[INFO] fetching crate seq 0.5.0...
[INFO] testing seq-0.5.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate seq 0.5.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate seq 0.5.0
[INFO] finished tweaking crates.io crate seq 0.5.0
[INFO] tweaked toml for crates.io crate seq 0.5.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate seq 0.5.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03e88ea3307d69cd2920c249288edbae8b53b06d225bdaf2f6788fa9ba6fe997
[INFO] running `Command { std: "docker" "start" "-a" "03e88ea3307d69cd2920c249288edbae8b53b06d225bdaf2f6788fa9ba6fe997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03e88ea3307d69cd2920c249288edbae8b53b06d225bdaf2f6788fa9ba6fe997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03e88ea3307d69cd2920c249288edbae8b53b06d225bdaf2f6788fa9ba6fe997", kill_on_drop: false }`
[INFO] [stdout] 03e88ea3307d69cd2920c249288edbae8b53b06d225bdaf2f6788fa9ba6fe997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1115dccf6b9cc8aec38750d0dd9d39bbfa0dca29201ff06378aa72c6c3da1e1e
[INFO] running `Command { std: "docker" "start" "-a" "1115dccf6b9cc8aec38750d0dd9d39bbfa0dca29201ff06378aa72c6c3da1e1e", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling seq v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:150:41
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn tail(&'a self) -> Option<&'a Seq<T>> {
[INFO] [stdout]     |                  --                  -- ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |                   |
[INFO] [stdout]     |                  |                   the same lifetime is named here
[INFO] [stdout]     |                  the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn tail(&'a self) -> Option<&'a Seq<'a, T>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "1115dccf6b9cc8aec38750d0dd9d39bbfa0dca29201ff06378aa72c6c3da1e1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1115dccf6b9cc8aec38750d0dd9d39bbfa0dca29201ff06378aa72c6c3da1e1e", kill_on_drop: false }`
[INFO] [stdout] 1115dccf6b9cc8aec38750d0dd9d39bbfa0dca29201ff06378aa72c6c3da1e1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b09df6b820c593ea1ac3896ce3a1ab6b4a1430dbd931df54014466f31379fa4
[INFO] running `Command { std: "docker" "start" "-a" "4b09df6b820c593ea1ac3896ce3a1ab6b4a1430dbd931df54014466f31379fa4", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:150:41
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn tail(&'a self) -> Option<&'a Seq<T>> {
[INFO] [stdout]     |                  --                  -- ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |                   |
[INFO] [stdout]     |                  |                   the same lifetime is named here
[INFO] [stdout]     |                  the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn tail(&'a self) -> Option<&'a Seq<'a, T>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling seq v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:150:41
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn tail(&'a self) -> Option<&'a Seq<T>> {
[INFO] [stdout]     |                  --                  -- ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |                   |
[INFO] [stdout]     |                  |                   the same lifetime is named here
[INFO] [stdout]     |                  the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn tail(&'a self) -> Option<&'a Seq<'a, T>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "4b09df6b820c593ea1ac3896ce3a1ab6b4a1430dbd931df54014466f31379fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b09df6b820c593ea1ac3896ce3a1ab6b4a1430dbd931df54014466f31379fa4", kill_on_drop: false }`
[INFO] [stdout] 4b09df6b820c593ea1ac3896ce3a1ab6b4a1430dbd931df54014466f31379fa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b731d374bd4695b360db887174b23cc9cf881b4af6d462d325f01d093645ff3e
[INFO] running `Command { std: "docker" "start" "-a" "b731d374bd4695b360db887174b23cc9cf881b4af6d462d325f01d093645ff3e", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:150:41
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn tail(&'a self) -> Option<&'a Seq<T>> {
[INFO] [stderr]     |                  --                  -- ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                  |                   |
[INFO] [stderr]     |                  |                   the same lifetime is named here
[INFO] [stderr]     |                  the lifetime is named 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: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn tail(&'a self) -> Option<&'a Seq<'a, T>> {
[INFO] [stderr]     |                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: `seq` (lib) generated 1 warning (run `cargo fix --lib -p seq` to apply 1 suggestion)
[INFO] [stderr] warning: `seq` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/seq-1b0817b64ecdfe8a)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::test_box_struct ... ok
[INFO] [stdout] test tests::test_consref ... ok
[INFO] [stdout] test tests::test_empty ... ok
[INFO] [stdout] test tests::test_head_tail ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] test tests::test_iter_boxed ... ok
[INFO] [stdout] test tests::test_macro ... ok
[INFO] [stdout] test tests::test_match ... ok
[INFO] [stdout] test tests::test_printformat ... ok
[INFO] [stdout] test tests::test_box ... ok
[INFO] [stdout] test tests::test_shared ... ok
[INFO] [stdout] test tests::test_recursion ... 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]    Doc-tests seq
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/lib.rs - Seq (line 101) ... ok
[INFO] [stdout] test src/lib.rs - Seq (line 109) ... ok
[INFO] [stdout] test src/lib.rs - (line 44) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/lib.rs - Seq (line 93) ... ok
[INFO] [stdout] test src/lib.rs - (line 52) ... ok
[INFO] [stdout] test src/lib.rs - (line 60) ... ok
[INFO] [stdout] test src/lib.rs - Seq (line 117) ... ok
[INFO] [stdout] test src/lib.rs - Seq (line 84) ... ok
[INFO] [stdout] test src/lib.rs - &'aSeq<'a,T> (line 233) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.80s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b731d374bd4695b360db887174b23cc9cf881b4af6d462d325f01d093645ff3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b731d374bd4695b360db887174b23cc9cf881b4af6d462d325f01d093645ff3e", kill_on_drop: false }`
[INFO] [stdout] b731d374bd4695b360db887174b23cc9cf881b4af6d462d325f01d093645ff3e
