[INFO] cloning repository https://github.com/elumbantoruan/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/elumbantoruan/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felumbantoruan%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felumbantoruan%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6610431feac214637f2a6682772c69299c47e37c
[INFO] checking elumbantoruan/learn-rust against try#ad93f57d532978d6739002a21bc66b45ed22f998 for pr-155418-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felumbantoruan%2Flearn-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/elumbantoruan/learn-rust
[INFO] finished tweaking git repo https://github.com/elumbantoruan/learn-rust
[INFO] tweaked toml for git repo https://github.com/elumbantoruan/learn-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/elumbantoruan/learn-rust on toolchain ad93f57d532978d6739002a21bc66b45ed22f998
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/elumbantoruan/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" "+ad93f57d532978d6739002a21bc66b45ed22f998" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b30695b51d1c9e884be08a08879d9c65aeae24a1c40dfc9eee7116c99473817
[INFO] running `Command { std: "docker" "start" "-a" "3b30695b51d1c9e884be08a08879d9c65aeae24a1c40dfc9eee7116c99473817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b30695b51d1c9e884be08a08879d9c65aeae24a1c40dfc9eee7116c99473817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b30695b51d1c9e884be08a08879d9c65aeae24a1c40dfc9eee7116c99473817", kill_on_drop: false }`
[INFO] [stdout] 3b30695b51d1c9e884be08a08879d9c65aeae24a1c40dfc9eee7116c99473817
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0e78b6ab8c741ed749175379fa65ba53ce2f3aeae86be4acf09ae859055caa2
[INFO] running `Command { std: "docker" "start" "-a" "d0e78b6ab8c741ed749175379fa65ba53ce2f3aeae86be4acf09ae859055caa2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking ch07-backyard v0.1.0 (/opt/rustwide/workdir/ch07-backyard)
[INFO] [stderr]     Checking ch05-structs v0.1.0 (/opt/rustwide/workdir/ch05-structs)
[INFO] [stderr]     Checking ch01-hello-cargo v0.1.0 (/opt/rustwide/workdir/ch01-hello-cargo)
[INFO] [stderr]     Checking ch04-ownership v0.1.0 (/opt/rustwide/workdir/ch04-ownership)
[INFO] [stderr]     Checking ch03-variables v0.1.0 (/opt/rustwide/workdir/ch03-variables)
[INFO] [stderr]     Checking ch06-enum-pattern-matching v0.1.0 (/opt/rustwide/workdir/ch06-enum-pattern-matching)
[INFO] [stdout] warning: unused import: `std::sync::OnceState`
[INFO] [stdout]  --> ch06-enum-pattern-matching/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::OnceState;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     V4(u8, u8, u8, u8),
[INFO] [stdout]    |     -- ^^  ^^  ^^  ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 68 -     V4(u8, u8, u8, u8),
[INFO] [stdout] 68 +     V4((), (), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 |     V6(String),
[INFO] [stdout]    |     -- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 69 -     V6(String),
[INFO] [stdout] 69 +     V6(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:76:11
[INFO] [stdout]    |
[INFO] [stdout] 76 |     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] 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] 76 -     Write(String),
[INFO] [stdout] 76 +     Write(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | enum Message {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 74 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 75 |     Move { x: i32, y: i32},
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 76 |     Write(String),
[INFO] [stdout] 77 |     ChangeColor(i32, i32, i32),
[INFO] [stdout]    |     ^^^^^^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `California` is never constructed
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | enum USState {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 88 |     California,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `USState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nickel` and `Dime` are never constructed
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | enum Coin {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 93 |     Penny,
[INFO] [stdout] 94 |     Nickel,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 95 |     Dime,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::OnceState`
[INFO] [stdout]  --> ch06-enum-pattern-matching/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::OnceState;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     V4(u8, u8, u8, u8),
[INFO] [stdout]    |     -- ^^  ^^  ^^  ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 68 -     V4(u8, u8, u8, u8),
[INFO] [stdout] 68 +     V4((), (), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 |     V6(String),
[INFO] [stdout]    |     -- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 69 -     V6(String),
[INFO] [stdout] 69 +     V6(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:76:11
[INFO] [stdout]    |
[INFO] [stdout] 76 |     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] 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] 76 -     Write(String),
[INFO] [stdout] 76 +     Write(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | enum Message {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 74 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 75 |     Move { x: i32, y: i32},
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 76 |     Write(String),
[INFO] [stdout] 77 |     ChangeColor(i32, i32, i32),
[INFO] [stdout]    |     ^^^^^^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `California` is never constructed
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | enum USState {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 88 |     California,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `USState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nickel` and `Dime` are never constructed
[INFO] [stdout]   --> ch06-enum-pattern-matching/src/main.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | enum Coin {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 93 |     Penny,
[INFO] [stdout] 94 |     Nickel,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 95 |     Dime,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.11
[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 ch02-guessing-games v0.1.0 (/opt/rustwide/workdir/ch02-guessing-games)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "d0e78b6ab8c741ed749175379fa65ba53ce2f3aeae86be4acf09ae859055caa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0e78b6ab8c741ed749175379fa65ba53ce2f3aeae86be4acf09ae859055caa2", kill_on_drop: false }`
[INFO] [stdout] d0e78b6ab8c741ed749175379fa65ba53ce2f3aeae86be4acf09ae859055caa2
