[INFO] cloning repository https://github.com/JulienH2000/my-rust-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JulienH2000/my-rust-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulienH2000%2Fmy-rust-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulienH2000%2Fmy-rust-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f42881d2baa8903a7a3150962dc92afdd992c2eb
[INFO] checking JulienH2000/my-rust-sandbox against try#39605810efb1a0d52f955bfba9e4eec7a01d5deb for pr-153692
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulienH2000%2Fmy-rust-sandbox" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JulienH2000/my-rust-sandbox
[INFO] finished tweaking git repo https://github.com/JulienH2000/my-rust-sandbox
[INFO] tweaked toml for git repo https://github.com/JulienH2000/my-rust-sandbox written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JulienH2000/my-rust-sandbox on toolchain 39605810efb1a0d52f955bfba9e4eec7a01d5deb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JulienH2000/my-rust-sandbox 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" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "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 JulienH2000/my-rust-sandbox against try#39605810efb1a0d52f955bfba9e4eec7a01d5deb for pr-153692
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulienH2000%2Fmy-rust-sandbox" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JulienH2000/my-rust-sandbox
[INFO] finished tweaking git repo https://github.com/JulienH2000/my-rust-sandbox
[INFO] tweaked toml for git repo https://github.com/JulienH2000/my-rust-sandbox written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JulienH2000/my-rust-sandbox on toolchain 39605810efb1a0d52f955bfba9e4eec7a01d5deb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JulienH2000/my-rust-sandbox 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" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a187bdecf2efecad7ee694f947ae4db89427d7f5e99bc1309ba14f4b64363d83
[INFO] running `Command { std: "docker" "start" "-a" "a187bdecf2efecad7ee694f947ae4db89427d7f5e99bc1309ba14f4b64363d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a187bdecf2efecad7ee694f947ae4db89427d7f5e99bc1309ba14f4b64363d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a187bdecf2efecad7ee694f947ae4db89427d7f5e99bc1309ba14f4b64363d83", kill_on_drop: false }`
[INFO] [stdout] a187bdecf2efecad7ee694f947ae4db89427d7f5e99bc1309ba14f4b64363d83
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fefc847c40c9873577a008bc828287c296a00852acbd7ea4531da2c05169a9a
[INFO] running `Command { std: "docker" "start" "-a" "6fefc847c40c9873577a008bc828287c296a00852acbd7ea4531da2c05169a9a", kill_on_drop: false }`
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ref_tc`
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let ref_tc = Timecode {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_tc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ref_tc`
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let ref_tc = Timecode {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_tc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slice_at_underscore` is never used
[INFO] [stdout]    --> src/main.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn slice_at_underscore (source : &String) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text_return` is never used
[INFO] [stdout]    --> src/main.rs:129:4
[INFO] [stdout]     |
[INFO] [stdout] 129 | fn text_return() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text_modif` is never used
[INFO] [stdout]    --> src/main.rs:136:4
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn text_modif(input: String) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nb_push` is never used
[INFO] [stdout]    --> src/main.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn nb_push(mut text_input : String, nb_input : i32) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_user_input` is never used
[INFO] [stdout]    --> src/main.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn read_user_input() -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slice_at_underscore` is never used
[INFO] [stdout]    --> src/main.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn slice_at_underscore (source : &String) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text_return` is never used
[INFO] [stdout]    --> src/main.rs:129:4
[INFO] [stdout]     |
[INFO] [stdout] 129 | fn text_return() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text_modif` is never used
[INFO] [stdout]    --> src/main.rs:136:4
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn text_modif(input: String) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nb_push` is never used
[INFO] [stdout]    --> src/main.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn nb_push(mut text_input : String, nb_input : i32) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_user_input` is never used
[INFO] [stdout]    --> src/main.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn read_user_input() -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "6fefc847c40c9873577a008bc828287c296a00852acbd7ea4531da2c05169a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fefc847c40c9873577a008bc828287c296a00852acbd7ea4531da2c05169a9a", kill_on_drop: false }`
[INFO] [stdout] 6fefc847c40c9873577a008bc828287c296a00852acbd7ea4531da2c05169a9a