[INFO] cloning repository https://github.com/tersec/fileflow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tersec/fileflow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftersec%2Ffileflow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftersec%2Ffileflow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3189886510a6ebe4e70f42542ec61fcba58957d1
[INFO] checking tersec/fileflow against try#b2fb67b8b6007ced9ad3f3b752a6fec899e7859c for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftersec%2Ffileflow" "/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/tersec/fileflow on toolchain b2fb67b8b6007ced9ad3f3b752a6fec899e7859c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tersec/fileflow
[INFO] finished tweaking git repo https://github.com/tersec/fileflow
[INFO] tweaked toml for git repo https://github.com/tersec/fileflow written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tersec/fileflow 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" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/4b8ac7ddbc28c7027dda6d67da11029194cc2bad995643a2353d4f1d284a1f07: no space left on device
[INFO] checking tersec/fileflow against try#b2fb67b8b6007ced9ad3f3b752a6fec899e7859c for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftersec%2Ffileflow" "/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/tersec/fileflow on toolchain b2fb67b8b6007ced9ad3f3b752a6fec899e7859c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tersec/fileflow
[INFO] finished tweaking git repo https://github.com/tersec/fileflow
[INFO] tweaked toml for git repo https://github.com/tersec/fileflow written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tersec/fileflow 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" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94e64f55322c5baaa23cc9212b59117a21a5c2e9813cc0719ebac5b53e540938
[INFO] running `Command { std: "docker" "start" "-a" "94e64f55322c5baaa23cc9212b59117a21a5c2e9813cc0719ebac5b53e540938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94e64f55322c5baaa23cc9212b59117a21a5c2e9813cc0719ebac5b53e540938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e64f55322c5baaa23cc9212b59117a21a5c2e9813cc0719ebac5b53e540938", kill_on_drop: false }`
[INFO] [stdout] 94e64f55322c5baaa23cc9212b59117a21a5c2e9813cc0719ebac5b53e540938
[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" "-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31197931cf0d4853b65128e5d8f3e0aebee34350bce91962d85e62ef8ec3d3ce
[INFO] running `Command { std: "docker" "start" "-a" "31197931cf0d4853b65128e5d8f3e0aebee34350bce91962d85e62ef8ec3d3ce", kill_on_drop: false }`
[INFO] [stderr]     Checking fileflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `l0_hash_index_files`
[INFO] [stdout]    --> src/main.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 |     let (l0_tree, l0_hash_index, l0_hash_index_files) =
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l0_hash_index_files`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l1_hash_index_files`
[INFO] [stdout]    --> src/main.rs:457:22
[INFO] [stdout]     |
[INFO] [stdout] 457 |     let (l1_tree, _, l1_hash_index_files) = build_source_tree(&l1_lines, &common_hashes);
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l1_hash_index_files`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found_file_set`
[INFO] [stdout]    --> src/main.rs:479:40
[INFO] [stdout]     |
[INFO] [stdout] 479 |         let (found_paths, found_score, found_file_set) = brute_force_find_best_match(
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_found_file_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l0_hash_index_files`
[INFO] [stdout]    --> src/main.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 |     let (l0_tree, l0_hash_index, l0_hash_index_files) =
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l0_hash_index_files`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l1_hash_index_files`
[INFO] [stdout]    --> src/main.rs:457:22
[INFO] [stdout]     |
[INFO] [stdout] 457 |     let (l1_tree, _, l1_hash_index_files) = build_source_tree(&l1_lines, &common_hashes);
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l1_hash_index_files`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found_file_set`
[INFO] [stdout]    --> src/main.rs:479:40
[INFO] [stdout]     |
[INFO] [stdout] 479 |         let (found_paths, found_score, found_file_set) = brute_force_find_best_match(
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_found_file_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bit_index`
[INFO] [stdout]    --> src/main.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 |                 for bit_index in get_set_bits(&x) {
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bit_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:499:21
[INFO] [stdout]     |
[INFO] [stdout] 499 |                 let mut s: String = "".to_string();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub_hash_bitmaps` is never used
[INFO] [stdout]    --> src/main.rs:154:4
[INFO] [stdout]     |
[INFO] [stdout] 154 | fn sub_hash_bitmaps(x: &HashBitmap, y: &HashBitmap) -> HashBitmap {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bit_index`
[INFO] [stdout]    --> src/main.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 |                 for bit_index in get_set_bits(&x) {
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bit_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:499:21
[INFO] [stdout]     |
[INFO] [stdout] 499 |                 let mut s: String = "".to_string();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub_hash_bitmaps` is never used
[INFO] [stdout]    --> src/main.rs:154:4
[INFO] [stdout]     |
[INFO] [stdout] 154 | fn sub_hash_bitmaps(x: &HashBitmap, y: &HashBitmap) -> HashBitmap {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_changed` is never used
[INFO] [stdout]    --> src/main.rs:498:16
[INFO] [stdout]     |
[INFO] [stdout] 498 |             fn format_changed(x: FileSet) -> String {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "31197931cf0d4853b65128e5d8f3e0aebee34350bce91962d85e62ef8ec3d3ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31197931cf0d4853b65128e5d8f3e0aebee34350bce91962d85e62ef8ec3d3ce", kill_on_drop: false }`
[INFO] [stdout] 31197931cf0d4853b65128e5d8f3e0aebee34350bce91962d85e62ef8ec3d3ce