[INFO] cloning repository https://github.com/pema99/uglify
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pema99/uglify" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpema99%2Fuglify", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpema99%2Fuglify'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e29c88b6fcbdd8e99a577670c02b793e7078fa00
[INFO] checking pema99/uglify against master#e23ae72ac7a393961886ea62df065ebb6def7d51 for pr-126571
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpema99%2Fuglify" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pema99/uglify on toolchain e23ae72ac7a393961886ea62df065ebb6def7d51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e23ae72ac7a393961886ea62df065ebb6def7d51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pema99/uglify
[INFO] finished tweaking git repo https://github.com/pema99/uglify
[INFO] tweaked toml for git repo https://github.com/pema99/uglify written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pema99/uglify 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" "+e23ae72ac7a393961886ea62df065ebb6def7d51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking pema99/uglify against try#397f8958d101b259f6baaf92d107d770c95c3ce0 for pr-126571
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpema99%2Fuglify" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pema99/uglify on toolchain 397f8958d101b259f6baaf92d107d770c95c3ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pema99/uglify
[INFO] finished tweaking git repo https://github.com/pema99/uglify
[INFO] tweaked toml for git repo https://github.com/pema99/uglify written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pema99/uglify 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" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking pema99/uglify against try#397f8958d101b259f6baaf92d107d770c95c3ce0 for pr-126571
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpema99%2Fuglify" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pema99/uglify on toolchain 397f8958d101b259f6baaf92d107d770c95c3ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pema99/uglify
[INFO] finished tweaking git repo https://github.com/pema99/uglify
[INFO] tweaked toml for git repo https://github.com/pema99/uglify written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pema99/uglify 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" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lang-c v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54b496ac1110c4ef8b066dfb2a5843bb44c0f57d5cb96030b8e7bbaba13899a6
[INFO] running `Command { std: "docker" "start" "-a" "54b496ac1110c4ef8b066dfb2a5843bb44c0f57d5cb96030b8e7bbaba13899a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54b496ac1110c4ef8b066dfb2a5843bb44c0f57d5cb96030b8e7bbaba13899a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b496ac1110c4ef8b066dfb2a5843bb44c0f57d5cb96030b8e7bbaba13899a6", kill_on_drop: false }`
[INFO] [stdout] 54b496ac1110c4ef8b066dfb2a5843bb44c0f57d5cb96030b8e7bbaba13899a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adcf2dce0178a66b3bc4228ef84d3e19d45d6d2c5df095658b12b076ab24e7ac
[INFO] running `Command { std: "docker" "start" "-a" "adcf2dce0178a66b3bc4228ef84d3e19d45d6d2c5df095658b12b076ab24e7ac", kill_on_drop: false }`
[INFO] [stderr]     Checking lang-c v0.14.0
[INFO] [stderr]     Checking uglify v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/main.rs:119:64
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn visit_string_literal(&mut self, n: &'ast StringLiteral, span: &'ast Span) {
[INFO] [stdout]     |                                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/main.rs:119:64
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn visit_string_literal(&mut self, n: &'ast StringLiteral, span: &'ast Span) {
[INFO] [stdout]     |                                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/main.rs:275:59
[INFO] [stdout]     |
[INFO] [stdout] 275 |     fn visit_declaration(&mut self, n: &'ast Declaration, span: &'ast Span) {
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/main.rs:275:59
[INFO] [stdout]     |
[INFO] [stdout] 275 |     fn visit_declaration(&mut self, n: &'ast Declaration, span: &'ast Span) {
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_indented` is never used
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a> Printer<'a> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn write_indented(&mut self, text: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_indented` is never used
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a> Printer<'a> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn write_indented(&mut self, text: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_float_format` is never used
[INFO] [stdout]    --> src/main.rs:566:4
[INFO] [stdout]     |
[INFO] [stdout] 566 | fn print_float_format<'ast>(p: &mut Printer, n: &'ast FloatFormat) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_array_size` is never used
[INFO] [stdout]    --> src/main.rs:588:4
[INFO] [stdout]     |
[INFO] [stdout] 588 | fn print_array_size<'ast>(p: &mut Printer, n: &'ast ArraySize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_float_format` is never used
[INFO] [stdout]    --> src/main.rs:566:4
[INFO] [stdout]     |
[INFO] [stdout] 566 | fn print_float_format<'ast>(p: &mut Printer, n: &'ast FloatFormat) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_offset_member` is never used
[INFO] [stdout]    --> src/main.rs:596:4
[INFO] [stdout]     |
[INFO] [stdout] 596 | fn print_offset_member<'ast>(p: &mut Printer, n: &'ast OffsetMember) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_array_size` is never used
[INFO] [stdout]    --> src/main.rs:588:4
[INFO] [stdout]     |
[INFO] [stdout] 588 | fn print_array_size<'ast>(p: &mut Printer, n: &'ast ArraySize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_label` is never used
[INFO] [stdout]    --> src/main.rs:603:4
[INFO] [stdout]     |
[INFO] [stdout] 603 | fn print_label<'ast>(p: &mut Printer, n: &'ast Label) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_for_initializer` is never used
[INFO] [stdout]    --> src/main.rs:609:4
[INFO] [stdout]     |
[INFO] [stdout] 609 | fn print_for_initializer<'ast>(p: &mut Printer, n: &'ast ForInitializer) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_offset_member` is never used
[INFO] [stdout]    --> src/main.rs:596:4
[INFO] [stdout]     |
[INFO] [stdout] 596 | fn print_offset_member<'ast>(p: &mut Printer, n: &'ast OffsetMember) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_label` is never used
[INFO] [stdout]    --> src/main.rs:603:4
[INFO] [stdout]     |
[INFO] [stdout] 603 | fn print_label<'ast>(p: &mut Printer, n: &'ast Label) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_for_initializer` is never used
[INFO] [stdout]    --> src/main.rs:609:4
[INFO] [stdout]     |
[INFO] [stdout] 609 | fn print_for_initializer<'ast>(p: &mut Printer, n: &'ast ForInitializer) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "adcf2dce0178a66b3bc4228ef84d3e19d45d6d2c5df095658b12b076ab24e7ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adcf2dce0178a66b3bc4228ef84d3e19d45d6d2c5df095658b12b076ab24e7ac", kill_on_drop: false }`
[INFO] [stdout] adcf2dce0178a66b3bc4228ef84d3e19d45d6d2c5df095658b12b076ab24e7ac