[INFO] cloning repository https://github.com/CameronBarnes/project-euler-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CameronBarnes/project-euler-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCameronBarnes%2Fproject-euler-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCameronBarnes%2Fproject-euler-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b08f963e9132891baa80f8b74d507bca8eba52d0
[INFO] testing CameronBarnes/project-euler-rust/b08f963e9132891baa80f8b74d507bca8eba52d0 against 1.82.0 for beta-1.83-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCameronBarnes%2Fproject-euler-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CameronBarnes/project-euler-rust on toolchain 1.82.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.82.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CameronBarnes/project-euler-rust
[INFO] finished tweaking git repo https://github.com/CameronBarnes/project-euler-rust
[INFO] tweaked toml for git repo https://github.com/CameronBarnes/project-euler-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CameronBarnes/project-euler-rust 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" "+1.82.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-1/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-10/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-11/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-2/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-3/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-4/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-5/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-6/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-7/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-8/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc1/source/problem-9/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] [stderr]     Updating git repository `https://github.com/CameronBarnes/prime-lib.git`
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f4f70a366c6b2a82c3e6427996feb34c43d38c61aa87a5f96e5fb1cb28b8227
[INFO] running `Command { std: "docker" "start" "-a" "1f4f70a366c6b2a82c3e6427996feb34c43d38c61aa87a5f96e5fb1cb28b8227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f4f70a366c6b2a82c3e6427996feb34c43d38c61aa87a5f96e5fb1cb28b8227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f4f70a366c6b2a82c3e6427996feb34c43d38c61aa87a5f96e5fb1cb28b8227", kill_on_drop: false }`
[INFO] [stdout] 1f4f70a366c6b2a82c3e6427996feb34c43d38c61aa87a5f96e5fb1cb28b8227
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15712d88a89ff8041ccca74e3f59aee57d4162aba199e047efbb98eb915fa399
[INFO] running `Command { std: "docker" "start" "-a" "15712d88a89ff8041ccca74e3f59aee57d4162aba199e047efbb98eb915fa399", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-1/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-10/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-11/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-2/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-3/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-4/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-5/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-6/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-7/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-8/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/problem-9/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-10 v0.1.0 (/opt/rustwide/workdir/problem-10)` has the same output filename as the bin target `solution` in package `problem-1 v0.1.0 (/opt/rustwide/workdir/problem-1)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-10 v0.1.0 (/opt/rustwide/workdir/problem-10)` has the same output filename as the bin target `solution` in package `problem-1 v0.1.0 (/opt/rustwide/workdir/problem-1)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-11 v0.1.0 (/opt/rustwide/workdir/problem-11)` has the same output filename as the bin target `solution` in package `problem-10 v0.1.0 (/opt/rustwide/workdir/problem-10)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-11 v0.1.0 (/opt/rustwide/workdir/problem-11)` has the same output filename as the bin target `solution` in package `problem-10 v0.1.0 (/opt/rustwide/workdir/problem-10)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-2 v0.1.0 (/opt/rustwide/workdir/problem-2)` has the same output filename as the bin target `solution` in package `problem-11 v0.1.0 (/opt/rustwide/workdir/problem-11)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-2 v0.1.0 (/opt/rustwide/workdir/problem-2)` has the same output filename as the bin target `solution` in package `problem-11 v0.1.0 (/opt/rustwide/workdir/problem-11)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-3 v0.1.0 (/opt/rustwide/workdir/problem-3)` has the same output filename as the bin target `solution` in package `problem-2 v0.1.0 (/opt/rustwide/workdir/problem-2)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-3 v0.1.0 (/opt/rustwide/workdir/problem-3)` has the same output filename as the bin target `solution` in package `problem-2 v0.1.0 (/opt/rustwide/workdir/problem-2)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-4 v0.1.0 (/opt/rustwide/workdir/problem-4)` has the same output filename as the bin target `solution` in package `problem-3 v0.1.0 (/opt/rustwide/workdir/problem-3)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-4 v0.1.0 (/opt/rustwide/workdir/problem-4)` has the same output filename as the bin target `solution` in package `problem-3 v0.1.0 (/opt/rustwide/workdir/problem-3)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-5 v0.1.0 (/opt/rustwide/workdir/problem-5)` has the same output filename as the bin target `solution` in package `problem-4 v0.1.0 (/opt/rustwide/workdir/problem-4)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-5 v0.1.0 (/opt/rustwide/workdir/problem-5)` has the same output filename as the bin target `solution` in package `problem-4 v0.1.0 (/opt/rustwide/workdir/problem-4)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-6 v0.1.0 (/opt/rustwide/workdir/problem-6)` has the same output filename as the bin target `solution` in package `problem-5 v0.1.0 (/opt/rustwide/workdir/problem-5)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-6 v0.1.0 (/opt/rustwide/workdir/problem-6)` has the same output filename as the bin target `solution` in package `problem-5 v0.1.0 (/opt/rustwide/workdir/problem-5)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-7 v0.1.0 (/opt/rustwide/workdir/problem-7)` has the same output filename as the bin target `solution` in package `problem-6 v0.1.0 (/opt/rustwide/workdir/problem-6)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-7 v0.1.0 (/opt/rustwide/workdir/problem-7)` has the same output filename as the bin target `solution` in package `problem-6 v0.1.0 (/opt/rustwide/workdir/problem-6)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-8 v0.1.0 (/opt/rustwide/workdir/problem-8)` has the same output filename as the bin target `solution` in package `problem-7 v0.1.0 (/opt/rustwide/workdir/problem-7)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-8 v0.1.0 (/opt/rustwide/workdir/problem-8)` has the same output filename as the bin target `solution` in package `problem-7 v0.1.0 (/opt/rustwide/workdir/problem-7)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-9 v0.1.0 (/opt/rustwide/workdir/problem-9)` has the same output filename as the bin target `solution` in package `problem-8 v0.1.0 (/opt/rustwide/workdir/problem-8)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `solution` in package `problem-9 v0.1.0 (/opt/rustwide/workdir/problem-9)` has the same output filename as the bin target `solution` in package `problem-8 v0.1.0 (/opt/rustwide/workdir/problem-8)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/solution.dwp
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling primes v0.1.0 (https://github.com/CameronBarnes/prime-lib.git#af365caf)
[INFO] [stderr]    Compiling problem-1 v0.1.0 (/opt/rustwide/workdir/problem-1)
[INFO] [stderr]    Compiling problem-2 v0.1.0 (/opt/rustwide/workdir/problem-2)
[INFO] [stderr]    Compiling problem-5 v0.1.0 (/opt/rustwide/workdir/problem-5)
[INFO] [stderr]    Compiling problem-6 v0.1.0 (/opt/rustwide/workdir/problem-6)
[INFO] [stderr]    Compiling problem-3 v0.1.0 (/opt/rustwide/workdir/problem-3)
[INFO] [stderr]    Compiling problem-8 v0.1.0 (/opt/rustwide/workdir/problem-8)
[INFO] [stderr]    Compiling problem-4 v0.1.0 (/opt/rustwide/workdir/problem-4)
[INFO] [stderr]    Compiling problem-10 v0.1.0 (/opt/rustwide/workdir/problem-10)
[INFO] [stderr]    Compiling problem-7 v0.1.0 (/opt/rustwide/workdir/problem-7)
[INFO] [stderr]    Compiling problem-11 v0.1.0 (/opt/rustwide/workdir/problem-11)
[INFO] [stderr]    Compiling problem-9 v0.1.0 (/opt/rustwide/workdir/problem-9)
[INFO] [stderr] error: failed to remove file `/opt/rustwide/target/debug/solution`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No such file or directory (os error 2)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "15712d88a89ff8041ccca74e3f59aee57d4162aba199e047efbb98eb915fa399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15712d88a89ff8041ccca74e3f59aee57d4162aba199e047efbb98eb915fa399", kill_on_drop: false }`
[INFO] [stdout] 15712d88a89ff8041ccca74e3f59aee57d4162aba199e047efbb98eb915fa399