[INFO] cloning repository https://github.com/kasshii28/Study-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kasshii28/Study-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkasshii28%2FStudy-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkasshii28%2FStudy-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 70b4697bc43ce762017ec48aa3e142c053f46941
[INFO] building kasshii28/Study-Rust against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkasshii28%2FStudy-Rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kasshii28/Study-Rust on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kasshii28/Study-Rust
[INFO] finished tweaking git repo https://github.com/kasshii28/Study-Rust
[INFO] tweaked toml for git repo https://github.com/kasshii28/Study-Rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kasshii28/Study-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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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] 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b55fc4c2785999458f209b1e203080c439b6b0dfb222a5045364716ade66f7c
[INFO] running `Command { std: "docker" "start" "-a" "5b55fc4c2785999458f209b1e203080c439b6b0dfb222a5045364716ade66f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b55fc4c2785999458f209b1e203080c439b6b0dfb222a5045364716ade66f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b55fc4c2785999458f209b1e203080c439b6b0dfb222a5045364716ade66f7c", kill_on_drop: false }`
[INFO] [stdout] 5b55fc4c2785999458f209b1e203080c439b6b0dfb222a5045364716ade66f7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4267d4237041fe8f29c943923b4ebdd2b90dbda27ccae168c4e2657ff667b7d0
[INFO] running `Command { std: "docker" "start" "-a" "4267d4237041fe8f29c943923b4ebdd2b90dbda27ccae168c4e2657ff667b7d0", 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] 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 minicliapp v0.1.0 (/opt/rustwide/workdir/minicliapp)
[INFO] [stderr]    Compiling match_iflet v0.1.0 (/opt/rustwide/workdir/match_iflet)
[INFO] [stderr]    Compiling lifetime v0.1.0 (/opt/rustwide/workdir/lifetime)
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]    Compiling Enum v0.1.0 (/opt/rustwide/workdir/Enum)
[INFO] [stderr]    Compiling auto_test v0.1.0 (/opt/rustwide/workdir/auto_test)
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stderr]    Compiling collection v0.1.0 (/opt/rustwide/workdir/collection)
[INFO] [stderr]    Compiling module v0.1.0 (/opt/rustwide/workdir/module)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]    Compiling primitive_type v0.1.0 (/opt/rustwide/workdir/primitive_type)
[INFO] [stderr]    Compiling control_flow v0.1.0 (/opt/rustwide/workdir/control_flow)
[INFO] [stderr]    Compiling struct_instance v0.1.0 (/opt/rustwide/workdir/struct_instance)
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/rustwide/workdir/variables)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> auto_test/src/main.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn greeting(name: &str) -> String {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> auto_test/src/main.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 62 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `content`, `reply`, and `retweet` are never read
[INFO] [stdout]   --> generics/src/main.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub struct Tweet {
[INFO] [stdout]    |                ----- fields in this struct
[INFO] [stdout] 39 |         pub username: String,
[INFO] [stdout] 40 |         pub content: String,
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout] 41 |         pub reply: bool,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 42 |         pub retweet: bool,
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_config` is never used
[INFO] [stdout]   --> minicliapp/src/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn parse_config(args:&[String]) -> (&str, &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "4267d4237041fe8f29c943923b4ebdd2b90dbda27ccae168c4e2657ff667b7d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4267d4237041fe8f29c943923b4ebdd2b90dbda27ccae168c4e2657ff667b7d0", kill_on_drop: false }`
[INFO] [stdout] 4267d4237041fe8f29c943923b4ebdd2b90dbda27ccae168c4e2657ff667b7d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b41f5437926b6ee469abac8ddcc04b394b28a5e71f4bd71c43675f541ed5d5d6
[INFO] running `Command { std: "docker" "start" "-a" "b41f5437926b6ee469abac8ddcc04b394b28a5e71f4bd71c43675f541ed5d5d6", 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] 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 control_flow v0.1.0 (/opt/rustwide/workdir/control_flow)
[INFO] [stderr]    Compiling match_iflet v0.1.0 (/opt/rustwide/workdir/match_iflet)
[INFO] [stderr]    Compiling lifetime v0.1.0 (/opt/rustwide/workdir/lifetime)
[INFO] [stderr]    Compiling minicliapp v0.1.0 (/opt/rustwide/workdir/minicliapp)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]    Compiling struct_instance v0.1.0 (/opt/rustwide/workdir/struct_instance)
[INFO] [stderr]    Compiling auto_test v0.1.0 (/opt/rustwide/workdir/auto_test)
[INFO] [stderr]    Compiling collection v0.1.0 (/opt/rustwide/workdir/collection)
[INFO] [stderr]    Compiling module v0.1.0 (/opt/rustwide/workdir/module)
[INFO] [stderr]    Compiling primitive_type v0.1.0 (/opt/rustwide/workdir/primitive_type)
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/rustwide/workdir/variables)
[INFO] [stderr]    Compiling Enum v0.1.0 (/opt/rustwide/workdir/Enum)
[INFO] [stdout] warning: function `parse_config` is never used
[INFO] [stdout]   --> minicliapp/src/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn parse_config(args:&[String]) -> (&str, &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> auto_test/src/main.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn greeting(name: &str) -> String {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> auto_test/src/main.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 62 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "b41f5437926b6ee469abac8ddcc04b394b28a5e71f4bd71c43675f541ed5d5d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b41f5437926b6ee469abac8ddcc04b394b28a5e71f4bd71c43675f541ed5d5d6", kill_on_drop: false }`
[INFO] [stdout] b41f5437926b6ee469abac8ddcc04b394b28a5e71f4bd71c43675f541ed5d5d6