[INFO] cloning repository https://github.com/comcxx11/seojin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/comcxx11/seojin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomcxx11%2Fseojin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomcxx11%2Fseojin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da35224cb4fb8db4196336e680731bebc3f36dd8
[INFO] testing comcxx11/seojin against try#17092ad00ed8fe1e7f81a7e38238ff70779034b1 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomcxx11%2Fseojin" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/comcxx11/seojin on toolchain 17092ad00ed8fe1e7f81a7e38238ff70779034b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/comcxx11/seojin
[INFO] finished tweaking git repo https://github.com/comcxx11/seojin
[INFO] tweaked toml for git repo https://github.com/comcxx11/seojin written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/comcxx11/seojin 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" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6840a58a493a65b12a1a65bad3aeb12a5c358cf80ad79447693596f01730ac1f
[INFO] running `Command { std: "docker" "start" "-a" "6840a58a493a65b12a1a65bad3aeb12a5c358cf80ad79447693596f01730ac1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6840a58a493a65b12a1a65bad3aeb12a5c358cf80ad79447693596f01730ac1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6840a58a493a65b12a1a65bad3aeb12a5c358cf80ad79447693596f01730ac1f", kill_on_drop: false }`
[INFO] [stdout] 6840a58a493a65b12a1a65bad3aeb12a5c358cf80ad79447693596f01730ac1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d51a67355c6c8a55b30999bf5cf6f233cc909ae36b61f5b6b9ac6dff31e6609d
[INFO] running `Command { std: "docker" "start" "-a" "d51a67355c6c8a55b30999bf5cf6f233cc909ae36b61f5b6b9ac6dff31e6609d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling seojin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `guess` is never used
[INFO] [stdout]  --> src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn guess() {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u_int` is never used
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn u_int() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_vec32` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn print_vec32() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[warn(dead_code)]
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "d51a67355c6c8a55b30999bf5cf6f233cc909ae36b61f5b6b9ac6dff31e6609d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d51a67355c6c8a55b30999bf5cf6f233cc909ae36b61f5b6b9ac6dff31e6609d", kill_on_drop: false }`
[INFO] [stdout] d51a67355c6c8a55b30999bf5cf6f233cc909ae36b61f5b6b9ac6dff31e6609d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dd79a634f4a60db5ea55995d5244f1745f5267cbdde96ebcb9100983bb249fc
[INFO] running `Command { std: "docker" "start" "-a" "2dd79a634f4a60db5ea55995d5244f1745f5267cbdde96ebcb9100983bb249fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling seojin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `guess` is never used
[INFO] [stdout]  --> src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn guess() {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u_int` is never used
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn u_int() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_vec32` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn print_vec32() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[warn(dead_code)]
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "2dd79a634f4a60db5ea55995d5244f1745f5267cbdde96ebcb9100983bb249fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd79a634f4a60db5ea55995d5244f1745f5267cbdde96ebcb9100983bb249fc", kill_on_drop: false }`
[INFO] [stdout] 2dd79a634f4a60db5ea55995d5244f1745f5267cbdde96ebcb9100983bb249fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 38c4140397de121965e0dae5fd452a179ae75e9d746803b7e0fcc9c32d38016e
[INFO] running `Command { std: "docker" "start" "-a" "38c4140397de121965e0dae5fd452a179ae75e9d746803b7e0fcc9c32d38016e", kill_on_drop: false }`
[INFO] [stderr] warning: function `guess` is never used
[INFO] [stderr]  --> src/main.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn guess() {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `u_int` is never used
[INFO] [stderr]   --> src/main.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn u_int() {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_vec32` is never used
[INFO] [stderr]   --> src/main.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn print_vec32() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/main.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | #[warn(dead_code)]
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `seojin` (bin "seojin" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/seojin-95032bd2f76424f5)
[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" "38c4140397de121965e0dae5fd452a179ae75e9d746803b7e0fcc9c32d38016e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c4140397de121965e0dae5fd452a179ae75e9d746803b7e0fcc9c32d38016e", kill_on_drop: false }`
[INFO] [stdout] 38c4140397de121965e0dae5fd452a179ae75e9d746803b7e0fcc9c32d38016e