[INFO] fetching crate kukan 0.1.2...
[INFO] testing kukan-0.1.2 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate kukan 0.1.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate kukan 0.1.2
[INFO] finished tweaking crates.io crate kukan 0.1.2
[INFO] tweaked toml for crates.io crate kukan 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kukan 0.1.2 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6213d9b268a25cab9fc66e9618d378f22e735dda11893e4b4070a8bb82a654e7
[INFO] running `Command { std: "docker" "start" "-a" "6213d9b268a25cab9fc66e9618d378f22e735dda11893e4b4070a8bb82a654e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6213d9b268a25cab9fc66e9618d378f22e735dda11893e4b4070a8bb82a654e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6213d9b268a25cab9fc66e9618d378f22e735dda11893e4b4070a8bb82a654e7", kill_on_drop: false }`
[INFO] [stdout] 6213d9b268a25cab9fc66e9618d378f22e735dda11893e4b4070a8bb82a654e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17f9feac243268f5a7b40185d51bf96d4bab5988ed3f8b3e88e22e727b1c00a6
[INFO] running `Command { std: "docker" "start" "-a" "17f9feac243268f5a7b40185d51bf96d4bab5988ed3f8b3e88e22e727b1c00a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling kukan v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ClosestValue` is never used
[INFO] [stdout]  --> src/closest.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait ClosestValue<T>: Contain<T>
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "17f9feac243268f5a7b40185d51bf96d4bab5988ed3f8b3e88e22e727b1c00a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f9feac243268f5a7b40185d51bf96d4bab5988ed3f8b3e88e22e727b1c00a6", kill_on_drop: false }`
[INFO] [stdout] 17f9feac243268f5a7b40185d51bf96d4bab5988ed3f8b3e88e22e727b1c00a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c63e918e2f64e0bf0ab846fa92de551514270568a49533fe894de2ca9a03d1ac
[INFO] running `Command { std: "docker" "start" "-a" "c63e918e2f64e0bf0ab846fa92de551514270568a49533fe894de2ca9a03d1ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling kukan v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ClosestValue` is never used
[INFO] [stdout]  --> src/closest.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait ClosestValue<T>: Contain<T>
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ClosestValue` is never used
[INFO] [stdout]  --> src/closest.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait ClosestValue<T>: Contain<T>
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "c63e918e2f64e0bf0ab846fa92de551514270568a49533fe894de2ca9a03d1ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c63e918e2f64e0bf0ab846fa92de551514270568a49533fe894de2ca9a03d1ac", kill_on_drop: false }`
[INFO] [stdout] c63e918e2f64e0bf0ab846fa92de551514270568a49533fe894de2ca9a03d1ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2fec8137d7a9ad7dc40844c75cb8aea9cffb10c60457b28ef40ee63572b1d929
[INFO] running `Command { std: "docker" "start" "-a" "2fec8137d7a9ad7dc40844c75cb8aea9cffb10c60457b28ef40ee63572b1d929", kill_on_drop: false }`
[INFO] [stderr] warning: trait `ClosestValue` is never used
[INFO] [stderr]  --> src/closest.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub trait ClosestValue<T>: Contain<T>
[INFO] [stderr]   |           ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kukan` (lib) generated 1 warning
[INFO] [stderr] warning: `kukan` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kukan-ca462da4e922c303)
[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 kukan
[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" "2fec8137d7a9ad7dc40844c75cb8aea9cffb10c60457b28ef40ee63572b1d929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fec8137d7a9ad7dc40844c75cb8aea9cffb10c60457b28ef40ee63572b1d929", kill_on_drop: false }`
[INFO] [stdout] 2fec8137d7a9ad7dc40844c75cb8aea9cffb10c60457b28ef40ee63572b1d929