[INFO] cloning repository https://github.com/andylin2004-graphics/07_cstack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andylin2004-graphics/07_cstack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylin2004-graphics%2F07_cstack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylin2004-graphics%2F07_cstack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0cde541e2f551d66c7a03624ceb7de4f07ac683f
[INFO] checking andylin2004-graphics/07_cstack against master#7bdae134cba57426d3c56b5de737a351762445e1 for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylin2004-graphics%2F07_cstack" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andylin2004-graphics/07_cstack on toolchain 7bdae134cba57426d3c56b5de737a351762445e1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7bdae134cba57426d3c56b5de737a351762445e1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] finished tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] tweaked toml for git repo https://github.com/andylin2004-graphics/07_cstack written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/andylin2004-graphics/07_cstack 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" "+7bdae134cba57426d3c56b5de737a351762445e1" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7bdae134cba57426d3c56b5de737a351762445e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48462771a10c7c5c1561d149c831adf42190c04ba5d75c8ca4c7b4e4d0a467b9
[INFO] running `Command { std: "docker" "start" "-a" "48462771a10c7c5c1561d149c831adf42190c04ba5d75c8ca4c7b4e4d0a467b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48462771a10c7c5c1561d149c831adf42190c04ba5d75c8ca4c7b4e4d0a467b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48462771a10c7c5c1561d149c831adf42190c04ba5d75c8ca4c7b4e4d0a467b9", kill_on_drop: false }`
[INFO] [stdout] 48462771a10c7c5c1561d149c831adf42190c04ba5d75c8ca4c7b4e4d0a467b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7bdae134cba57426d3c56b5de737a351762445e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] badffadf4b6a89d56c4b5336750453580111a7f8b3951ce0f08af4f9232f244b
[INFO] running `Command { std: "docker" "start" "-a" "badffadf4b6a89d56c4b5336750453580111a7f8b3951ce0f08af4f9232f244b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking hw-07 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::f32`
[INFO] [stdout]  --> src/parser.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::f32;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f32`
[INFO] [stdout]  --> src/parser.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::f32;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reset_color` is never used
[INFO] [stdout]   --> src/color.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Color{
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn reset_color(&mut self){
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_edge_int` is never used
[INFO] [stdout]    --> src/draw.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 166 | impl Matrix {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn add_edge_int(&mut self, x0: i32, y0: i32, z0: i32, x1: i32, y1: i32, z1: i32) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/image.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Image {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_matrix` is never used
[INFO] [stdout]   --> src/matrix.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Matrix{
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn print_matrix(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reset_color` is never used
[INFO] [stdout]   --> src/color.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Color{
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn reset_color(&mut self){
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_edge_int` is never used
[INFO] [stdout]    --> src/draw.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 166 | impl Matrix {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn add_edge_int(&mut self, x0: i32, y0: i32, z0: i32, x1: i32, y1: i32, z1: i32) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/image.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Image {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_matrix` is never used
[INFO] [stdout]   --> src/matrix.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Matrix{
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn print_matrix(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | /         parse_file(
[INFO] [stdout] 22 | |             "basketball_script",
[INFO] [stdout] 23 | |             &mut cstack,
[INFO] [stdout] 24 | |             &mut edges,
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |             color,
[INFO] [stdout] 28 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let _ = parse_file(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | /         parse_file(
[INFO] [stdout] 31 | |             "script",
[INFO] [stdout] 32 | |             &mut cstack,
[INFO] [stdout] 33 | |             &mut edges,
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |             color,
[INFO] [stdout] 37 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = parse_file(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `identityMatrix` should have a snake case name
[INFO] [stdout]   --> src/matrix.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut identityMatrix = Matrix::new(4,4);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `identity_matrix`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | /         parse_file(
[INFO] [stdout] 22 | |             "basketball_script",
[INFO] [stdout] 23 | |             &mut cstack,
[INFO] [stdout] 24 | |             &mut edges,
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |             color,
[INFO] [stdout] 28 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let _ = parse_file(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | /         parse_file(
[INFO] [stdout] 31 | |             "script",
[INFO] [stdout] 32 | |             &mut cstack,
[INFO] [stdout] 33 | |             &mut edges,
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |             color,
[INFO] [stdout] 37 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = parse_file(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `identityMatrix` should have a snake case name
[INFO] [stdout]   --> src/matrix.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut identityMatrix = Matrix::new(4,4);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `identity_matrix`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[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 1.35s
[INFO] running `Command { std: "docker" "inspect" "badffadf4b6a89d56c4b5336750453580111a7f8b3951ce0f08af4f9232f244b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "badffadf4b6a89d56c4b5336750453580111a7f8b3951ce0f08af4f9232f244b", kill_on_drop: false }`
[INFO] [stdout] badffadf4b6a89d56c4b5336750453580111a7f8b3951ce0f08af4f9232f244b
[INFO] checking andylin2004-graphics/07_cstack against try#f0a46ffcb8bbd220fe569642e5e175207d8e3fea for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylin2004-graphics%2F07_cstack" "/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/andylin2004-graphics/07_cstack on toolchain f0a46ffcb8bbd220fe569642e5e175207d8e3fea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] finished tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] tweaked toml for git repo https://github.com/andylin2004-graphics/07_cstack written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/andylin2004-graphics/07_cstack 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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "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
[INFO] checking andylin2004-graphics/07_cstack against try#f0a46ffcb8bbd220fe569642e5e175207d8e3fea for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylin2004-graphics%2F07_cstack" "/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/andylin2004-graphics/07_cstack on toolchain f0a46ffcb8bbd220fe569642e5e175207d8e3fea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] finished tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] tweaked toml for git repo https://github.com/andylin2004-graphics/07_cstack written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/andylin2004-graphics/07_cstack 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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking andylin2004-graphics/07_cstack against try#f0a46ffcb8bbd220fe569642e5e175207d8e3fea for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylin2004-graphics%2F07_cstack" "/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/andylin2004-graphics/07_cstack on toolchain f0a46ffcb8bbd220fe569642e5e175207d8e3fea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] finished tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] tweaked toml for git repo https://github.com/andylin2004-graphics/07_cstack written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/andylin2004-graphics/07_cstack 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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking andylin2004-graphics/07_cstack against try#f0a46ffcb8bbd220fe569642e5e175207d8e3fea for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylin2004-graphics%2F07_cstack" "/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/andylin2004-graphics/07_cstack on toolchain f0a46ffcb8bbd220fe569642e5e175207d8e3fea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] finished tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] tweaked toml for git repo https://github.com/andylin2004-graphics/07_cstack written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/andylin2004-graphics/07_cstack 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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking andylin2004-graphics/07_cstack against try#f0a46ffcb8bbd220fe569642e5e175207d8e3fea for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylin2004-graphics%2F07_cstack" "/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/andylin2004-graphics/07_cstack on toolchain f0a46ffcb8bbd220fe569642e5e175207d8e3fea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] finished tweaking git repo https://github.com/andylin2004-graphics/07_cstack
[INFO] tweaked toml for git repo https://github.com/andylin2004-graphics/07_cstack written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/andylin2004-graphics/07_cstack 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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "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
[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.