[INFO] fetching crate cassowary 0.3.0...
[INFO] checking cassowary-0.3.0 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate cassowary 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate cassowary 0.3.0 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cassowary 0.3.0
[INFO] finished tweaking crates.io crate cassowary 0.3.0
[INFO] tweaked toml for crates.io crate cassowary 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91c1ac360f669638cb9636307fd1fbd1db193442479a261a112bd7556c694374
[INFO] running `Command { std: "docker" "start" "-a" "91c1ac360f669638cb9636307fd1fbd1db193442479a261a112bd7556c694374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91c1ac360f669638cb9636307fd1fbd1db193442479a261a112bd7556c694374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c1ac360f669638cb9636307fd1fbd1db193442479a261a112bd7556c694374", kill_on_drop: false }`
[INFO] [stdout] 91c1ac360f669638cb9636307fd1fbd1db193442479a261a112bd7556c694374
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ce99b1d90ca68e4484ce01226ac3a7b20d767310aae0fb1507d89144aa905e3
[INFO] running `Command { std: "docker" "start" "-a" "7ce99b1d90ca68e4484ce01226ac3a7b20d767310aae0fb1507d89144aa905e3", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking cassowary v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/solver_impl.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             try!(self.add_constraint(constraint.clone()));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         try!(self.optimise(&objective).map_err(|e| AddConstraintError::InternalSolverError(e.0)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:115:17
[INFO] [stdout]     |
[INFO] [stdout] 115 |             if !try!(self.add_with_artificial_variable(&row)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         try!(self.optimise(&objective).map_err(|e| RemoveConstraintError::InternalSolverError(e.0)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:141:19
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let tag = try!(self.cns.remove(constraint).ok_or(RemoveConstraintError::UnknownConstraint));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:151:38
[INFO] [stdout]     |
[INFO] [stdout] 151 |             let (leaving, mut row) = try!(self.get_marker_leaving_row(tag.marker)
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             try!(self.remove_constraint(&constraint)
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |         try!(self.dual_optimise().map_err(|e| SuggestValueError::InternalSolverError(e.0)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:239:24
[INFO] [stdout]     |
[INFO] [stdout] 239 |             let info = try!(self.edits.get_mut(&variable).ok_or(SuggestValueError::UnknownEditVariable));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         try!(self.optimise(&artificial));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:560:38
[INFO] [stdout]     |
[INFO] [stdout] 560 |             let (leaving, mut row) = try!(self.get_leaving_row(entering)
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/lib.rs:235:77
[INFO] [stdout]     |
[INFO] [stdout] 235 | static VARIABLE_ID: ::std::sync::atomic::AtomicUsize = ::std::sync::atomic::ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 235 | static VARIABLE_ID: ::std::sync::atomic::AtomicUsize = ::std::sync::atomic::AtomicUsize::new(0);
[INFO] [stdout]     |                                                                             ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/solver_impl.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             try!(self.add_constraint(constraint.clone()));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         try!(self.optimise(&objective).map_err(|e| AddConstraintError::InternalSolverError(e.0)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:115:17
[INFO] [stdout]     |
[INFO] [stdout] 115 |             if !try!(self.add_with_artificial_variable(&row)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         try!(self.optimise(&objective).map_err(|e| RemoveConstraintError::InternalSolverError(e.0)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:141:19
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let tag = try!(self.cns.remove(constraint).ok_or(RemoveConstraintError::UnknownConstraint));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:151:38
[INFO] [stdout]     |
[INFO] [stdout] 151 |             let (leaving, mut row) = try!(self.get_marker_leaving_row(tag.marker)
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             try!(self.remove_constraint(&constraint)
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |         try!(self.dual_optimise().map_err(|e| SuggestValueError::InternalSolverError(e.0)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:239:24
[INFO] [stdout]     |
[INFO] [stdout] 239 |             let info = try!(self.edits.get_mut(&variable).ok_or(SuggestValueError::UnknownEditVariable));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         try!(self.optimise(&artificial));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/solver_impl.rs:560:38
[INFO] [stdout]     |
[INFO] [stdout] 560 |             let (leaving, mut row) = try!(self.get_leaving_row(entering)
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/lib.rs:235:77
[INFO] [stdout]     |
[INFO] [stdout] 235 | static VARIABLE_ID: ::std::sync::atomic::AtomicUsize = ::std::sync::atomic::ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 235 | static VARIABLE_ID: ::std::sync::atomic::AtomicUsize = ::std::sync::atomic::AtomicUsize::new(0);
[INFO] [stdout]     |                                                                             ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/common/mod.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn new_values() -> (Box<Fn(Variable) -> f64>, Box<Fn(&[(Variable, f64)])>) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn new_values() -> (Box<dyn Fn(Variable) -> f64>, Box<Fn(&[(Variable, f64)])>) {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/common/mod.rs:22:55
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn new_values() -> (Box<Fn(Variable) -> f64>, Box<Fn(&[(Variable, f64)])>) {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn new_values() -> (Box<Fn(Variable) -> f64>, Box<dyn Fn(&[(Variable, f64)])>) {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/common/mod.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn new_values() -> (Box<Fn(Variable) -> f64>, Box<Fn(&[(Variable, f64)])>) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn new_values() -> (Box<dyn Fn(Variable) -> f64>, Box<Fn(&[(Variable, f64)])>) {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/common/mod.rs:22:55
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn new_values() -> (Box<Fn(Variable) -> f64>, Box<Fn(&[(Variable, f64)])>) {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn new_values() -> (Box<Fn(Variable) -> f64>, Box<dyn Fn(&[(Variable, f64)])>) {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "7ce99b1d90ca68e4484ce01226ac3a7b20d767310aae0fb1507d89144aa905e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce99b1d90ca68e4484ce01226ac3a7b20d767310aae0fb1507d89144aa905e3", kill_on_drop: false }`
[INFO] [stdout] 7ce99b1d90ca68e4484ce01226ac3a7b20d767310aae0fb1507d89144aa905e3