[INFO] fetching crate shredder 0.2.0...
[INFO] testing shredder-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate shredder 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate shredder 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shredder 0.2.0
[INFO] finished tweaking crates.io crate shredder 0.2.0
[INFO] tweaked toml for crates.io crate shredder 0.2.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dynqueue v0.3.0
[INFO] [stderr]   Downloaded shredder_derive v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 927b57090e601b48183b677022a5e3809c28a33188f3c253fd1ee4e330902337
[INFO] running `Command { std: "docker" "start" "-a" "927b57090e601b48183b677022a5e3809c28a33188f3c253fd1ee4e330902337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "927b57090e601b48183b677022a5e3809c28a33188f3c253fd1ee4e330902337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "927b57090e601b48183b677022a5e3809c28a33188f3c253fd1ee4e330902337", kill_on_drop: false }`
[INFO] [stdout] 927b57090e601b48183b677022a5e3809c28a33188f3c253fd1ee4e330902337
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d42f871e2f4f7fb51c91bc154bb75fb4ce7a68cba8d872a44ad58e3373f4f7e8
[INFO] running `Command { std: "docker" "start" "-a" "d42f871e2f4f7fb51c91bc154bb75fb4ce7a68cba8d872a44ad58e3373f4f7e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling arc-swap v1.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling dynqueue v0.3.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling shredder_derive v0.2.0
[INFO] [stderr]    Compiling rental v0.5.6
[INFO] [stderr]    Compiling shredder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]   --> src/wrappers.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / rental! {
[INFO] [stdout] 10 | |     mod gc_refcell_internals {
[INFO] [stdout] 11 | |         use crate::{Scan, GcGuard};
[INFO] [stdout] 12 | |         use std::cell::{Ref, RefCell, RefMut};
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     }
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]    = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]    = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]    --> src/wrappers.rs:130:1
[INFO] [stdout]     |
[INFO] [stdout] 130 | / rental! {
[INFO] [stdout] 131 | |     mod gc_mutex_internals {
[INFO] [stdout] 132 | |         use std::sync::{Mutex, MutexGuard};
[INFO] [stdout] 133 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 142 | |     }
[INFO] [stdout] 143 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]    --> src/wrappers.rs:217:1
[INFO] [stdout]     |
[INFO] [stdout] 217 | / rental! {
[INFO] [stdout] 218 | |     mod gc_rwlock_internals {
[INFO] [stdout] 219 | |         use std::sync::{RwLock, MutexGuard, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stdout] 220 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 236 | |     }
[INFO] [stdout] 237 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.77s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.6, shredder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "d42f871e2f4f7fb51c91bc154bb75fb4ce7a68cba8d872a44ad58e3373f4f7e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d42f871e2f4f7fb51c91bc154bb75fb4ce7a68cba8d872a44ad58e3373f4f7e8", kill_on_drop: false }`
[INFO] [stdout] d42f871e2f4f7fb51c91bc154bb75fb4ce7a68cba8d872a44ad58e3373f4f7e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2e2330501fe8e6cd233985de015b6132a07132a819817109cff4671eae0c08c
[INFO] running `Command { std: "docker" "start" "-a" "a2e2330501fe8e6cd233985de015b6132a07132a819817109cff4671eae0c08c", kill_on_drop: false }`
[INFO] [stderr]    Compiling trybuild v1.0.59
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]   --> src/wrappers.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / rental! {
[INFO] [stdout] 10 | |     mod gc_refcell_internals {
[INFO] [stdout] 11 | |         use crate::{Scan, GcGuard};
[INFO] [stdout] 12 | |         use std::cell::{Ref, RefCell, RefMut};
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     }
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]    = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]    = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]    --> src/wrappers.rs:130:1
[INFO] [stdout]     |
[INFO] [stdout] 130 | / rental! {
[INFO] [stdout] 131 | |     mod gc_mutex_internals {
[INFO] [stdout] 132 | |         use std::sync::{Mutex, MutexGuard};
[INFO] [stdout] 133 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 142 | |     }
[INFO] [stdout] 143 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]    --> src/wrappers.rs:217:1
[INFO] [stdout]     |
[INFO] [stdout] 217 | / rental! {
[INFO] [stdout] 218 | |     mod gc_rwlock_internals {
[INFO] [stdout] 219 | |         use std::sync::{RwLock, MutexGuard, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stdout] 220 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 236 | |     }
[INFO] [stdout] 237 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling shredder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `derive_trybuild`
[INFO] [stdout]  --> tests/derive_macro.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn derive_trybuild() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]   --> src/wrappers.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / rental! {
[INFO] [stdout] 10 | |     mod gc_refcell_internals {
[INFO] [stdout] 11 | |         use crate::{Scan, GcGuard};
[INFO] [stdout] 12 | |         use std::cell::{Ref, RefCell, RefMut};
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     }
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]    = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]    = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]    --> src/wrappers.rs:130:1
[INFO] [stdout]     |
[INFO] [stdout] 130 | / rental! {
[INFO] [stdout] 131 | |     mod gc_mutex_internals {
[INFO] [stdout] 132 | |         use std::sync::{Mutex, MutexGuard};
[INFO] [stdout] 133 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 142 | |     }
[INFO] [stdout] 143 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]    --> src/wrappers.rs:217:1
[INFO] [stdout]     |
[INFO] [stdout] 217 | / rental! {
[INFO] [stdout] 218 | |     mod gc_rwlock_internals {
[INFO] [stdout] 219 | |         use std::sync::{RwLock, MutexGuard, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stdout] 220 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 236 | |     }
[INFO] [stdout] 237 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.79s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.6, shredder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "a2e2330501fe8e6cd233985de015b6132a07132a819817109cff4671eae0c08c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e2330501fe8e6cd233985de015b6132a07132a819817109cff4671eae0c08c", kill_on_drop: false }`
[INFO] [stdout] a2e2330501fe8e6cd233985de015b6132a07132a819817109cff4671eae0c08c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 997279c9ef2e7b564484722eedcceacc092f226bb47152fc19dd5519cc1d9fd3
[INFO] running `Command { std: "docker" "start" "-a" "997279c9ef2e7b564484722eedcceacc092f226bb47152fc19dd5519cc1d9fd3", kill_on_drop: false }`
[INFO] [stderr] warning: using `procedural-masquerade` crate
[INFO] [stderr]   --> src/wrappers.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / rental! {
[INFO] [stderr] 10 | |     mod gc_refcell_internals {
[INFO] [stderr] 11 | |         use crate::{Scan, GcGuard};
[INFO] [stderr] 12 | |         use std::cell::{Ref, RefCell, RefMut};
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |     }
[INFO] [stderr] 28 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stderr]    = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stderr]    = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: using `procedural-masquerade` crate
[INFO] [stderr]    --> src/wrappers.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | / rental! {
[INFO] [stderr] 131 | |     mod gc_mutex_internals {
[INFO] [stderr] 132 | |         use std::sync::{Mutex, MutexGuard};
[INFO] [stderr] 133 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 142 | |     }
[INFO] [stderr] 143 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stderr]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stderr]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: using `procedural-masquerade` crate
[INFO] [stderr]    --> src/wrappers.rs:217:1
[INFO] [stderr]     |
[INFO] [stderr] 217 | / rental! {
[INFO] [stderr] 218 | |     mod gc_rwlock_internals {
[INFO] [stderr] 219 | |         use std::sync::{RwLock, MutexGuard, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stderr] 220 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 236 | |     }
[INFO] [stderr] 237 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stderr]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stderr]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `shredder` (lib) generated 3 warnings
[INFO] [stderr] warning: `shredder` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: function is never used: `derive_trybuild`
[INFO] [stderr]  --> tests/derive_macro.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn derive_trybuild() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `shredder` (test "derive_macro") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.6, shredder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shredder-e04370c7e849d41b)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test concurrency::lockout::test::exclusive_warrant_works_by_itself ... ok
[INFO] [stdout] test concurrency::lockout::test::multiple_warrants ... ok
[INFO] [stdout] test concurrency::lockout::test::warrant_prevents_exclusive_warrant ... ok
[INFO] [stdout] test smart_ptr::gc::test::dyn_gc_ptr ... ok
[INFO] [stdout] test std_impls::test::cell_scans ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_Instant ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_f32 ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_String ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_i128 ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_f64 ... ok
[INFO] [stdout] test std_impls::test::unpoisoned_rwlock_scans ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_i16 ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_i32 ... ok
[INFO] [stdout] test std_impls::test::vec_scans_correctly ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_i64 ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_i8 ... ok
[INFO] [stdout] test std_impls::test::unpoisoned_mutex_scans ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_isize ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_u128 ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_u16 ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_u32 ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_u64 ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_usize ... ok
[INFO] [stdout] test std_impls::value_types::test::finalize_no_panic_u8 ... ok
[INFO] [stdout] test std_impls::test::poisoned_rwlock_scans ... ok
[INFO] [stdout] test std_impls::test::poisoned_mutex_scans ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/coerce.rs (/opt/rustwide/target/debug/deps/coerce-f80c0fad84dc0fc7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/derive_macro.rs (/opt/rustwide/target/debug/deps/derive_macro-efb070266e6c7d6b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/downcast.rs (/opt/rustwide/target/debug/deps/downcast-26415ac39f3af64f)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test cant_downcast_not_sub_test ... ok
[INFO] [stdout] test can_downcast_deref_gc_sub_test ... ok
[INFO] [stdout] test cant_downcast_deref_gc_not_sub_test ... ok
[INFO] [stdout] test can_downcast_sub_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/finalize.rs (/opt/rustwide/target/debug/deps/finalize-37510774290fc94b)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test finalize_derive_works ... ok
[INFO] [stdout] test finalize_fields_derive_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-48914668ee59aacc)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test atomic_compare_and_exchange_test ... ok
[INFO] [stdout] test alloc_u32_gc ... ok
[INFO] [stdout] test alloc_directed_graph_node_gc ... ok
[INFO] [stdout] test atomic_compare_and_swap_test ... ok
[INFO] [stdout] test atomic_cycle ... ok
[INFO] [stdout] test clone_directed_graph_chain_gc ... ok
[INFO] [stdout] test finalizers_run ... ok
[INFO] [stdout] test no_drop_functional ... ok
[INFO] [stdout] test scan_skip_problem ... ok
[INFO] [stdout] test drop_run ... ok
[INFO] [stderr]      Running tests/readme.rs (/opt/rustwide/target/debug/deps/readme-7634c14b6dafe2b7)
[INFO] [stdout] test clone_directed_graph_node_gc ... ok
[INFO] [stdout] test simple_atomic_cleanup ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test _main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/stress.rs (/opt/rustwide/target/debug/deps/stress-046190dbb3978ebf)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test stress_test has been running for over 60 seconds
[INFO] [stdout] test stress_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 96.99s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/unsized.rs (/opt/rustwide/target/debug/deps/unsized-020af7c5cd37f58c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test from_box ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shredder
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/lib.rs - Scan (line 234) ... ok
[INFO] [stdout] test src/scan.rs - scan::Scan (line 28) ... ok
[INFO] [stdout] test src/marker/gc_deref.rs - marker::gc_deref::GcDeref (line 12) ... ok
[INFO] [stdout] test src/lib.rs - Finalize (line 285) ... ok
[INFO] [stdout] test src/lib.rs - Scan (line 256) ... ok
[INFO] [stdout] test src/lib.rs - Scan (line 222) ... ok
[INFO] [stdout] test src/scan.rs - scan::Scan (line 39) ... ok
[INFO] [stdout] test src/scan.rs - scan::Scan (line 71) ... ok
[INFO] [stdout] test src/scan.rs - scan::Scan (line 51) ... ok
[INFO] [stdout] test src/marker/gc_drop.rs - marker::gc_drop::GcDrop (line 26) ... ok
[INFO] [stdout] test src/marker/gc_drop.rs - marker::gc_drop::GcDrop (line 14) ... ok
[INFO] [stdout] test src/lib.rs - Finalize (line 274) ... ok
[INFO] [stdout] test src/lib.rs - run_with_gc_cleanup (line 191) ... ok
[INFO] [stdout] test src/lib.rs - synchronize_destructors (line 172) ... ok
[INFO] [stdout] test src/lib.rs - number_of_active_handles (line 113) ... ok
[INFO] [stdout] test src/lib.rs - collect (line 158) ... ok
[INFO] [stdout] test src/lib.rs - set_gc_trigger_percent (line 135) ... ok
[INFO] [stdout] test src/lib.rs - number_of_tracked_allocations (line 99) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "997279c9ef2e7b564484722eedcceacc092f226bb47152fc19dd5519cc1d9fd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997279c9ef2e7b564484722eedcceacc092f226bb47152fc19dd5519cc1d9fd3", kill_on_drop: false }`
[INFO] [stdout] 997279c9ef2e7b564484722eedcceacc092f226bb47152fc19dd5519cc1d9fd3