[INFO] fetching crate sterling 1.0.1...
[INFO] testing sterling-1.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate sterling 1.0.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate sterling 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 sterling 1.0.1
[INFO] finished tweaking crates.io crate sterling 1.0.1
[INFO] tweaked toml for crates.io crate sterling 1.0.1 written to /workspace/builds/worker-11/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazysort v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] a7f79b52680914a60f6b9c3ea57a5ceeac1f3f8161503df0ccfe88941fb1c5ba
[INFO] running `Command { std: "docker" "start" "-a" "a7f79b52680914a60f6b9c3ea57a5ceeac1f3f8161503df0ccfe88941fb1c5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7f79b52680914a60f6b9c3ea57a5ceeac1f3f8161503df0ccfe88941fb1c5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f79b52680914a60f6b9c3ea57a5ceeac1f3f8161503df0ccfe88941fb1c5ba", kill_on_drop: false }`
[INFO] [stdout] a7f79b52680914a60f6b9c3ea57a5ceeac1f3f8161503df0ccfe88941fb1c5ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7af774ab32fd7ab916af919d5d4ff7ebf493aaed5cfc251816fa0a934a2e0c52
[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" "7af774ab32fd7ab916af919d5d4ff7ebf493aaed5cfc251816fa0a934a2e0c52", kill_on_drop: false }`
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling lazysort v0.2.1
[INFO] [stderr]    Compiling sterling v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/config.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |             desc: error.description().to_owned(),
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/config.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |             desc: error.description().to_owned(),
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.02s
[INFO] running `Command { std: "docker" "inspect" "7af774ab32fd7ab916af919d5d4ff7ebf493aaed5cfc251816fa0a934a2e0c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af774ab32fd7ab916af919d5d4ff7ebf493aaed5cfc251816fa0a934a2e0c52", kill_on_drop: false }`
[INFO] [stdout] 7af774ab32fd7ab916af919d5d4ff7ebf493aaed5cfc251816fa0a934a2e0c52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53f44c8a96f7e2f3ffeffd1a52f028f151e8e6886f80d66dd3936228aca1e539
[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" "53f44c8a96f7e2f3ffeffd1a52f028f151e8e6886f80d66dd3936228aca1e539", kill_on_drop: false }`
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/config.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |             desc: error.description().to_owned(),
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/config.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |             desc: error.description().to_owned(),
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sterling v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/config.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |             desc: error.description().to_owned(),
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/config.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |             desc: error.description().to_owned(),
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.34s
[INFO] running `Command { std: "docker" "inspect" "53f44c8a96f7e2f3ffeffd1a52f028f151e8e6886f80d66dd3936228aca1e539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53f44c8a96f7e2f3ffeffd1a52f028f151e8e6886f80d66dd3936228aca1e539", kill_on_drop: false }`
[INFO] [stdout] 53f44c8a96f7e2f3ffeffd1a52f028f151e8e6886f80d66dd3936228aca1e539
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74352e7541543fda196371d3bd3bfd5ee2ee6c6cb7fe6ea42e8afa4069777f13
[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" "74352e7541543fda196371d3bd3bfd5ee2ee6c6cb7fe6ea42e8afa4069777f13", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout] running 13 tests
[INFO] [stderr]   --> src/config.rs:80:25
[INFO] [stdout] test convert::tests::test_exchange_currencies ... ok
[INFO] [stderr]    |
[INFO] [stdout] test test::test_get_rates ... ok
[INFO] [stderr] 80 |             desc: error.description().to_owned(),
[INFO] [stdout] test convert::tests::test_calculate_total_copper_value ... ok
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stdout] test test::test_default_operation_plural_output ... ok
[INFO] [stderr]    |
[INFO] [stdout] test test::test_sub_operation_smaller_subtrahend ... ok
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] test test::test_add_operation_diff_currencies ... ok
[INFO] [stderr] 
[INFO] [stdout] test test::test_mul_operation ... ok
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout] test test::test_copper_operation ... ok
[INFO] [stderr]   --> src/config.rs:89:25
[INFO] [stdout] test test::test_add_operation_same_currencies ... ok
[INFO] [stderr]    |
[INFO] [stdout] test test::test_div_operation_odd_dividend ... ok
[INFO] [stderr] 89 |             desc: error.description().to_owned(),
[INFO] [stdout] test test::test_sub_operation_larger_subtrahend ... ok
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stdout] test test::test_div_operation_even_dividend ... ok
[INFO] [stderr] 
[INFO] [stdout] test test::test_default_operation ... ok
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout] 
[INFO] [stderr]   --> src/config.rs:80:25
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 80 |             desc: error.description().to_owned(),
[INFO] [stdout] 
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/config.rs:89:25
[INFO] [stderr]    |
[INFO] [stderr] 89 |             desc: error.description().to_owned(),
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sterling_ops-3e3d36b097e75a55
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sterling-08d533e7ca79f4ac
[INFO] [stderr]    Doc-tests sterling_ops
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] running `Command { std: "docker" "inspect" "74352e7541543fda196371d3bd3bfd5ee2ee6c6cb7fe6ea42e8afa4069777f13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74352e7541543fda196371d3bd3bfd5ee2ee6c6cb7fe6ea42e8afa4069777f13", kill_on_drop: false }`
[INFO] [stdout] 74352e7541543fda196371d3bd3bfd5ee2ee6c6cb7fe6ea42e8afa4069777f13