[INFO] cloning repository https://github.com/j5ik2o/sandbox-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j5ik2o/sandbox-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj5ik2o%2Fsandbox-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj5ik2o%2Fsandbox-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df47ac15d773a357caf7d93c3cd4319c65b74477
[INFO] checking j5ik2o/sandbox-rs against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj5ik2o%2Fsandbox-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j5ik2o/sandbox-rs on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/j5ik2o/sandbox-rs
[INFO] finished tweaking git repo https://github.com/j5ik2o/sandbox-rs
[INFO] tweaked toml for git repo https://github.com/j5ik2o/sandbox-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/j5ik2o/sandbox-rs 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" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tailcall v0.1.6
[INFO] [stderr]   Downloaded tailcall-impl v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8b6357c8a4594fa65b74c53c6cae917e6aa48a1b7c2f9f6f3662c938df99c53
[INFO] running `Command { std: "docker" "start" "-a" "a8b6357c8a4594fa65b74c53c6cae917e6aa48a1b7c2f9f6f3662c938df99c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8b6357c8a4594fa65b74c53c6cae917e6aa48a1b7c2f9f6f3662c938df99c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b6357c8a4594fa65b74c53c6cae917e6aa48a1b7c2f9f6f3662c938df99c53", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 507d0290f750430fbed6ad517c50bdd27b7575733aa29dac16863628548007aa
[INFO] running `Command { std: "docker" "start" "-a" "507d0290f750430fbed6ad517c50bdd27b7575733aa29dac16863628548007aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking bigdecimal v0.1.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling tailcall-impl v0.1.6
[INFO] [stderr]     Checking tailcall v0.1.6
[INFO] [stderr]     Checking sandbox-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Value` is never constructed
[INFO] [stdout]   --> src/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Value(i32);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main1` is never used
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn main1() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/address_book.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl AddressEntryId {
[INFO] [stdout]   | ------------------- associated function in this implementation
[INFO] [stdout] 5 |   pub(crate) fn new(value: u64) -> Self {
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `USD` and `JPY` are never constructed
[INFO] [stdout]  --> src/currency.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Currency {
[INFO] [stdout]   |          -------- variants in this enum
[INFO] [stdout] 5 |   USD,
[INFO] [stdout]   |   ^^^
[INFO] [stdout] 6 |   JPY,
[INFO] [stdout]   |   ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Currency` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/thread.rs:41:3
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Member {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 40 |   id: MemberId,
[INFO] [stdout] 41 |   name: MemberName,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Member` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/thread.rs:66:24
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct MessageText(String);
[INFO] [stdout]    |            ----------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `MessageText` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> src/thread.rs:78:3
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Message {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 78 |   text: MessageText,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/thread.rs:99:3
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub struct Thread {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 99 |   id: ThreadId,
[INFO] [stdout]    |   ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/user_names.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct UserName(String);
[INFO] [stdout]   |            -------- ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `UserName` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     tokio::join!(h1, h2);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::join` which comes from the expansion of the macro `tokio::join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     tokio::join!(h1, h2);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `$crate::join` which comes from the expansion of the macro `tokio::join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Value` is never constructed
[INFO] [stdout]   --> src/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Value(i32);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main1` is never used
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn main1() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `USD` and `JPY` are never constructed
[INFO] [stdout]  --> src/currency.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Currency {
[INFO] [stdout]   |          -------- variants in this enum
[INFO] [stdout] 5 |   USD,
[INFO] [stdout]   |   ^^^
[INFO] [stdout] 6 |   JPY,
[INFO] [stdout]   |   ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Currency` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/thread.rs:41:3
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Member {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 40 |   id: MemberId,
[INFO] [stdout] 41 |   name: MemberName,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Member` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/thread.rs:66:24
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct MessageText(String);
[INFO] [stdout]    |            ----------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `MessageText` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> src/thread.rs:78:3
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Message {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 78 |   text: MessageText,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/thread.rs:99:3
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub struct Thread {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 99 |   id: ThreadId,
[INFO] [stdout]    |   ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/user_names.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct UserName(String);
[INFO] [stdout]   |            -------- ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `UserName` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     tokio::join!(h1, h2);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::join` which comes from the expansion of the macro `tokio::join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     tokio::join!(h1, h2);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `$crate::join` which comes from the expansion of the macro `tokio::join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `Command { std: "docker" "inspect" "507d0290f750430fbed6ad517c50bdd27b7575733aa29dac16863628548007aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507d0290f750430fbed6ad517c50bdd27b7575733aa29dac16863628548007aa", kill_on_drop: false }`
[INFO] [stdout] 507d0290f750430fbed6ad517c50bdd27b7575733aa29dac16863628548007aa