[INFO] cloning repository https://github.com/tkyk0317/r-debugger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tkyk0317/r-debugger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkyk0317%2Fr-debugger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkyk0317%2Fr-debugger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34a2ceeefefc25c20cee7db6f971a457997601a3
[INFO] checking tkyk0317/r-debugger against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkyk0317%2Fr-debugger" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tkyk0317/r-debugger
[INFO] finished tweaking git repo https://github.com/tkyk0317/r-debugger
[INFO] tweaked toml for git repo https://github.com/tkyk0317/r-debugger written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tkyk0317/r-debugger on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tkyk0317/r-debugger 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41e9c02d3acb230c015bd957d38f7c0914ab240b7fceebc990c9be98d2eddd4a
[INFO] running `Command { std: "docker" "start" "-a" "41e9c02d3acb230c015bd957d38f7c0914ab240b7fceebc990c9be98d2eddd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41e9c02d3acb230c015bd957d38f7c0914ab240b7fceebc990c9be98d2eddd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41e9c02d3acb230c015bd957d38f7c0914ab240b7fceebc990c9be98d2eddd4a", kill_on_drop: false }`
[INFO] [stdout] 41e9c02d3acb230c015bd957d38f7c0914ab240b7fceebc990c9be98d2eddd4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76ba1d7eae8f19664dfba536074e06d85c07b3ad369f2dc7c27966d88cd8a094
[INFO] running `Command { std: "docker" "start" "-a" "76ba1d7eae8f19664dfba536074e06d85c07b3ad369f2dc7c27966d88cd8a094", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling cpp_demangle v0.2.15
[INFO] [stderr]    Compiling symbolic-demangle v7.3.0
[INFO] [stderr]     Checking msvc-demangler v0.8.0
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking symbolic-common v7.3.0
[INFO] [stderr]     Checking r-debugger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:58:60
[INFO] [stdout]    |
[INFO] [stdout] 58 |     execv(&path, &[path.clone()]).expect("execv is failed");
[INFO] [stdout]    |     -------------------------------------------------------^ unreachable expression
[INFO] [stdout]    |     |
[INFO] [stdout]    |     any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     execv(&path, &[path.clone()]).expect("execv is failed");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `end_address` and `permission` are never read
[INFO] [stdout]   --> src/memory_map.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct MapInfo {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout]  9 |     pub start_address: String,
[INFO] [stdout] 10 |     pub end_address: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 11 |     pub permission: String,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MapInfo` has derived impls for the traits `Clone` and `Debug`, but these are 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/debugger.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get(&self) -> &Vec<Breakpoint> {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                |         |    |
[INFO] [stdout]    |                |         |    the same lifetime is hidden here
[INFO] [stdout]    |                |         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get(&self) -> &Vec<Breakpoint<'_>> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/debugger.rs:61:36
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn search<T: AddressTrait>(&self, addr: &T) -> Option<&Breakpoint> {
[INFO] [stdout]    |                                    ^^^^^                      ^^^^^^^^^^^
[INFO] [stdout]    |                                    |                          ||
[INFO] [stdout]    |                                    |                          |the same lifetime is hidden here
[INFO] [stdout]    |                                    |                          the same lifetime is elided here
[INFO] [stdout]    |                                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn search<T: AddressTrait>(&self, addr: &T) -> Option<&Breakpoint<'_>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/debugger.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn delete(&mut self, index: usize) -> Option<Breakpoint> {
[INFO] [stdout]    |                   ^^^^^^^^^                          ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn delete(&mut self, index: usize) -> Option<Breakpoint<'_>> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/debugger.rs:229:26
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 .map(|e| e.parse().ok().unwrap())
[INFO] [stdout]     |                          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `r-debugger` (bin "r-debugger") due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:58:60
[INFO] [stdout]    |
[INFO] [stdout] 58 |     execv(&path, &[path.clone()]).expect("execv is failed");
[INFO] [stdout]    |     -------------------------------------------------------^ unreachable expression
[INFO] [stdout]    |     |
[INFO] [stdout]    |     any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     execv(&path, &[path.clone()]).expect("execv is failed");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `end_address` and `permission` are never read
[INFO] [stdout]   --> src/memory_map.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct MapInfo {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout]  9 |     pub start_address: String,
[INFO] [stdout] 10 |     pub end_address: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 11 |     pub permission: String,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MapInfo` has derived impls for the traits `Clone` and `Debug`, but these are 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/debugger.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get(&self) -> &Vec<Breakpoint> {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                |         |    |
[INFO] [stdout]    |                |         |    the same lifetime is hidden here
[INFO] [stdout]    |                |         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get(&self) -> &Vec<Breakpoint<'_>> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/debugger.rs:61:36
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn search<T: AddressTrait>(&self, addr: &T) -> Option<&Breakpoint> {
[INFO] [stdout]    |                                    ^^^^^                      ^^^^^^^^^^^
[INFO] [stdout]    |                                    |                          ||
[INFO] [stdout]    |                                    |                          |the same lifetime is hidden here
[INFO] [stdout]    |                                    |                          the same lifetime is elided here
[INFO] [stdout]    |                                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn search<T: AddressTrait>(&self, addr: &T) -> Option<&Breakpoint<'_>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/debugger.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn delete(&mut self, index: usize) -> Option<Breakpoint> {
[INFO] [stdout]    |                   ^^^^^^^^^                          ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn delete(&mut self, index: usize) -> Option<Breakpoint<'_>> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/debugger.rs:229:26
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 .map(|e| e.parse().ok().unwrap())
[INFO] [stdout]     |                          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `r-debugger` (bin "r-debugger" test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "76ba1d7eae8f19664dfba536074e06d85c07b3ad369f2dc7c27966d88cd8a094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ba1d7eae8f19664dfba536074e06d85c07b3ad369f2dc7c27966d88cd8a094", kill_on_drop: false }`
[INFO] [stdout] 76ba1d7eae8f19664dfba536074e06d85c07b3ad369f2dc7c27966d88cd8a094
