[INFO] cloning repository https://github.com/ZZH-Finalize/rust-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ZZH-Finalize/rust-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZZH-Finalize%2Frust-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZZH-Finalize%2Frust-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 188d9ab2716abb76a85595ce6d0911fadbb90d85
[INFO] checking ZZH-Finalize/rust-demo against c999cef531ea9059e189e82fe0e82c5daf249bc9 for pr-152972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZZH-Finalize%2Frust-demo" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ZZH-Finalize/rust-demo
[INFO] finished tweaking git repo https://github.com/ZZH-Finalize/rust-demo
[INFO] tweaked toml for git repo https://github.com/ZZH-Finalize/rust-demo written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ZZH-Finalize/rust-demo on toolchain c999cef531ea9059e189e82fe0e82c5daf249bc9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c999cef531ea9059e189e82fe0e82c5daf249bc9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ZZH-Finalize/rust-demo 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" "+c999cef531ea9059e189e82fe0e82c5daf249bc9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59
[INFO] running `Command { std: "docker" "start" "e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59" "/opt/rustwide/cargo-home/bin/cargo" "+c999cef531ea9059e189e82fe0e82c5daf249bc9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59" "/opt/rustwide/cargo-home/bin/cargo" "+c999cef531ea9059e189e82fe0e82c5daf249bc9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Serializer`
[INFO] [stdout]  --> src/bin/serde_custom.rs:1:72
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{de::Visitor, ser::SerializeStruct, Deserialize, Serialize, Serializer};
[INFO] [stdout]   |                                                                        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Write`
[INFO] [stdout]  --> src/bin/serde_custom.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt::Write, process::ExitCode};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::Visitor`
[INFO] [stdout]  --> src/bin/serde_demo.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{self, de::Visitor, Deserialize, Serialize};
[INFO] [stdout]   |                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Add`
[INFO] [stdout]  --> src/bin/serde_demo.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{ops::Add, process::ExitCode};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]   --> src/bin/inner_traits.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub struct SomeType1 {
[INFO] [stdout]    |                --------- field in this struct
[INFO] [stdout] 55 |         pub val: u32,
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SomeType1` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::Visitor`
[INFO] [stdout]  --> src/bin/serde_demo.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{self, de::Visitor, Deserialize, Serialize};
[INFO] [stdout]   |                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Add`
[INFO] [stdout]  --> src/bin/serde_demo.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{ops::Add, process::ExitCode};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Serializer`
[INFO] [stdout]  --> src/bin/serde_custom.rs:1:72
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{de::Visitor, ser::SerializeStruct, Deserialize, Serialize, Serializer};
[INFO] [stdout]   |                                                                        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Write`
[INFO] [stdout]  --> src/bin/serde_custom.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt::Write, process::ExitCode};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeType1` is never constructed
[INFO] [stdout]  --> src/bin/inner_traits.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub struct SomeType1 {
[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 `SomeType2` is never constructed
[INFO] [stdout]  --> src/bin/inner_traits.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub struct SomeType2 {
[INFO] [stdout]   |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeType1` is never constructed
[INFO] [stdout]   --> src/bin/inner_traits.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub struct SomeType1 {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeType2` is never constructed
[INFO] [stdout]   --> src/bin/inner_traits.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub struct SomeType2 {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeType3` is never constructed
[INFO] [stdout]   --> src/bin/inner_traits.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub struct SomeType3 {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]   --> src/bin/inner_traits.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub struct SomeType1 {
[INFO] [stdout]    |                --------- field in this struct
[INFO] [stdout] 55 |         pub val: u32,
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SomeType1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeType1` is never constructed
[INFO] [stdout]   --> src/bin/inner_traits.rs:71:16
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub struct SomeType1 {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeType2` is never constructed
[INFO] [stdout]   --> src/bin/inner_traits.rs:76:16
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub struct SomeType2 {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5m 32s
[INFO] running `Command { std: "docker" "inspect" "e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59", kill_on_drop: false }`
[INFO] [stdout] e07ae2c27ae8e162fe76c3d4629bdd8a42a5a738270618e7ee9666fd2d700c59