[INFO] cloning repository https://github.com/paranoidnas/system
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paranoidnas/system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparanoidnas%2Fsystem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparanoidnas%2Fsystem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85353b44666efefc60ebb51446b2614faf17b2a6
[INFO] checking paranoidnas/system 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%2Fparanoidnas%2Fsystem" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/paranoidnas/system
[INFO] finished tweaking git repo https://github.com/paranoidnas/system
[INFO] tweaked toml for git repo https://github.com/paranoidnas/system written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/paranoidnas/system 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/paranoidnas/system 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] dabeb09d01e240436b1324186acc78b56187929f448fde5e01418b51b6dbac4f
[INFO] running `Command { std: "docker" "start" "-a" "dabeb09d01e240436b1324186acc78b56187929f448fde5e01418b51b6dbac4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dabeb09d01e240436b1324186acc78b56187929f448fde5e01418b51b6dbac4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabeb09d01e240436b1324186acc78b56187929f448fde5e01418b51b6dbac4f", kill_on_drop: false }`
[INFO] [stdout] dabeb09d01e240436b1324186acc78b56187929f448fde5e01418b51b6dbac4f
[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] 3c330bb80134a79630836653915dbe4931768ecbf36c80a7a201897b9ea17cb5
[INFO] running `Command { std: "docker" "start" "-a" "3c330bb80134a79630836653915dbe4931768ecbf36c80a7a201897b9ea17cb5", kill_on_drop: false }`
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[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]    --> libblkcapt/src/core/restic.rs:373:5
[INFO] [stdout]     |
[INFO] [stdout] 369 | struct SnapshotsOutputRecord {
[INFO] [stdout]     |        --------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 373 |     parent: Option<ResticId>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_drop_set` is never used
[INFO] [stdout]   --> libblkcapt/src/core/retention.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl<'a, T: Snapshot> RetentionEvaluation<'a, T> {
[INFO] [stdout]    | ------------------------------------------------ method in this implementation
[INFO] [stdout] 69 |     fn into_drop_set(self) -> HashSet<DateTime<Utc>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn datasets(&self) -> impl Iterator<Item = EntityPath2<BtrfsDatasetEntity, BtrfsPoolEntity>> {
[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] 119 |     pub fn datasets(&self) -> impl Iterator<Item = EntityPath2<'_, BtrfsDatasetEntity, BtrfsPoolEntity>> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:129:20
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn dataset(&self, id: EntityId) -> Option<EntityPath2<BtrfsDatasetEntity, BtrfsPoolEntity>> {
[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] 129 |     pub fn dataset(&self, id: EntityId) -> Option<EntityPath2<'_, BtrfsDatasetEntity, BtrfsPoolEntity>> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:133:23
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn containers(&self) -> impl Iterator<Item = EntityPath2<BtrfsContainerEntity, BtrfsPoolEntity>> {
[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] 133 |     pub fn containers(&self) -> impl Iterator<Item = EntityPath2<'_, BtrfsContainerEntity, BtrfsPoolEntity>> {
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:143:22
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn container(&self, id: EntityId) -> Option<EntityPath2<BtrfsContainerEntity, BtrfsPoolEntity>> {
[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] 143 |     pub fn container(&self, id: EntityId) -> Option<EntityPath2<'_, BtrfsContainerEntity, BtrfsPoolEntity>> {
[INFO] [stdout]     |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn any_container(&self, id: EntityId) -> Option<AnyContainer> {
[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] 147 |     pub fn any_container(&self, id: EntityId) -> Option<AnyContainer<'_>> {
[INFO] [stdout]     |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<FsPathBuf, Infallible>
[INFO] [stdout]   --> libblkcapt/src/sys/fs.rs:58:53
[INFO] [stdout]    |
[INFO] [stdout] 58 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 59 | |         Ok(FsPathBuf::from(s))
[INFO] [stdout] 60 | |     }
[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: std::result::Result<FsPathBuf, Infallible>
[INFO] [stdout]   --> libblkcapt/src/sys/fs.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Ok(FsPathBuf::from(s))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libblkcapt` (lib) due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]    --> libblkcapt/src/core/restic.rs:373:5
[INFO] [stdout]     |
[INFO] [stdout] 369 | struct SnapshotsOutputRecord {
[INFO] [stdout]     |        --------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 373 |     parent: Option<ResticId>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_drop_set` is never used
[INFO] [stdout]   --> libblkcapt/src/core/retention.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl<'a, T: Snapshot> RetentionEvaluation<'a, T> {
[INFO] [stdout]    | ------------------------------------------------ method in this implementation
[INFO] [stdout] 69 |     fn into_drop_set(self) -> HashSet<DateTime<Utc>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn datasets(&self) -> impl Iterator<Item = EntityPath2<BtrfsDatasetEntity, BtrfsPoolEntity>> {
[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] 119 |     pub fn datasets(&self) -> impl Iterator<Item = EntityPath2<'_, BtrfsDatasetEntity, BtrfsPoolEntity>> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:129:20
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn dataset(&self, id: EntityId) -> Option<EntityPath2<BtrfsDatasetEntity, BtrfsPoolEntity>> {
[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] 129 |     pub fn dataset(&self, id: EntityId) -> Option<EntityPath2<'_, BtrfsDatasetEntity, BtrfsPoolEntity>> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:133:23
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn containers(&self) -> impl Iterator<Item = EntityPath2<BtrfsContainerEntity, BtrfsPoolEntity>> {
[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] 133 |     pub fn containers(&self) -> impl Iterator<Item = EntityPath2<'_, BtrfsContainerEntity, BtrfsPoolEntity>> {
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:143:22
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn container(&self, id: EntityId) -> Option<EntityPath2<BtrfsContainerEntity, BtrfsPoolEntity>> {
[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] 143 |     pub fn container(&self, id: EntityId) -> Option<EntityPath2<'_, BtrfsContainerEntity, BtrfsPoolEntity>> {
[INFO] [stdout]     |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libblkcapt/src/model/mod.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn any_container(&self, id: EntityId) -> Option<AnyContainer> {
[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] 147 |     pub fn any_container(&self, id: EntityId) -> Option<AnyContainer<'_>> {
[INFO] [stdout]     |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sys::fs::FsPathBuf, Infallible>
[INFO] [stdout]   --> libblkcapt/src/sys/fs.rs:58:53
[INFO] [stdout]    |
[INFO] [stdout] 58 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 59 | |         Ok(FsPathBuf::from(s))
[INFO] [stdout] 60 | |     }
[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: std::result::Result<sys::fs::FsPathBuf, Infallible>
[INFO] [stdout]   --> libblkcapt/src/sys/fs.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Ok(FsPathBuf::from(s))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libblkcapt` (lib test) due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3c330bb80134a79630836653915dbe4931768ecbf36c80a7a201897b9ea17cb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c330bb80134a79630836653915dbe4931768ecbf36c80a7a201897b9ea17cb5", kill_on_drop: false }`
[INFO] [stdout] 3c330bb80134a79630836653915dbe4931768ecbf36c80a7a201897b9ea17cb5
