[INFO] fetching crate chek 0.1.0...
[INFO] testing chek-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate chek 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate chek 0.1.0 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 chek 0.1.0
[INFO] finished tweaking crates.io crate chek 0.1.0
[INFO] tweaked toml for crates.io crate chek 0.1.0 written to /workspace/builds/worker-8/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] [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" "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] 7c80e1c9bde509b2861102df5e15fc6b66028f38713d3a32403b87beb8663e98
[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" "7c80e1c9bde509b2861102df5e15fc6b66028f38713d3a32403b87beb8663e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c80e1c9bde509b2861102df5e15fc6b66028f38713d3a32403b87beb8663e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c80e1c9bde509b2861102df5e15fc6b66028f38713d3a32403b87beb8663e98", kill_on_drop: false }`
[INFO] [stdout] 7c80e1c9bde509b2861102df5e15fc6b66028f38713d3a32403b87beb8663e98
[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" "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] 8dc67b9cbb2633999a7f03e712473493a0ff01ef7a96cc90f6997aad3435a485
[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" "8dc67b9cbb2633999a7f03e712473493a0ff01ef7a96cc90f6997aad3435a485", kill_on_drop: false }`
[INFO] [stderr]    Compiling almost v0.1.0
[INFO] [stderr]    Compiling chek v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "8dc67b9cbb2633999a7f03e712473493a0ff01ef7a96cc90f6997aad3435a485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc67b9cbb2633999a7f03e712473493a0ff01ef7a96cc90f6997aad3435a485", kill_on_drop: false }`
[INFO] [stdout] 8dc67b9cbb2633999a7f03e712473493a0ff01ef7a96cc90f6997aad3435a485
[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" "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] c19d3232e77bf70ba0bc0c989e1530400f5792faf0ba10f922ac3933b020d77f
[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" "c19d3232e77bf70ba0bc0c989e1530400f5792faf0ba10f922ac3933b020d77f", kill_on_drop: false }`
[INFO] [stderr]    Compiling chek v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "c19d3232e77bf70ba0bc0c989e1530400f5792faf0ba10f922ac3933b020d77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19d3232e77bf70ba0bc0c989e1530400f5792faf0ba10f922ac3933b020d77f", kill_on_drop: false }`
[INFO] [stdout] c19d3232e77bf70ba0bc0c989e1530400f5792faf0ba10f922ac3933b020d77f
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 798b1f19a40b8a505dcdbf1a7ce54298c4c044e713b5502a7efbd8cbbc5ad18f
[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" "798b1f19a40b8a505dcdbf1a7ce54298c4c044e713b5502a7efbd8cbbc5ad18f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chek-13c49bedfca343f7
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chek
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test src/almost_zero.rs - almost_zero_with_tolerance (line 82) ... ok
[INFO] [stdout] test src/ge.rs - debug_greater_or_equal (line 82) ... ok
[INFO] [stdout] test src/almost_zero.rs - debug_almost_zero_with_tolerance (line 111) ... ok
[INFO] [stdout] test src/eq.rs - debug_eq (line 112) ... ok
[INFO] [stdout] test src/almost_zero.rs - debug_almost_zero (line 44) ... ok
[INFO] [stdout] test src/almost_eq.rs - almost_equal (line 15) ... ok
[INFO] [stdout] test src/almost_eq.rs - debug_not_almost_equal (line 113) ... ok
[INFO] [stdout] test src/eq.rs - equal (line 14) ... ok
[INFO] [stdout] test src/almost_zero.rs - almost_zero (line 15) ... ok
[INFO] [stdout] test src/ge.rs - debug_ge (line 118) ... ok
[INFO] [stdout] test src/eq.rs - debug_equal (line 77) ... ok
[INFO] [stdout] test src/almost_eq.rs - not_almost_equal (line 84) ... ok
[INFO] [stdout] test src/eq.rs - eq (line 47) ... ok
[INFO] [stdout] test src/almost_eq.rs - debug_almost_equal (line 44) ... ok
[INFO] [stdout] test src/gt.rs - debug_gt (line 112) ... ok
[INFO] [stdout] test src/gt.rs - debug_greater (line 77) ... ok
[INFO] [stdout] test src/ge.rs - ge (line 51) ... ok
[INFO] [stdout] test src/le.rs - debug_le (line 115) ... ok
[INFO] [stdout] test src/ge.rs - greater_or_equal (line 17) ... ok
[INFO] [stdout] test src/gt.rs - greater (line 14) ... ok
[INFO] [stdout] test src/gt.rs - gt (line 47) ... ok
[INFO] [stdout] test src/le.rs - less_or_equal (line 14) ... ok
[INFO] [stdout] test src/le.rs - debug_less_or_equal (line 79) ... ok
[INFO] [stdout] test src/le.rs - le (line 48) ... ok
[INFO] [stdout] test src/lt.rs - debug_less (line 81) ... ok
[INFO] [stdout] test src/lt.rs - debug_lt (line 120) ... ok
[INFO] [stdout] test src/ne.rs - debug_not_equal (line 80) ... ok
[INFO] [stdout] test src/lt.rs - lt (line 47) ... ok
[INFO] [stdout] test src/ne.rs - ne (line 46) ... ok
[INFO] [stdout] test src/lt.rs - less (line 14) ... ok
[INFO] [stdout] test src/ne.rs - debug_ne (line 119) ... ok
[INFO] [stdout] test src/ne.rs - not_equal (line 14) ... ok
[INFO] [stdout] test src/not_almost_zero.rs - debug_not_almost_zero_with_tolerance (line 111) ... ok
[INFO] [stdout] test src/not_almost_zero.rs - not_almost_zero (line 15) ... ok
[INFO] [stdout] test src/unreachable.rs - debug_unreachable (line 11) ... ok
[INFO] [stdout] test src/not_almost_zero.rs - not_almost_zero_with_tolerance (line 82) ... ok
[INFO] [stdout] test src/not_almost_zero.rs - debug_not_almost_zero (line 44) ... ok
[INFO] [stdout] test src/unreachable.rs - debug_unreachable_unchecked (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "798b1f19a40b8a505dcdbf1a7ce54298c4c044e713b5502a7efbd8cbbc5ad18f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798b1f19a40b8a505dcdbf1a7ce54298c4c044e713b5502a7efbd8cbbc5ad18f", kill_on_drop: false }`
[INFO] [stdout] 798b1f19a40b8a505dcdbf1a7ce54298c4c044e713b5502a7efbd8cbbc5ad18f