[INFO] fetching crate dynfractal 0.1.0...
[INFO] checking dynfractal-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate dynfractal 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate dynfractal 0.1.0
[INFO] finished tweaking crates.io crate dynfractal 0.1.0
[INFO] tweaked toml for crates.io crate dynfractal 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dynfractal 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dynfractal 0.1.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4416c3c78d46753c4f38e76dfcc30ad2106320a5427033cae3555d1f052d675
[INFO] running `Command { std: "docker" "start" "-a" "e4416c3c78d46753c4f38e76dfcc30ad2106320a5427033cae3555d1f052d675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4416c3c78d46753c4f38e76dfcc30ad2106320a5427033cae3555d1f052d675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4416c3c78d46753c4f38e76dfcc30ad2106320a5427033cae3555d1f052d675", kill_on_drop: false }`
[INFO] [stdout] e4416c3c78d46753c4f38e76dfcc30ad2106320a5427033cae3555d1f052d675
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f716354b48dfb08c1e3e2a185b33e9b8104d61e872d3a0e20fa0822c78050ed
[INFO] running `Command { std: "docker" "start" "-a" "0f716354b48dfb08c1e3e2a185b33e9b8104d61e872d3a0e20fa0822c78050ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling ucd-trie v0.1.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking text_io v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking rcalc_lib v1.0.0
[INFO] [stderr]     Checking dynfractal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `break` value
[INFO] [stdout]   --> src/main.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |             break(expr);
[INFO] [stdout]    |                  ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -             break(expr);
[INFO] [stdout] 71 +             break expr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `break` value
[INFO] [stdout]   --> src/main.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |             break(expr);
[INFO] [stdout]    |                  ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -             break(expr);
[INFO] [stdout] 71 +             break expr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.59s
[INFO] running `Command { std: "docker" "inspect" "0f716354b48dfb08c1e3e2a185b33e9b8104d61e872d3a0e20fa0822c78050ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f716354b48dfb08c1e3e2a185b33e9b8104d61e872d3a0e20fa0822c78050ed", kill_on_drop: false }`
[INFO] [stdout] 0f716354b48dfb08c1e3e2a185b33e9b8104d61e872d3a0e20fa0822c78050ed