[INFO] cloning repository https://github.com/seungha-kim/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seungha-kim/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d68a9bf554865f68025307033b6466798698d7d
[INFO] testing seungha-kim/rust-practice against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Frust-practice" "/workspace/builds/worker-68/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seungha-kim/rust-practice on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/seungha-kim/rust-practice
[INFO] finished tweaking git repo https://github.com/seungha-kim/rust-practice
[INFO] tweaked toml for git repo https://github.com/seungha-kim/rust-practice written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] crate git repo https://github.com/seungha-kim/rust-practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5661eee63614255ef05089d6751482364d2fedee1d07a8c6fc7e381d543bb0e7
[INFO] running `Command { std: "docker" "start" "-a" "5661eee63614255ef05089d6751482364d2fedee1d07a8c6fc7e381d543bb0e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5661eee63614255ef05089d6751482364d2fedee1d07a8c6fc7e381d543bb0e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5661eee63614255ef05089d6751482364d2fedee1d07a8c6fc7e381d543bb0e7", kill_on_drop: false }`
[INFO] [stdout] 5661eee63614255ef05089d6751482364d2fedee1d07a8c6fc7e381d543bb0e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2996072c245d275af44f6741a3965c307fd5a91e33f88c927a0b5d6f57f803ca
[INFO] running `Command { std: "docker" "start" "-a" "2996072c245d275af44f6741a3965c307fd5a91e33f88c927a0b5d6f57f803ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling snakehead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `num`
[INFO] [stdout]  --> src/copy/copy.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   num: u32,
[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 [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "2996072c245d275af44f6741a3965c307fd5a91e33f88c927a0b5d6f57f803ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2996072c245d275af44f6741a3965c307fd5a91e33f88c927a0b5d6f57f803ca", kill_on_drop: false }`
[INFO] [stdout] 2996072c245d275af44f6741a3965c307fd5a91e33f88c927a0b5d6f57f803ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27d004b486b7826616c5cff155fb2761e6a0ef3a2e354dc3d54167a61877761b
[INFO] running `Command { std: "docker" "start" "-a" "27d004b486b7826616c5cff155fb2761e6a0ef3a2e354dc3d54167a61877761b", kill_on_drop: false }`
[INFO] [stderr]    Compiling snakehead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `num`
[INFO] [stdout]  --> src/copy/copy.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   num: u32,
[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] [stdout] warning: field is never read: `num`
[INFO] [stdout]  --> src/copy/copy.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   num: u32,
[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 test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "27d004b486b7826616c5cff155fb2761e6a0ef3a2e354dc3d54167a61877761b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27d004b486b7826616c5cff155fb2761e6a0ef3a2e354dc3d54167a61877761b", kill_on_drop: false }`
[INFO] [stdout] 27d004b486b7826616c5cff155fb2761e6a0ef3a2e354dc3d54167a61877761b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 23481dd8028106e12b4de0d76371c4f112a3dcc2abd7ff23c30500033b579a66
[INFO] running `Command { std: "docker" "start" "-a" "23481dd8028106e12b4de0d76371c4f112a3dcc2abd7ff23c30500033b579a66", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `num`
[INFO] [stderr]  --> src/copy/copy.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   num: u32,
[INFO] [stderr]   |   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `snakehead` (lib) generated 1 warning
[INFO] [stderr] warning: `snakehead` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snakehead-078bd8f21ab89d28)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test closure::mutandonce::tests::capture_test ... ok
[INFO] [stdout] test closure::mutandonce::tests::memo_copy_works ... ok
[INFO] [stdout] test closure::mutandonce::tests::memo ... ok
[INFO] [stdout] test closure::mutandonce::tests::memo_drop_works1 ... ok
[INFO] [stdout] test closure::mutandonce::tests::memo_drop_works2 ... ok
[INFO] [stdout] test closure::mutandonce::tests::works ... ok
[INFO] [stdout] test closure::mutandonce::tests::works2 ... ok
[INFO] [stdout] test collections::string::tests::string_plus ... ok
[INFO] [stdout] test collections::vec::tests::add_works ... ok
[INFO] [stdout] test collections::vec::tests::vec_get ... ok
[INFO] [stdout] test collections::vec::tests::vec_mut_el ... ok
[INFO] [stdout] test collections::vec::tests::vec_ownership ... ok
[INFO] [stdout] test copy::copy::tests::copy_works ... ok
[INFO] [stdout] test copy::copy::tests::drop_works ... ok
[INFO] [stdout] test copy::copy::tests::reference_is_copiable ... ok
[INFO] [stdout] test copy::copy::tests::reference_is_copiable2 ... ok
[INFO] [stdout] test lifetime::longest::tests::longest_workd ... ok
[INFO] [stdout] test smart::list::tests::list_works ... ok
[INFO] [stdout] test smart::tests::deref_coercion ... ok
[INFO] [stdout] test smart::tests::test ... ok
[INFO] [stdout] test traits::largest::tests::largest_ref_works ... ok
[INFO] [stdout] test traits::largest::tests::largest_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snakehead-e19df63d2b23e25f)
[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] [stderr]    Doc-tests snakehead
[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" "23481dd8028106e12b4de0d76371c4f112a3dcc2abd7ff23c30500033b579a66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23481dd8028106e12b4de0d76371c4f112a3dcc2abd7ff23c30500033b579a66", kill_on_drop: false }`
[INFO] [stdout] 23481dd8028106e12b4de0d76371c4f112a3dcc2abd7ff23c30500033b579a66