[INFO] cloning repository https://github.com/williamitz/rust_modulos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/williamitz/rust_modulos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamitz%2Frust_modulos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamitz%2Frust_modulos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a439acb87e244558f3f7756d6235e55e17790bb4
[INFO] checking williamitz/rust_modulos against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamitz%2Frust_modulos" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/williamitz/rust_modulos on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/williamitz/rust_modulos
[INFO] finished tweaking git repo https://github.com/williamitz/rust_modulos
[INFO] tweaked toml for git repo https://github.com/williamitz/rust_modulos written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/williamitz/rust_modulos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d466d9326594555d238b42986366ea028df45e6029808d0c69267964ab64d27a
[INFO] running `Command { std: "docker" "start" "-a" "d466d9326594555d238b42986366ea028df45e6029808d0c69267964ab64d27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d466d9326594555d238b42986366ea028df45e6029808d0c69267964ab64d27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d466d9326594555d238b42986366ea028df45e6029808d0c69267964ab64d27a", kill_on_drop: false }`
[INFO] [stdout] d466d9326594555d238b42986366ea028df45e6029808d0c69267964ab64d27a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c822a0e6145588699ec85dcd035fc8018447e652c402be904cefc1106c3fd77
[INFO] running `Command { std: "docker" "start" "-a" "1c822a0e6145588699ec85dcd035fc8018447e652c402be904cefc1106c3fd77", kill_on_drop: false }`
[INFO] [stderr]     Checking game_backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `v` is never read
[INFO] [stdout]  --> src/game/rest_game.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let mut v = vec![1,2,3];
[INFO] [stdout]   |                 ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `v` is never read
[INFO] [stdout]  --> src/game/rest_game.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let mut v = vec![1,2,3];
[INFO] [stdout]   |                 ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "1c822a0e6145588699ec85dcd035fc8018447e652c402be904cefc1106c3fd77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c822a0e6145588699ec85dcd035fc8018447e652c402be904cefc1106c3fd77", kill_on_drop: false }`
[INFO] [stdout] 1c822a0e6145588699ec85dcd035fc8018447e652c402be904cefc1106c3fd77