[INFO] cloning repository https://github.com/Minkerr/ChunkFS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Minkerr/ChunkFS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinkerr%2FChunkFS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinkerr%2FChunkFS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44e080382ca1b5d0eead256ad26eec78cd466869
[INFO] checking Minkerr/ChunkFS/44e080382ca1b5d0eead256ad26eec78cd466869 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%2FMinkerr%2FChunkFS" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Minkerr/ChunkFS 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/Minkerr/ChunkFS
[INFO] finished tweaking git repo https://github.com/Minkerr/ChunkFS
[INFO] tweaked toml for git repo https://github.com/Minkerr/ChunkFS written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Minkerr/ChunkFS 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f7d3fc726e2f70f8f13f83ac304e305d01316b466ff42c95dd08b1d686199509
[INFO] running `Command { std: "docker" "start" "-a" "f7d3fc726e2f70f8f13f83ac304e305d01316b466ff42c95dd08b1d686199509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7d3fc726e2f70f8f13f83ac304e305d01316b466ff42c95dd08b1d686199509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d3fc726e2f70f8f13f83ac304e305d01316b466ff42c95dd08b1d686199509", kill_on_drop: false }`
[INFO] [stdout] f7d3fc726e2f70f8f13f83ac304e305d01316b466ff42c95dd08b1d686199509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8b22d90be87b3b52301a8154222b1e49eb81cb5434cb1013558620f7e46c8926
[INFO] running `Command { std: "docker" "start" "-a" "8b22d90be87b3b52301a8154222b1e49eb81cb5434cb1013558620f7e46c8926", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking chunking v0.1.0 (https://github.com/Piletskii-Oleg/rust-chunking.git#30537705)
[INFO] [stderr]     Checking chunkfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking runner v0.1.0 (/opt/rustwide/workdir/runner)
[INFO] [stdout] warning: function `two_file_handles_to_one_file` is never used
[INFO] [stdout]   --> tests/filesystem.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn two_file_handles_to_one_file() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.41s
[INFO] running `Command { std: "docker" "inspect" "8b22d90be87b3b52301a8154222b1e49eb81cb5434cb1013558620f7e46c8926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b22d90be87b3b52301a8154222b1e49eb81cb5434cb1013558620f7e46c8926", kill_on_drop: false }`
[INFO] [stdout] 8b22d90be87b3b52301a8154222b1e49eb81cb5434cb1013558620f7e46c8926