[INFO] cloning repository https://github.com/merq-rodriguez/write-then-read-files-with-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/merq-rodriguez/write-then-read-files-with-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerq-rodriguez%2Fwrite-then-read-files-with-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerq-rodriguez%2Fwrite-then-read-files-with-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e85c3e527415199aad53843a8e4eec5d2b2d57e
[INFO] checking merq-rodriguez/write-then-read-files-with-rust against master#a299aa5df79dd8e5a1405b97ddd7b367b61eecc6 for pr-125923-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerq-rodriguez%2Fwrite-then-read-files-with-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust on toolchain a299aa5df79dd8e5a1405b97ddd7b367b61eecc6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a299aa5df79dd8e5a1405b97ddd7b367b61eecc6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust
[INFO] finished tweaking git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust
[INFO] tweaked toml for git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust 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" "+a299aa5df79dd8e5a1405b97ddd7b367b61eecc6" "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 merq-rodriguez/write-then-read-files-with-rust against try#8585d8c57bfa6d7d66340412e06b5611fa79cc61 for pr-125923-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerq-rodriguez%2Fwrite-then-read-files-with-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust on toolchain 8585d8c57bfa6d7d66340412e06b5611fa79cc61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust
[INFO] finished tweaking git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust
[INFO] tweaked toml for git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust 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" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "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 merq-rodriguez/write-then-read-files-with-rust against try#8585d8c57bfa6d7d66340412e06b5611fa79cc61 for pr-125923-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerq-rodriguez%2Fwrite-then-read-files-with-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust on toolchain 8585d8c57bfa6d7d66340412e06b5611fa79cc61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust
[INFO] finished tweaking git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust
[INFO] tweaked toml for git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/merq-rodriguez/write-then-read-files-with-rust 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" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "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 rand v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ad2c22473c8d6471961d5068af4c4bd4faed6b071656eb3f6e0ff3c366f026b
[INFO] running `Command { std: "docker" "start" "-a" "0ad2c22473c8d6471961d5068af4c4bd4faed6b071656eb3f6e0ff3c366f026b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ad2c22473c8d6471961d5068af4c4bd4faed6b071656eb3f6e0ff3c366f026b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad2c22473c8d6471961d5068af4c4bd4faed6b071656eb3f6e0ff3c366f026b", kill_on_drop: false }`
[INFO] [stdout] 0ad2c22473c8d6471961d5068af4c4bd4faed6b071656eb3f6e0ff3c366f026b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7440e86899eb53b6992ba2db6bbe50f4dde5fce8b88cecbfd44ba75be295982e
[INFO] running `Command { std: "docker" "start" "-a" "7440e86899eb53b6992ba2db6bbe50f4dde5fce8b88cecbfd44ba75be295982e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking write_then_read_files v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn read_file(file_name: String) -> File {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getSample` is never used
[INFO] [stdout]   --> src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn getSample() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getSample` should have a snake case name
[INFO] [stdout]   --> src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn getSample() {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `get_sample`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn read_file(file_name: String) -> File {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getSample` is never used
[INFO] [stdout]   --> src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn getSample() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getSample` should have a snake case name
[INFO] [stdout]   --> src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn getSample() {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `get_sample`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "7440e86899eb53b6992ba2db6bbe50f4dde5fce8b88cecbfd44ba75be295982e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7440e86899eb53b6992ba2db6bbe50f4dde5fce8b88cecbfd44ba75be295982e", kill_on_drop: false }`
[INFO] [stdout] 7440e86899eb53b6992ba2db6bbe50f4dde5fce8b88cecbfd44ba75be295982e