3 == 0) { output += "Fizz"}
[INFO] [stdout]   |            ^^          ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 4 -         if ( i % 3 == 0) { output += "Fizz"}
[INFO] [stdout] 4 +         if i % 3 == 0 { output += "Fizz"}
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |         if ( i % 5 == 0) { output += "Buzz"}
[INFO] [stdout]   |            ^^          ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 5 -         if ( i % 5 == 0) { output += "Buzz"}
[INFO] [stdout] 5 +         if i % 5 == 0 { output += "Buzz"}
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |         if (output == "") {output += &i.to_string()}
[INFO] [stdout]   |            ^            ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 -         if (output == "") {output += &i.to_string()}
[INFO] [stdout] 6 +         if output == "" {output += &i.to_string()}
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "e1a2c954f23ef78f1f07d8fcc924af8732ed6e02be6e4d739fdfdca914d40922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1a2c954f23ef78f1f07d8fcc924af8732ed6e02be6e4d739fdfdca914d40922", kill_on_drop: false }`
[INFO] [stdout] e1a2c954f23ef78f1f07d8fcc924af8732ed6e02be6e4d739fdfdca914d40922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dc3c4c6fb7be39f8708d4653b4408aad346ce58829d36dc2c57f6739858ff91
[INFO] running `Command { std: "docker" "start" "-a" "8dc3c4c6fb7be39f8708d4653b4408aad346ce58829d36dc2c57f6739858ff91", kill_on_drop: false }`
[INFO] [stderr]    Compiling fizzbuzz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |         if ( i % 3 == 0) { output += "Fizz"}
[INFO] [stdout]   |            ^^          ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 4 -         if ( i % 3 == 0) { output += "Fizz"}
[INFO] [stdout] 4 +         if i % 3 == 0 { output += "Fizz"}
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |         if ( i % 5 == 0) { output += "Buzz"}
[INFO] [stdout]   |            ^^          ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 5 -         if ( i % 5 == 0) { output += "Buzz"}
[INFO] [stdout] 5 +         if i % 5 == 0 { output += "Buzz"}
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |         if (output == "") {output += &i.to_string()}
[INFO] [stdout]   |            ^            ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 -         if (output == "") {output += &i.to_string()}
[INFO] [stdout] 6 +         if output == "" {output += &i.to_string()}
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "8dc3c4c6fb7be39f8708d4653b4408aad346ce58829d36dc2c57f6739858ff91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc3c4c6fb7be39f8708d4653b4408aad346ce58829d36dc2c57f6739858ff91", kill_on_drop: false }`
[INFO] [stdout] 8dc3c4c6fb7be39f8708d4653b4408aad346ce58829d36dc2c57f6739858ff91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b5bb862e0abc02a27b36a7cc06407c5f5616188cd55f9b2737073496682b136f
[INFO] running `Command { std: "docker" "start" "-a" "b5bb862e0abc02a27b36a7cc06407c5f5616188cd55f9b2737073496682b136f", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:4:12
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 4 |         if ( i % 3 == 0) { output += "Fizz"}
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |            ^^          ^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 4 -         if ( i % 3 == 0) { output += "Fizz"}
[INFO] [stderr] 4 +         if i % 3 == 0 { output += "Fizz"}
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]  --> src/main.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 |         if ( i % 5 == 0) { output += "Buzz"}
[INFO] [stderr]   |            ^^          ^
[INFO] [stderr]   |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 5 -         if ( i % 5 == 0) { output += "Buzz"}
[INFO] [stderr] 5 +         if i % 5 == 0 { output += "Buzz"}
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]  --> src/main.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 |         if (output == "") {output += &i.to_string()}
[INFO] [stderr]   |            ^            ^
[INFO] [stderr]   |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 6 -         if (output == "") {output += &i.to_string()}
[INFO] [stderr] 6 +         if output == "" {output += &i.to_string()}
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: `fizzbuzz` (bin "fizzbuzz" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fizzbuzz-26daaf4e9340fc32)
[INFO] running `Command { std: "docker" "inspect" "b5bb862e0abc02a27b36a7cc06407c5f5616188cd55f9b2737073496682b136f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5bb862e0abc02a27b36a7cc06407c5f5616188cd55f9b2737073496682b136f", kill_on_drop: false }`
[INFO] [stdout] b5bb862e0abc02a27b36a7cc06407c5f5616188cd55f9b2737073496682b136f