[INFO] fetching crate iterslide 1.0.1...
[INFO] testing iterslide-1.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate iterslide 1.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate iterslide 1.0.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iterslide 1.0.1
[INFO] finished tweaking crates.io crate iterslide 1.0.1
[INFO] tweaked toml for crates.io crate iterslide 1.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d8daaf27b52b83fb2615836307d81dba34a3faf4174d7983af041d1c6d23013
[INFO] running `Command { std: "docker" "start" "-a" "7d8daaf27b52b83fb2615836307d81dba34a3faf4174d7983af041d1c6d23013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d8daaf27b52b83fb2615836307d81dba34a3faf4174d7983af041d1c6d23013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d8daaf27b52b83fb2615836307d81dba34a3faf4174d7983af041d1c6d23013", kill_on_drop: false }`
[INFO] [stdout] 7d8daaf27b52b83fb2615836307d81dba34a3faf4174d7983af041d1c6d23013
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ab2eb20ce96fa5b39b91ab67fb9c4cc24619060984572836d38e5302972950b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8ab2eb20ce96fa5b39b91ab67fb9c4cc24619060984572836d38e5302972950b", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterslide v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "8ab2eb20ce96fa5b39b91ab67fb9c4cc24619060984572836d38e5302972950b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ab2eb20ce96fa5b39b91ab67fb9c4cc24619060984572836d38e5302972950b", kill_on_drop: false }`
[INFO] [stdout] 8ab2eb20ce96fa5b39b91ab67fb9c4cc24619060984572836d38e5302972950b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62aaf9d6232ea7f481f51302db6649ef0d7b4e2b05dad26ac4da9b556cdfe421
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "62aaf9d6232ea7f481f51302db6649ef0d7b4e2b05dad26ac4da9b556cdfe421", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterslide v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "62aaf9d6232ea7f481f51302db6649ef0d7b4e2b05dad26ac4da9b556cdfe421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62aaf9d6232ea7f481f51302db6649ef0d7b4e2b05dad26ac4da9b556cdfe421", kill_on_drop: false }`
[INFO] [stdout] 62aaf9d6232ea7f481f51302db6649ef0d7b4e2b05dad26ac4da9b556cdfe421
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fa812ca553dac57a6d1af8e946b82568762661370ec0eefa2fcb514028e740bd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fa812ca553dac57a6d1af8e946b82568762661370ec0eefa2fcb514028e740bd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iterslide-d7c95594455f3b8a
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_slide ... ok
[INFO] [stdout] test test_slide_equal_window ... ok
[INFO] [stdout] test test_slide_zero_window ... ok
[INFO] [stdout] test test_slide_overlong_window ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iterslide
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fa812ca553dac57a6d1af8e946b82568762661370ec0eefa2fcb514028e740bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa812ca553dac57a6d1af8e946b82568762661370ec0eefa2fcb514028e740bd", kill_on_drop: false }`
[INFO] [stdout] fa812ca553dac57a6d1af8e946b82568762661370ec0eefa2fcb514028e740bd