[INFO] cloning repository https://github.com/roesnera/rust_fcc_ownership
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roesnera/rust_fcc_ownership" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froesnera%2Frust_fcc_ownership", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froesnera%2Frust_fcc_ownership'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20e50d9d89a856248ab88da8fac88289dfe4c9f7
[INFO] checking roesnera/rust_fcc_ownership against try#9053a8ad740a9e131b53ea98acecf68cf79134fe for pr-137045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froesnera%2Frust_fcc_ownership" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roesnera/rust_fcc_ownership on toolchain 9053a8ad740a9e131b53ea98acecf68cf79134fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9053a8ad740a9e131b53ea98acecf68cf79134fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/roesnera/rust_fcc_ownership
[INFO] finished tweaking git repo https://github.com/roesnera/rust_fcc_ownership
[INFO] tweaked toml for git repo https://github.com/roesnera/rust_fcc_ownership written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/roesnera/rust_fcc_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" "+9053a8ad740a9e131b53ea98acecf68cf79134fe" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9053a8ad740a9e131b53ea98acecf68cf79134fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fb4bd90efffe967c6fdcd06c5d0366d6e3b84e7adbb5b44469c60358caeb027
[INFO] running `Command { std: "docker" "start" "-a" "6fb4bd90efffe967c6fdcd06c5d0366d6e3b84e7adbb5b44469c60358caeb027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fb4bd90efffe967c6fdcd06c5d0366d6e3b84e7adbb5b44469c60358caeb027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb4bd90efffe967c6fdcd06c5d0366d6e3b84e7adbb5b44469c60358caeb027", kill_on_drop: false }`
[INFO] [stdout] 6fb4bd90efffe967c6fdcd06c5d0366d6e3b84e7adbb5b44469c60358caeb027
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9053a8ad740a9e131b53ea98acecf68cf79134fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6148033cc52771985a96faf04828ab8dcf5eeb54a4e631133e51f60f6ab3d138
[INFO] running `Command { std: "docker" "start" "-a" "6148033cc52771985a96faf04828ab8dcf5eeb54a4e631133e51f60f6ab3d138", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_fcc_ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `share_reference` is never used
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn share_reference() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership_problem` is never used
[INFO] [stdout]   --> src/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn take_ownership_problem() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn take_ownership(s: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership_problem` is never used
[INFO] [stdout]   --> src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn give_ownership_problem() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership` is never used
[INFO] [stdout]   --> src/main.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn give_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clone_vs_copy` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn clone_vs_copy() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutability_ownership_transfer` is never used
[INFO] [stdout]   --> src/main.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn mutability_ownership_transfer() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partial_moving` is never used
[INFO] [stdout]   --> src/main.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn partial_moving() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuple_references` is never used
[INFO] [stdout]    --> src/main.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn tuple_references() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `share_reference` is never used
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn share_reference() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership_problem` is never used
[INFO] [stdout]   --> src/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn take_ownership_problem() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn take_ownership(s: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership_problem` is never used
[INFO] [stdout]   --> src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn give_ownership_problem() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership` is never used
[INFO] [stdout]   --> src/main.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn give_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clone_vs_copy` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn clone_vs_copy() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutability_ownership_transfer` is never used
[INFO] [stdout]   --> src/main.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn mutability_ownership_transfer() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partial_moving` is never used
[INFO] [stdout]   --> src/main.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn partial_moving() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuple_references` is never used
[INFO] [stdout]    --> src/main.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn tuple_references() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "6148033cc52771985a96faf04828ab8dcf5eeb54a4e631133e51f60f6ab3d138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6148033cc52771985a96faf04828ab8dcf5eeb54a4e631133e51f60f6ab3d138", kill_on_drop: false }`
[INFO] [stdout] 6148033cc52771985a96faf04828ab8dcf5eeb54a4e631133e51f60f6ab3d138