[INFO] cloning repository https://github.com/david-why/learn-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/david-why/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-why%2Flearn-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-why%2Flearn-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 68f61db1601ebfdbf11af59772a1998fae584c87 [INFO] checking david-why/learn-rust against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-why%2Flearn-rust" "/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/david-why/learn-rust [INFO] finished tweaking git repo https://github.com/david-why/learn-rust [INFO] tweaked toml for git repo https://github.com/david-why/learn-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/david-why/learn-rust 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/david-why/learn-rust 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] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] | [INFO] [stderr] = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bc18b8f1062c4cf6cec35a2c788f531e896ddb741923d5d9d7b4f7dbab2409e3 [INFO] running `Command { std: "docker" "start" "-a" "bc18b8f1062c4cf6cec35a2c788f531e896ddb741923d5d9d7b4f7dbab2409e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bc18b8f1062c4cf6cec35a2c788f531e896ddb741923d5d9d7b4f7dbab2409e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc18b8f1062c4cf6cec35a2c788f531e896ddb741923d5d9d7b4f7dbab2409e3", kill_on_drop: false }` [INFO] [stdout] bc18b8f1062c4cf6cec35a2c788f531e896ddb741923d5d9d7b4f7dbab2409e3 [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" "-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] 57ca837f2eac571d0c0c67985d314e54b154528aa5d4bcf32805610f4ccbe8e1 [INFO] running `Command { std: "docker" "start" "-a" "57ca837f2eac571d0c0c67985d314e54b154528aa5d4bcf32805610f4ccbe8e1", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] | [INFO] [stderr] = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling cc v1.1.1 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking http-body v1.0.1 [INFO] [stderr] Compiling serde v1.0.204 [INFO] [stderr] Checking tokio v1.38.0 [INFO] [stderr] Compiling syn v2.0.71 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking rustls-pki-types v1.7.0 [INFO] [stderr] Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep) [INFO] [stderr] Checking functions v0.1.0 (/opt/rustwide/workdir/functions) [INFO] [stderr] Checking rectangles v0.1.0 (/opt/rustwide/workdir/rectangles) [INFO] [stderr] Checking variables v0.1.0 (/opt/rustwide/workdir/variables) [INFO] [stderr] Checking slices v0.1.0 (/opt/rustwide/workdir/slices) [INFO] [stderr] Checking guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game) [INFO] [stderr] Checking branches v0.1.0 (/opt/rustwide/workdir/branches) [INFO] [stderr] Checking adder v0.1.0 (/opt/rustwide/workdir/adder) [INFO] [stderr] Checking hello_cargo v0.1.0 (/opt/rustwide/workdir/hello_cargo) [INFO] [stderr] Checking mybox v0.1.0 (/opt/rustwide/workdir/mybox) [INFO] [stderr] Checking loops v0.1.0 (/opt/rustwide/workdir/loops) [INFO] [stderr] Checking structs v0.1.0 (/opt/rustwide/workdir/structs) [INFO] [stderr] Checking rustls-pemfile v2.1.2 [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> loops/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let y = 'label: loop { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> loops/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let y = 'label: loop { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `black` [INFO] [stdout] --> structs/src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let black = Color(0, 0, 0); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_black` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subject` [INFO] [stdout] --> structs/src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let subject = AlwaysEqual; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user2` [INFO] [stdout] --> structs/src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let user2 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, `email`, and `sign_in_count` are never read [INFO] [stdout] --> structs/src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 2 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 3 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 4 | email: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 5 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> structs/src/main.rs:8:14 [INFO] [stdout] | [INFO] [stdout] 8 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `make_user` is never used [INFO] [stdout] --> structs/src/main.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn make_user(username: String, email: String) -> User { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `black` [INFO] [stdout] --> structs/src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let black = Color(0, 0, 0); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_black` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subject` [INFO] [stdout] --> structs/src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let subject = AlwaysEqual; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user2` [INFO] [stdout] --> structs/src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let user2 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, `email`, and `sign_in_count` are never read [INFO] [stdout] --> structs/src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 2 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 3 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 4 | email: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 5 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> structs/src/main.rs:8:14 [INFO] [stdout] | [INFO] [stdout] 8 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `make_user` is never used [INFO] [stdout] --> structs/src/main.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn make_user(username: String, email: String) -> User { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling openssl-sys v0.9.102 [INFO] [stderr] Compiling openssl v0.10.64 [INFO] [stderr] Compiling native-tls v0.2.12 [INFO] [stderr] Checking http-body-util v0.1.2 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Checking tokio-util v0.7.11 [INFO] [stderr] Checking h2 v0.4.5 [INFO] [stderr] Checking pin-project v1.1.5 [INFO] [stderr] Checking tower v0.4.13 [INFO] [stderr] Checking hyper v1.4.1 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [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-1.4.1/src/proto/h2/mod.rs:427:5 [INFO] [stdout] | [INFO] [stdout] 427 | 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" "57ca837f2eac571d0c0c67985d314e54b154528aa5d4bcf32805610f4ccbe8e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57ca837f2eac571d0c0c67985d314e54b154528aa5d4bcf32805610f4ccbe8e1", kill_on_drop: false }` [INFO] [stdout] 57ca837f2eac571d0c0c67985d314e54b154528aa5d4bcf32805610f4ccbe8e1