[INFO] fetching crate sparrow 0.1.0...
[INFO] testing sparrow-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate sparrow 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate sparrow 0.1.0
[INFO] finished tweaking crates.io crate sparrow 0.1.0
[INFO] tweaked toml for crates.io crate sparrow 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sparrow 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sparrow 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.50
[INFO] [stderr]   Downloaded rstest v0.6.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f08528f154cc06745ca70593c1d00ca361f3022d9c220e90985a92e678c15205
[INFO] running `Command { std: "docker" "start" "-a" "f08528f154cc06745ca70593c1d00ca361f3022d9c220e90985a92e678c15205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f08528f154cc06745ca70593c1d00ca361f3022d9c220e90985a92e678c15205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f08528f154cc06745ca70593c1d00ca361f3022d9c220e90985a92e678c15205", kill_on_drop: false }`
[INFO] [stdout] f08528f154cc06745ca70593c1d00ca361f3022d9c220e90985a92e678c15205
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c668c5b426b5d32d434901013742726d136b11177d668c04eb458f8b7cac9251
[INFO] running `Command { std: "docker" "start" "-a" "c668c5b426b5d32d434901013742726d136b11177d668c04eb458f8b7cac9251", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling sparrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cli/mod.rs:27:23
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn new(engine: &'_ mut core::Sparrow) -> Cli {
[INFO] [stdout]    |                       ^^                       --- the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn new(engine: &'_ mut core::Sparrow) -> Cli<'_> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.86s
[INFO] running `Command { std: "docker" "inspect" "c668c5b426b5d32d434901013742726d136b11177d668c04eb458f8b7cac9251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c668c5b426b5d32d434901013742726d136b11177d668c04eb458f8b7cac9251", kill_on_drop: false }`
[INFO] [stdout] c668c5b426b5d32d434901013742726d136b11177d668c04eb458f8b7cac9251
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a17c842139ed2b07593ec99b6dd74fab1457526df508393d3077aee36e6bdad8
[INFO] running `Command { std: "docker" "start" "-a" "a17c842139ed2b07593ec99b6dd74fab1457526df508393d3077aee36e6bdad8", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cli/mod.rs:27:23
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn new(engine: &'_ mut core::Sparrow) -> Cli {
[INFO] [stdout]    |                       ^^                       --- the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn new(engine: &'_ mut core::Sparrow) -> Cli<'_> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rstest v0.6.4
[INFO] [stderr]    Compiling sparrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cli/mod.rs:27:23
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn new(engine: &'_ mut core::Sparrow) -> Cli {
[INFO] [stdout]    |                       ^^                       --- the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn new(engine: &'_ mut core::Sparrow) -> Cli<'_> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.96s
[INFO] running `Command { std: "docker" "inspect" "a17c842139ed2b07593ec99b6dd74fab1457526df508393d3077aee36e6bdad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a17c842139ed2b07593ec99b6dd74fab1457526df508393d3077aee36e6bdad8", kill_on_drop: false }`
[INFO] [stdout] a17c842139ed2b07593ec99b6dd74fab1457526df508393d3077aee36e6bdad8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cfc4c53aa3aa71b131cfbad580ca5e24d913316f0047557bd979bbfb52777e25
[INFO] running `Command { std: "docker" "start" "-a" "cfc4c53aa3aa71b131cfbad580ca5e24d913316f0047557bd979bbfb52777e25", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/cli/mod.rs:27:23
[INFO] [stderr]    |
[INFO] [stderr] 27 |   pub fn new(engine: &'_ mut core::Sparrow) -> Cli {
[INFO] [stderr]    |                       ^^                       --- the same lifetime is hidden here
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 27 |   pub fn new(engine: &'_ mut core::Sparrow) -> Cli<'_> {
[INFO] [stderr]    |                                                   ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `sparrow` (lib) generated 1 warning
[INFO] [stderr] warning: `sparrow` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sparrow-62106b5cdd4ccd75)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test core::egg::tests::test_egg_new ... ok
[INFO] [stdout] test core::nest::tests::test_nest_get ... ok
[INFO] [stdout] test core::nest::tests::test_nest_new ... ok
[INFO] [stdout] test core::nest::tests::test_nest_pop ... ok
[INFO] [stdout] test core::nest::tests::test_nest_insert ... ok
[INFO] [stdout] test core::nest::tests::test_new_nest ... ok
[INFO] [stdout] test core::egg::tests::test_egg_display_impl ... ok
[INFO] [stdout] test core::sparrow::tests::test_sparrow_get ... ok
[INFO] [stdout] test core::sparrow::tests::test_sparrow_insert ... ok
[INFO] [stdout] test core::sparrow::tests::test_sparrow_new ... ok
[INFO] [stdout] test core::sparrow::tests::test_sparrow_pop ... ok
[INFO] [stdout] test core::egg::tests::test_egg_getters ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sparrow-f190896a11f4f9e8)
[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] [stderr]    Doc-tests sparrow
[INFO] [stdout] 
[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" "cfc4c53aa3aa71b131cfbad580ca5e24d913316f0047557bd979bbfb52777e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfc4c53aa3aa71b131cfbad580ca5e24d913316f0047557bd979bbfb52777e25", kill_on_drop: false }`
[INFO] [stdout] cfc4c53aa3aa71b131cfbad580ca5e24d913316f0047557bd979bbfb52777e25