[INFO] cloning repository https://github.com/Angael/rust-async-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Angael/rust-async-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngael%2Frust-async-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngael%2Frust-async-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5eceed33c269520f1ab3ac4f04782e3fb4f51b4a
[INFO] testing Angael/rust-async-test against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngael%2Frust-async-test" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Angael/rust-async-test
[INFO] finished tweaking git repo https://github.com/Angael/rust-async-test
[INFO] tweaked toml for git repo https://github.com/Angael/rust-async-test written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Angael/rust-async-test on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Angael/rust-async-test 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf967050a9b90fb0ad8dfb304f36f776a446314e9bb6728c4e51afbf95c4c174
[INFO] running `Command { std: "docker" "start" "-a" "cf967050a9b90fb0ad8dfb304f36f776a446314e9bb6728c4e51afbf95c4c174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf967050a9b90fb0ad8dfb304f36f776a446314e9bb6728c4e51afbf95c4c174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf967050a9b90fb0ad8dfb304f36f776a446314e9bb6728c4e51afbf95c4c174", kill_on_drop: false }`
[INFO] [stdout] cf967050a9b90fb0ad8dfb304f36f776a446314e9bb6728c4e51afbf95c4c174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea01b2139d88de7947ff0fd2b2f412411271efc6721c22870d989b7d19147d04
[INFO] running `Command { std: "docker" "start" "-a" "ea01b2139d88de7947ff0fd2b2f412411271efc6721c22870d989b7d19147d04", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> src/examples/custom_structs.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Color {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `to_hex`, and `contrast` are never used
[INFO] [stdout]   --> src/examples/custom_structs.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Color {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 9  |     fn new(red: u8, green: u8, blue: u8) -> Color {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn to_hex(&self) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn contrast(&self, other: &Color) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/examples/smart_pointers.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Cons(Box<List>),
[INFO] [stdout]   |     ---- ^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 2 -     Cons(Box<List>),
[INFO] [stdout] 2 +     Cons(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "ea01b2139d88de7947ff0fd2b2f412411271efc6721c22870d989b7d19147d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea01b2139d88de7947ff0fd2b2f412411271efc6721c22870d989b7d19147d04", kill_on_drop: false }`
[INFO] [stdout] ea01b2139d88de7947ff0fd2b2f412411271efc6721c22870d989b7d19147d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 625262d5dfdc361ef78e511ec9d6badb6f49e33692fde5750f1ea3e578921548
[INFO] running `Command { std: "docker" "start" "-a" "625262d5dfdc361ef78e511ec9d6badb6f49e33692fde5750f1ea3e578921548", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> src/examples/custom_structs.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Color {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `to_hex`, and `contrast` are never used
[INFO] [stdout]   --> src/examples/custom_structs.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Color {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 9  |     fn new(red: u8, green: u8, blue: u8) -> Color {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn to_hex(&self) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn contrast(&self, other: &Color) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/examples/smart_pointers.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Cons(Box<List>),
[INFO] [stdout]   |     ---- ^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 2 -     Cons(Box<List>),
[INFO] [stdout] 2 +     Cons(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "625262d5dfdc361ef78e511ec9d6badb6f49e33692fde5750f1ea3e578921548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625262d5dfdc361ef78e511ec9d6badb6f49e33692fde5750f1ea3e578921548", kill_on_drop: false }`
[INFO] [stdout] 625262d5dfdc361ef78e511ec9d6badb6f49e33692fde5750f1ea3e578921548
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f47a3142b026107eeddcc2bd97b435468ba3c9a33b6a56f826dcb2e63c1b4b39
[INFO] running `Command { std: "docker" "start" "-a" "f47a3142b026107eeddcc2bd97b435468ba3c9a33b6a56f826dcb2e63c1b4b39", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Color` is never constructed
[INFO] [stderr]  --> src/examples/custom_structs.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Color {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `to_hex`, and `contrast` are never used
[INFO] [stderr]   --> src/examples/custom_structs.rs:9:8
[INFO] [stderr]    |
[INFO] [stderr] 8  | impl Color {
[INFO] [stderr]    | ---------- associated items in this implementation
[INFO] [stderr] 9  |     fn new(red: u8, green: u8, blue: u8) -> Color {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 13 |     fn to_hex(&self) -> String {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 |     fn contrast(&self, other: &Color) -> u8 {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/examples/smart_pointers.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 |     Cons(Box<List>),
[INFO] [stderr]   |     ---- ^^^^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 2 -     Cons(Box<List>),
[INFO] [stderr] 2 +     Cons(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `async-test` (bin "async-test" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/async_test-2f7025d74c6505ca)
[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" "f47a3142b026107eeddcc2bd97b435468ba3c9a33b6a56f826dcb2e63c1b4b39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f47a3142b026107eeddcc2bd97b435468ba3c9a33b6a56f826dcb2e63c1b4b39", kill_on_drop: false }`
[INFO] [stdout] f47a3142b026107eeddcc2bd97b435468ba3c9a33b6a56f826dcb2e63c1b4b39
