[INFO] fetching crate unit17 0.1.0...
[INFO] testing unit17-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate unit17 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate unit17 0.1.0
[INFO] finished tweaking crates.io crate unit17 0.1.0
[INFO] tweaked toml for crates.io crate unit17 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unit17 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unit17 0.1.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c366dd4855c57a9e3623fd328e061fec52112a2e5bc24cfc69222f29e337de0
[INFO] running `Command { std: "docker" "start" "-a" "1c366dd4855c57a9e3623fd328e061fec52112a2e5bc24cfc69222f29e337de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c366dd4855c57a9e3623fd328e061fec52112a2e5bc24cfc69222f29e337de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c366dd4855c57a9e3623fd328e061fec52112a2e5bc24cfc69222f29e337de0", kill_on_drop: false }`
[INFO] [stdout] 1c366dd4855c57a9e3623fd328e061fec52112a2e5bc24cfc69222f29e337de0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4995dfac809ae99d8ea0f180da226235a3f33664c563ce30825e3765ddd62167
[INFO] running `Command { std: "docker" "start" "-a" "4995dfac809ae99d8ea0f180da226235a3f33664c563ce30825e3765ddd62167", kill_on_drop: false }`
[INFO] [stderr]    Compiling unit17 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `dyn_struct_vec` is never read
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct DynStruct {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 40 |     dyn_struct_vec: Vec<Box<dyn DynTrait>>,// 为了将trait用作trait对象，此处必需要将它放在某种指针之后，比如：&dyn trait、Box<dyn trait>、Rc<dyn trait>...
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "4995dfac809ae99d8ea0f180da226235a3f33664c563ce30825e3765ddd62167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4995dfac809ae99d8ea0f180da226235a3f33664c563ce30825e3765ddd62167", kill_on_drop: false }`
[INFO] [stdout] 4995dfac809ae99d8ea0f180da226235a3f33664c563ce30825e3765ddd62167
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1826f46590ccd386f9f002f9cc275c5734735374d887a26df559c0f984e66d39
[INFO] running `Command { std: "docker" "start" "-a" "1826f46590ccd386f9f002f9cc275c5734735374d887a26df559c0f984e66d39", kill_on_drop: false }`
[INFO] [stderr]    Compiling unit17 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `dyn_struct_vec` is never read
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct DynStruct {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 40 |     dyn_struct_vec: Vec<Box<dyn DynTrait>>,// 为了将trait用作trait对象，此处必需要将它放在某种指针之后，比如：&dyn trait、Box<dyn trait>、Rc<dyn trait>...
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "1826f46590ccd386f9f002f9cc275c5734735374d887a26df559c0f984e66d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1826f46590ccd386f9f002f9cc275c5734735374d887a26df559c0f984e66d39", kill_on_drop: false }`
[INFO] [stdout] 1826f46590ccd386f9f002f9cc275c5734735374d887a26df559c0f984e66d39
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 69063c0d2bb89e605abb506d4fec295314c0442dff1d2575a688cd4734c49335
[INFO] running `Command { std: "docker" "start" "-a" "69063c0d2bb89e605abb506d4fec295314c0442dff1d2575a688cd4734c49335", kill_on_drop: false }`
[INFO] [stderr] warning: field `dyn_struct_vec` is never read
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | struct DynStruct {
[INFO] [stderr]    |        --------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 40 |     dyn_struct_vec: Vec<Box<dyn DynTrait>>,// 为了将trait用作trait对象，此处必需要将它放在某种指针之后，比如：&dyn trait、Box<dyn trait>、Rc<dyn trait>...
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `unit17` (bin "unit17" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/unit17-9a596083ef1a7dec)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "69063c0d2bb89e605abb506d4fec295314c0442dff1d2575a688cd4734c49335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69063c0d2bb89e605abb506d4fec295314c0442dff1d2575a688cd4734c49335", kill_on_drop: false }`
[INFO] [stdout] 69063c0d2bb89e605abb506d4fec295314c0442dff1d2575a688cd4734c49335