[INFO] fetching crate ixlist 0.1.0...
[INFO] testing ixlist-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ixlist 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ixlist 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ixlist 0.1.0
[INFO] finished tweaking crates.io crate ixlist 0.1.0
[INFO] tweaked toml for crates.io crate ixlist 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38772baa5077d4220fdb9960e6a4952a599f6b721b263ed6238d9f2125558275
[INFO] running `Command { std: "docker" "start" "-a" "38772baa5077d4220fdb9960e6a4952a599f6b721b263ed6238d9f2125558275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38772baa5077d4220fdb9960e6a4952a599f6b721b263ed6238d9f2125558275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38772baa5077d4220fdb9960e6a4952a599f6b721b263ed6238d9f2125558275", kill_on_drop: false }`
[INFO] [stdout] 38772baa5077d4220fdb9960e6a4952a599f6b721b263ed6238d9f2125558275
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bafd3ee8e9aab05aa4d2d36377b3af0fe2b561ec15fb852cd6478302bd7b51e
[INFO] running `Command { std: "docker" "start" "-a" "9bafd3ee8e9aab05aa4d2d36377b3af0fe2b561ec15fb852cd6478302bd7b51e", kill_on_drop: false }`
[INFO] [stderr]    Compiling ixlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "9bafd3ee8e9aab05aa4d2d36377b3af0fe2b561ec15fb852cd6478302bd7b51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bafd3ee8e9aab05aa4d2d36377b3af0fe2b561ec15fb852cd6478302bd7b51e", kill_on_drop: false }`
[INFO] [stdout] 9bafd3ee8e9aab05aa4d2d36377b3af0fe2b561ec15fb852cd6478302bd7b51e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcf09e34f02330ec90d544477104a4b90f68fb3d8a0a0445888e607d7bdc3aff
[INFO] running `Command { std: "docker" "start" "-a" "fcf09e34f02330ec90d544477104a4b90f68fb3d8a0a0445888e607d7bdc3aff", kill_on_drop: false }`
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling itertools v0.6.5
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling ixlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.71s
[INFO] running `Command { std: "docker" "inspect" "fcf09e34f02330ec90d544477104a4b90f68fb3d8a0a0445888e607d7bdc3aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcf09e34f02330ec90d544477104a4b90f68fb3d8a0a0445888e607d7bdc3aff", kill_on_drop: false }`
[INFO] [stdout] fcf09e34f02330ec90d544477104a4b90f68fb3d8a0a0445888e607d7bdc3aff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 70e3b6541b3fcf4fc19fe717de063da08a07074897b9583659f375d2d18a301d
[INFO] running `Command { std: "docker" "start" "-a" "70e3b6541b3fcf4fc19fe717de063da08a07074897b9583659f375d2d18a301d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ixlist-03d0447632d99140)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/list.rs (/opt/rustwide/target/debug/deps/list-75a9cdb2b3dff9bd)
[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 6 tests
[INFO] [stdout] test basic ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test cursor ... ok
[INFO] [stdout] test from_iter ... ok
[INFO] [stdout] test push_pop ... ok
[INFO] [stderr]    Doc-tests ixlist
[INFO] [stdout] test extend ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - List (line 49) ... ignored
[INFO] [stdout] test src/lib.rs - List (line 59) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "70e3b6541b3fcf4fc19fe717de063da08a07074897b9583659f375d2d18a301d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70e3b6541b3fcf4fc19fe717de063da08a07074897b9583659f375d2d18a301d", kill_on_drop: false }`
[INFO] [stdout] 70e3b6541b3fcf4fc19fe717de063da08a07074897b9583659f375d2d18a301d