[INFO] fetching crate cliff 0.3.2...
[INFO] testing cliff-0.3.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate cliff 0.3.2 into /workspace/builds/worker-74/source
[INFO] validating manifest of crates.io crate cliff 0.3.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cliff 0.3.2
[INFO] finished tweaking crates.io crate cliff 0.3.2
[INFO] tweaked toml for crates.io crate cliff 0.3.2 written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 137ac6ee8b258d3a8ceb7f8e7d0e084ce640cdc37c71cf6bc73faf01822007ae
[INFO] running `Command { std: "docker" "start" "-a" "137ac6ee8b258d3a8ceb7f8e7d0e084ce640cdc37c71cf6bc73faf01822007ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "137ac6ee8b258d3a8ceb7f8e7d0e084ce640cdc37c71cf6bc73faf01822007ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "137ac6ee8b258d3a8ceb7f8e7d0e084ce640cdc37c71cf6bc73faf01822007ae", kill_on_drop: false }`
[INFO] [stdout] 137ac6ee8b258d3a8ceb7f8e7d0e084ce640cdc37c71cf6bc73faf01822007ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b48ee812400801feab162b7163f2ce3d10ebccd947458bb23dbb4c4cd31cc5d
[INFO] running `Command { std: "docker" "start" "-a" "9b48ee812400801feab162b7163f2ce3d10ebccd947458bb23dbb4c4cd31cc5d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cliff v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `start`
[INFO] [stdout]  --> src/exponential.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     start: usize,
[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 1.13s
[INFO] running `Command { std: "docker" "inspect" "9b48ee812400801feab162b7163f2ce3d10ebccd947458bb23dbb4c4cd31cc5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b48ee812400801feab162b7163f2ce3d10ebccd947458bb23dbb4c4cd31cc5d", kill_on_drop: false }`
[INFO] [stdout] 9b48ee812400801feab162b7163f2ce3d10ebccd947458bb23dbb4c4cd31cc5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bd7e02f476069a537b8abfcd44ad704fe57298ac37470cda2f4282fb81d33bb
[INFO] running `Command { std: "docker" "start" "-a" "2bd7e02f476069a537b8abfcd44ad704fe57298ac37470cda2f4282fb81d33bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: field is never read: `start`
[INFO] [stdout]  --> src/exponential.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     start: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cliff v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start`
[INFO] [stdout]  --> src/exponential.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     start: usize,
[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 1.13s
[INFO] running `Command { std: "docker" "inspect" "2bd7e02f476069a537b8abfcd44ad704fe57298ac37470cda2f4282fb81d33bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bd7e02f476069a537b8abfcd44ad704fe57298ac37470cda2f4282fb81d33bb", kill_on_drop: false }`
[INFO] [stdout] 2bd7e02f476069a537b8abfcd44ad704fe57298ac37470cda2f4282fb81d33bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28ca82596f50336fe71e6b72bbd0a0c7fc8d5c992ba24a7b6427758f18e5dcd1
[INFO] running `Command { std: "docker" "start" "-a" "28ca82596f50336fe71e6b72bbd0a0c7fc8d5c992ba24a7b6427758f18e5dcd1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `start`
[INFO] [stderr]  --> src/exponential.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     start: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cliff` (lib) generated 1 warning
[INFO] [stderr] warning: `cliff` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cliff-03581d0fd35b678e)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stderr]    Doc-tests cliff
[INFO] [stdout] test binmin::immediate ... ok
[INFO] [stdout] test binmin::search_from_until ... ok
[INFO] [stdout] test binmin::through_trait ... ok
[INFO] [stdout] test exponential::fill_search ... ok
[INFO] [stdout] test exponential::immediate ... ok
[INFO] [stdout] test exponential::search_from ... ok
[INFO] [stdout] test exponential::search_from_until ... ok
[INFO] [stdout] test exponential::through_trait ... ok
[INFO] [stdout] test linear::linear_fail ... ok
[INFO] [stdout] test linear::linear_nofail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/binmin.rs - binmin::BinaryMinSearcher (line 5) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 48) ... ok
[INFO] [stdout] test src/lib.rs - (line 84) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "28ca82596f50336fe71e6b72bbd0a0c7fc8d5c992ba24a7b6427758f18e5dcd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ca82596f50336fe71e6b72bbd0a0c7fc8d5c992ba24a7b6427758f18e5dcd1", kill_on_drop: false }`
[INFO] [stdout] 28ca82596f50336fe71e6b72bbd0a0c7fc8d5c992ba24a7b6427758f18e5dcd1