[INFO] fetching crate seal 0.1.0...
[INFO] testing seal-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate seal 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate seal 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate seal 0.1.0
[INFO] finished tweaking crates.io crate seal 0.1.0
[INFO] tweaked toml for crates.io crate seal 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8791440cd15e6076d52e9a496e7a48a5b2e0a0d0646537a93ace81de131413be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8791440cd15e6076d52e9a496e7a48a5b2e0a0d0646537a93ace81de131413be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8791440cd15e6076d52e9a496e7a48a5b2e0a0d0646537a93ace81de131413be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8791440cd15e6076d52e9a496e7a48a5b2e0a0d0646537a93ace81de131413be", kill_on_drop: false }`
[INFO] [stdout] 8791440cd15e6076d52e9a496e7a48a5b2e0a0d0646537a93ace81de131413be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 195c1cf9fe982bd291a480373bf249664d016dd441df393cf0be75c71c9ae807
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "195c1cf9fe982bd291a480373bf249664d016dd441df393cf0be75c71c9ae807", kill_on_drop: false }`
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling memmap v0.5.2
[INFO] [stderr]    Compiling seal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/pair/step_mask.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / bitflags! {
[INFO] [stdout] 5  | |     pub flags StepMask: u8 {
[INFO] [stdout] 6  | |         const STOP   = 0b00000000,
[INFO] [stdout] 7  | |         const ALIGN  = 0b00000010,
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/pair/step_mask.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / bitflags! {
[INFO] [stdout] 5  | |     pub flags StepMask: u8 {
[INFO] [stdout] 6  | |         const STOP   = 0b00000000,
[INFO] [stdout] 7  | |         const ALIGN  = 0b00000010,
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/pair/step_mask.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / bitflags! {
[INFO] [stdout] 5  | |     pub flags StepMask: u8 {
[INFO] [stdout] 6  | |         const STOP   = 0b00000000,
[INFO] [stdout] 7  | |         const ALIGN  = 0b00000010,
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/pair/alignment_set.rs:55:58
[INFO] [stdout]    |
[INFO] [stdout] 55 |               let mut last_diagonal = strategy.total_score((strategy.mismatch_score() *
[INFO] [stdout]    |  __________________________________________________________^
[INFO] [stdout] 56 | |                                                           (y as isize)));
[INFO] [stdout]    | |_______________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut last_diagonal = strategy.total_score(strategy.mismatch_score() *
[INFO] [stdout] 56 |                                                           (y as isize));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/pair/alignment_set.rs:57:43
[INFO] [stdout]    |
[INFO] [stdout] 57 |             row[0] = strategy.total_score((strategy.insert_score() * ((y + 1) as isize)));
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/pair/alignment_set.rs:116:49
[INFO] [stdout]     |
[INFO] [stdout] 116 |         (0..width).map(|i| strategy.total_score((strategy.delete_score() * (i as isize)))).collect()
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pair/runs.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut inner = &mut self.inner;
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stdout]   --> src/pair/alignment_matrix.rs:79:26
[INFO] [stdout]    |
[INFO] [stdout] 79 |         self.mut_slice()[self.offset(cursor)] = byte;
[INFO] [stdout]    |         -----------------^^^^----------------
[INFO] [stdout]    |         |                |
[INFO] [stdout]    |         |                immutable borrow occurs here
[INFO] [stdout]    |         mutable borrow occurs here
[INFO] [stdout]    |         mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `seal` due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "195c1cf9fe982bd291a480373bf249664d016dd441df393cf0be75c71c9ae807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "195c1cf9fe982bd291a480373bf249664d016dd441df393cf0be75c71c9ae807", kill_on_drop: false }`
[INFO] [stdout] 195c1cf9fe982bd291a480373bf249664d016dd441df393cf0be75c71c9ae807
