[INFO] cloning repository https://github.com/duggurd/chain_reaction
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duggurd/chain_reaction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduggurd%2Fchain_reaction", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduggurd%2Fchain_reaction'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b764300bf56cdf600c4d5d1229ad93f8f33156ed
[INFO] checking duggurd/chain_reaction against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduggurd%2Fchain_reaction" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/duggurd/chain_reaction 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/duggurd/chain_reaction
[INFO] finished tweaking git repo https://github.com/duggurd/chain_reaction
[INFO] tweaked toml for git repo https://github.com/duggurd/chain_reaction written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/duggurd/chain_reaction 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]     Updating git repository `https://github.com/chyh1990/yaml-rust.git`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e027f627c54ffba699cd77daa0d6fde966f3f4680e0a3dc12c0f3e4a3f09cce5
[INFO] running `Command { std: "docker" "start" "-a" "e027f627c54ffba699cd77daa0d6fde966f3f4680e0a3dc12c0f3e4a3f09cce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e027f627c54ffba699cd77daa0d6fde966f3f4680e0a3dc12c0f3e4a3f09cce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e027f627c54ffba699cd77daa0d6fde966f3f4680e0a3dc12c0f3e4a3f09cce5", kill_on_drop: false }`
[INFO] [stdout] e027f627c54ffba699cd77daa0d6fde966f3f4680e0a3dc12c0f3e4a3f09cce5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f0111f02b3f214783395ffac452c7c0ee4be0c97aa1f9559ad545d6079b3f5e0
[INFO] running `Command { std: "docker" "start" "-a" "f0111f02b3f214783395ffac452c7c0ee4be0c97aa1f9559ad545d6079b3f5e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking yaml-rust v0.4.5 (https://github.com/chyh1990/yaml-rust.git#da52a686)
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking chainz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ScheduleType`, `Task`
[INFO] [stdout]  --> src/bin/server.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chainz::task::{ScheduleType, Task};
[INFO] [stdout]   |                    ^^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ScheduleType`, `Task`
[INFO] [stdout]  --> src/bin/server.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chainz::task::{ScheduleType, Task};
[INFO] [stdout]   |                    ^^^^^^^^^^^^  ^^^^
[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 18.74s
[INFO] running `Command { std: "docker" "inspect" "f0111f02b3f214783395ffac452c7c0ee4be0c97aa1f9559ad545d6079b3f5e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0111f02b3f214783395ffac452c7c0ee4be0c97aa1f9559ad545d6079b3f5e0", kill_on_drop: false }`
[INFO] [stdout] f0111f02b3f214783395ffac452c7c0ee4be0c97aa1f9559ad545d6079b3f5e0
[INFO] checking duggurd/chain_reaction against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduggurd%2Fchain_reaction" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/duggurd/chain_reaction 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/duggurd/chain_reaction
[INFO] finished tweaking git repo https://github.com/duggurd/chain_reaction
[INFO] tweaked toml for git repo https://github.com/duggurd/chain_reaction written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/duggurd/chain_reaction 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 159fc1f741a537f2ecb1940297b7839bbddb138118887b5337c15014ad8b114c
[INFO] running `Command { std: "docker" "start" "-a" "159fc1f741a537f2ecb1940297b7839bbddb138118887b5337c15014ad8b114c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "159fc1f741a537f2ecb1940297b7839bbddb138118887b5337c15014ad8b114c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "159fc1f741a537f2ecb1940297b7839bbddb138118887b5337c15014ad8b114c", kill_on_drop: false }`
[INFO] [stdout] 159fc1f741a537f2ecb1940297b7839bbddb138118887b5337c15014ad8b114c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9ded70ed4221c24f1996db30c84d8520ab47d3330cdabc3e365f08caac79816f
[INFO] running `Command { std: "docker" "start" "-a" "9ded70ed4221c24f1996db30c84d8520ab47d3330cdabc3e365f08caac79816f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking yaml-rust v0.4.5 (https://github.com/chyh1990/yaml-rust.git#da52a686)
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking chainz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ScheduleType`, `Task`
[INFO] [stdout]  --> src/bin/server.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chainz::task::{ScheduleType, Task};
[INFO] [stdout]   |                    ^^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ScheduleType`, `Task`
[INFO] [stdout]  --> src/bin/server.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chainz::task::{ScheduleType, Task};
[INFO] [stdout]   |                    ^^^^^^^^^^^^  ^^^^
[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 17.42s
[INFO] running `Command { std: "docker" "inspect" "9ded70ed4221c24f1996db30c84d8520ab47d3330cdabc3e365f08caac79816f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ded70ed4221c24f1996db30c84d8520ab47d3330cdabc3e365f08caac79816f", kill_on_drop: false }`
[INFO] [stdout] 9ded70ed4221c24f1996db30c84d8520ab47d3330cdabc3e365f08caac79816f