[INFO] fetching crate chimpanzee 0.2.3...
[INFO] checking chimpanzee-0.2.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate chimpanzee 0.2.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate chimpanzee 0.2.3 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 chimpanzee 0.2.3
[INFO] finished tweaking crates.io crate chimpanzee 0.2.3
[INFO] tweaked toml for crates.io crate chimpanzee 0.2.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate chimpanzee 0.2.3 already has a lockfile, it will not be regenerated
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded walkdir v2.3.3
[INFO] [stderr]   Downloaded strum_macros v0.25.2
[INFO] [stderr]   Downloaded strum v0.25.0
[INFO] [stderr]   Downloaded ciborium-io v0.2.1
[INFO] [stderr]   Downloaded ciborium-ll v0.2.1
[INFO] [stderr]   Downloaded num-derive v0.4.1
[INFO] [stderr]   Downloaded ciborium v0.2.1
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded rayon-core v1.11.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.8
[INFO] [stderr]   Downloaded rayon v1.7.0
[INFO] [stderr]   Downloaded rustix v0.38.10
[INFO] [stderr]   Downloaded regex v1.9.4
[INFO] [stderr]   Downloaded regex-automata v0.3.7
[INFO] [stderr]   Downloaded syn v2.0.29
[INFO] [stderr]   Downloaded memchr v2.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4eb947f99b24f0db13cf64f06fca7aa1d9c76922c6925073665e29cdc99e2eea
[INFO] running `Command { std: "docker" "start" "-a" "4eb947f99b24f0db13cf64f06fca7aa1d9c76922c6925073665e29cdc99e2eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4eb947f99b24f0db13cf64f06fca7aa1d9c76922c6925073665e29cdc99e2eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eb947f99b24f0db13cf64f06fca7aa1d9c76922c6925073665e29cdc99e2eea", kill_on_drop: false }`
[INFO] [stdout] 4eb947f99b24f0db13cf64f06fca7aa1d9c76922c6925073665e29cdc99e2eea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1f510f5813e4a26b71a5f15d62c4f534edd0d8865a4a7a4e86f4efdc6ac80dbb
[INFO] running `Command { std: "docker" "start" "-a" "1f510f5813e4a26b71a5f15d62c4f534edd0d8865a4a7a4e86f4efdc6ac80dbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking anstyle v1.0.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]    Compiling rustix v0.38.10
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking regex-automata v0.3.7
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking regex v1.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]    Compiling num-derive v0.4.1
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking chimpanzee v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Rc` is imported redundantly
[INFO] [stdout]    --> src/compiler/mod.rs:647:9
[INFO] [stdout]     |
[INFO] [stdout] 647 |     use std::rc::Rc;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 648 |
[INFO] [stdout] 649 |     use super::*;
[INFO] [stdout]     |         -------- the item `Rc` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.20s
[INFO] running `Command { std: "docker" "inspect" "1f510f5813e4a26b71a5f15d62c4f534edd0d8865a4a7a4e86f4efdc6ac80dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f510f5813e4a26b71a5f15d62c4f534edd0d8865a4a7a4e86f4efdc6ac80dbb", kill_on_drop: false }`
[INFO] [stdout] 1f510f5813e4a26b71a5f15d62c4f534edd0d8865a4a7a4e86f4efdc6ac80dbb
[INFO] checking chimpanzee-0.2.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate chimpanzee 0.2.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate chimpanzee 0.2.3 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 chimpanzee 0.2.3
[INFO] finished tweaking crates.io crate chimpanzee 0.2.3
[INFO] tweaked toml for crates.io crate chimpanzee 0.2.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate chimpanzee 0.2.3 already has a lockfile, it will not be regenerated
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4bdbbb5e5583d8ff40202582e4a5ed11b68df3ff56c9fe868b61b1e790efcab6
[INFO] running `Command { std: "docker" "start" "-a" "4bdbbb5e5583d8ff40202582e4a5ed11b68df3ff56c9fe868b61b1e790efcab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bdbbb5e5583d8ff40202582e4a5ed11b68df3ff56c9fe868b61b1e790efcab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bdbbb5e5583d8ff40202582e4a5ed11b68df3ff56c9fe868b61b1e790efcab6", kill_on_drop: false }`
[INFO] [stdout] 4bdbbb5e5583d8ff40202582e4a5ed11b68df3ff56c9fe868b61b1e790efcab6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5fb90c57a01a3a632f588a432d9c81dfb551b3ee82aa636c0ca2f768bdc47e69
[INFO] running `Command { std: "docker" "start" "-a" "5fb90c57a01a3a632f588a432d9c81dfb551b3ee82aa636c0ca2f768bdc47e69", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling rustix v0.38.10
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.2
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking regex-automata v0.3.7
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking regex v1.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]    Compiling num-derive v0.4.1
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking chimpanzee v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Rc` is imported redundantly
[INFO] [stdout]    --> src/compiler/mod.rs:647:9
[INFO] [stdout]     |
[INFO] [stdout] 647 |     use std::rc::Rc;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 648 |
[INFO] [stdout] 649 |     use super::*;
[INFO] [stdout]     |         -------- the item `Rc` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.25s
[INFO] running `Command { std: "docker" "inspect" "5fb90c57a01a3a632f588a432d9c81dfb551b3ee82aa636c0ca2f768bdc47e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fb90c57a01a3a632f588a432d9c81dfb551b3ee82aa636c0ca2f768bdc47e69", kill_on_drop: false }`
[INFO] [stdout] 5fb90c57a01a3a632f588a432d9c81dfb551b3ee82aa636c0ca2f768bdc47e69