[INFO] cloning repository https://github.com/BjoernSchultze/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/BjoernSchultze/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBjoernSchultze%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBjoernSchultze%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2758b7ea8198d66ea6d2b16c8d4ae48aba24bab0
[INFO] checking BjoernSchultze/learn-rust against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBjoernSchultze%2Flearn-rust" "/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/BjoernSchultze/learn-rust
[INFO] finished tweaking git repo https://github.com/BjoernSchultze/learn-rust
[INFO] tweaked toml for git repo https://github.com/BjoernSchultze/learn-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BjoernSchultze/learn-rust on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BjoernSchultze/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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3e15a20aad90c723f9f3832f4832332722868dd0c985ea312b64359006d211f
[INFO] running `Command { std: "docker" "start" "-a" "d3e15a20aad90c723f9f3832f4832332722868dd0c985ea312b64359006d211f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3e15a20aad90c723f9f3832f4832332722868dd0c985ea312b64359006d211f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e15a20aad90c723f9f3832f4832332722868dd0c985ea312b64359006d211f", kill_on_drop: false }`
[INFO] [stdout] d3e15a20aad90c723f9f3832f4832332722868dd0c985ea312b64359006d211f
[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" "-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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd45fedbdae2782a17e4fc81ab6d1b99f940f89db43471a31b637beb52eed612
[INFO] running `Command { std: "docker" "start" "-a" "bd45fedbdae2782a17e4fc81ab6d1b99f940f89db43471a31b637beb52eed612", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/demos/mod.rs:295:11
[INFO] [stdout]     |
[INFO] [stdout] 295 |     Write(String),
[INFO] [stdout]     |     ----- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 295 -     Write(String),
[INFO] [stdout] 295 +     Write(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/demos/mod.rs:296:17
[INFO] [stdout]     |
[INFO] [stdout] 296 |     ChangeColor(i32, i32, i32),
[INFO] [stdout]     |     ----------- ^^^  ^^^  ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 296 -     ChangeColor(i32, i32, i32),
[INFO] [stdout] 296 +     ChangeColor((), (), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calling` is never used
[INFO] [stdout]    --> src/demos/mod.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 299 | impl Message {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 303 |     fn calling(&self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/demos/mod.rs:295:11
[INFO] [stdout]     |
[INFO] [stdout] 295 |     Write(String),
[INFO] [stdout]     |     ----- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 295 -     Write(String),
[INFO] [stdout] 295 +     Write(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/demos/mod.rs:296:17
[INFO] [stdout]     |
[INFO] [stdout] 296 |     ChangeColor(i32, i32, i32),
[INFO] [stdout]     |     ----------- ^^^  ^^^  ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 296 -     ChangeColor(i32, i32, i32),
[INFO] [stdout] 296 +     ChangeColor((), (), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calling` is never used
[INFO] [stdout]    --> src/demos/mod.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 299 | impl Message {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 303 |     fn calling(&self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "bd45fedbdae2782a17e4fc81ab6d1b99f940f89db43471a31b637beb52eed612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd45fedbdae2782a17e4fc81ab6d1b99f940f89db43471a31b637beb52eed612", kill_on_drop: false }`
[INFO] [stdout] bd45fedbdae2782a17e4fc81ab6d1b99f940f89db43471a31b637beb52eed612
