[INFO] fetching crate iter-set 2.0.1...
[INFO] testing iter-set-2.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate iter-set 2.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate iter-set 2.0.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iter-set 2.0.1
[INFO] finished tweaking crates.io crate iter-set 2.0.1
[INFO] tweaked toml for crates.io crate iter-set 2.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15aee47a4bf5a333a62ea944a75f7fcf8ab4eefe9769760d6e5f404abc94eb2c
[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" "15aee47a4bf5a333a62ea944a75f7fcf8ab4eefe9769760d6e5f404abc94eb2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15aee47a4bf5a333a62ea944a75f7fcf8ab4eefe9769760d6e5f404abc94eb2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15aee47a4bf5a333a62ea944a75f7fcf8ab4eefe9769760d6e5f404abc94eb2c", kill_on_drop: false }`
[INFO] [stdout] 15aee47a4bf5a333a62ea944a75f7fcf8ab4eefe9769760d6e5f404abc94eb2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aec52bb51aebcc3035acffda2121c5ae2c5849f47791e53a7ee00982c195ede6
[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" "aec52bb51aebcc3035acffda2121c5ae2c5849f47791e53a7ee00982c195ede6", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-set v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "aec52bb51aebcc3035acffda2121c5ae2c5849f47791e53a7ee00982c195ede6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aec52bb51aebcc3035acffda2121c5ae2c5849f47791e53a7ee00982c195ede6", kill_on_drop: false }`
[INFO] [stdout] aec52bb51aebcc3035acffda2121c5ae2c5849f47791e53a7ee00982c195ede6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d310796207d94bd201d0b36027a0955313f49987e9e6b211b89c7f15fa3c87b9
[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" "d310796207d94bd201d0b36027a0955313f49987e9e6b211b89c7f15fa3c87b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-set v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "d310796207d94bd201d0b36027a0955313f49987e9e6b211b89c7f15fa3c87b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d310796207d94bd201d0b36027a0955313f49987e9e6b211b89c7f15fa3c87b9", kill_on_drop: false }`
[INFO] [stdout] d310796207d94bd201d0b36027a0955313f49987e9e6b211b89c7f15fa3c87b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b6fd2dcfd4d4e106eee64e6715541563d2f8f76545383f2811397fbf6b6c8bd
[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" "0b6fd2dcfd4d4e106eee64e6715541563d2f8f76545383f2811397fbf6b6c8bd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iter_set-883847bfa950b7f6
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_combine ... ok
[INFO] [stdout] test tests::test_cmp ... ok
[INFO] [stdout] test tests::test_difference ... ok
[INFO] [stdout] test tests::test_intersection ... ok
[INFO] [stdout] test tests::test_union ... ok
[INFO] [stderr]    Doc-tests iter-set
[INFO] [stdout] test tests::test_symmetric_difference ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - intersection (line 232) ... ok
[INFO] [stdout] test src/lib.rs - cmp (line 31) ... ok
[INFO] [stdout] test src/lib.rs - cmp_by_key (line 59) ... ok
[INFO] [stdout] test src/lib.rs - classify (line 423) ... ok
[INFO] [stdout] test src/lib.rs - difference (line 324) ... ok
[INFO] [stdout] test src/lib.rs - intersection_by (line 261) ... ok
[INFO] [stdout] test src/lib.rs - cmp_by (line 90) ... ok
[INFO] [stdout] test src/lib.rs - union (line 132) ... ok
[INFO] [stdout] test src/lib.rs - intersection_by_key (line 299) ... ok
[INFO] [stdout] test src/lib.rs - symmetric_difference (line 374) ... ok
[INFO] [stdout] test src/lib.rs - union_by_key (line 205) ... ok
[INFO] [stdout] test src/lib.rs - union_by (line 161) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b6fd2dcfd4d4e106eee64e6715541563d2f8f76545383f2811397fbf6b6c8bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6fd2dcfd4d4e106eee64e6715541563d2f8f76545383f2811397fbf6b6c8bd", kill_on_drop: false }`
[INFO] [stdout] 0b6fd2dcfd4d4e106eee64e6715541563d2f8f76545383f2811397fbf6b6c8bd