[INFO] cloning repository https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrian-MacMonigle%2Frusty-rock-paper-scissors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrian-MacMonigle%2Frusty-rock-paper-scissors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64b039f6ee0c2f227780bfafa4eac8c82f0c16c5
[INFO] checking Brian-MacMonigle/rusty-rock-paper-scissors against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrian-MacMonigle%2Frusty-rock-paper-scissors" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors
[INFO] finished tweaking git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors
[INFO] tweaked toml for git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v1.1.2
[INFO] [stderr]   Downloaded rand v0.8.2
[INFO] [stderr]   Downloaded wasi v0.10.1+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded rand_core v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 727837218a4e16056b06dda4f4ad8beb6c41a572a358f0ffab1f5cb6b7f78a69
[INFO] running `Command { std: "docker" "start" "-a" "727837218a4e16056b06dda4f4ad8beb6c41a572a358f0ffab1f5cb6b7f78a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "727837218a4e16056b06dda4f4ad8beb6c41a572a358f0ffab1f5cb6b7f78a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "727837218a4e16056b06dda4f4ad8beb6c41a572a358f0ffab1f5cb6b7f78a69", kill_on_drop: false }`
[INFO] [stdout] 727837218a4e16056b06dda4f4ad8beb6c41a572a358f0ffab1f5cb6b7f78a69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70ab84ebd91adb4236fd52ccdfe488fde83943cd4fd6d8e34c92966ca2029e1e
[INFO] running `Command { std: "docker" "start" "-a" "70ab84ebd91adb4236fd52ccdfe488fde83943cd4fd6d8e34c92966ca2029e1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rock-paper-scissors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::Option;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Option` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::Option;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Option` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.67s
[INFO] running `Command { std: "docker" "inspect" "70ab84ebd91adb4236fd52ccdfe488fde83943cd4fd6d8e34c92966ca2029e1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ab84ebd91adb4236fd52ccdfe488fde83943cd4fd6d8e34c92966ca2029e1e", kill_on_drop: false }`
[INFO] [stdout] 70ab84ebd91adb4236fd52ccdfe488fde83943cd4fd6d8e34c92966ca2029e1e
[INFO] checking Brian-MacMonigle/rusty-rock-paper-scissors against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrian-MacMonigle%2Frusty-rock-paper-scissors" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors
[INFO] finished tweaking git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors
[INFO] tweaked toml for git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Brian-MacMonigle/rusty-rock-paper-scissors 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d91e3ac11f6136065ff79891b67c01db9215966475b6da90484b9d52f80eb068
[INFO] running `Command { std: "docker" "start" "-a" "d91e3ac11f6136065ff79891b67c01db9215966475b6da90484b9d52f80eb068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d91e3ac11f6136065ff79891b67c01db9215966475b6da90484b9d52f80eb068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d91e3ac11f6136065ff79891b67c01db9215966475b6da90484b9d52f80eb068", kill_on_drop: false }`
[INFO] [stdout] d91e3ac11f6136065ff79891b67c01db9215966475b6da90484b9d52f80eb068
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec851dfbcc8ae7494f6084d817088e486a1701cea2773a5bbfb7e14f5687e5e5
[INFO] running `Command { std: "docker" "start" "-a" "ec851dfbcc8ae7494f6084d817088e486a1701cea2773a5bbfb7e14f5687e5e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rock-paper-scissors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::Option;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Option` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::Option;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Option` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.65s
[INFO] running `Command { std: "docker" "inspect" "ec851dfbcc8ae7494f6084d817088e486a1701cea2773a5bbfb7e14f5687e5e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec851dfbcc8ae7494f6084d817088e486a1701cea2773a5bbfb7e14f5687e5e5", kill_on_drop: false }`
[INFO] [stdout] ec851dfbcc8ae7494f6084d817088e486a1701cea2773a5bbfb7e14f5687e5e5