[INFO] fetching crate fmerge 0.1.6...
[INFO] checking fmerge-0.1.6 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate fmerge 0.1.6 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate fmerge 0.1.6 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate fmerge 0.1.6
[INFO] finished tweaking crates.io crate fmerge 0.1.6
[INFO] tweaked toml for crates.io crate fmerge 0.1.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate fmerge 0.1.6 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nias v0.5.0
[INFO] [stderr]   Downloaded rusty-hook v0.11.2
[INFO] [stderr]   Downloaded is-terminal v0.4.4
[INFO] [stderr]   Downloaded clap-markdown v0.1.3
[INFO] [stderr]   Downloaded clap_lex v0.3.2
[INFO] [stderr]   Downloaded clap_complete v4.1.4
[INFO] [stderr]   Downloaded async-trait v0.1.51
[INFO] [stderr]   Downloaded clap_mangen v0.2.9
[INFO] [stderr]   Downloaded fancy-regex v0.11.0
[INFO] [stderr]   Downloaded clap v4.1.8
[INFO] [stderr]   Downloaded regex v1.7.3
[INFO] [stderr]   Downloaded syn v1.0.75
[INFO] [stderr]   Downloaded fsio v0.1.3
[INFO] [stderr]   Downloaded envmnt v0.8.4
[INFO] [stderr]   Downloaded ci_info v0.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bf3e513d042453fa976249f97b49f1e042816f3c9b80cd84a64ef1dd44ad05f
[INFO] running `Command { std: "docker" "start" "-a" "2bf3e513d042453fa976249f97b49f1e042816f3c9b80cd84a64ef1dd44ad05f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bf3e513d042453fa976249f97b49f1e042816f3c9b80cd84a64ef1dd44ad05f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf3e513d042453fa976249f97b49f1e042816f3c9b80cd84a64ef1dd44ad05f", kill_on_drop: false }`
[INFO] [stdout] 2bf3e513d042453fa976249f97b49f1e042816f3c9b80cd84a64ef1dd44ad05f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b12f1511d5575363b5dd7f90fb881c3c165a438634c267bf45afbd01bfcaaee1
[INFO] running `Command { std: "docker" "start" "-a" "b12f1511d5575363b5dd7f90fb881c3c165a438634c267bf45afbd01bfcaaee1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]    Compiling fsio v0.1.3
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling rustix v0.36.8
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling nias v0.5.0
[INFO] [stderr]     Checking clap_lex v0.3.2
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking roff v0.2.1
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking envmnt v0.8.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking ci_info v0.10.2
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking regex v1.7.3
[INFO] [stderr]     Checking is-terminal v0.4.4
[INFO] [stderr]     Checking clap v4.1.8
[INFO] [stderr]     Checking fancy-regex v0.11.0
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking clap_complete v4.1.4
[INFO] [stderr]     Checking clap_mangen v0.2.9
[INFO] [stderr]     Checking clap-markdown v0.1.3
[INFO] [stderr]    Compiling rusty-hook v0.11.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]     Checking fmerge v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/args.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         result::Result,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/args.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         result::Result,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "b12f1511d5575363b5dd7f90fb881c3c165a438634c267bf45afbd01bfcaaee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b12f1511d5575363b5dd7f90fb881c3c165a438634c267bf45afbd01bfcaaee1", kill_on_drop: false }`
[INFO] [stdout] b12f1511d5575363b5dd7f90fb881c3c165a438634c267bf45afbd01bfcaaee1