[INFO] fetching crate ffmpeg-stringify 0.2.1...
[INFO] checking ffmpeg-stringify-0.2.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate ffmpeg-stringify 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate ffmpeg-stringify 0.2.1
[INFO] finished tweaking crates.io crate ffmpeg-stringify 0.2.1
[INFO] tweaked toml for crates.io crate ffmpeg-stringify 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ffmpeg-stringify 0.2.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding map-macro v0.2.6 (available: v0.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded map-macro v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11fd4eb93f4312ac7da5af6ab000bb48befb046c8600f9e9ca027400cc41b21c
[INFO] running `Command { std: "docker" "start" "-a" "11fd4eb93f4312ac7da5af6ab000bb48befb046c8600f9e9ca027400cc41b21c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11fd4eb93f4312ac7da5af6ab000bb48befb046c8600f9e9ca027400cc41b21c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11fd4eb93f4312ac7da5af6ab000bb48befb046c8600f9e9ca027400cc41b21c", kill_on_drop: false }`
[INFO] [stdout] 11fd4eb93f4312ac7da5af6ab000bb48befb046c8600f9e9ca027400cc41b21c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a00a0756ce72745ff8cc34682f87fc0537bbc9b0738c9d4fdac5b1660dab10f
[INFO] running `Command { std: "docker" "start" "-a" "2a00a0756ce72745ff8cc34682f87fc0537bbc9b0738c9d4fdac5b1660dab10f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking map-macro v0.2.6
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking ffmpeg-stringify v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path`
[INFO] [stdout]    --> src/lib.rs:124:15
[INFO] [stdout]     |
[INFO] [stdout] 124 |     use std::{path, vec};
[INFO] [stdout]     |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/lib.rs:38:35
[INFO] [stdout]    |
[INFO] [stdout] 38 |             FNodeType::FilterNode(node) => true,
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `filters` is never read
[INFO] [stdout]   --> src/lib.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut filters = "".to_string();
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `filterNode` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:101:25
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn format_operation(filterNode: FilterNode) -> String {
[INFO] [stdout]     |                         ^^^^^^^^^^ help: convert the identifier to snake case: `filter_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/lib.rs:38:35
[INFO] [stdout]    |
[INFO] [stdout] 38 |             FNodeType::FilterNode(node) => true,
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `filters` is never read
[INFO] [stdout]   --> src/lib.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut filters = "".to_string();
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `overlay`
[INFO] [stdout]    --> src/lib.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let overlay = FilterNode {
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_overlay`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `filterNode` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:101:25
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn format_operation(filterNode: FilterNode) -> String {
[INFO] [stdout]     |                         ^^^^^^^^^^ help: convert the identifier to snake case: `filter_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.52s
[INFO] running `Command { std: "docker" "inspect" "2a00a0756ce72745ff8cc34682f87fc0537bbc9b0738c9d4fdac5b1660dab10f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a00a0756ce72745ff8cc34682f87fc0537bbc9b0738c9d4fdac5b1660dab10f", kill_on_drop: false }`
[INFO] [stdout] 2a00a0756ce72745ff8cc34682f87fc0537bbc9b0738c9d4fdac5b1660dab10f