[INFO] cloning repository https://github.com/8bitbanana/diceroll
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/8bitbanana/diceroll" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8bitbanana%2Fdiceroll", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8bitbanana%2Fdiceroll'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f9bf9196049a988fdc89f7771ff5ddbef40d958
[INFO] checking 8bitbanana/diceroll/2f9bf9196049a988fdc89f7771ff5ddbef40d958 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8bitbanana%2Fdiceroll" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/8bitbanana/diceroll on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/8bitbanana/diceroll
[INFO] finished tweaking git repo https://github.com/8bitbanana/diceroll
[INFO] tweaked toml for git repo https://github.com/8bitbanana/diceroll written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/8bitbanana/diceroll 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1974a3c9f5e23369a1b1cad2269789c1c293687d99152e5a61a4ecce18506304
[INFO] running `Command { std: "docker" "start" "-a" "1974a3c9f5e23369a1b1cad2269789c1c293687d99152e5a61a4ecce18506304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1974a3c9f5e23369a1b1cad2269789c1c293687d99152e5a61a4ecce18506304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1974a3c9f5e23369a1b1cad2269789c1c293687d99152e5a61a4ecce18506304", kill_on_drop: false }`
[INFO] [stdout] 1974a3c9f5e23369a1b1cad2269789c1c293687d99152e5a61a4ecce18506304
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 647b8e4a780433224a3c742ae508e5afdd10b9b8317234d99877c8249096f2cd
[INFO] running `Command { std: "docker" "start" "-a" "647b8e4a780433224a3c742ae508e5afdd10b9b8317234d99877c8249096f2cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking strum v0.23.0
[INFO] [stderr]     Checking bitvec v0.19.6
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling strum_macros v0.23.1
[INFO] [stderr]     Checking diceroll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.41s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.2.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "647b8e4a780433224a3c742ae508e5afdd10b9b8317234d99877c8249096f2cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "647b8e4a780433224a3c742ae508e5afdd10b9b8317234d99877c8249096f2cd", kill_on_drop: false }`
[INFO] [stdout] 647b8e4a780433224a3c742ae508e5afdd10b9b8317234d99877c8249096f2cd