[INFO] fetching crate tiny_tco 0.1.6...
[INFO] testing tiny_tco-0.1.6 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate tiny_tco 0.1.6 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate tiny_tco 0.1.6
[INFO] finished tweaking crates.io crate tiny_tco 0.1.6
[INFO] tweaked toml for crates.io crate tiny_tco 0.1.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tiny_tco 0.1.6 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72151c88ff8c2f4fb70dc036decb11464924d4cf29611d95dc454fdd3af54d07
[INFO] running `Command { std: "docker" "start" "-a" "72151c88ff8c2f4fb70dc036decb11464924d4cf29611d95dc454fdd3af54d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72151c88ff8c2f4fb70dc036decb11464924d4cf29611d95dc454fdd3af54d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72151c88ff8c2f4fb70dc036decb11464924d4cf29611d95dc454fdd3af54d07", kill_on_drop: false }`
[INFO] [stdout] 72151c88ff8c2f4fb70dc036decb11464924d4cf29611d95dc454fdd3af54d07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cc8ac59cb0e1cd4ea4bcad39f26f10fb2cac3189a4bf0bd104301abd4b00d2d
[INFO] running `Command { std: "docker" "start" "-a" "4cc8ac59cb0e1cd4ea4bcad39f26f10fb2cac3189a4bf0bd104301abd4b00d2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny_tco v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "4cc8ac59cb0e1cd4ea4bcad39f26f10fb2cac3189a4bf0bd104301abd4b00d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cc8ac59cb0e1cd4ea4bcad39f26f10fb2cac3189a4bf0bd104301abd4b00d2d", kill_on_drop: false }`
[INFO] [stdout] 4cc8ac59cb0e1cd4ea4bcad39f26f10fb2cac3189a4bf0bd104301abd4b00d2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb1b65d0c6f2a7294c5d85aaf8eba621b4a1c5eebb34679d605595dc2753446f
[INFO] running `Command { std: "docker" "start" "-a" "fb1b65d0c6f2a7294c5d85aaf8eba621b4a1c5eebb34679d605595dc2753446f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny_tco v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if (x == 0) {
[INFO] [stdout]    |            ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 31 -         if (x == 0) {
[INFO] [stdout] 31 +         if x == 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "fb1b65d0c6f2a7294c5d85aaf8eba621b4a1c5eebb34679d605595dc2753446f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb1b65d0c6f2a7294c5d85aaf8eba621b4a1c5eebb34679d605595dc2753446f", kill_on_drop: false }`
[INFO] [stdout] fb1b65d0c6f2a7294c5d85aaf8eba621b4a1c5eebb34679d605595dc2753446f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce51afeaffd4f843fba6a5167042b10c1ba5baf67f6c24cafbcd118ffd18acfa
[INFO] running `Command { std: "docker" "start" "-a" "ce51afeaffd4f843fba6a5167042b10c1ba5baf67f6c24cafbcd118ffd18acfa", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/lib.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 |         if (x == 0) {
[INFO] [stderr]    |            ^      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 31 -         if (x == 0) {
[INFO] [stderr] 31 +         if x == 0 {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `tiny_tco` (lib test) generated 1 warning (run `cargo fix --lib -p tiny_tco --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tiny_tco-4dd7314874cb4398)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tiny_tco
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce51afeaffd4f843fba6a5167042b10c1ba5baf67f6c24cafbcd118ffd18acfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce51afeaffd4f843fba6a5167042b10c1ba5baf67f6c24cafbcd118ffd18acfa", kill_on_drop: false }`
[INFO] [stdout] ce51afeaffd4f843fba6a5167042b10c1ba5baf67f6c24cafbcd118ffd18acfa