[INFO] cloning repository https://github.com/ftilde/ugdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ftilde/ugdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fugdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fugdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 891106a1ba54a68faaf084ec63b94674256c62c0
[INFO] checking ftilde/ugdb 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%2Fftilde%2Fugdb" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ftilde/ugdb
[INFO] finished tweaking git repo https://github.com/ftilde/ugdb
[INFO] tweaked toml for git repo https://github.com/ftilde/ugdb written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ftilde/ugdb 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/ftilde/ugdb 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 46deb9acb4e369c5d01c972f522f07fdafd0bfbbd02ab217dc2505778dba1f72
[INFO] running `Command { std: "docker" "start" "-a" "46deb9acb4e369c5d01c972f522f07fdafd0bfbbd02ab217dc2505778dba1f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46deb9acb4e369c5d01c972f522f07fdafd0bfbbd02ab217dc2505778dba1f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46deb9acb4e369c5d01c972f522f07fdafd0bfbbd02ab217dc2505778dba1f72", kill_on_drop: false }`
[INFO] [stdout] 46deb9acb4e369c5d01c972f522f07fdafd0bfbbd02ab217dc2505778dba1f72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d286b37f09247c4dcf5c0e7d66db48a539ec5fdca509a21a89c0ec84b004d848
[INFO] running `Command { std: "docker" "start" "-a" "d286b37f09247c4dcf5c0e7d66db48a539ec5fdca509a21a89c0ec84b004d848", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling ndarray v0.8.4
[INFO] [stderr]    Compiling num-complex v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]     Checking str_indices v0.4.4
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]    Compiling plist v0.2.4
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking chrono v0.4.40
[INFO] [stderr]     Checking ropey v1.6.1
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking parse_int v0.5.0
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling onig_sys v68.2.1
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]     Checking raw_tty v0.1.0
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling ugdb v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking flexi_logger v0.11.5
[INFO] [stderr]     Checking onig v3.2.2
[INFO] [stderr]     Checking unsegen v0.3.1
[INFO] [stderr]     Checking unsegen_jsonviewer v0.3.0
[INFO] [stderr]     Checking unsegen_terminal v0.3.2
[INFO] [stderr]     Checking unsegen_signals v0.3.0
[INFO] [stderr]     Checking syntect v2.1.0
[INFO] [stderr]     Checking unsegen_pager v0.3.0
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[derive(StructOpt)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/gdb_expression_parsing/mod.rs:9:39
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn parse_gdb_value(result_string: &str) -> Result<Node, ParseError> {
[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]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn parse_gdb_value(result_string: &str) -> Result<Node<'_>, ParseError> {
[INFO] [stdout]   |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ugdb` (bin "ugdb") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[derive(StructOpt)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/gdb_expression_parsing/mod.rs:9:39
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn parse_gdb_value(result_string: &str) -> Result<Node, ParseError> {
[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]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn parse_gdb_value(result_string: &str) -> Result<Node<'_>, ParseError> {
[INFO] [stdout]   |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ugdb` (bin "ugdb" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d286b37f09247c4dcf5c0e7d66db48a539ec5fdca509a21a89c0ec84b004d848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d286b37f09247c4dcf5c0e7d66db48a539ec5fdca509a21a89c0ec84b004d848", kill_on_drop: false }`
[INFO] [stdout] d286b37f09247c4dcf5c0e7d66db48a539ec5fdca509a21a89c0ec84b004d848