[INFO] fetching crate twobit 0.2.1...
[INFO] building twobit-0.2.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate twobit 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate twobit 0.2.1
[INFO] finished tweaking crates.io crate twobit 0.2.1
[INFO] tweaked toml for crates.io crate twobit 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twobit 0.2.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a0dfc42484df58cd3546e4dbd1f90ae0af6940ef2c8a1cc2a515227d0253a3b
[INFO] running `Command { std: "docker" "start" "-a" "9a0dfc42484df58cd3546e4dbd1f90ae0af6940ef2c8a1cc2a515227d0253a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a0dfc42484df58cd3546e4dbd1f90ae0af6940ef2c8a1cc2a515227d0253a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a0dfc42484df58cd3546e4dbd1f90ae0af6940ef2c8a1cc2a515227d0253a3b", kill_on_drop: false }`
[INFO] [stdout] 9a0dfc42484df58cd3546e4dbd1f90ae0af6940ef2c8a1cc2a515227d0253a3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b05908920d55004b7f960275f3aa1a5967e56dabe32870792de88da72fbd97cc
[INFO] running `Command { std: "docker" "start" "-a" "b05908920d55004b7f960275f3aa1a5967e56dabe32870792de88da72fbd97cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling twobit v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/convert/mod.rs:72:45
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn sequence_lengths(&'a self) -> Result<&[SequenceLength], Box<dyn std::error::Error>>;
[INFO] [stdout]    |                          --                 ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[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] 72 |     fn sequence_lengths(&'a self) -> Result<&'a [SequenceLength], Box<dyn std::error::Error>>;
[INFO] [stdout]    |                                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "b05908920d55004b7f960275f3aa1a5967e56dabe32870792de88da72fbd97cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b05908920d55004b7f960275f3aa1a5967e56dabe32870792de88da72fbd97cc", kill_on_drop: false }`
[INFO] [stdout] b05908920d55004b7f960275f3aa1a5967e56dabe32870792de88da72fbd97cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e55b161493694fa9c13b69ed9e4ebfb1f4f716c43f4423a302f480a9336c552a
[INFO] running `Command { std: "docker" "start" "-a" "e55b161493694fa9c13b69ed9e4ebfb1f4f716c43f4423a302f480a9336c552a", kill_on_drop: false }`
[INFO] [stderr]    Compiling twobit v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/convert/mod.rs:72:45
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn sequence_lengths(&'a self) -> Result<&[SequenceLength], Box<dyn std::error::Error>>;
[INFO] [stdout]    |                          --                 ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[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] 72 |     fn sequence_lengths(&'a self) -> Result<&'a [SequenceLength], Box<dyn std::error::Error>>;
[INFO] [stdout]    |                                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/convert/mod.rs:72:45
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn sequence_lengths(&'a self) -> Result<&[SequenceLength], Box<dyn std::error::Error>>;
[INFO] [stdout]    |                          --                 ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[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] 72 |     fn sequence_lengths(&'a self) -> Result<&'a [SequenceLength], Box<dyn std::error::Error>>;
[INFO] [stdout]    |                                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "e55b161493694fa9c13b69ed9e4ebfb1f4f716c43f4423a302f480a9336c552a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e55b161493694fa9c13b69ed9e4ebfb1f4f716c43f4423a302f480a9336c552a", kill_on_drop: false }`
[INFO] [stdout] e55b161493694fa9c13b69ed9e4ebfb1f4f716c43f4423a302f480a9336c552a