[INFO] cloning repository https://github.com/hemantkgupta/prog-rust-2nd-ws
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hemantkgupta/prog-rust-2nd-ws" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemantkgupta%2Fprog-rust-2nd-ws", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemantkgupta%2Fprog-rust-2nd-ws'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e7ada8d537a54938271437fab1cb3e3a24f58da
[INFO] checking hemantkgupta/prog-rust-2nd-ws against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemantkgupta%2Fprog-rust-2nd-ws" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hemantkgupta/prog-rust-2nd-ws
[INFO] finished tweaking git repo https://github.com/hemantkgupta/prog-rust-2nd-ws
[INFO] tweaked toml for git repo https://github.com/hemantkgupta/prog-rust-2nd-ws written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hemantkgupta/prog-rust-2nd-ws on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hemantkgupta/prog-rust-2nd-ws 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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0083fa1b87840230cf82bf944cc7893d005272a2f79c2746a9beced08d352f0
[INFO] running `Command { std: "docker" "start" "-a" "c0083fa1b87840230cf82bf944cc7893d005272a2f79c2746a9beced08d352f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0083fa1b87840230cf82bf944cc7893d005272a2f79c2746a9beced08d352f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0083fa1b87840230cf82bf944cc7893d005272a2f79c2746a9beced08d352f0", kill_on_drop: false }`
[INFO] [stdout] c0083fa1b87840230cf82bf944cc7893d005272a2f79c2746a9beced08d352f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08113ae1c67960bb82576b30874d9c6fb4bd4da6178b9502bb1a336abd298fae
[INFO] running `Command { std: "docker" "start" "-a" "08113ae1c67960bb82576b30874d9c6fb4bd4da6178b9502bb1a336abd298fae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]     Checking value-bag v1.4.2
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling futures-channel v0.3.29
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[INFO] [stderr]     Checking num_cpus v1.16.0
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[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling openssl-sys v0.9.96
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.8+1.55.1
[INFO] [stderr]    Compiling rustix v0.38.26
[INFO] [stderr]    Compiling curl-sys v0.4.68+curl-8.4.0
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking log v0.4.20
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[INFO] [stderr]     Checking event-listener v4.0.0
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[INFO] [stderr]     Checking linux-raw-sys v0.4.12
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[INFO] [stderr]     Checking kv-log-macro v1.0.7
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[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking blocking v1.5.1
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[INFO] [stderr]    Compiling isahc v0.7.6
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[INFO] [stderr]     Checking build_server v0.1.0 (/opt/rustwide/workdir/build_server)
[INFO] [stderr]     Checking ch04_ownership v0.1.0 (/opt/rustwide/workdir/ch04_ownership)
[INFO] [stderr]     Checking ch03_fundamentals v0.1.0 (/opt/rustwide/workdir/ch03_fundamentals)
[INFO] [stderr]     Checking ch12_overloading v0.1.0 (/opt/rustwide/workdir/ch12_overloading)
[INFO] [stderr]     Checking ch08_crates_modules v0.1.0 (/opt/rustwide/workdir/ch08_crates_modules)
[INFO] [stdout] warning: struct `Millimeters` is never constructed
[INFO] [stdout]   --> ch12_overloading/src/arithmatic.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Millimeters(u32);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]   --> ch12_overloading/src/arithmatic.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Meters(u32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ch23_foreign_functions v0.1.0 (/opt/rustwide/workdir/ch23_foreign_functions)
[INFO] [stderr]     Checking ch16_collections v0.1.0 (/opt/rustwide/workdir/ch16_collections)
[INFO] [stdout] warning: struct `Millimeters` is never constructed
[INFO] [stdout]   --> ch12_overloading/src/arithmatic.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Millimeters(u32);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]   --> ch12_overloading/src/arithmatic.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Meters(u32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ch02 v0.1.0 (/opt/rustwide/workdir/ch02)
[INFO] [stderr]     Checking ch11_traits_and_generics v0.1.0 (/opt/rustwide/workdir/ch11_traits_and_generics)
[INFO] [stderr]     Checking ch07_errors v0.1.0 (/opt/rustwide/workdir/ch07_errors)
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking async-io v1.13.0
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
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[INFO] [stderr]     Checking ch15_iterators v0.1.0 (/opt/rustwide/workdir/ch15_iterators)
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking ch19_concurrency v0.1.0 (/opt/rustwide/workdir/ch19_concurrency)
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking surf v1.0.3
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking polling v3.3.1
[INFO] [stderr]     Checking async-io v2.2.1
[INFO] [stderr]     Checking futures-util v0.3.29
[INFO] [stderr]     Checking async-global-executor v2.4.0
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]     Checking ch20_async v0.1.0 (/opt/rustwide/workdir/ch20_async)
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stdout] error: zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hyper-0.14.27/src/proto/h2/mod.rs:452:5
[INFO] [stdout]     |
[INFO] [stdout] 452 |     impossible: Impossible,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this field contains `Impossible`, which is not inhabited, and makes it not a breaking change to become non-zero-sized in the future.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hyper` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "08113ae1c67960bb82576b30874d9c6fb4bd4da6178b9502bb1a336abd298fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08113ae1c67960bb82576b30874d9c6fb4bd4da6178b9502bb1a336abd298fae", kill_on_drop: false }`
[INFO] [stdout] 08113ae1c67960bb82576b30874d9c6fb4bd4da6178b9502bb1a336abd298fae
