[INFO] fetching crate im-lists 0.6.0... [INFO] checking im-lists-0.6.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate im-lists 0.6.0 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate im-lists 0.6.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate im-lists 0.6.0 [INFO] finished tweaking crates.io crate im-lists 0.6.0 [INFO] tweaked toml for crates.io crate im-lists 0.6.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 98 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bitmaps v2.1.0 (latest: v3.2.1) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding criterion v0.3.6 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (latest: v0.5.0) [INFO] [stderr] Adding half v1.8.3 (latest: v2.4.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding linux-raw-sys v0.4.13 (latest: v0.6.4) [INFO] [stderr] Adding quick-error v1.2.3 (latest: v2.0.1) [INFO] [stderr] Adding sized-chunks v0.6.5 (latest: v0.7.0) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 491577adffcab522694c92c3688c8a1277cb561a04c2ac12651f0196fda8e974 [INFO] running `Command { std: "docker" "start" "-a" "491577adffcab522694c92c3688c8a1277cb561a04c2ac12651f0196fda8e974", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "491577adffcab522694c92c3688c8a1277cb561a04c2ac12651f0196fda8e974", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "491577adffcab522694c92c3688c8a1277cb561a04c2ac12651f0196fda8e974", kill_on_drop: false }` [INFO] [stdout] 491577adffcab522694c92c3688c8a1277cb561a04c2ac12651f0196fda8e974 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a2b2339deb3fe396fff17df1b970cf9e48459f5286e06962c197ce0ed99a8f46 [INFO] running `Command { std: "docker" "start" "-a" "a2b2339deb3fe396fff17df1b970cf9e48459f5286e06962c197ce0ed99a8f46", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling rustix v0.38.32 [INFO] [stderr] Checking linux-raw-sys v0.4.13 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rand_xoshiro v0.6.0 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking unarray v0.1.4 [INFO] [stderr] Checking im-lists v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/list.rs:13:26 [INFO] [stdout] | [INFO] [stdout] 13 | use std::{cmp::Ordering, iter::FromIterator, marker::PhantomData}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/unrolled.rs:7:26 [INFO] [stdout] | [INFO] [stdout] 7 | use std::iter::{FlatMap, FromIterator, Rev}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking bit-set v0.5.3 [INFO] [stderr] Checking im-rc v15.1.0 [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking tempfile v3.10.1 [INFO] [stderr] Checking rusty-fork v0.3.0 [INFO] [stderr] Checking proptest v1.4.0 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/list.rs:13:26 [INFO] [stdout] | [INFO] [stdout] 13 | use std::{cmp::Ordering, iter::FromIterator, marker::PhantomData}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/unrolled.rs:7:26 [INFO] [stdout] | [INFO] [stdout] 7 | use std::iter::{FlatMap, FromIterator, Rev}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.92s [INFO] running `Command { std: "docker" "inspect" "a2b2339deb3fe396fff17df1b970cf9e48459f5286e06962c197ce0ed99a8f46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2b2339deb3fe396fff17df1b970cf9e48459f5286e06962c197ce0ed99a8f46", kill_on_drop: false }` [INFO] [stdout] a2b2339deb3fe396fff17df1b970cf9e48459f5286e06962c197ce0ed99a8f46 [INFO] checking im-lists-0.6.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate im-lists 0.6.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate im-lists 0.6.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate im-lists 0.6.0 [INFO] finished tweaking crates.io crate im-lists 0.6.0 [INFO] tweaked toml for crates.io crate im-lists 0.6.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 98 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bitmaps v2.1.0 (latest: v3.2.1) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding criterion v0.3.6 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (latest: v0.5.0) [INFO] [stderr] Adding half v1.8.3 (latest: v2.4.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding linux-raw-sys v0.4.13 (latest: v0.6.4) [INFO] [stderr] Adding quick-error v1.2.3 (latest: v2.0.1) [INFO] [stderr] Adding sized-chunks v0.6.5 (latest: v0.7.0) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b916660ec8dad905f0c5b465544192af8fddf596da061b82f8e7d3447e72ef51 [INFO] running `Command { std: "docker" "start" "-a" "b916660ec8dad905f0c5b465544192af8fddf596da061b82f8e7d3447e72ef51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b916660ec8dad905f0c5b465544192af8fddf596da061b82f8e7d3447e72ef51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b916660ec8dad905f0c5b465544192af8fddf596da061b82f8e7d3447e72ef51", kill_on_drop: false }` [INFO] [stdout] b916660ec8dad905f0c5b465544192af8fddf596da061b82f8e7d3447e72ef51 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 633dbda08e4056864e90502503a08663782975ec626f85dcbf4cedb7da596479 [INFO] running `Command { std: "docker" "start" "-a" "633dbda08e4056864e90502503a08663782975ec626f85dcbf4cedb7da596479", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling rustix v0.38.32 [INFO] [stderr] Checking linux-raw-sys v0.4.13 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking rand_xoshiro v0.6.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking unarray v0.1.4 [INFO] [stderr] Checking im-lists v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/list.rs:13:26 [INFO] [stdout] | [INFO] [stdout] 13 | use std::{cmp::Ordering, iter::FromIterator, marker::PhantomData}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/unrolled.rs:7:26 [INFO] [stdout] | [INFO] [stdout] 7 | use std::iter::{FlatMap, FromIterator, Rev}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking bit-set v0.5.3 [INFO] [stderr] Checking im-rc v15.1.0 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking tempfile v3.10.1 [INFO] [stderr] Checking rusty-fork v0.3.0 [INFO] [stderr] Checking proptest v1.4.0 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/list.rs:13:26 [INFO] [stdout] | [INFO] [stdout] 13 | use std::{cmp::Ordering, iter::FromIterator, marker::PhantomData}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/unrolled.rs:7:26 [INFO] [stdout] | [INFO] [stdout] 7 | use std::iter::{FlatMap, FromIterator, Rev}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.82s [INFO] running `Command { std: "docker" "inspect" "633dbda08e4056864e90502503a08663782975ec626f85dcbf4cedb7da596479", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "633dbda08e4056864e90502503a08663782975ec626f85dcbf4cedb7da596479", kill_on_drop: false }` [INFO] [stdout] 633dbda08e4056864e90502503a08663782975ec626f85dcbf4cedb7da596479