[INFO] fetching crate marks 0.1.0...
[INFO] checking marks-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate marks 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate marks 0.1.0
[INFO] finished tweaking crates.io crate marks 0.1.0
[INFO] tweaked toml for crates.io crate marks 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate marks 0.1.0 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 marks 0.1.0 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] d1f117a75c1b9fce2f042c601cd4a0874d06cf80a5b7710774868bc851032321
[INFO] running `Command { std: "docker" "start" "-a" "d1f117a75c1b9fce2f042c601cd4a0874d06cf80a5b7710774868bc851032321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1f117a75c1b9fce2f042c601cd4a0874d06cf80a5b7710774868bc851032321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f117a75c1b9fce2f042c601cd4a0874d06cf80a5b7710774868bc851032321", kill_on_drop: false }`
[INFO] [stdout] d1f117a75c1b9fce2f042c601cd4a0874d06cf80a5b7710774868bc851032321
[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] 6ed50eee9d1ff196f3c62426e41780f17a37010800d51943869eb56aa028222a
[INFO] running `Command { std: "docker" "start" "-a" "6ed50eee9d1ff196f3c62426e41780f17a37010800d51943869eb56aa028222a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking marks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `iterator_fold_self` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_fold_self)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iterator_fold_self` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_fold_self)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/marks.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/marks.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (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/result.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(args: &Args) -> Header {
[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] 23 |     pub fn new(args: &Args) -> Header<'_> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/result.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(args: &Args) -> Header {
[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] 23 |     pub fn new(args: &Args) -> Header<'_> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// The query.
[INFO] [stdout] 13 | |     ///
[INFO] [stdout] 14 | |     /// An example query may look like this:
[INFO] [stdout] 15 | |     ///    '"this" is a `(test|trial)` query -badword'
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     #[structopt(short, long)]
[INFO] [stdout] 22 | |     pub query: 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<String, Infallible>
[INFO] [stdout]   --> src/args.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     /// Where to search for.
[INFO] [stdout] 25 | |     #[structopt(short, long)]
[INFO] [stdout] 26 | |     pub path: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     /// List of extensions for org files.
[INFO] [stdout] 29 | |     #[structopt(short, long, default_value="org")]
[INFO] [stdout] 30 | |     pub org_extension: Vec<String>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// List of extensions for org files.
[INFO] [stdout] 33 | |     #[structopt(short, long, default_value="md")]
[INFO] [stdout] 34 | |     pub md_extension: Vec<String>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     /// A seperator to insert between headers while outputting.
[INFO] [stdout] 61 | |     #[structopt(long, default_value="/")]
[INFO] [stdout] 62 | |     pub header_seperator: String,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/marks.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(args: &'a Args) -> Marks {
[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] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(args: &'a Args) -> Marks<'a> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/marks.rs:59:24
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn search_file(&self, file: &DirEntry) -> Option<Vec<SearchResult>> {
[INFO] [stdout]    |                        ^^^^^ the lifetime is elided here     ^^^^^^^^^^^^ the same lifetime is hidden 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] 59 |     pub fn search_file(&self, file: &DirEntry) -> Option<Vec<SearchResult<'_>>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// The query.
[INFO] [stdout] 13 | |     ///
[INFO] [stdout] 14 | |     /// An example query may look like this:
[INFO] [stdout] 15 | |     ///    '"this" is a `(test|trial)` query -badword'
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     #[structopt(short, long)]
[INFO] [stdout] 22 | |     pub query: 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<String, Infallible>
[INFO] [stdout]   --> src/args.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     /// Where to search for.
[INFO] [stdout] 25 | |     #[structopt(short, long)]
[INFO] [stdout] 26 | |     pub path: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     /// List of extensions for org files.
[INFO] [stdout] 29 | |     #[structopt(short, long, default_value="org")]
[INFO] [stdout] 30 | |     pub org_extension: Vec<String>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// List of extensions for org files.
[INFO] [stdout] 33 | |     #[structopt(short, long, default_value="md")]
[INFO] [stdout] 34 | |     pub md_extension: Vec<String>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     /// A seperator to insert between headers while outputting.
[INFO] [stdout] 61 | |     #[structopt(long, default_value="/")]
[INFO] [stdout] 62 | |     pub header_seperator: String,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/marks.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(args: &'a Args) -> Marks {
[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] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(args: &'a Args) -> Marks<'a> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/marks.rs:59:24
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn search_file(&self, file: &DirEntry) -> Option<Vec<SearchResult>> {
[INFO] [stdout]    |                        ^^^^^ the lifetime is elided here     ^^^^^^^^^^^^ the same lifetime is hidden 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] 59 |     pub fn search_file(&self, file: &DirEntry) -> Option<Vec<SearchResult<'_>>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `marks` (lib test) due to 5 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `marks` (lib) due to 5 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6ed50eee9d1ff196f3c62426e41780f17a37010800d51943869eb56aa028222a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed50eee9d1ff196f3c62426e41780f17a37010800d51943869eb56aa028222a", kill_on_drop: false }`
[INFO] [stdout] 6ed50eee9d1ff196f3c62426e41780f17a37010800d51943869eb56aa028222a
