[INFO] cloning repository https://github.com/4got/rust-101
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/4got/rust-101" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4got%2Frust-101", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4got%2Frust-101'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e0adce41a374b2fb91d96dd71d58734ca87d33d
[INFO] building 4got/rust-101 against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4got%2Frust-101" "/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/4got/rust-101 on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/4got/rust-101
[INFO] finished tweaking git repo https://github.com/4got/rust-101
[INFO] tweaked toml for git repo https://github.com/4got/rust-101 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/4got/rust-101 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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 454354748d02b537cdca9cd22fb3e648ccb90b5467a057d6d9225234f4a5ac26
[INFO] running `Command { std: "docker" "start" "-a" "454354748d02b537cdca9cd22fb3e648ccb90b5467a057d6d9225234f4a5ac26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "454354748d02b537cdca9cd22fb3e648ccb90b5467a057d6d9225234f4a5ac26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "454354748d02b537cdca9cd22fb3e648ccb90b5467a057d6d9225234f4a5ac26", kill_on_drop: false }`
[INFO] [stdout] 454354748d02b537cdca9cd22fb3e648ccb90b5467a057d6d9225234f4a5ac26
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a4ee3d9232acd93c6c3b87d5f4e9651d32150807b8f26ceacff427ff1f27246
[INFO] running `Command { std: "docker" "start" "-a" "8a4ee3d9232acd93c6c3b87d5f4e9651d32150807b8f26ceacff427ff1f27246", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-101 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `NumberOrNothing` is never used
[INFO] [stdout]  --> src/part02.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type NumberOrNothing = SomethingOrNothing<i32>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FloatOrNothing` is never used
[INFO] [stdout]  --> src/part02.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type FloatOrNothing = SomethingOrNothing<f32>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]   --> src/part02.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl NumberOrNothing {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 23 |   pub fn print(self) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]   --> src/part02.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl FloatOrNothing {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] 31 |   pub fn print(self) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/part02.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_vec` is never used
[INFO] [stdout]  --> src/part03.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn read_vec() -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "8a4ee3d9232acd93c6c3b87d5f4e9651d32150807b8f26ceacff427ff1f27246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a4ee3d9232acd93c6c3b87d5f4e9651d32150807b8f26ceacff427ff1f27246", kill_on_drop: false }`
[INFO] [stdout] 8a4ee3d9232acd93c6c3b87d5f4e9651d32150807b8f26ceacff427ff1f27246
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51fedf0bb042a8864858da1b1ae74f10ad2473b68519e465bed55eb624ec161b
[INFO] running `Command { std: "docker" "start" "-a" "51fedf0bb042a8864858da1b1ae74f10ad2473b68519e465bed55eb624ec161b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-101 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `NumberOrNothing` is never used
[INFO] [stdout]  --> src/part02.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type NumberOrNothing = SomethingOrNothing<i32>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FloatOrNothing` is never used
[INFO] [stdout]  --> src/part02.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type FloatOrNothing = SomethingOrNothing<f32>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]   --> src/part02.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl NumberOrNothing {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 23 |   pub fn print(self) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]   --> src/part02.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl FloatOrNothing {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] 31 |   pub fn print(self) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/part02.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_vec` is never used
[INFO] [stdout]  --> src/part03.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn read_vec() -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "51fedf0bb042a8864858da1b1ae74f10ad2473b68519e465bed55eb624ec161b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51fedf0bb042a8864858da1b1ae74f10ad2473b68519e465bed55eb624ec161b", kill_on_drop: false }`
[INFO] [stdout] 51fedf0bb042a8864858da1b1ae74f10ad2473b68519e465bed55eb624ec161b
