[INFO] fetching crate calculator-backend 0.1.14...
[INFO] checking calculator-backend-0.1.14 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate calculator-backend 0.1.14 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate calculator-backend 0.1.14
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate calculator-backend 0.1.14
[INFO] tweaked toml for crates.io crate calculator-backend 0.1.14 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate calculator-backend 0.1.14 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate calculator-backend 0.1.14 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0a6aca429a81c9ab0206642a97a57ac5a3d08a4e0006cd574c6eb7c797370b3
[INFO] running `Command { std: "docker" "start" "-a" "c0a6aca429a81c9ab0206642a97a57ac5a3d08a4e0006cd574c6eb7c797370b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0a6aca429a81c9ab0206642a97a57ac5a3d08a4e0006cd574c6eb7c797370b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a6aca429a81c9ab0206642a97a57ac5a3d08a4e0006cd574c6eb7c797370b3", kill_on_drop: false }`
[INFO] [stdout] c0a6aca429a81c9ab0206642a97a57ac5a3d08a4e0006cd574c6eb7c797370b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f70d796c8e94fcfae56a39846531951afc7f10ee08108fb5213c079bde7bcd1
[INFO] running `Command { std: "docker" "start" "-a" "2f70d796c8e94fcfae56a39846531951afc7f10ee08108fb5213c079bde7bcd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling cc v1.2.19
[INFO] [stderr]    Compiling calculator-backend v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr] warning: calculator-backend@0.1.14: c_library/calculator.c: In function 'needs_parentheses':
[INFO] [stderr] warning: calculator-backend@0.1.14: c_library/calculator.c:579:32: warning: multi-character character constant [-Wmultichar]
[INFO] [stderr] warning: calculator-backend@0.1.14:   579 |         if (op == '!' || op == '√') return true;
[INFO] [stderr] warning: calculator-backend@0.1.14:       |                                ^~~
[INFO] [stderr] warning: calculator-backend@0.1.14: c_library/calculator.c:579:29: warning: comparison is always false due to limited range of data type [-Wtype-limits]
[INFO] [stderr] warning: calculator-backend@0.1.14:   579 |         if (op == '!' || op == '√') return true;
[INFO] [stderr] warning: calculator-backend@0.1.14:       |                             ^~
[INFO] [stderr] warning: calculator-backend@0.1.14: c_library/calculator.c: In function 'apply_operator':
[INFO] [stderr] warning: calculator-backend@0.1.14: c_library/calculator.c:390:14: warning: 'result' may be used uninitialized [-Wmaybe-uninitialized]
[INFO] [stderr] warning: calculator-backend@0.1.14:   390 |     result = round_to_9_decimals(result);
[INFO] [stderr] warning: calculator-backend@0.1.14:       |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: calculator-backend@0.1.14: c_library/calculator.c:268:12: note: 'result' was declared here
[INFO] [stderr] warning: calculator-backend@0.1.14:   268 |     double result;
[INFO] [stderr] warning: calculator-backend@0.1.14:       |            ^~~~~~
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.22s
[INFO] running `Command { std: "docker" "inspect" "2f70d796c8e94fcfae56a39846531951afc7f10ee08108fb5213c079bde7bcd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f70d796c8e94fcfae56a39846531951afc7f10ee08108fb5213c079bde7bcd1", kill_on_drop: false }`
[INFO] [stdout] 2f70d796c8e94fcfae56a39846531951afc7f10ee08108fb5213c079bde7bcd1
