[INFO] cloning repository https://github.com/worldmaker18349276/cuboard
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/worldmaker18349276/cuboard" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fworldmaker18349276%2Fcuboard", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fworldmaker18349276%2Fcuboard'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0d981b8a806c446e4cc51e09f57763548101bbe
[INFO] testing worldmaker18349276/cuboard/f0d981b8a806c446e4cc51e09f57763548101bbe against master#b03b3a7ec92682be2917540b679478d41c95a30c for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fworldmaker18349276%2Fcuboard" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/worldmaker18349276/cuboard
[INFO] finished tweaking git repo https://github.com/worldmaker18349276/cuboard
[INFO] tweaked toml for git repo https://github.com/worldmaker18349276/cuboard written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/worldmaker18349276/cuboard on toolchain b03b3a7ec92682be2917540b679478d41c95a30c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/worldmaker18349276/cuboard 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" "+b03b3a7ec92682be2917540b679478d41c95a30c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded libdbus-sys v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "0d058c55f6bbc880b2810e7d5d87c3fac7d91f5c990a95747771dc7f15a632d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d058c55f6bbc880b2810e7d5d87c3fac7d91f5c990a95747771dc7f15a632d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d058c55f6bbc880b2810e7d5d87c3fac7d91f5c990a95747771dc7f15a632d1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cuboard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed for `Box<_>`
[INFO] [stdout]   --> src/cube.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let mut name = name.chars().collect::<Box<_>>();
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 32 |         name.rotate_left(self.1.repr() as usize);
[INFO] [stdout]    |              ----------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `name` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let mut name: Box<_> = name.chars().collect::<Box<_>>();
[INFO] [stdout]    |                     ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Box<_>`
[INFO] [stdout]   --> src/cube.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut name = name.chars().collect::<Box<_>>();
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 68 |         name.rotate_left(self.1.repr() as usize);
[INFO] [stdout]    |              ----------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `name` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut name: Box<_> = name.chars().collect::<Box<_>>();
[INFO] [stdout]    |                     ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cuboard` (bin "cuboard") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4846e7bf0d0008ee4165aed7d77744fc211ca02b6176dad55fb2179e1a6a8c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4846e7bf0d0008ee4165aed7d77744fc211ca02b6176dad55fb2179e1a6a8c5c", kill_on_drop: false }`
[INFO] [stdout] 4846e7bf0d0008ee4165aed7d77744fc211ca02b6176dad55fb2179e1a6a8c5c