[INFO] cloning repository https://github.com/deszip/Polyndrome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deszip/Polyndrome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeszip%2FPolyndrome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeszip%2FPolyndrome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3245f9b20ba8678dbb56826445d0682130dc514
[INFO] checking deszip/Polyndrome against try#3a4cb0edb4040379c037e06efeb5409e44be7b77 for pr-146377
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeszip%2FPolyndrome" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/deszip/Polyndrome
[INFO] finished tweaking git repo https://github.com/deszip/Polyndrome
[INFO] tweaked toml for git repo https://github.com/deszip/Polyndrome written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/deszip/Polyndrome on toolchain 3a4cb0edb4040379c037e06efeb5409e44be7b77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/deszip/Polyndrome 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" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded paw-attributes v1.0.2
[INFO] [stderr]   Downloaded paw-raw v1.0.0
[INFO] [stderr]   Downloaded paw v1.0.0
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02a839c492287799971132dd972ff81509774d35a9427a642965e389c07516c8
[INFO] running `Command { std: "docker" "start" "-a" "02a839c492287799971132dd972ff81509774d35a9427a642965e389c07516c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02a839c492287799971132dd972ff81509774d35a9427a642965e389c07516c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a839c492287799971132dd972ff81509774d35a9427a642965e389c07516c8", kill_on_drop: false }`
[INFO] [stdout] 02a839c492287799971132dd972ff81509774d35a9427a642965e389c07516c8
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29726327ba866616c8a2791d6881858561f75515fd88ec186eaa1f9468503e98
[INFO] running `Command { std: "docker" "start" "-a" "29726327ba866616c8a2791d6881858561f75515fd88ec186eaa1f9468503e98", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking text-colorizer v1.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking polyndrome v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |           /// Polyndrome is broken if any character before the middle doesn't have same opposite character
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 | /         if current != opposite && i != (len + 1) / 2 {
[INFO] [stdout] 19 | |             return i as i64;
[INFO] [stdout] 20 | |         }
[INFO] [stdout]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |           /// Polyndrome is broken if any character before the middle doesn't have same opposite character
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 | /         if current != opposite && i != (len + 1) / 2 {
[INFO] [stdout] 19 | |             return i as i64;
[INFO] [stdout] 20 | |         }
[INFO] [stdout]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.27s
[INFO] running `Command { std: "docker" "inspect" "29726327ba866616c8a2791d6881858561f75515fd88ec186eaa1f9468503e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29726327ba866616c8a2791d6881858561f75515fd88ec186eaa1f9468503e98", kill_on_drop: false }`
[INFO] [stdout] 29726327ba866616c8a2791d6881858561f75515fd88ec186eaa1f9468503e98