[INFO] cloning repository https://github.com/huseyinyilmaz/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huseyinyilmaz/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuseyinyilmaz%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuseyinyilmaz%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 658e4fb5abff7a9be5d7950e7845639e07780eb3
[INFO] checking huseyinyilmaz/rust-playground against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuseyinyilmaz%2Frust-playground" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/huseyinyilmaz/rust-playground
[INFO] finished tweaking git repo https://github.com/huseyinyilmaz/rust-playground
[INFO] tweaked toml for git repo https://github.com/huseyinyilmaz/rust-playground written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/huseyinyilmaz/rust-playground on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/huseyinyilmaz/rust-playground 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 592acb9e7fa12937c78d13af2e7252b873900c3887ede1272518ad0658dc5678
[INFO] running `Command { std: "docker" "start" "-a" "592acb9e7fa12937c78d13af2e7252b873900c3887ede1272518ad0658dc5678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "592acb9e7fa12937c78d13af2e7252b873900c3887ede1272518ad0658dc5678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "592acb9e7fa12937c78d13af2e7252b873900c3887ede1272518ad0658dc5678", kill_on_drop: false }`
[INFO] [stdout] 592acb9e7fa12937c78d13af2e7252b873900c3887ede1272518ad0658dc5678
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7efd81aefe31035c309bfc75f6c19bd3b4fb3d07ec8ca51c539027ea80fc47df
[INFO] running `Command { std: "docker" "start" "-a" "7efd81aefe31035c309bfc75f6c19bd3b4fb3d07ec8ca51c539027ea80fc47df", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
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[INFO] [stderr]     Checking rand_core v0.5.1
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[INFO] [stderr]    Compiling num-traits v0.2.11
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[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]    Compiling serde v1.0.104
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[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking rand_chacha v0.2.1
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[INFO] [stderr]     Checking phf v0.7.24
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[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking rand v0.7.3
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[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
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[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking block-buffer v0.7.3
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[INFO] [stderr]    Compiling mime_guess v1.8.7
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[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking futures-io v0.3.4
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[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking headers v0.3.1
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking hyper v0.13.2
[INFO] [stderr]     Checking warp v0.2.1
[INFO] [stderr]     Checking rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/warp_test_02/main.rs:18:84
[INFO] [stdout]    |
[INFO] [stdout] 18 |   async fn sleepy(Seconds(seconds): Seconds) -> Result<impl warp::Reply, Infallible> {
[INFO] [stdout]    |  ____________________________________________________________________________________^
[INFO] [stdout] 19 | |     tokio::time::delay_for(Duration::from_secs(seconds)).await;
[INFO] [stdout] 20 | |     Ok(format!("I waited {} seconds!", seconds))
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/warp_test_02/main.rs:18:84
[INFO] [stdout]    |
[INFO] [stdout] 18 |   async fn sleepy(Seconds(seconds): Seconds) -> Result<impl warp::Reply, Infallible> {
[INFO] [stdout]    |  ____________________________________________________________________________________^
[INFO] [stdout] 19 | |     tokio::time::delay_for(Duration::from_secs(seconds)).await;
[INFO] [stdout] 20 | |     Ok(format!("I waited {} seconds!", seconds))
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/warp_test_02/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Ok(format!("I waited {} seconds!", seconds))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-playground` (bin "warp_test_02") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/warp_test_02/main.rs:18:84
[INFO] [stdout]    |
[INFO] [stdout] 18 |   async fn sleepy(Seconds(seconds): Seconds) -> Result<impl warp::Reply, Infallible> {
[INFO] [stdout]    |  ____________________________________________________________________________________^
[INFO] [stdout] 19 | |     tokio::time::delay_for(Duration::from_secs(seconds)).await;
[INFO] [stdout] 20 | |     Ok(format!("I waited {} seconds!", seconds))
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/warp_test_02/main.rs:18:84
[INFO] [stdout]    |
[INFO] [stdout] 18 |   async fn sleepy(Seconds(seconds): Seconds) -> Result<impl warp::Reply, Infallible> {
[INFO] [stdout]    |  ____________________________________________________________________________________^
[INFO] [stdout] 19 | |     tokio::time::delay_for(Duration::from_secs(seconds)).await;
[INFO] [stdout] 20 | |     Ok(format!("I waited {} seconds!", seconds))
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/warp_test_02/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Ok(format!("I waited {} seconds!", seconds))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-playground` (bin "warp_test_02" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "7efd81aefe31035c309bfc75f6c19bd3b4fb3d07ec8ca51c539027ea80fc47df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7efd81aefe31035c309bfc75f6c19bd3b4fb3d07ec8ca51c539027ea80fc47df", kill_on_drop: false }`
[INFO] [stdout] 7efd81aefe31035c309bfc75f6c19bd3b4fb3d07ec8ca51c539027ea80fc47df
