[INFO] cloning repository https://github.com/simonask/werk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonask/werk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonask%2Fwerk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonask%2Fwerk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e57ce24a87654c9cdd19b4136842d701a06fe3d0
[INFO] checking simonask/werk 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%2Fsimonask%2Fwerk" "/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/simonask/werk
[INFO] finished tweaking git repo https://github.com/simonask/werk
[INFO] tweaked toml for git repo https://github.com/simonask/werk written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/simonask/werk 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/simonask/werk 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 }`
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[INFO] [stdout] 8cf415b979ba0f858bdf145d0f632dbe294eed316b15b19850c8dac831d48688
[INFO] running `Command { std: "docker" "start" "-a" "8cf415b979ba0f858bdf145d0f632dbe294eed316b15b19850c8dac831d48688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cf415b979ba0f858bdf145d0f632dbe294eed316b15b19850c8dac831d48688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf415b979ba0f858bdf145d0f632dbe294eed316b15b19850c8dac831d48688", kill_on_drop: false }`
[INFO] [stdout] 8cf415b979ba0f858bdf145d0f632dbe294eed316b15b19850c8dac831d48688
[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] b0b7d97a9c87af67b05aa2368b7c8cc9e9e3a64de083f33934e2ee8935f78589
[INFO] running `Command { std: "docker" "start" "-a" "b0b7d97a9c87af67b05aa2368b7c8cc9e9e3a64de083f33934e2ee8935f78589", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `hash_is_semantic`
[INFO] [stdout]   --> werk-util/semantic_hash.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub(crate) use hash_is_semantic;
[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: `hash_is_semantic`
[INFO] [stdout]   --> werk-util/semantic_hash.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub(crate) use hash_is_semantic;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> werk-util/diagnostic.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> werk-util/diagnostic.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> werk-util/diagnostic.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> werk-util/diagnostic.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking idna_adapter v1.2.0
[INFO] [stderr]     Checking werk-parser v0.1.0 (/opt/rustwide/workdir/werk-parser)
[INFO] [stderr]     Checking werk-fs v0.1.0 (/opt/rustwide/workdir/werk-fs)
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] error: this type will no longer be must used: Result<absolute::Absolute<P>, Infallible>
[INFO] [stdout]    --> werk-fs/absolute.rs:101:51
[INFO] [stdout]     |
[INFO] [stdout] 101 |       fn normalize(self) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  ___________________________________________________^
[INFO] [stdout] 102 | |         Ok(self)
[INFO] [stdout] 103 | |     }
[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<absolute::Absolute<P>, Infallible>
[INFO] [stdout]    --> werk-fs/absolute.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         Ok(self)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&absolute::Absolute<P>, Infallible>
[INFO] [stdout]    --> werk-fs/absolute.rs:114:62
[INFO] [stdout]     |
[INFO] [stdout] 114 |       fn normalize(self) -> Result<&'a Absolute<P>, Self::Err> {
[INFO] [stdout]     |  ______________________________________________________________^
[INFO] [stdout] 115 | |         Ok(self)
[INFO] [stdout] 116 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&absolute::Absolute<P>, Infallible>
[INFO] [stdout]    --> werk-fs/absolute.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Ok(self)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> werk-fs/path.rs:260:22
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn ancestors(&self) -> Ancestors {
[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] 260 |     pub fn ancestors(&self) -> Ancestors<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> werk-fs/path.rs:404:23
[INFO] [stdout]     |
[INFO] [stdout] 404 |     pub fn components(&self) -> Components {
[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] 404 |     pub fn components(&self) -> Components<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> werk-fs/path.rs:436:22
[INFO] [stdout]     |
[INFO] [stdout] 436 |     pub fn normalize(&self) -> Result<Cow<Absolute<Self>>, PathError> {
[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] 436 |     pub fn normalize(&self) -> Result<Cow<'_, Absolute<Self>>, PathError> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::path::PathBuf, Infallible>
[INFO] [stdout]   --> werk-fs/traits.rs:38:65
[INFO] [stdout]    |
[INFO] [stdout] 38 |       fn join(&self, other: T) -> Result<Self::Joined, Self::Err> {
[INFO] [stdout]    |  _________________________________________________________________^
[INFO] [stdout] 39 | |         Ok(std::path::Path::join(self, other))
[INFO] [stdout] 40 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::path::PathBuf, Infallible>
[INFO] [stdout]   --> werk-fs/traits.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         Ok(std::path::Path::join(self, other))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `werk-fs` (lib test) due to 6 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<absolute::Absolute<P>, Infallible>
[INFO] [stdout]    --> werk-fs/absolute.rs:101:51
[INFO] [stdout]     |
[INFO] [stdout] 101 |       fn normalize(self) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  ___________________________________________________^
[INFO] [stdout] 102 | |         Ok(self)
[INFO] [stdout] 103 | |     }
[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<absolute::Absolute<P>, Infallible>
[INFO] [stdout]    --> werk-fs/absolute.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         Ok(self)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&absolute::Absolute<P>, Infallible>
[INFO] [stdout]    --> werk-fs/absolute.rs:114:62
[INFO] [stdout]     |
[INFO] [stdout] 114 |       fn normalize(self) -> Result<&'a Absolute<P>, Self::Err> {
[INFO] [stdout]     |  ______________________________________________________________^
[INFO] [stdout] 115 | |         Ok(self)
[INFO] [stdout] 116 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&absolute::Absolute<P>, Infallible>
[INFO] [stdout]    --> werk-fs/absolute.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Ok(self)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> werk-fs/path.rs:260:22
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn ancestors(&self) -> Ancestors {
[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] 260 |     pub fn ancestors(&self) -> Ancestors<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> werk-fs/path.rs:404:23
[INFO] [stdout]     |
[INFO] [stdout] 404 |     pub fn components(&self) -> Components {
[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] 404 |     pub fn components(&self) -> Components<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> werk-fs/path.rs:436:22
[INFO] [stdout]     |
[INFO] [stdout] 436 |     pub fn normalize(&self) -> Result<Cow<Absolute<Self>>, PathError> {
[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] 436 |     pub fn normalize(&self) -> Result<Cow<'_, Absolute<Self>>, PathError> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::path::PathBuf, Infallible>
[INFO] [stdout]   --> werk-fs/traits.rs:38:65
[INFO] [stdout]    |
[INFO] [stdout] 38 |       fn join(&self, other: T) -> Result<Self::Joined, Self::Err> {
[INFO] [stdout]    |  _________________________________________________________________^
[INFO] [stdout] 39 | |         Ok(std::path::Path::join(self, other))
[INFO] [stdout] 40 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::path::PathBuf, Infallible>
[INFO] [stdout]   --> werk-fs/traits.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         Ok(std::path::Path::join(self, other))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `werk-fs` (lib) due to 6 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b0b7d97a9c87af67b05aa2368b7c8cc9e9e3a64de083f33934e2ee8935f78589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b7d97a9c87af67b05aa2368b7c8cc9e9e3a64de083f33934e2ee8935f78589", kill_on_drop: false }`
[INFO] [stdout] b0b7d97a9c87af67b05aa2368b7c8cc9e9e3a64de083f33934e2ee8935f78589
