[INFO] fetching crate kukan 0.1.2...
[INFO] checking kukan-0.1.2 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate kukan 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate kukan 0.1.2 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67d0b92c06e93e8ebfd5d37389ca56563ce4ffd8d6ae26b7a42d6bf23ace1cb0
[INFO] running `Command { std: "docker" "start" "-a" "67d0b92c06e93e8ebfd5d37389ca56563ce4ffd8d6ae26b7a42d6bf23ace1cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67d0b92c06e93e8ebfd5d37389ca56563ce4ffd8d6ae26b7a42d6bf23ace1cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d0b92c06e93e8ebfd5d37389ca56563ce4ffd8d6ae26b7a42d6bf23ace1cb0", kill_on_drop: false }`
[INFO] [stdout] 67d0b92c06e93e8ebfd5d37389ca56563ce4ffd8d6ae26b7a42d6bf23ace1cb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a73cf42479ccd0b88f5ece24b27dc35a8a817229e5e434536cc722d0ec66be1
[INFO] running `Command { std: "docker" "start" "-a" "9a73cf42479ccd0b88f5ece24b27dc35a8a817229e5e434536cc722d0ec66be1", kill_on_drop: false }`
[INFO] [stderr]     Checking 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "9a73cf42479ccd0b88f5ece24b27dc35a8a817229e5e434536cc722d0ec66be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a73cf42479ccd0b88f5ece24b27dc35a8a817229e5e434536cc722d0ec66be1", kill_on_drop: false }`
[INFO] [stdout] 9a73cf42479ccd0b88f5ece24b27dc35a8a817229e5e434536cc722d0ec66be1
[INFO] checking kukan-0.1.2 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate kukan 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate kukan 0.1.2 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2319faf2af6d3e1a0da1e0ccfed60772ef1785e4ec97813e2389e19c3bbb820a
[INFO] running `Command { std: "docker" "start" "-a" "2319faf2af6d3e1a0da1e0ccfed60772ef1785e4ec97813e2389e19c3bbb820a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2319faf2af6d3e1a0da1e0ccfed60772ef1785e4ec97813e2389e19c3bbb820a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2319faf2af6d3e1a0da1e0ccfed60772ef1785e4ec97813e2389e19c3bbb820a", kill_on_drop: false }`
[INFO] [stdout] 2319faf2af6d3e1a0da1e0ccfed60772ef1785e4ec97813e2389e19c3bbb820a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2429a6dbc9c9575a290e376f439d7239c7aa8b043295485ff2c029f8c25fc203
[INFO] running `Command { std: "docker" "start" "-a" "2429a6dbc9c9575a290e376f439d7239c7aa8b043295485ff2c029f8c25fc203", kill_on_drop: false }`
[INFO] [stderr]     Checking 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "2429a6dbc9c9575a290e376f439d7239c7aa8b043295485ff2c029f8c25fc203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2429a6dbc9c9575a290e376f439d7239c7aa8b043295485ff2c029f8c25fc203", kill_on_drop: false }`
[INFO] [stdout] 2429a6dbc9c9575a290e376f439d7239c7aa8b043295485ff2c029f8c25fc203