[INFO] cloning repository https://github.com/SimonYen/ruto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SimonYen/ruto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonYen%2Fruto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonYen%2Fruto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72eda6410f6499b650017e5df6a2d5f3acf85f91
[INFO] checking SimonYen/ruto against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonYen%2Fruto" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SimonYen/ruto 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/SimonYen/ruto
[INFO] finished tweaking git repo https://github.com/SimonYen/ruto
[INFO] tweaked toml for git repo https://github.com/SimonYen/ruto written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SimonYen/ruto 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] 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] 4135f722a7c58e8dbd5a41263eceb6ea5a40f9b42ce1dfbbaa34dd34bd9d8bba
[INFO] running `Command { std: "docker" "start" "-a" "4135f722a7c58e8dbd5a41263eceb6ea5a40f9b42ce1dfbbaa34dd34bd9d8bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4135f722a7c58e8dbd5a41263eceb6ea5a40f9b42ce1dfbbaa34dd34bd9d8bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4135f722a7c58e8dbd5a41263eceb6ea5a40f9b42ce1dfbbaa34dd34bd9d8bba", kill_on_drop: false }`
[INFO] [stdout] 4135f722a7c58e8dbd5a41263eceb6ea5a40f9b42ce1dfbbaa34dd34bd9d8bba
[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] 22e17c79be4a31b3228e7e3def8998ecc65323a100332c16fa29534dbd4b5d5b
[INFO] running `Command { std: "docker" "start" "-a" "22e17c79be4a31b3228e7e3def8998ecc65323a100332c16fa29534dbd4b5d5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling ahash v0.8.7
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking iana-time-zone v0.1.59
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.11
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking chrono v0.4.33
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking time v0.3.31
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling darling_core v0.20.3
[INFO] [stderr]    Compiling enum-map-derive v0.17.0
[INFO] [stderr]     Checking enum-map v2.7.3
[INFO] [stderr]    Compiling darling_macro v0.20.3
[INFO] [stderr]    Compiling darling v0.20.3
[INFO] [stderr]    Compiling enumset_derive v0.8.1
[INFO] [stderr]     Checking enumset v1.1.3
[INFO] [stderr]     Checking cursive_core v0.3.7
[INFO] [stderr]     Checking cursive v0.20.0
[INFO] [stderr]     Checking rudo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `home` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use home;
[INFO] [stdout]   |     ^^^^ the item `home` 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 `home` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use home;
[INFO] [stdout]   |     ^^^^ the item `home` 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 14.63s
[INFO] running `Command { std: "docker" "inspect" "22e17c79be4a31b3228e7e3def8998ecc65323a100332c16fa29534dbd4b5d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e17c79be4a31b3228e7e3def8998ecc65323a100332c16fa29534dbd4b5d5b", kill_on_drop: false }`
[INFO] [stdout] 22e17c79be4a31b3228e7e3def8998ecc65323a100332c16fa29534dbd4b5d5b
[INFO] checking SimonYen/ruto against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonYen%2Fruto" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SimonYen/ruto 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/SimonYen/ruto
[INFO] finished tweaking git repo https://github.com/SimonYen/ruto
[INFO] tweaked toml for git repo https://github.com/SimonYen/ruto written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/SimonYen/ruto 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-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] 0b5eaf5dd291c5c72d2d80897378bdcc4e5ed479fe4aa3ee3d40184f6d3934a0
[INFO] running `Command { std: "docker" "start" "-a" "0b5eaf5dd291c5c72d2d80897378bdcc4e5ed479fe4aa3ee3d40184f6d3934a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b5eaf5dd291c5c72d2d80897378bdcc4e5ed479fe4aa3ee3d40184f6d3934a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5eaf5dd291c5c72d2d80897378bdcc4e5ed479fe4aa3ee3d40184f6d3934a0", kill_on_drop: false }`
[INFO] [stdout] 0b5eaf5dd291c5c72d2d80897378bdcc4e5ed479fe4aa3ee3d40184f6d3934a0
[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] 56dada28571c559b51a339a63ece19e0fbadd39bfd1290a151a20b59c597813f
[INFO] running `Command { std: "docker" "start" "-a" "56dada28571c559b51a339a63ece19e0fbadd39bfd1290a151a20b59c597813f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling ahash v0.8.7
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking iana-time-zone v0.1.59
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking crossbeam-channel v0.5.11
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking time v0.3.31
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking chrono v0.4.33
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling darling_core v0.20.3
[INFO] [stderr]    Compiling enum-map-derive v0.17.0
[INFO] [stderr]     Checking enum-map v2.7.3
[INFO] [stderr]    Compiling darling_macro v0.20.3
[INFO] [stderr]    Compiling darling v0.20.3
[INFO] [stderr]    Compiling enumset_derive v0.8.1
[INFO] [stderr]     Checking enumset v1.1.3
[INFO] [stderr]     Checking cursive_core v0.3.7
[INFO] [stderr]     Checking cursive v0.20.0
[INFO] [stderr]     Checking rudo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `home` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use home;
[INFO] [stdout]   |     ^^^^ the item `home` 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 `home` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use home;
[INFO] [stdout]   |     ^^^^ the item `home` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.61s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "56dada28571c559b51a339a63ece19e0fbadd39bfd1290a151a20b59c597813f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56dada28571c559b51a339a63ece19e0fbadd39bfd1290a151a20b59c597813f", kill_on_drop: false }`
[INFO] [stdout] 56dada28571c559b51a339a63ece19e0fbadd39bfd1290a151a20b59c597813f