[INFO] fetching crate im-rc 15.1.0...
[INFO] checking im-rc-15.1.0 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate im-rc 15.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate im-rc 15.1.0 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate im-rc 15.1.0
[INFO] finished tweaking crates.io crate im-rc 15.1.0
[INFO] tweaked toml for crates.io crate im-rc 15.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded refpool v0.4.3
[INFO] [stderr]   Downloaded proptest-derive v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc95cebf27c0f974b006e978de8d36e8bd27422c5877cbda017c2dad7c75371c
[INFO] running `Command { std: "docker" "start" "-a" "fc95cebf27c0f974b006e978de8d36e8bd27422c5877cbda017c2dad7c75371c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc95cebf27c0f974b006e978de8d36e8bd27422c5877cbda017c2dad7c75371c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc95cebf27c0f974b006e978de8d36e8bd27422c5877cbda017c2dad7c75371c", kill_on_drop: false }`
[INFO] [stdout] fc95cebf27c0f974b006e978de8d36e8bd27422c5877cbda017c2dad7c75371c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fc68b8a25e6beaa7647ffb6e8ffc3ff318f22df4cd2ffcd102d382b97d39466
[INFO] running `Command { std: "docker" "start" "-a" "9fc68b8a25e6beaa7647ffb6e8ffc3ff318f22df4cd2ffcd102d382b97d39466", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling im-rc v15.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking metrohash v1.0.6
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]    --> src/lib.rs:341:41
[INFO] [stdout]     |
[INFO] [stdout] 341 | #![cfg_attr(has_specialisation, feature(specialization))]
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]     = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proptest-derive v0.3.0
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]    --> src/lib.rs:341:41
[INFO] [stdout]     |
[INFO] [stdout] 341 | #![cfg_attr(has_specialisation, feature(specialization))]
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]     = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:141:34
[INFO] [stdout]     |
[INFO] [stdout] 141 |             s.serialize_element(i.deref())?;
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `A` does not implement `Deref`, so calling `deref` on `&A` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:167:32
[INFO] [stdout]     |
[INFO] [stdout] 167 |             s.serialize_entry(k.deref(), v.deref())?;
[INFO] [stdout]     |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `K` does not implement `Deref`, so calling `deref` on `&K` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:167:43
[INFO] [stdout]     |
[INFO] [stdout] 167 |             s.serialize_entry(k.deref(), v.deref())?;
[INFO] [stdout]     |                                           ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `V` does not implement `Deref`, so calling `deref` on `&V` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:201:32
[INFO] [stdout]     |
[INFO] [stdout] 201 |             s.serialize_entry(k.deref(), v.deref())?;
[INFO] [stdout]     |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `K` does not implement `Deref`, so calling `deref` on `&K` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:201:43
[INFO] [stdout]     |
[INFO] [stdout] 201 |             s.serialize_entry(k.deref(), v.deref())?;
[INFO] [stdout]     |                                           ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `V` does not implement `Deref`, so calling `deref` on `&V` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:227:34
[INFO] [stdout]     |
[INFO] [stdout] 227 |             s.serialize_element(i.deref())?;
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `A` does not implement `Deref`, so calling `deref` on `&A` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:251:34
[INFO] [stdout]     |
[INFO] [stdout] 251 |             s.serialize_element(i.deref())?;
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `A` does not implement `Deref`, so calling `deref` on `&A` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.84s
[INFO] running `Command { std: "docker" "inspect" "9fc68b8a25e6beaa7647ffb6e8ffc3ff318f22df4cd2ffcd102d382b97d39466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fc68b8a25e6beaa7647ffb6e8ffc3ff318f22df4cd2ffcd102d382b97d39466", kill_on_drop: false }`
[INFO] [stdout] 9fc68b8a25e6beaa7647ffb6e8ffc3ff318f22df4cd2ffcd102d382b97d39466
[INFO] checking im-rc-15.1.0 against try#7622c0f807a4e13c4db886a1681bf343795692df+rustflags=-Dnon_local_definitions for pr-120393
[INFO] extracting crate im-rc 15.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate im-rc 15.1.0 on toolchain 7622c0f807a4e13c4db886a1681bf343795692df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate im-rc 15.1.0
[INFO] finished tweaking crates.io crate im-rc 15.1.0
[INFO] tweaked toml for crates.io crate im-rc 15.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9a3dfaec986b3bfadd1def36cb8c08399247e58eb4d4e09a54c9869609e1199
[INFO] running `Command { std: "docker" "start" "-a" "a9a3dfaec986b3bfadd1def36cb8c08399247e58eb4d4e09a54c9869609e1199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9a3dfaec986b3bfadd1def36cb8c08399247e58eb4d4e09a54c9869609e1199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a3dfaec986b3bfadd1def36cb8c08399247e58eb4d4e09a54c9869609e1199", kill_on_drop: false }`
[INFO] [stdout] a9a3dfaec986b3bfadd1def36cb8c08399247e58eb4d4e09a54c9869609e1199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dnon_local_definitions" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 117fc95decc0633ec74b0b9cc40f6add8a283ed50ad9799649a634b7cafa406a
[INFO] running `Command { std: "docker" "start" "-a" "117fc95decc0633ec74b0b9cc40f6add8a283ed50ad9799649a634b7cafa406a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling im-rc v15.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking metrohash v1.0.6
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]    --> src/lib.rs:341:41
[INFO] [stdout]     |
[INFO] [stdout] 341 | #![cfg_attr(has_specialisation, feature(specialization))]
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]     = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proptest-derive v0.3.0
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]    --> src/lib.rs:341:41
[INFO] [stdout]     |
[INFO] [stdout] 341 | #![cfg_attr(has_specialisation, feature(specialization))]
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]     = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:141:34
[INFO] [stdout]     |
[INFO] [stdout] 141 |             s.serialize_element(i.deref())?;
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `A` does not implement `Deref`, so calling `deref` on `&A` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:167:32
[INFO] [stdout]     |
[INFO] [stdout] 167 |             s.serialize_entry(k.deref(), v.deref())?;
[INFO] [stdout]     |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `K` does not implement `Deref`, so calling `deref` on `&K` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:167:43
[INFO] [stdout]     |
[INFO] [stdout] 167 |             s.serialize_entry(k.deref(), v.deref())?;
[INFO] [stdout]     |                                           ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `V` does not implement `Deref`, so calling `deref` on `&V` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:201:32
[INFO] [stdout]     |
[INFO] [stdout] 201 |             s.serialize_entry(k.deref(), v.deref())?;
[INFO] [stdout]     |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `K` does not implement `Deref`, so calling `deref` on `&K` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:201:43
[INFO] [stdout]     |
[INFO] [stdout] 201 |             s.serialize_entry(k.deref(), v.deref())?;
[INFO] [stdout]     |                                           ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `V` does not implement `Deref`, so calling `deref` on `&V` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:227:34
[INFO] [stdout]     |
[INFO] [stdout] 227 |             s.serialize_element(i.deref())?;
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `A` does not implement `Deref`, so calling `deref` on `&A` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ser.rs:251:34
[INFO] [stdout]     |
[INFO] [stdout] 251 |             s.serialize_element(i.deref())?;
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `A` does not implement `Deref`, so calling `deref` on `&A` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/tests/hashset.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Arbitrary, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_ARBITRARY_FOR_Action`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: requested on the command line with `-D non-local-definitions`
[INFO] [stdout]    = note: this error originates in the derive macro `Arbitrary` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/tests/hashset.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Arbitrary)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_ARBITRARY_FOR_Actions`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Arbitrary` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/tests/ordset.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Arbitrary, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_ARBITRARY_FOR_Action`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Arbitrary` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/tests/ordset.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(Arbitrary)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_ARBITRARY_FOR_Actions`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Arbitrary` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/tests/vector.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Arbitrary, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_ARBITRARY_FOR_Action`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Arbitrary` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/tests/vector.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[derive(Arbitrary)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_ARBITRARY_FOR_Actions`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Arbitrary` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `im-rc` (lib test) due to 7 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "117fc95decc0633ec74b0b9cc40f6add8a283ed50ad9799649a634b7cafa406a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "117fc95decc0633ec74b0b9cc40f6add8a283ed50ad9799649a634b7cafa406a", kill_on_drop: false }`
[INFO] [stdout] 117fc95decc0633ec74b0b9cc40f6add8a283ed50ad9799649a634b7cafa406a
