[INFO] fetching crate stable-block-arena 0.1.0...
[INFO] testing stable-block-arena-0.1.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate stable-block-arena 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate stable-block-arena 0.1.0
[INFO] finished tweaking crates.io crate stable-block-arena 0.1.0
[INFO] tweaked toml for crates.io crate stable-block-arena 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stable-block-arena 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stable-block-arena 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4de76dea23605fe34edd0da265a1bc6f62223f20fa9e544070a2bd42f0d2fd72
[INFO] running `Command { std: "docker" "start" "-a" "4de76dea23605fe34edd0da265a1bc6f62223f20fa9e544070a2bd42f0d2fd72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4de76dea23605fe34edd0da265a1bc6f62223f20fa9e544070a2bd42f0d2fd72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de76dea23605fe34edd0da265a1bc6f62223f20fa9e544070a2bd42f0d2fd72", kill_on_drop: false }`
[INFO] [stdout] 4de76dea23605fe34edd0da265a1bc6f62223f20fa9e544070a2bd42f0d2fd72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c762211857fdfea01bc60ee27c988175f6394ae0b4e95764c14bd222d3a485cd
[INFO] running `Command { std: "docker" "start" "-a" "c762211857fdfea01bc60ee27c988175f6394ae0b4e95764c14bd222d3a485cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable-block-arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `block_size` is never read
[INFO] [stdout]   --> src/arena.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Arena<T> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     block_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "c762211857fdfea01bc60ee27c988175f6394ae0b4e95764c14bd222d3a485cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c762211857fdfea01bc60ee27c988175f6394ae0b4e95764c14bd222d3a485cd", kill_on_drop: false }`
[INFO] [stdout] c762211857fdfea01bc60ee27c988175f6394ae0b4e95764c14bd222d3a485cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fc25bf48ec63a6452f2593b8d50ce6c81b5b55459b2d8eb9b4b06d32172dd5a
[INFO] running `Command { std: "docker" "start" "-a" "0fc25bf48ec63a6452f2593b8d50ce6c81b5b55459b2d8eb9b4b06d32172dd5a", kill_on_drop: false }`
[INFO] [stdout] warning: field `block_size` is never read
[INFO] [stdout]   --> src/arena.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Arena<T> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     block_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stable-block-arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `block_size` is never read
[INFO] [stdout]   --> src/arena.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Arena<T> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     block_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "0fc25bf48ec63a6452f2593b8d50ce6c81b5b55459b2d8eb9b4b06d32172dd5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fc25bf48ec63a6452f2593b8d50ce6c81b5b55459b2d8eb9b4b06d32172dd5a", kill_on_drop: false }`
[INFO] [stdout] 0fc25bf48ec63a6452f2593b8d50ce6c81b5b55459b2d8eb9b4b06d32172dd5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6dddf11abcbb57e5709e9c3a0f5d9a48c9db78f4543c1a3a222ad7c2489c4cc9
[INFO] running `Command { std: "docker" "start" "-a" "6dddf11abcbb57e5709e9c3a0f5d9a48c9db78f4543c1a3a222ad7c2489c4cc9", kill_on_drop: false }`
[INFO] [stderr] warning: field `block_size` is never read
[INFO] [stderr]   --> src/arena.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub struct Arena<T> {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 15 |     block_size: usize,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stable-block-arena` (lib) generated 1 warning
[INFO] [stderr] warning: `stable-block-arena` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stable_block_arena-7b148ee37a999b2b)
[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]    Doc-tests stable_block_arena
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::compact (line 111) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/arena.rs - arena::Arena<T>::compact (line 111) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `stable_vec`
[INFO] [stdout]    --> src/arena.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 | use stable_vec:: StableVec;
[INFO] [stdout]     |     ^^^^^^^^^^ use of unresolved module or unlinked crate `stable_vec`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `stable_vec`, use `cargo add stable_vec` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/arena.rs - arena::Arena<T>::compact (line 111)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.21s; merged doctests compilation took 0.13s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "6dddf11abcbb57e5709e9c3a0f5d9a48c9db78f4543c1a3a222ad7c2489c4cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dddf11abcbb57e5709e9c3a0f5d9a48c9db78f4543c1a3a222ad7c2489c4cc9", kill_on_drop: false }`
[INFO] [stdout] 6dddf11abcbb57e5709e9c3a0f5d9a48c9db78f4543c1a3a222ad7c2489c4cc9
