[INFO] fetching crate bstree-file-readonly 0.1.1...
[INFO] checking bstree-file-readonly-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate bstree-file-readonly 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate bstree-file-readonly 0.1.1
[INFO] finished tweaking crates.io crate bstree-file-readonly 0.1.1
[INFO] tweaked toml for crates.io crate bstree-file-readonly 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bstree-file-readonly 0.1.1 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 crates.io crate bstree-file-readonly 0.1.1 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a6c5680adf798a466dcd7dd2278b2aeb8eaa67da45596337c7f45917941d7d8a
[INFO] running `Command { std: "docker" "start" "-a" "a6c5680adf798a466dcd7dd2278b2aeb8eaa67da45596337c7f45917941d7d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6c5680adf798a466dcd7dd2278b2aeb8eaa67da45596337c7f45917941d7d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c5680adf798a466dcd7dd2278b2aeb8eaa67da45596337c7f45917941d7d8a", kill_on_drop: false }`
[INFO] [stdout] a6c5680adf798a466dcd7dd2278b2aeb8eaa67da45596337c7f45917941d7d8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 93c5b644aba4766575518d11952b7236a3f94bbd0a3c9545f3b2e4ef0171499b
[INFO] running `Command { std: "docker" "start" "-a" "93c5b644aba4766575518d11952b7236a3f94bbd0a3c9545f3b2e4ef0171499b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking bstree-file-readonly v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `GetProcess` is never constructed
[INFO] [stdout]     --> src/bstree.rs:2391:8
[INFO] [stdout]      |
[INFO] [stdout] 2391 | struct GetProcess<'a> {
[INFO] [stdout]      |        ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GetExactProcess` is never constructed
[INFO] [stdout]     --> src/bstree.rs:2427:8
[INFO] [stdout]      |
[INFO] [stdout] 2427 | struct GetExactProcess<'a> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GetProcess` is never constructed
[INFO] [stdout]     --> src/bstree.rs:2391:8
[INFO] [stdout]      |
[INFO] [stdout] 2391 | struct GetProcess<'a> {
[INFO] [stdout]      |        ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GetExactProcess` is never constructed
[INFO] [stdout]     --> src/bstree.rs:2427:8
[INFO] [stdout]      |
[INFO] [stdout] 2427 | struct GetExactProcess<'a> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/colargs.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 | /   #[structopt(short = "i", long)]
[INFO] [stdout] 20 | |   /// Index or Name of the column containing the identifier (else the order in the input file is used, starting at 0)
[INFO] [stdout] 21 | |   id: Option<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/cliargs/colargs.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 | /   #[structopt(short = "v", long, default_value = "0")]
[INFO] [stdout] 23 | |   /// Index or Name of the column containing the value to be indexed
[INFO] [stdout] 24 | |   val: String,
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     #[structopt(short = "v", long)]
[INFO] [stdout] 40 | |     value: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | /     #[structopt(long)]
[INFO] [stdout] 54 | |     d_max: Option<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     #[structopt(short = "v", long)]
[INFO] [stdout] 60 | |     value: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     #[structopt(long)]
[INFO] [stdout] 64 | |     d_max: Option<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | /     #[structopt(short = "f", long = "from")]
[INFO] [stdout] 70 | |     /// HLower value of the range
[INFO] [stdout] 71 | |     lo: String,
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | /     #[structopt(short = "t", long = "to")]
[INFO] [stdout] 73 | |     /// Higher value of the range
[INFO] [stdout] 74 | |     hi: String,
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/colargs.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 | /   #[structopt(short = "i", long)]
[INFO] [stdout] 20 | |   /// Index or Name of the column containing the identifier (else the order in the input file is used, starting at 0)
[INFO] [stdout] 21 | |   id: Option<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/cliargs/colargs.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 | /   #[structopt(short = "v", long, default_value = "0")]
[INFO] [stdout] 23 | |   /// Index or Name of the column containing the value to be indexed
[INFO] [stdout] 24 | |   val: String,
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:88:11
[INFO] [stdout]    |
[INFO] [stdout] 88 |   Value { value: String },
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:91:10
[INFO] [stdout]    |
[INFO] [stdout] 91 |   List { file: PathBuf },
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     #[structopt(short = "v", long)]
[INFO] [stdout] 40 | |     value: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | /     #[structopt(long)]
[INFO] [stdout] 54 | |     d_max: Option<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     #[structopt(short = "v", long)]
[INFO] [stdout] 60 | |     value: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     #[structopt(long)]
[INFO] [stdout] 64 | |     d_max: Option<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | /     #[structopt(short = "f", long = "from")]
[INFO] [stdout] 70 | |     /// HLower value of the range
[INFO] [stdout] 71 | |     lo: String,
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | /     #[structopt(short = "t", long = "to")]
[INFO] [stdout] 73 | |     /// Higher value of the range
[INFO] [stdout] 74 | |     hi: String,
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:88:11
[INFO] [stdout]    |
[INFO] [stdout] 88 |   Value { value: String },
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/cliargs/mode.rs:91:10
[INFO] [stdout]    |
[INFO] [stdout] 91 |   List { file: PathBuf },
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/visitors.rs:284:63
[INFO] [stdout]     |
[INFO] [stdout] 284 |   pub fn new(center: V, distance: &'a D, d_max: Option<U>) -> VisitorNn<I, V, U, D> {
[INFO] [stdout]     |                                    --                         ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 284 |   pub fn new(center: V, distance: &'a D, d_max: Option<U>) -> VisitorNn<'a, I, V, U, D> {
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/visitors.rs:284:63
[INFO] [stdout]     |
[INFO] [stdout] 284 |   pub fn new(center: V, distance: &'a D, d_max: Option<U>) -> VisitorNn<I, V, U, D> {
[INFO] [stdout]     |                                    --                         ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 284 |   pub fn new(center: V, distance: &'a D, d_max: Option<U>) -> VisitorNn<'a, I, V, U, D> {
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bstree-file-readonly` (lib test) due to 10 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `bstree-file-readonly` (lib) due to 10 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "93c5b644aba4766575518d11952b7236a3f94bbd0a3c9545f3b2e4ef0171499b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c5b644aba4766575518d11952b7236a3f94bbd0a3c9545f3b2e4ef0171499b", kill_on_drop: false }`
[INFO] [stdout] 93c5b644aba4766575518d11952b7236a3f94bbd0a3c9545f3b2e4ef0171499b
