[INFO] fetching crate ex-cli 1.3.0...
[INFO] checking ex-cli-1.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate ex-cli 1.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ex-cli 1.3.0 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 ex-cli 1.3.0
[INFO] finished tweaking crates.io crate ex-cli 1.3.0
[INFO] tweaked toml for crates.io crate ex-cli 1.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate ex-cli 1.3.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indexmap v2.1.0
[INFO] [stderr]   Downloaded clap_complete v4.4.4
[INFO] [stderr]   Downloaded hashbrown v0.14.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b9ef6dbe2c75236341e53f5278215b5bc089c65bcd6d8fc7b433e82bbc65ecf5
[INFO] running `Command { std: "docker" "start" "-a" "b9ef6dbe2c75236341e53f5278215b5bc089c65bcd6d8fc7b433e82bbc65ecf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9ef6dbe2c75236341e53f5278215b5bc089c65bcd6d8fc7b433e82bbc65ecf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ef6dbe2c75236341e53f5278215b5bc089c65bcd6d8fc7b433e82bbc65ecf5", kill_on_drop: false }`
[INFO] [stdout] b9ef6dbe2c75236341e53f5278215b5bc089c65bcd6d8fc7b433e82bbc65ecf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] de207ef56c3110f6bb8355d867c4a6a3e72764e62edad356e86adae4b8a5ca60
[INFO] running `Command { std: "docker" "start" "-a" "de207ef56c3110f6bb8355d867c4a6a3e72764e62edad356e86adae4b8a5ca60", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking anstyle-parse v0.2.2
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking termcolor v1.4.0
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking path-clean v1.0.1
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking clap_builder v4.4.8
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking sysinfo v0.29.10
[INFO] [stderr]     Checking clap v4.4.8
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking clap_complete v4.4.4
[INFO] [stderr]     Checking multimap v0.9.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking ex-cli v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Flags` is imported redundantly
[INFO] [stdout]    --> src/finder.rs:495:9
[INFO] [stdout]     |
[INFO] [stdout] 495 |     use crate::system::Flags;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 496 |
[INFO] [stdout] 497 |     use super::*;
[INFO] [stdout]     |         -------- the item `Flags` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]    --> src/printer.rs:517:9
[INFO] [stdout]     |
[INFO] [stdout] 517 |     use std::path::PathBuf;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 525 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathBuf` is already imported 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 7.28s
[INFO] running `Command { std: "docker" "inspect" "de207ef56c3110f6bb8355d867c4a6a3e72764e62edad356e86adae4b8a5ca60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de207ef56c3110f6bb8355d867c4a6a3e72764e62edad356e86adae4b8a5ca60", kill_on_drop: false }`
[INFO] [stdout] de207ef56c3110f6bb8355d867c4a6a3e72764e62edad356e86adae4b8a5ca60
[INFO] checking ex-cli-1.3.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate ex-cli 1.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate ex-cli 1.3.0 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 ex-cli 1.3.0
[INFO] finished tweaking crates.io crate ex-cli 1.3.0
[INFO] tweaked toml for crates.io crate ex-cli 1.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate ex-cli 1.3.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ac6c48521ac7a0b30ff74061396f6c44ab483cc07cee4b72589c628fc942c9a3
[INFO] running `Command { std: "docker" "start" "-a" "ac6c48521ac7a0b30ff74061396f6c44ab483cc07cee4b72589c628fc942c9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac6c48521ac7a0b30ff74061396f6c44ab483cc07cee4b72589c628fc942c9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6c48521ac7a0b30ff74061396f6c44ab483cc07cee4b72589c628fc942c9a3", kill_on_drop: false }`
[INFO] [stdout] ac6c48521ac7a0b30ff74061396f6c44ab483cc07cee4b72589c628fc942c9a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f79f1233c028e63a5f646bf838e98779d9a4160b49c7f8429d78638eaa8f311c
[INFO] running `Command { std: "docker" "start" "-a" "f79f1233c028e63a5f646bf838e98779d9a4160b49c7f8429d78638eaa8f311c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking anstyle-parse v0.2.2
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking path-clean v1.0.1
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking termcolor v1.4.0
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking clap_builder v4.4.8
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking clap v4.4.8
[INFO] [stderr]     Checking clap_complete v4.4.4
[INFO] [stderr]     Checking sysinfo v0.29.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking multimap v0.9.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking ex-cli v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Flags` is imported redundantly
[INFO] [stdout]    --> src/finder.rs:495:9
[INFO] [stdout]     |
[INFO] [stdout] 495 |     use crate::system::Flags;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 496 |
[INFO] [stdout] 497 |     use super::*;
[INFO] [stdout]     |         -------- the item `Flags` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]    --> src/printer.rs:517:9
[INFO] [stdout]     |
[INFO] [stdout] 517 |     use std::path::PathBuf;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 525 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathBuf` is already imported 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 9.11s
[INFO] running `Command { std: "docker" "inspect" "f79f1233c028e63a5f646bf838e98779d9a4160b49c7f8429d78638eaa8f311c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79f1233c028e63a5f646bf838e98779d9a4160b49c7f8429d78638eaa8f311c", kill_on_drop: false }`
[INFO] [stdout] f79f1233c028e63a5f646bf838e98779d9a4160b49c7f8429d78638eaa8f311c