[INFO] cloning repository https://github.com/f11snipe/rust-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/f11snipe/rust-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff11snipe%2Frust-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff11snipe%2Frust-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cb2ebdd926d64ea2d1eec554754c81ea7a8a873
[INFO] checking f11snipe/rust-examples against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff11snipe%2Frust-examples" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/f11snipe/rust-examples 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 git repo https://github.com/f11snipe/rust-examples
[INFO] finished tweaking git repo https://github.com/f11snipe/rust-examples
[INFO] tweaked toml for git repo https://github.com/f11snipe/rust-examples written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/f11snipe/rust-examples 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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "06d069754d9dcfae4638c8d2643ac808653d74b92249eb1ad8e0b28b0584f61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06d069754d9dcfae4638c8d2643ac808653d74b92249eb1ad8e0b28b0584f61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d069754d9dcfae4638c8d2643ac808653d74b92249eb1ad8e0b28b0584f61e", kill_on_drop: false }`
[INFO] [stdout] 06d069754d9dcfae4638c8d2643ac808653d74b92249eb1ad8e0b28b0584f61e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ccffeca438f6af4787ab88562442accd35d4f48a97a88518d00083de64052a32
[INFO] running `Command { std: "docker" "start" "-a" "ccffeca438f6af4787ab88562442accd35d4f48a97a88518d00083de64052a32", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.79
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[INFO] [stderr]    Compiling serde v1.0.197
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking bytes v1.5.0
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[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
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[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling openssl-sys v0.9.101
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[INFO] [stderr]     Checking regex-automata v0.4.6
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[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
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[INFO] [stderr]     Checking regex v1.10.3
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[INFO] [stderr]     Checking toml_edit v0.22.7
[INFO] [stderr]     Checking reqwest v0.11.26
[INFO] [stderr]     Checking toml v0.8.11
[INFO] [stderr]     Checking confy v0.6.1
[INFO] [stderr]     Checking rust-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rust_examples` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rust_examples::{self, watch};
[INFO] [stdout]   |                     ^^^^ the item `rust_examples` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rust_examples` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rust_examples::{self, watch};
[INFO] [stdout]   |                     ^^^^ the item `rust_examples` is already defined by prelude
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 54.64s
[INFO] running `Command { std: "docker" "inspect" "ccffeca438f6af4787ab88562442accd35d4f48a97a88518d00083de64052a32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccffeca438f6af4787ab88562442accd35d4f48a97a88518d00083de64052a32", kill_on_drop: false }`
[INFO] [stdout] ccffeca438f6af4787ab88562442accd35d4f48a97a88518d00083de64052a32
[INFO] checking f11snipe/rust-examples against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff11snipe%2Frust-examples" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/f11snipe/rust-examples 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 git repo https://github.com/f11snipe/rust-examples
[INFO] finished tweaking git repo https://github.com/f11snipe/rust-examples
[INFO] tweaked toml for git repo https://github.com/f11snipe/rust-examples written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/f11snipe/rust-examples 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] df6e7f0f1d4d5658e09033b5e97df1870001b0c6ca7db5dcae74d2e3d2bd11a4
[INFO] running `Command { std: "docker" "start" "-a" "df6e7f0f1d4d5658e09033b5e97df1870001b0c6ca7db5dcae74d2e3d2bd11a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df6e7f0f1d4d5658e09033b5e97df1870001b0c6ca7db5dcae74d2e3d2bd11a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df6e7f0f1d4d5658e09033b5e97df1870001b0c6ca7db5dcae74d2e3d2bd11a4", kill_on_drop: false }`
[INFO] [stdout] df6e7f0f1d4d5658e09033b5e97df1870001b0c6ca7db5dcae74d2e3d2bd11a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 549cd9b57d06cea4ffb99cd10958e85d6de590842dc5bfa8fb3b4d885ce33e4b
[INFO] running `Command { std: "docker" "start" "-a" "549cd9b57d06cea4ffb99cd10958e85d6de590842dc5bfa8fb3b4d885ce33e4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
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[INFO] [stderr]     Checking futures-core v0.3.30
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[INFO] [stderr]     Checking foreign-types-shared v0.1.1
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[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling openssl-sys v0.9.101
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[INFO] [stderr]    Compiling thiserror v1.0.58
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[INFO] [stderr]    Compiling serde_derive v1.0.197
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[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_yaml v0.9.32
[INFO] [stderr]     Checking toml_edit v0.22.7
[INFO] [stderr]     Checking reqwest v0.11.26
[INFO] [stderr]     Checking toml v0.8.11
[INFO] [stderr]     Checking confy v0.6.1
[INFO] [stderr]     Checking rust-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rust_examples` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rust_examples::{self, watch};
[INFO] [stdout]   |                     ^^^^ the item `rust_examples` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rust_examples` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rust_examples::{self, watch};
[INFO] [stdout]   |                     ^^^^ the item `rust_examples` is already defined by prelude
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 47.43s
[INFO] running `Command { std: "docker" "inspect" "549cd9b57d06cea4ffb99cd10958e85d6de590842dc5bfa8fb3b4d885ce33e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "549cd9b57d06cea4ffb99cd10958e85d6de590842dc5bfa8fb3b4d885ce33e4b", kill_on_drop: false }`
[INFO] [stdout] 549cd9b57d06cea4ffb99cd10958e85d6de590842dc5bfa8fb3b4d885ce33e4b