[INFO] fetching crate order-stat 0.1.3...
[INFO] testing order-stat-0.1.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate order-stat 0.1.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate order-stat 0.1.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate order-stat 0.1.3
[INFO] finished tweaking crates.io crate order-stat 0.1.3
[INFO] tweaked toml for crates.io crate order-stat 0.1.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f4b89ded0dca46d2d44990f7979b7584ad73e426d5085d28e7898ea7ebab7c6
[INFO] running `Command { std: "docker" "start" "-a" "3f4b89ded0dca46d2d44990f7979b7584ad73e426d5085d28e7898ea7ebab7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f4b89ded0dca46d2d44990f7979b7584ad73e426d5085d28e7898ea7ebab7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f4b89ded0dca46d2d44990f7979b7584ad73e426d5085d28e7898ea7ebab7c6", kill_on_drop: false }`
[INFO] [stdout] 3f4b89ded0dca46d2d44990f7979b7584ad73e426d5085d28e7898ea7ebab7c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b00ee70b49fd22ac4ca0f47d40cd7e4b7b1aa74a8ea000090c321d0fe904bb83
[INFO] running `Command { std: "docker" "start" "-a" "b00ee70b49fd22ac4ca0f47d40cd7e4b7b1aa74a8ea000090c321d0fe904bb83", kill_on_drop: false }`
[INFO] [stderr]    Compiling order-stat v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]   --> src/mom.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::{cmp, mem};
[INFO] [stdout]    |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 84 |     use std::mem;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "b00ee70b49fd22ac4ca0f47d40cd7e4b7b1aa74a8ea000090c321d0fe904bb83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b00ee70b49fd22ac4ca0f47d40cd7e4b7b1aa74a8ea000090c321d0fe904bb83", kill_on_drop: false }`
[INFO] [stdout] b00ee70b49fd22ac4ca0f47d40cd7e4b7b1aa74a8ea000090c321d0fe904bb83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c4b8672add918d07afffe2973642a6b4fbf31f0dfaa4e8684e4f021bcd266bc
[INFO] running `Command { std: "docker" "start" "-a" "8c4b8672add918d07afffe2973642a6b4fbf31f0dfaa4e8684e4f021bcd266bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling quickcheck v0.2.27
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]   --> src/mom.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::{cmp, mem};
[INFO] [stdout]    |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 84 |     use std::mem;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling order-stat v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]   --> src/mom.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::{cmp, mem};
[INFO] [stdout]    |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 84 |     use std::mem;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.22s
[INFO] running `Command { std: "docker" "inspect" "8c4b8672add918d07afffe2973642a6b4fbf31f0dfaa4e8684e4f021bcd266bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c4b8672add918d07afffe2973642a6b4fbf31f0dfaa4e8684e4f021bcd266bc", kill_on_drop: false }`
[INFO] [stdout] 8c4b8672add918d07afffe2973642a6b4fbf31f0dfaa4e8684e4f021bcd266bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b13d8eea540e9b643036411f1927369dcc41273deebdcdc286e51ab7b4648de5
[INFO] running `Command { std: "docker" "start" "-a" "b13d8eea540e9b643036411f1927369dcc41273deebdcdc286e51ab7b4648de5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]   --> src/mom.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::{cmp, mem};
[INFO] [stderr]    |                --- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 84 |     use std::mem;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `order-stat` (lib) generated 1 warning
[INFO] [stderr] warning: `order-stat` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/order_stat-242ef1ae8e54863e)
[INFO] [stdout] running 10 tests
[INFO] [stdout] test mom::tests::include_trailing ... ok
[INFO] [stdout] test floyd_rivest::tests::smoke ... ok
[INFO] [stdout] test quickselect::tests::smoke ... ok
[INFO] [stdout] test mom::tests::smoke ... ok
[INFO] [stdout] test mom::tests::correct_sortings ... ok
[INFO] [stdout] test floyd_rivest::tests::huge ... ok
[INFO] [stdout] test mom::tests::qc ... ok
[INFO] [stdout] test quickselect::tests::qc ... ok
[INFO] [stdout] test quickselect::tests::huge ... ok
[INFO] [stdout] test floyd_rivest::tests::qc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests order-stat
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - kth (line 103) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/lib.rs - kth_by (line 182) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] test src/lib.rs - (line 64) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] test src/mom.rs - mom::median_of_medians (line 19) ... ok
[INFO] [stdout] test src/lib.rs - kth (line 147) ... ok
[INFO] [stdout] test src/lib.rs - kth (line 137) ... ok
[INFO] [stdout] test src/mom.rs - mom::median_of_medians_by (line 45) ... ok
[INFO] [stdout] test src/lib.rs - (line 54) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.84s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b13d8eea540e9b643036411f1927369dcc41273deebdcdc286e51ab7b4648de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b13d8eea540e9b643036411f1927369dcc41273deebdcdc286e51ab7b4648de5", kill_on_drop: false }`
[INFO] [stdout] b13d8eea540e9b643036411f1927369dcc41273deebdcdc286e51ab7b4648de5