[INFO] fetching crate kukan 0.1.2...
[INFO] testing kukan-0.1.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate kukan 0.1.2 into /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kukan 0.1.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36ec328641732958c9d231e33337528aa128cee05d55241001695464ac095d3a
[INFO] running `Command { std: "docker" "start" "-a" "36ec328641732958c9d231e33337528aa128cee05d55241001695464ac095d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36ec328641732958c9d231e33337528aa128cee05d55241001695464ac095d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ec328641732958c9d231e33337528aa128cee05d55241001695464ac095d3a", kill_on_drop: false }`
[INFO] [stdout] 36ec328641732958c9d231e33337528aa128cee05d55241001695464ac095d3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25aa0c7e1c8b51c6df18f6ac2bea0f38339b52aeedc753fbad7a3231a6791164
[INFO] running `Command { std: "docker" "start" "-a" "25aa0c7e1c8b51c6df18f6ac2bea0f38339b52aeedc753fbad7a3231a6791164", 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)]` 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" "25aa0c7e1c8b51c6df18f6ac2bea0f38339b52aeedc753fbad7a3231a6791164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25aa0c7e1c8b51c6df18f6ac2bea0f38339b52aeedc753fbad7a3231a6791164", kill_on_drop: false }`
[INFO] [stdout] 25aa0c7e1c8b51c6df18f6ac2bea0f38339b52aeedc753fbad7a3231a6791164
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b231fad9b80918a0795d0e64bef2a2431dff27c75d076e12959861efd3f42c55
[INFO] running `Command { std: "docker" "start" "-a" "b231fad9b80918a0795d0e64bef2a2431dff27c75d076e12959861efd3f42c55", 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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "b231fad9b80918a0795d0e64bef2a2431dff27c75d076e12959861efd3f42c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b231fad9b80918a0795d0e64bef2a2431dff27c75d076e12959861efd3f42c55", kill_on_drop: false }`
[INFO] [stdout] b231fad9b80918a0795d0e64bef2a2431dff27c75d076e12959861efd3f42c55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 75a66a37ab40f8bca096bde5a4a6c17e6e145b828be82d1307ec85d66ce30421
[INFO] running `Command { std: "docker" "start" "-a" "75a66a37ab40f8bca096bde5a4a6c17e6e145b828be82d1307ec85d66ce30421", 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)]` 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 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kukan-ca462da4e922c303)
[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] [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" "75a66a37ab40f8bca096bde5a4a6c17e6e145b828be82d1307ec85d66ce30421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75a66a37ab40f8bca096bde5a4a6c17e6e145b828be82d1307ec85d66ce30421", kill_on_drop: false }`
[INFO] [stdout] 75a66a37ab40f8bca096bde5a4a6c17e6e145b828be82d1307ec85d66ce30421