[INFO] fetching crate stdext 0.3.3...
[INFO] testing stdext-0.3.3 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate stdext 0.3.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate stdext 0.3.3
[INFO] finished tweaking crates.io crate stdext 0.3.3
[INFO] tweaked toml for crates.io crate stdext 0.3.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stdext 0.3.3 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e25c52f7964329f5e507970c712ba6137248e350e390d2e113c8f2e75147daa
[INFO] running `Command { std: "docker" "start" "-a" "9e25c52f7964329f5e507970c712ba6137248e350e390d2e113c8f2e75147daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e25c52f7964329f5e507970c712ba6137248e350e390d2e113c8f2e75147daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e25c52f7964329f5e507970c712ba6137248e350e390d2e113c8f2e75147daa", kill_on_drop: false }`
[INFO] [stdout] 9e25c52f7964329f5e507970c712ba6137248e350e390d2e113c8f2e75147daa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45929a59b7bb35bbcfd58084677e462f772231f8985fb7c2518aea1f564a417f
[INFO] running `Command { std: "docker" "start" "-a" "45929a59b7bb35bbcfd58084677e462f772231f8985fb7c2518aea1f564a417f", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdext v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/duration.rs:246:16
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self + Self::from_days(days)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `DurationExt::from_days(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(duration_constructors)]` to the crate attributes to enable `Duration::from_days`
[INFO] [stdout]    --> src/lib.rs:132:1
[INFO] [stdout]     |
[INFO] [stdout] 132 + #![feature(duration_constructors)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/mutex.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn force_lock(&self) -> MutexGuard<T>;
[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] 25 |     fn force_lock(&self) -> MutexGuard<'_, T>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/mutex.rs:29:19
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn force_lock(&self) -> MutexGuard<T> {
[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] 29 |     fn force_lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn force_read(&self) -> RwLockReadGuard<T>;
[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] 25 |     fn force_read(&self) -> RwLockReadGuard<'_, T>;
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn force_write(&self) -> RwLockWriteGuard<T>;
[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] 48 |     fn force_write(&self) -> RwLockWriteGuard<'_, T>;
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn force_read(&self) -> RwLockReadGuard<T> {
[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] 52 |     fn force_read(&self) -> RwLockReadGuard<'_, T> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn force_write(&self) -> RwLockWriteGuard<T> {
[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] 56 |     fn force_write(&self) -> RwLockWriteGuard<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "45929a59b7bb35bbcfd58084677e462f772231f8985fb7c2518aea1f564a417f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45929a59b7bb35bbcfd58084677e462f772231f8985fb7c2518aea1f564a417f", kill_on_drop: false }`
[INFO] [stdout] 45929a59b7bb35bbcfd58084677e462f772231f8985fb7c2518aea1f564a417f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25a5fedf60a34cf56470f2602f6c63fbb04614eaf6c315973be25017b3c24368
[INFO] running `Command { std: "docker" "start" "-a" "25a5fedf60a34cf56470f2602f6c63fbb04614eaf6c315973be25017b3c24368", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdext v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/duration.rs:246:16
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self + Self::from_days(days)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `DurationExt::from_days(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(duration_constructors)]` to the crate attributes to enable `Duration::from_days`
[INFO] [stdout]    --> src/lib.rs:132:1
[INFO] [stdout]     |
[INFO] [stdout] 132 + #![feature(duration_constructors)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/mutex.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn force_lock(&self) -> MutexGuard<T>;
[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] 25 |     fn force_lock(&self) -> MutexGuard<'_, T>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/mutex.rs:29:19
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn force_lock(&self) -> MutexGuard<T> {
[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] 29 |     fn force_lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn force_read(&self) -> RwLockReadGuard<T>;
[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] 25 |     fn force_read(&self) -> RwLockReadGuard<'_, T>;
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn force_write(&self) -> RwLockWriteGuard<T>;
[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] 48 |     fn force_write(&self) -> RwLockWriteGuard<'_, T>;
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn force_read(&self) -> RwLockReadGuard<T> {
[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] 52 |     fn force_read(&self) -> RwLockReadGuard<'_, T> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn force_write(&self) -> RwLockWriteGuard<T> {
[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] 56 |     fn force_write(&self) -> RwLockWriteGuard<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/duration.rs:246:16
[INFO] [stdout]     |
[INFO] [stdout] 246 |         self + Self::from_days(days)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `duration::DurationExt::from_days(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(duration_constructors)]` to the crate attributes to enable `std::time::Duration::from_days`
[INFO] [stdout]    --> src/lib.rs:132:1
[INFO] [stdout]     |
[INFO] [stdout] 132 + #![feature(duration_constructors)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/duration.rs:289:24
[INFO] [stdout]     |
[INFO] [stdout] 289 |             assert_eq!(Duration::from_days(days), Duration::from_secs(seconds));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `duration::DurationExt::from_days(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] help: add `#![feature(duration_constructors)]` to the crate attributes to enable `std::time::Duration::from_days`
[INFO] [stdout]    --> src/lib.rs:132:1
[INFO] [stdout]     |
[INFO] [stdout] 132 + #![feature(duration_constructors)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/mutex.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn force_lock(&self) -> MutexGuard<T>;
[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] 25 |     fn force_lock(&self) -> MutexGuard<'_, T>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/mutex.rs:29:19
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn force_lock(&self) -> MutexGuard<T> {
[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] 29 |     fn force_lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn force_read(&self) -> RwLockReadGuard<T>;
[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] 25 |     fn force_read(&self) -> RwLockReadGuard<'_, T>;
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn force_write(&self) -> RwLockWriteGuard<T>;
[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] 48 |     fn force_write(&self) -> RwLockWriteGuard<'_, T>;
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn force_read(&self) -> RwLockReadGuard<T> {
[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] 52 |     fn force_read(&self) -> RwLockReadGuard<'_, T> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync/rw_lock.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn force_write(&self) -> RwLockWriteGuard<T> {
[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] 56 |     fn force_write(&self) -> RwLockWriteGuard<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "25a5fedf60a34cf56470f2602f6c63fbb04614eaf6c315973be25017b3c24368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25a5fedf60a34cf56470f2602f6c63fbb04614eaf6c315973be25017b3c24368", kill_on_drop: false }`
[INFO] [stdout] 25a5fedf60a34cf56470f2602f6c63fbb04614eaf6c315973be25017b3c24368
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e545a653f02c06693716cbf42c0d60b5f9d5af4dc5c02c82cc5222369d922aff
[INFO] running `Command { std: "docker" "start" "-a" "e545a653f02c06693716cbf42c0d60b5f9d5af4dc5c02c82cc5222369d922aff", kill_on_drop: false }`
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/duration.rs:246:16
[INFO] [stderr]     |
[INFO] [stderr] 246 |         self + Self::from_days(days)
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `DurationExt::from_days(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] help: add `#![feature(duration_constructors)]` to the crate attributes to enable `Duration::from_days`
[INFO] [stderr]    --> src/lib.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 + #![feature(duration_constructors)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/sync/mutex.rs:25:19
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn force_lock(&self) -> MutexGuard<T>;
[INFO] [stderr]    |                   ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn force_lock(&self) -> MutexGuard<'_, T>;
[INFO] [stderr]    |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/sync/mutex.rs:29:19
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn force_lock(&self) -> MutexGuard<T> {
[INFO] [stderr]    |                   ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn force_lock(&self) -> MutexGuard<'_, T> {
[INFO] [stderr]    |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/sync/rw_lock.rs:25:19
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn force_read(&self) -> RwLockReadGuard<T>;
[INFO] [stdout] 
[INFO] [stderr]    |                   ^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] running 9 tests
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn force_read(&self) -> RwLockReadGuard<'_, T>;
[INFO] [stderr]    |                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/sync/rw_lock.rs:48:20
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn force_write(&self) -> RwLockWriteGuard<T>;
[INFO] [stderr]    |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn force_write(&self) -> RwLockWriteGuard<'_, T>;
[INFO] [stderr]    |                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/sync/rw_lock.rs:52:19
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn force_read(&self) -> RwLockReadGuard<T> {
[INFO] [stderr]    |                   ^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn force_read(&self) -> RwLockReadGuard<'_, T> {
[INFO] [stderr]    |                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/sync/rw_lock.rs:56:20
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn force_write(&self) -> RwLockWriteGuard<T> {
[INFO] [stderr]    |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn force_write(&self) -> RwLockWriteGuard<'_, T> {
[INFO] [stderr]    |                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: `stdext` (lib) generated 7 warnings (run `cargo fix --lib -p stdext` to apply 6 suggestions)
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/duration.rs:246:16
[INFO] [stderr]     |
[INFO] [stderr] 246 |         self + Self::from_days(days)
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `duration::DurationExt::from_days(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] help: add `#![feature(duration_constructors)]` to the crate attributes to enable `std::time::Duration::from_days`
[INFO] [stderr]    --> src/lib.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 + #![feature(duration_constructors)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/duration.rs:289:24
[INFO] [stderr]     |
[INFO] [stderr] 289 |             assert_eq!(Duration::from_days(days), Duration::from_secs(seconds));
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `duration::DurationExt::from_days(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] help: add `#![feature(duration_constructors)]` to the crate attributes to enable `std::time::Duration::from_days`
[INFO] [stderr]    --> src/lib.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 + #![feature(duration_constructors)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `stdext` (lib test) generated 8 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stdext-faf2d7883ec20652)
[INFO] [stderr]    Doc-tests stdext
[INFO] [stdout] test num::integer::tests::basic ... ok
[INFO] [stdout] test duration::tests::add_methods ... ok
[INFO] [stdout] test num::integer::tests::composite ... ok
[INFO] [stdout] test option::tests::combine_with ... ok
[INFO] [stdout] test option::tests::combine ... ok
[INFO] [stdout] test result::tests::combine ... ok
[INFO] [stdout] test duration::tests::as_methods ... ok
[INFO] [stdout] test duration::tests::from_methods ... ok
[INFO] [stdout] test result::tests::combine_with ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stdout] test src/duration.rs - duration::DurationExt::add_nanos (line 71) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::as_minutes (line 169) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::as_days (line 195) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::add_millis (line 99) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::from_hours (line 35) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::add_minutes (line 127) ... ok
[INFO] [stdout] test src/default.rs - default::default (line 10) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::add_micros (line 85) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::add_days (line 155) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::add_secs (line 113) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::add_hours (line 141) ... ok
[INFO] [stdout] test src/lib.rs - (line 119) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::from_days (line 53) ... ok
[INFO] [stdout] test src/lib.rs - (line 82) ... ok
[INFO] [stdout] test src/macros.rs - macros::compile_warning (line 9) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::as_hours (line 182) ... ok
[INFO] [stdout] test src/macros.rs - macros::return_ok (line 191) ... ok
[INFO] [stdout] test src/lib.rs - (line 97) ... ok
[INFO] [stdout] test src/macros.rs - macros::debug_name (line 82) ... ok
[INFO] [stdout] test src/duration.rs - duration::DurationExt::from_minutes (line 17) ... ok
[INFO] [stdout] test src/macros.rs - macros::return_some (line 236) ... ok
[INFO] [stdout] test src/num/float_convert.rs - num::float_convert::FloatConvert::checked_floor (line 28) ... ok
[INFO] [stdout] test src/macros.rs - macros::function_name (line 50) ... ok
[INFO] [stdout] test src/macros.rs - macros::try_match (line 115) ... ok
[INFO] [stdout] test src/num/float_convert.rs - num::float_convert::FloatConvert::checked_round (line 72) ... ok
[INFO] [stdout] test src/option.rs - option::OptionExt::combine (line 18) ... ok
[INFO] [stdout] test src/num/float_convert.rs - num::float_convert::FloatConvert::checked_ceil (line 50) ... ok
[INFO] [stdout] test src/result.rs - result::ResultExt::combine (line 16) ... ok
[INFO] [stdout] test src/macros.rs - macros::unwrap_match (line 149) ... ok
[INFO] [stdout] test src/option.rs - option::OptionExt::combine_with (line 43) ... ok
[INFO] [stdout] test src/sync/mutex.rs - sync::mutex::MutexExt::force_lock (line 16) ... ok
[INFO] [stdout] test src/result.rs - result::ResultExt::combine_with (line 39) ... ok
[INFO] [stdout] test src/sync/rw_lock.rs - sync::rw_lock::RwLockExt::force_read (line 16) ... ok
[INFO] [stdout] test src/str.rs - str::StrExt::splitn_exact (line 34) ... ok
[INFO] [stdout] test src/vec.rs - vec::VecExt::remove_item (line 52) ... ok
[INFO] [stdout] test src/sync/rw_lock.rs - sync::rw_lock::RwLockExt::force_write (line 34) ... ok
[INFO] [stdout] test src/macros.rs - macros::unwrap_match (line 163) ... ok
[INFO] [stdout] test src/vec.rs - vec::VecExt::resize_up_with (line 21) ... ok
[INFO] [stdout] test src/vec.rs - vec::VecExtClone::resize_up (line 85) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 40 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e545a653f02c06693716cbf42c0d60b5f9d5af4dc5c02c82cc5222369d922aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e545a653f02c06693716cbf42c0d60b5f9d5af4dc5c02c82cc5222369d922aff", kill_on_drop: false }`
[INFO] [stdout] e545a653f02c06693716cbf42c0d60b5f9d5af4dc5c02c82cc5222369d922aff
