[INFO] fetching crate jact 0.4.2...
[INFO] checking jact-0.4.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate jact 0.4.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate jact 0.4.2 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] started tweaking crates.io crate jact 0.4.2
[INFO] finished tweaking crates.io crate jact 0.4.2
[INFO] tweaked toml for crates.io crate jact 0.4.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate jact 0.4.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-test v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d5670d4a16caa295dac70e03f4e748a47c6dcead6e59fb9e72964fc775e975b1
[INFO] running `Command { std: "docker" "start" "-a" "d5670d4a16caa295dac70e03f4e748a47c6dcead6e59fb9e72964fc775e975b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5670d4a16caa295dac70e03f4e748a47c6dcead6e59fb9e72964fc775e975b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5670d4a16caa295dac70e03f4e748a47c6dcead6e59fb9e72964fc775e975b1", kill_on_drop: false }`
[INFO] [stdout] d5670d4a16caa295dac70e03f4e748a47c6dcead6e59fb9e72964fc775e975b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2c62d65b1e1582766ae552b90cf093adc6fd8f3cff4cd2eba494f3b5e9619df3
[INFO] running `Command { std: "docker" "start" "-a" "2c62d65b1e1582766ae552b90cf093adc6fd8f3cff4cd2eba494f3b5e9619df3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking lock_api v0.4.10
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking futures-channel v0.3.28
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking cron v0.12.0
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking jact v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `stop` is never used
[INFO] [stdout]    --> src/job.rs:110:14
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub trait Job {
[INFO] [stdout]     |           --- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 110 |     async fn stop(&mut self) -> ();
[INFO] [stdout]     |              ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-test v0.4.3
[INFO] [stdout] warning: the item `jact` is imported redundantly
[INFO] [stdout]  --> tests/integration_test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use jact;
[INFO] [stdout]   |     ^^^^ the item `jact` 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: method `stop` is never used
[INFO] [stdout]    --> src/job.rs:110:14
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub trait Job {
[INFO] [stdout]     |           --- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 110 |     async fn stop(&mut self) -> ();
[INFO] [stdout]     |              ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 5.22s
[INFO] running `Command { std: "docker" "inspect" "2c62d65b1e1582766ae552b90cf093adc6fd8f3cff4cd2eba494f3b5e9619df3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c62d65b1e1582766ae552b90cf093adc6fd8f3cff4cd2eba494f3b5e9619df3", kill_on_drop: false }`
[INFO] [stdout] 2c62d65b1e1582766ae552b90cf093adc6fd8f3cff4cd2eba494f3b5e9619df3