[INFO] fetching crate flips 0.2.1...
[INFO] testing flips-0.2.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate flips 0.2.1 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate flips 0.2.1 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flips 0.2.1
[INFO] finished tweaking crates.io crate flips 0.2.1
[INFO] tweaked toml for crates.io crate flips 0.2.1 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flips-sys v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 778fe5ad356df26cfefa1cd6c23fd083767b2376958d30c87323bd49b1d3ce68
[INFO] running `Command { std: "docker" "start" "-a" "778fe5ad356df26cfefa1cd6c23fd083767b2376958d30c87323bd49b1d3ce68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "778fe5ad356df26cfefa1cd6c23fd083767b2376958d30c87323bd49b1d3ce68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "778fe5ad356df26cfefa1cd6c23fd083767b2376958d30c87323bd49b1d3ce68", kill_on_drop: false }`
[INFO] [stdout] 778fe5ad356df26cfefa1cd6c23fd083767b2376958d30c87323bd49b1d3ce68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 639763a866a6d4037144b0bab09edfb784258792e520282f678431235e54fc83
[INFO] running `Command { std: "docker" "start" "-a" "639763a866a6d4037144b0bab09edfb784258792e520282f678431235e54fc83", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling flips-sys v0.2.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling flips v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/bps.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     metadata: Option<FlipsMemory>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 8.01s
[INFO] running `Command { std: "docker" "inspect" "639763a866a6d4037144b0bab09edfb784258792e520282f678431235e54fc83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "639763a866a6d4037144b0bab09edfb784258792e520282f678431235e54fc83", kill_on_drop: false }`
[INFO] [stdout] 639763a866a6d4037144b0bab09edfb784258792e520282f678431235e54fc83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738e084ea5456624f37cb3b224f18f8ebca0fa4dc5c06afd71e5a3cf98a76592
[INFO] running `Command { std: "docker" "start" "-a" "738e084ea5456624f37cb3b224f18f8ebca0fa4dc5c06afd71e5a3cf98a76592", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling flips v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/bps.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     metadata: Option<FlipsMemory>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/bps.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     metadata: Option<FlipsMemory>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 2.04s
[INFO] running `Command { std: "docker" "inspect" "738e084ea5456624f37cb3b224f18f8ebca0fa4dc5c06afd71e5a3cf98a76592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738e084ea5456624f37cb3b224f18f8ebca0fa4dc5c06afd71e5a3cf98a76592", kill_on_drop: false }`
[INFO] [stdout] 738e084ea5456624f37cb3b224f18f8ebca0fa4dc5c06afd71e5a3cf98a76592
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4809940686d15c4f3eac2e82ae4921effa3f14e46f6bdad2347ce4c0a6c542be
[INFO] running `Command { std: "docker" "start" "-a" "4809940686d15c4f3eac2e82ae4921effa3f14e46f6bdad2347ce4c0a6c542be", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `metadata`
[INFO] [stderr]   --> src/bps.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     metadata: Option<FlipsMemory>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `flips` (lib) generated 1 warning
[INFO] [stderr] warning: `flips` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flips-a3e45e3fc7d19465)
[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] [stderr]      Running tests/test_bps.rs (/opt/rustwide/target/debug/deps/test_bps-9252e907ffba3aec)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test delta::test_create_missing_arguments ... ok
[INFO] [stdout] test linear::test_create_missing_arguments ... ok
[INFO] [stdout] test linear::test_create_apply ... ok
[INFO] [stdout] test test_apply_invalid ... ok
[INFO] [stdout] test linear::test_create_identical ... ok
[INFO] [stdout] test delta::test_create_apply ... ok
[INFO] [stdout] test test_apply_correct ... ok
[INFO] [stdout] test delta::test_create_apply_with_moremem ... ok
[INFO] [stdout] test test_apply_to_output ... ok
[INFO] [stdout] test test_apply_not_this ... ok
[INFO] [stderr]      Running tests/test_ips.rs (/opt/rustwide/target/debug/deps/test_ips-956c830880f94f92)
[INFO] [stdout] test delta::test_create_identical ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_apply_correct ... ok
[INFO] [stdout] test test_apply_invalid ... ok
[INFO] [stdout] test test_study_invalid ... ok
[INFO] [stdout] test test_study_apply_to_output ... ok
[INFO] [stdout] test test_create_missing_arguments ... ok
[INFO] [stdout] test test_create_identical ... ok
[INFO] [stdout] test test_apply_to_output ... ok
[INFO] [stdout] test test_study_apply_correct ... ok
[INFO] [stdout] test test_create_apply ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_ups.rs (/opt/rustwide/target/debug/deps/test_ups-087ba44831c15608)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_apply_correct ... ok
[INFO] [stdout] test test_apply_invalid ... ok
[INFO] [stdout] test test_apply_not_this ... ok
[INFO] [stdout] test test_apply_to_output ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flips
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/bps.rs - bps::BpsDeltaBuilder (line 193) ... ok
[INFO] [stdout] test src/bps.rs - bps::BpsLinearBuilder (line 101) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4809940686d15c4f3eac2e82ae4921effa3f14e46f6bdad2347ce4c0a6c542be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4809940686d15c4f3eac2e82ae4921effa3f14e46f6bdad2347ce4c0a6c542be", kill_on_drop: false }`
[INFO] [stdout] 4809940686d15c4f3eac2e82ae4921effa3f14e46f6bdad2347ce4c0a6c542be