[INFO] cloning repository https://github.com/hirose-tomoyuki/dbgr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hirose-tomoyuki/dbgr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhirose-tomoyuki%2Fdbgr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhirose-tomoyuki%2Fdbgr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 767cc7b41c9a08810a715d1f93c4ed5acbf6a8c4
[INFO] checking hirose-tomoyuki/dbgr 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%2Fhirose-tomoyuki%2Fdbgr" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hirose-tomoyuki/dbgr
[INFO] finished tweaking git repo https://github.com/hirose-tomoyuki/dbgr
[INFO] tweaked toml for git repo https://github.com/hirose-tomoyuki/dbgr written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hirose-tomoyuki/dbgr 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/hirose-tomoyuki/dbgr 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] [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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 875bfabd21e91400ae86dfbd3fbcac3fcdc85974e10aaeea4c55183c740d070c
[INFO] running `Command { std: "docker" "start" "-a" "875bfabd21e91400ae86dfbd3fbcac3fcdc85974e10aaeea4c55183c740d070c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "875bfabd21e91400ae86dfbd3fbcac3fcdc85974e10aaeea4c55183c740d070c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "875bfabd21e91400ae86dfbd3fbcac3fcdc85974e10aaeea4c55183c740d070c", kill_on_drop: false }`
[INFO] [stdout] 875bfabd21e91400ae86dfbd3fbcac3fcdc85974e10aaeea4c55183c740d070c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5d133fc815d4baff7392bb622d06a30d3097809a89fcc0e3a5feb6fb4d569945
[INFO] running `Command { std: "docker" "start" "-a" "5d133fc815d4baff7392bb622d06a30d3097809a89fcc0e3a5feb6fb4d569945", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling clap_lex v0.2.2
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]    Compiling symbolic-demangle v9.1.1
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling clang-sys v1.3.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v4.2.4
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking msvc-demangler v0.9.0
[INFO] [stderr]    Compiling proc-maps v0.2.1
[INFO] [stderr]    Compiling clap v3.2.8
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking memmap2 v0.5.5
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking nix v0.24.1
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking symbolic-common v9.1.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.7
[INFO] [stderr]    Compiling serde_repr v0.1.8
[INFO] [stderr]    Compiling dbgr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking symbolic v9.1.1
[INFO] [stderr]     Checking syscalls v0.6.3
[INFO] [stdout] warning: struct `DebuggeeInfo` is never constructed
[INFO] [stdout]  --> src/target.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct DebuggeeInfo {}
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/args.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub file: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub args: Vec<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dbgr` (bin "dbgr") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `DebuggeeInfo` is never constructed
[INFO] [stdout]  --> src/target.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct DebuggeeInfo {}
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/args.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub file: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub args: Vec<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dbgr` (bin "dbgr" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5d133fc815d4baff7392bb622d06a30d3097809a89fcc0e3a5feb6fb4d569945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d133fc815d4baff7392bb622d06a30d3097809a89fcc0e3a5feb6fb4d569945", kill_on_drop: false }`
[INFO] [stdout] 5d133fc815d4baff7392bb622d06a30d3097809a89fcc0e3a5feb6fb4d569945