[INFO] fetching crate sample-std 0.2.1...
[INFO] checking sample-std-0.2.1 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] extracting crate sample-std 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate sample-std 0.2.1
[INFO] finished tweaking crates.io crate sample-std 0.2.1
[INFO] tweaked toml for crates.io crate sample-std 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sample-std 0.2.1 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "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" "+82310651b93a594a3fd69015e1562186a080d94c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_regex v0.15.1 (available: v0.18.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded casey v0.4.2
[INFO] [stderr]   Downloaded rand_regex v0.15.1
[INFO] [stderr]   Downloaded sample-std v0.2.1
[INFO] [stderr]   Downloaded sample-test v0.2.1
[INFO] [stderr]   Downloaded sample-test-macros v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 677eedc8352b0cedaad06a76a0f6aff9c5189d84e55c7b75a536fff6d2e3927a
[INFO] running `Command { std: "docker" "start" "-a" "677eedc8352b0cedaad06a76a0f6aff9c5189d84e55c7b75a536fff6d2e3927a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "677eedc8352b0cedaad06a76a0f6aff9c5189d84e55c7b75a536fff6d2e3927a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "677eedc8352b0cedaad06a76a0f6aff9c5189d84e55c7b75a536fff6d2e3927a", kill_on_drop: false }`
[INFO] [stdout] 677eedc8352b0cedaad06a76a0f6aff9c5189d84e55c7b75a536fff6d2e3927a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cac41e819fd5d7698a0298df80311845b49db517e5ea9428ef5da4efbcc3b4f9
[INFO] running `Command { std: "docker" "start" "-a" "cac41e819fd5d7698a0298df80311845b49db517e5ea9428ef5da4efbcc3b4f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_regex v0.15.1
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]    Compiling casey v0.4.2
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking sample-std v0.2.1
[INFO] [stderr]     Checking sample-std v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:269:15
[INFO] [stdout]     |
[INFO] [stdout] 269 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] 269 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:298:15
[INFO] [stdout]     |
[INFO] [stdout] 298 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] 298 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:386:15
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] 386 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 391 | sample_tuple!(A, B);
[INFO] [stdout]     | ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 392 | sample_tuple!(A, B, C);
[INFO] [stdout]     | ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 393 | sample_tuple!(A, B, C, D);
[INFO] [stdout]     | ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 394 | sample_tuple!(A, B, C, D, E);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 395 | sample_tuple!(A, B, C, D, E, F);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 396 | sample_tuple!(A, B, C, D, E, F, G);
[INFO] [stdout]     | ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 397 | sample_tuple!(A, B, C, D, E, F, G, H);
[INFO] [stdout]     | ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:430:15
[INFO] [stdout]     |
[INFO] [stdout] 430 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] 430 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sample-test-macros v0.2.1
[INFO] [stderr]     Checking sample-test v0.2.1
[INFO] [stdout] error[E0277]: the trait bound `Box<dyn sample_std::Sample<Output = Tree>>: sample_test::Sample` is not satisfied
[INFO] [stdout]    --> tests/recurse.rs:131:1
[INFO] [stdout]     |
[INFO] [stdout] 131 | #[sample_test]
[INFO] [stdout]     | ^^^^^^^^^^^^^^ the trait `sample_test::Sample` is not implemented for `Box<dyn sample_std::Sample<Output = Tree>>`
[INFO] [stdout]     |
[INFO] [stdout] note: there are multiple different versions of crate `sample_std` in the dependency graph
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/sample-std-0.2.1/src/lib.rs:159:1
[INFO] [stdout]     |
[INFO] [stdout] 159 |   pub trait Sample {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^ this is the required trait
[INFO] [stdout]     |
[INFO] [stdout]    ::: tests/recurse.rs:5:5
[INFO] [stdout]     |
[INFO] [stdout] 5   |   use sample_std::{
[INFO] [stdout]     |       ---------- one version of crate `sample_std` used here, as a direct dependency of the current crate
[INFO] [stdout] ...
[INFO] [stdout] 9   |   use sample_test::sample_test;
[INFO] [stdout]     |       ----------- one version of crate `sample_std` used here, as a dependency of crate `sample_test`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/recursive.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   |   pub trait Recursion {
[INFO] [stdout]     |   ------------------- this is the found trait
[INFO] [stdout]    --> /rustc/82310651b93a594a3fd69015e1562186a080d94c/library/alloc/src/boxed.rs:231:1
[INFO] [stdout]    ::: /rustc/82310651b93a594a3fd69015e1562186a080d94c/library/alloc/src/boxed.rs:234:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: this type doesn't implement the required trait
[INFO] [stdout]     = help: you can use `cargo tree` to explore your dependency tree
[INFO] [stdout]     = note: required for `(Box<dyn sample_std::Sample<Output = Tree>>,)` to implement `sample_test::Sample`
[INFO] [stdout]     = note: this error originates in the attribute macro `sample_test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `RecursiveSampler<JsonSampler>: sample_test::Sample` is not satisfied
[INFO] [stdout]    --> tests/recurse.rs:142:1
[INFO] [stdout]     |
[INFO] [stdout] 142 | #[sample_test]
[INFO] [stdout]     | ^^^^^^^^^^^^^^ the trait `sample_test::Sample` is not implemented for `RecursiveSampler<JsonSampler>`
[INFO] [stdout]     |
[INFO] [stdout] note: there are multiple different versions of crate `sample_std` in the dependency graph
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/sample-std-0.2.1/src/lib.rs:159:1
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub trait Sample {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^ this is the required trait
[INFO] [stdout]     |
[INFO] [stdout]    ::: tests/recurse.rs:5:5
[INFO] [stdout]     |
[INFO] [stdout] 5   | use sample_std::{
[INFO] [stdout]     |     ---------- one version of crate `sample_std` used here, as a direct dependency of the current crate
[INFO] [stdout] ...
[INFO] [stdout] 9   | use sample_test::sample_test;
[INFO] [stdout]     |     ----------- one version of crate `sample_std` used here, as a dependency of crate `sample_test`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/recursive.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   | pub trait Recursion {
[INFO] [stdout]     | ------------------- this is the found trait
[INFO] [stdout] ...
[INFO] [stdout] 14  | pub struct RecursiveSampler<G> {
[INFO] [stdout]     | ------------------------------ this type doesn't implement the required trait
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/sample-std-0.2.1/src/recursive.rs:14:1
[INFO] [stdout]     |
[INFO] [stdout] 14  | pub struct RecursiveSampler<G> {
[INFO] [stdout]     | ------------------------------ this type implements the required trait
[INFO] [stdout]     = note: two types coming from two different versions of the same crate are different types even if they look the same
[INFO] [stdout]     = help: you can use `cargo tree` to explore your dependency tree
[INFO] [stdout]     = note: required for `(RecursiveSampler<JsonSampler>,)` to implement `sample_test::Sample`
[INFO] [stdout]     = note: this error originates in the attribute macro `sample_test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sample-std` (test "recurse") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:269:15
[INFO] [stdout]     |
[INFO] [stdout] 269 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] 269 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:298:15
[INFO] [stdout]     |
[INFO] [stdout] 298 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] 298 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:386:15
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] 386 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 391 | sample_tuple!(A, B);
[INFO] [stdout]     | ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 392 | sample_tuple!(A, B, C);
[INFO] [stdout]     | ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 393 | sample_tuple!(A, B, C, D);
[INFO] [stdout]     | ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 394 | sample_tuple!(A, B, C, D, E);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 395 | sample_tuple!(A, B, C, D, E, F);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 396 | sample_tuple!(A, B, C, D, E, F, G);
[INFO] [stdout]     | ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:367:15
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stdout]     |               ^^^^^                      -------------------- the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 397 | sample_tuple!(A, B, C, D, E, F, G, H);
[INFO] [stdout]     | ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `sample_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:430:15
[INFO] [stdout]     |
[INFO] [stdout] 430 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] 430 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cac41e819fd5d7698a0298df80311845b49db517e5ea9428ef5da4efbcc3b4f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac41e819fd5d7698a0298df80311845b49db517e5ea9428ef5da4efbcc3b4f9", kill_on_drop: false }`
[INFO] [stdout] cac41e819fd5d7698a0298df80311845b49db517e5ea9428ef5da4efbcc3b4f9
