[INFO] cloning repository https://github.com/adriantombu/mubo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adriantombu/mubo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriantombu%2Fmubo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriantombu%2Fmubo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0b3a8f484a8c0b3ac9952b23d7d04c2f33f784e
[INFO] checking adriantombu/mubo against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriantombu%2Fmubo" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adriantombu/mubo 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/adriantombu/mubo
[INFO] finished tweaking git repo https://github.com/adriantombu/mubo
[INFO] tweaked toml for git repo https://github.com/adriantombu/mubo written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/adriantombu/mubo 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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4eee6849d11163979e3ad09db8ffe8d7d61c524f3dc68ba940be69da2ecbc861
[INFO] running `Command { std: "docker" "start" "-a" "4eee6849d11163979e3ad09db8ffe8d7d61c524f3dc68ba940be69da2ecbc861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4eee6849d11163979e3ad09db8ffe8d7d61c524f3dc68ba940be69da2ecbc861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eee6849d11163979e3ad09db8ffe8d7d61c524f3dc68ba940be69da2ecbc861", kill_on_drop: false }`
[INFO] [stdout] 4eee6849d11163979e3ad09db8ffe8d7d61c524f3dc68ba940be69da2ecbc861
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] cc89400e0b68f65183beb234871d7f0257eea6a8e49848cea12fcd839b244ad5
[INFO] running `Command { std: "docker" "start" "-a" "cc89400e0b68f65183beb234871d7f0257eea6a8e49848cea12fcd839b244ad5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking winnow v0.5.4
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking mubo v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `'_` cannot be used here
[INFO] [stdout]  --> src/templates.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const LINK_TEMPLATE: &'_ str = r#"
[INFO] [stdout]   |                           ^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout]   = note: `#[warn(elided_lifetimes_in_associated_constant)]` on by default
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const LINK_TEMPLATE: &'static str = r#"
[INFO] [stdout]   |                           ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `'_` cannot be used here
[INFO] [stdout]   --> src/templates.rs:26:24
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const LINK_INDEX: &'_ str = r#"
[INFO] [stdout]    |                        ^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const LINK_INDEX: &'static str = r#"
[INFO] [stdout]    |                        ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `'_` cannot be used here
[INFO] [stdout]  --> src/templates.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const LINK_TEMPLATE: &'_ str = r#"
[INFO] [stdout]   |                           ^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout]   = note: `#[warn(elided_lifetimes_in_associated_constant)]` on by default
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const LINK_TEMPLATE: &'static str = r#"
[INFO] [stdout]   |                           ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `'_` cannot be used here
[INFO] [stdout]   --> src/templates.rs:26:24
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const LINK_INDEX: &'_ str = r#"
[INFO] [stdout]    |                        ^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const LINK_INDEX: &'static str = r#"
[INFO] [stdout]    |                        ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.51s
[INFO] running `Command { std: "docker" "inspect" "cc89400e0b68f65183beb234871d7f0257eea6a8e49848cea12fcd839b244ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc89400e0b68f65183beb234871d7f0257eea6a8e49848cea12fcd839b244ad5", kill_on_drop: false }`
[INFO] [stdout] cc89400e0b68f65183beb234871d7f0257eea6a8e49848cea12fcd839b244ad5
[INFO] checking adriantombu/mubo against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriantombu%2Fmubo" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adriantombu/mubo 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/adriantombu/mubo
[INFO] finished tweaking git repo https://github.com/adriantombu/mubo
[INFO] tweaked toml for git repo https://github.com/adriantombu/mubo written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/adriantombu/mubo 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6bb0b6910e1ae7b893a847294793c0cb859d1c308a24fb1e74ec60d2c78efe9c
[INFO] running `Command { std: "docker" "start" "-a" "6bb0b6910e1ae7b893a847294793c0cb859d1c308a24fb1e74ec60d2c78efe9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bb0b6910e1ae7b893a847294793c0cb859d1c308a24fb1e74ec60d2c78efe9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bb0b6910e1ae7b893a847294793c0cb859d1c308a24fb1e74ec60d2c78efe9c", kill_on_drop: false }`
[INFO] [stdout] 6bb0b6910e1ae7b893a847294793c0cb859d1c308a24fb1e74ec60d2c78efe9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 364a8684d2b3f320138e9e35588525aa2f3e49b470302b42570d2238b8213d5b
[INFO] running `Command { std: "docker" "start" "-a" "364a8684d2b3f320138e9e35588525aa2f3e49b470302b42570d2238b8213d5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking winnow v0.5.4
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking mubo v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `'_` cannot be used here
[INFO] [stdout]  --> src/templates.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const LINK_TEMPLATE: &'_ str = r#"
[INFO] [stdout]   |                           ^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout]   = note: `#[warn(elided_lifetimes_in_associated_constant)]` on by default
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const LINK_TEMPLATE: &'static str = r#"
[INFO] [stdout]   |                           ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `'_` cannot be used here
[INFO] [stdout]  --> src/templates.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const LINK_TEMPLATE: &'_ str = r#"
[INFO] [stdout]   |                           ^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout]   = note: `#[warn(elided_lifetimes_in_associated_constant)]` on by default
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const LINK_TEMPLATE: &'static str = r#"
[INFO] [stdout]   |                           ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `'_` cannot be used here
[INFO] [stdout]   --> src/templates.rs:26:24
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const LINK_INDEX: &'_ str = r#"
[INFO] [stdout]    |                        ^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const LINK_INDEX: &'static str = r#"
[INFO] [stdout]    |                        ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `'_` cannot be used here
[INFO] [stdout]   --> src/templates.rs:26:24
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const LINK_INDEX: &'_ str = r#"
[INFO] [stdout]    |                        ^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const LINK_INDEX: &'static str = r#"
[INFO] [stdout]    |                        ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `Command { std: "docker" "inspect" "364a8684d2b3f320138e9e35588525aa2f3e49b470302b42570d2238b8213d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "364a8684d2b3f320138e9e35588525aa2f3e49b470302b42570d2238b8213d5b", kill_on_drop: false }`
[INFO] [stdout] 364a8684d2b3f320138e9e35588525aa2f3e49b470302b42570d2238b8213d5b