[INFO] cloning repository https://github.com/sneukam/rust-ownership
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sneukam/rust-ownership" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsneukam%2Frust-ownership", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsneukam%2Frust-ownership'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 584da2a1227e7b93d1c5ec5518e65e41db2b4480
[INFO] testing sneukam/rust-ownership against 1.77.0 for beta-1.78-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsneukam%2Frust-ownership" "/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/sneukam/rust-ownership on toolchain 1.77.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.77.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sneukam/rust-ownership
[INFO] finished tweaking git repo https://github.com/sneukam/rust-ownership
[INFO] tweaked toml for git repo https://github.com/sneukam/rust-ownership written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sneukam/rust-ownership 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" "+1.77.0" "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.
[INFO] testing sneukam/rust-ownership against beta-2024-03-24 for beta-1.78-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsneukam%2Frust-ownership" "/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/sneukam/rust-ownership on toolchain beta-2024-03-24
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-03-24" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sneukam/rust-ownership
[INFO] finished tweaking git repo https://github.com/sneukam/rust-ownership
[INFO] tweaked toml for git repo https://github.com/sneukam/rust-ownership written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sneukam/rust-ownership 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" "+beta-2024-03-24" "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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-03-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3dcfad719d40762fe06bbfb8237c489dbec1b6ed6b93298b5324951094084f5
[INFO] running `Command { std: "docker" "start" "-a" "d3dcfad719d40762fe06bbfb8237c489dbec1b6ed6b93298b5324951094084f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3dcfad719d40762fe06bbfb8237c489dbec1b6ed6b93298b5324951094084f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3dcfad719d40762fe06bbfb8237c489dbec1b6ed6b93298b5324951094084f5", kill_on_drop: false }`
[INFO] [stdout] d3dcfad719d40762fe06bbfb8237c489dbec1b6ed6b93298b5324951094084f5
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2024-03-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5bb3c1ac4092ff934af9712bc5f0a389496626c7ca741e1fb0a78fbd6c1c88c
[INFO] running `Command { std: "docker" "start" "-a" "a5bb3c1ac4092ff934af9712bc5f0a389496626c7ca741e1fb0a78fbd6c1c88c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let s1: String = give_ownership();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s3`
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let s3: String = takes_and_gives_back(s2);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main2` is never used
[INFO] [stdout]  --> src/main.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main2() {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main3` is never used
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn main3() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/main.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn take_ownership(some_string: String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_copy` is never used
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn make_copy(some_int: i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main4` is never used
[INFO] [stdout]   --> src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn main4() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership` is never used
[INFO] [stdout]   --> src/main.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn give_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_and_gives_back` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "a5bb3c1ac4092ff934af9712bc5f0a389496626c7ca741e1fb0a78fbd6c1c88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5bb3c1ac4092ff934af9712bc5f0a389496626c7ca741e1fb0a78fbd6c1c88c", kill_on_drop: false }`
[INFO] [stdout] a5bb3c1ac4092ff934af9712bc5f0a389496626c7ca741e1fb0a78fbd6c1c88c
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2024-03-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0c054fddfe157b7f113c2573459f10502775558ed42d996fa89d66006757b46
[INFO] running `Command { std: "docker" "start" "-a" "b0c054fddfe157b7f113c2573459f10502775558ed42d996fa89d66006757b46", kill_on_drop: false }`
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let s1: String = give_ownership();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s3`
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let s3: String = takes_and_gives_back(s2);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main2` is never used
[INFO] [stdout]  --> src/main.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main2() {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main3` is never used
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn main3() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/main.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn take_ownership(some_string: String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_copy` is never used
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn make_copy(some_int: i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main4` is never used
[INFO] [stdout]   --> src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn main4() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership` is never used
[INFO] [stdout]   --> src/main.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn give_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_and_gives_back` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "b0c054fddfe157b7f113c2573459f10502775558ed42d996fa89d66006757b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0c054fddfe157b7f113c2573459f10502775558ed42d996fa89d66006757b46", kill_on_drop: false }`
[INFO] [stdout] b0c054fddfe157b7f113c2573459f10502775558ed42d996fa89d66006757b46
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2024-03-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 998ccdbfeaa784c993dadb841c9e1e96d79691f7514696967296b22f76e5f85e
[INFO] running `Command { std: "docker" "start" "-a" "998ccdbfeaa784c993dadb841c9e1e96d79691f7514696967296b22f76e5f85e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `s1`
[INFO] [stderr]   --> src/main.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let s1: String = give_ownership();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s3`
[INFO] [stderr]   --> src/main.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let s3: String = takes_and_gives_back(s2);
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s3`
[INFO] [stderr] 
[INFO] [stderr] warning: function `main2` is never used
[INFO] [stderr]  --> src/main.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn main2() {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `main3` is never used
[INFO] [stderr]   --> src/main.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn main3() {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `take_ownership` is never used
[INFO] [stderr]   --> src/main.rs:38:4
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn take_ownership(some_string: String) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `make_copy` is never used
[INFO] [stderr]   --> src/main.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn make_copy(some_int: i32) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main4` is never used
[INFO] [stderr]   --> src/main.rs:46:4
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn main4() {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `give_ownership` is never used
[INFO] [stderr]   --> src/main.rs:59:4
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn give_ownership() -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `takes_and_gives_back` is never used
[INFO] [stderr]   --> src/main.rs:64:4
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ownership` (bin "ownership" test) generated 9 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ownership-ced4d48652135b3f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "998ccdbfeaa784c993dadb841c9e1e96d79691f7514696967296b22f76e5f85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998ccdbfeaa784c993dadb841c9e1e96d79691f7514696967296b22f76e5f85e", kill_on_drop: false }`
[INFO] [stdout] 998ccdbfeaa784c993dadb841c9e1e96d79691f7514696967296b22f76e5f85e