[INFO] fetching crate cursed-collections 0.6.2...
[INFO] testing cursed-collections-0.6.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate cursed-collections 0.6.2 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate cursed-collections 0.6.2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cursed-collections 0.6.2
[INFO] finished tweaking crates.io crate cursed-collections 0.6.2
[INFO] tweaked toml for crates.io crate cursed-collections 0.6.2 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbe6da1b786a23ef6200838a654feadf19ab00f0e443b5ae3f2c434e7ad4885e
[INFO] running `Command { std: "docker" "start" "-a" "bbe6da1b786a23ef6200838a654feadf19ab00f0e443b5ae3f2c434e7ad4885e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbe6da1b786a23ef6200838a654feadf19ab00f0e443b5ae3f2c434e7ad4885e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe6da1b786a23ef6200838a654feadf19ab00f0e443b5ae3f2c434e7ad4885e", kill_on_drop: false }`
[INFO] [stdout] bbe6da1b786a23ef6200838a654feadf19ab00f0e443b5ae3f2c434e7ad4885e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec36c0c4849ca18f04678cb588db43f808c8d7244e2f9a492f4b2796fc6d5766
[INFO] running `Command { std: "docker" "start" "-a" "ec36c0c4849ca18f04678cb588db43f808c8d7244e2f9a492f4b2796fc6d5766", kill_on_drop: false }`
[INFO] [stderr]    Compiling cursed-collections v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.89s
[INFO] running `Command { std: "docker" "inspect" "ec36c0c4849ca18f04678cb588db43f808c8d7244e2f9a492f4b2796fc6d5766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec36c0c4849ca18f04678cb588db43f808c8d7244e2f9a492f4b2796fc6d5766", kill_on_drop: false }`
[INFO] [stdout] ec36c0c4849ca18f04678cb588db43f808c8d7244e2f9a492f4b2796fc6d5766
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9527d03179068c49d79752df3f747c6730003e7fb68217d80844950665abafe8
[INFO] running `Command { std: "docker" "start" "-a" "9527d03179068c49d79752df3f747c6730003e7fb68217d80844950665abafe8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cursed-collections v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/append_only_vec.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |         &vec[2];
[INFO] [stdout]     |         ^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 217 |         let _ = &vec[2];
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/cursed_collections-1831044a8f07666b)
[INFO] running `Command { std: "docker" "inspect" "9527d03179068c49d79752df3f747c6730003e7fb68217d80844950665abafe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9527d03179068c49d79752df3f747c6730003e7fb68217d80844950665abafe8", kill_on_drop: false }`
[INFO] [stdout] 9527d03179068c49d79752df3f747c6730003e7fb68217d80844950665abafe8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0a620048b7e7e95ad1bbb5e356d4e10c6bf7cf7de40e47b36e3a856a5e79806
[INFO] running `Command { std: "docker" "start" "-a" "b0a620048b7e7e95ad1bbb5e356d4e10c6bf7cf7de40e47b36e3a856a5e79806", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/append_only_vec.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 |         &vec[2];
[INFO] [stderr]     |         ^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 217 |         let _ = &vec[2];
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `cursed-collections` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cursed_collections-1831044a8f07666b)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test append_only_vec::tests::index ... ok
[INFO] [stdout] test append_only_vec::tests::it_works ... ok
[INFO] [stdout] test append_only_vec::tests::len_1 ... ok
[INFO] [stdout] test append_only_vec::tests::len_empty ... ok
[INFO] [stdout] test append_only_vec::tests::len_multiple_segments ... ok
[INFO] [stdout] test lazy_array::tests::it_works ... ok
[INFO] [stdout] test lazy_array::tests::cannot_insert_twice ... ok
[INFO] [stdout] test append_only_vec::tests::references_still_valid_after_another_segment_is_created ... ok
[INFO] [stdout] test append_only_vec::tests::index_out_of_bounds - should panic ... ok
[INFO] [stdout] test lazy_array::tests::cannot_put_out_of_bounds - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cursed-collections
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/append_only_vec.rs - append_only_vec::AppendOnlyVec (line 67) ... ok
[INFO] [stdout] test src/lazy_array.rs - lazy_array::LazyArray (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b0a620048b7e7e95ad1bbb5e356d4e10c6bf7cf7de40e47b36e3a856a5e79806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a620048b7e7e95ad1bbb5e356d4e10c6bf7cf7de40e47b36e3a856a5e79806", kill_on_drop: false }`
[INFO] [stdout] b0a620048b7e7e95ad1bbb5e356d4e10c6bf7cf7de40e47b36e3a856a5e79806