[INFO] fetching crate oprec 0.1.0...
[INFO] testing oprec-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate oprec 0.1.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate oprec 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate oprec 0.1.0
[INFO] finished tweaking crates.io crate oprec 0.1.0
[INFO] tweaked toml for crates.io crate oprec 0.1.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41daf88ce6688d4b794623fbfc6aed0de9150e551b57f4537448b9ff3d1fa088
[INFO] running `Command { std: "docker" "start" "-a" "41daf88ce6688d4b794623fbfc6aed0de9150e551b57f4537448b9ff3d1fa088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41daf88ce6688d4b794623fbfc6aed0de9150e551b57f4537448b9ff3d1fa088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41daf88ce6688d4b794623fbfc6aed0de9150e551b57f4537448b9ff3d1fa088", kill_on_drop: false }`
[INFO] [stdout] 41daf88ce6688d4b794623fbfc6aed0de9150e551b57f4537448b9ff3d1fa088
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4a245bb978ac68711c180de6fa063636d7e63e282f914172fa043126fcaca5f
[INFO] running `Command { std: "docker" "start" "-a" "d4a245bb978ac68711c180de6fa063636d7e63e282f914172fa043126fcaca5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling oprec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:340:63
[INFO] [stdout]     |
[INFO] [stdout] 340 | fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 340 - fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout] 340 + fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<dyn Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:352:59
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 352 - fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stdout] 352 + fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<dyn Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:240:34
[INFO] [stdout]     |
[INFO] [stdout] 240 |     pub fn functify(self) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 240 -     pub fn functify(self) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout] 240 +     pub fn functify(self) -> Box<dyn Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:69:55
[INFO] [stdout]     |
[INFO] [stdout] 69  |               fn is_oprec_method(g: &Ops) -> Result<Box<Fn(f64) -> f64>, Ops> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 | / impl_oprec_method!(
[INFO] [stdout] 332 | |     (sin, Sin), (cos, Cos), (tan, Tan), 
[INFO] [stdout] 333 | |     (asin, Asin), (acos, Acos), (atan, Atan),
[INFO] [stdout] 334 | |     (sinh, Sinh), (cosh, Cosh), (tanh, Tanh),
[INFO] [stdout] ...   |
[INFO] [stdout] 337 | |     (exp, Exp), (ln, Ln), (abs, Abs)
[INFO] [stdout] 338 | | );
[INFO] [stdout]     | |_- in this macro invocation
[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: this warning originates in the macro `impl_oprec_method_intermediate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 69  -             fn is_oprec_method(g: &Ops) -> Result<Box<Fn(f64) -> f64>, Ops> {
[INFO] [stdout] 69  +             fn is_oprec_method(g: &Ops) -> Result<Box<dyn Fn(f64) -> f64>, Ops> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "d4a245bb978ac68711c180de6fa063636d7e63e282f914172fa043126fcaca5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a245bb978ac68711c180de6fa063636d7e63e282f914172fa043126fcaca5f", kill_on_drop: false }`
[INFO] [stdout] d4a245bb978ac68711c180de6fa063636d7e63e282f914172fa043126fcaca5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f6780144c4de12d3daba89ff6507ca0e78ff50544e2d99f751a6af967f9d159
[INFO] running `Command { std: "docker" "start" "-a" "4f6780144c4de12d3daba89ff6507ca0e78ff50544e2d99f751a6af967f9d159", kill_on_drop: false }`
[INFO] [stderr]    Compiling oprec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:340:63
[INFO] [stdout]     |
[INFO] [stdout] 340 | fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 340 - fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout] 340 + fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<dyn Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:352:59
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 352 - fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stdout] 352 + fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<dyn Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:240:34
[INFO] [stdout]     |
[INFO] [stdout] 240 |     pub fn functify(self) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 240 -     pub fn functify(self) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout] 240 +     pub fn functify(self) -> Box<dyn Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:69:55
[INFO] [stdout]     |
[INFO] [stdout] 69  |               fn is_oprec_method(g: &Ops) -> Result<Box<Fn(f64) -> f64>, Ops> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 | / impl_oprec_method!(
[INFO] [stdout] 332 | |     (sin, Sin), (cos, Cos), (tan, Tan), 
[INFO] [stdout] 333 | |     (asin, Asin), (acos, Acos), (atan, Atan),
[INFO] [stdout] 334 | |     (sinh, Sinh), (cosh, Cosh), (tanh, Tanh),
[INFO] [stdout] ...   |
[INFO] [stdout] 337 | |     (exp, Exp), (ln, Ln), (abs, Abs)
[INFO] [stdout] 338 | | );
[INFO] [stdout]     | |_- in this macro invocation
[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: this warning originates in the macro `impl_oprec_method_intermediate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 69  -             fn is_oprec_method(g: &Ops) -> Result<Box<Fn(f64) -> f64>, Ops> {
[INFO] [stdout] 69  +             fn is_oprec_method(g: &Ops) -> Result<Box<dyn Fn(f64) -> f64>, Ops> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:340:63
[INFO] [stdout]     |
[INFO] [stdout] 340 | fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 340 - fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout] 340 + fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<dyn Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:352:59
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 352 - fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stdout] 352 + fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<dyn Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:240:34
[INFO] [stdout]     |
[INFO] [stdout] 240 |     pub fn functify(self) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 240 -     pub fn functify(self) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout] 240 +     pub fn functify(self) -> Box<dyn Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:69:55
[INFO] [stdout]     |
[INFO] [stdout] 69  |               fn is_oprec_method(g: &Ops) -> Result<Box<Fn(f64) -> f64>, Ops> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 | / impl_oprec_method!(
[INFO] [stdout] 332 | |     (sin, Sin), (cos, Cos), (tan, Tan), 
[INFO] [stdout] 333 | |     (asin, Asin), (acos, Acos), (atan, Atan),
[INFO] [stdout] 334 | |     (sinh, Sinh), (cosh, Cosh), (tanh, Tanh),
[INFO] [stdout] ...   |
[INFO] [stdout] 337 | |     (exp, Exp), (ln, Ln), (abs, Abs)
[INFO] [stdout] 338 | | );
[INFO] [stdout]     | |_- in this macro invocation
[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: this warning originates in the macro `impl_oprec_method_intermediate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 69  -             fn is_oprec_method(g: &Ops) -> Result<Box<Fn(f64) -> f64>, Ops> {
[INFO] [stdout] 69  +             fn is_oprec_method(g: &Ops) -> Result<Box<dyn Fn(f64) -> f64>, Ops> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "4f6780144c4de12d3daba89ff6507ca0e78ff50544e2d99f751a6af967f9d159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f6780144c4de12d3daba89ff6507ca0e78ff50544e2d99f751a6af967f9d159", kill_on_drop: false }`
[INFO] [stdout] 4f6780144c4de12d3daba89ff6507ca0e78ff50544e2d99f751a6af967f9d159
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7729f9b13845bbead96f0ed258e50ee1882811c143820d46117b866af9a2ca8d
[INFO] running `Command { std: "docker" "start" "-a" "7729f9b13845bbead96f0ed258e50ee1882811c143820d46117b866af9a2ca8d", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:340:63
[INFO] [stderr]     |
[INFO] [stderr] 340 | fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 340 - fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stderr] 340 + fn oprec_to_function_check(x: &OpRec, last: NodeIndex) -> Box<dyn Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[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] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:352:59
[INFO] [stderr]     |
[INFO] [stderr] 352 | fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 352 - fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stderr] 352 + fn oprec_to_function(rec: &OpRec, last: NodeIndex) -> Box<dyn Fn(HashMap<u64, f64>) -> f64> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:240:34
[INFO] [stderr]     |
[INFO] [stderr] 240 |     pub fn functify(self) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 240 -     pub fn functify(self) -> Box<Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stderr] 240 +     pub fn functify(self) -> Box<dyn Fn(HashMap<u64, f64>) -> Result<f64, u64>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:69:55
[INFO] [stderr]     |
[INFO] [stderr] 69  |               fn is_oprec_method(g: &Ops) -> Result<Box<Fn(f64) -> f64>, Ops> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 331 | / impl_oprec_method!(
[INFO] [stderr] 332 | |     (sin, Sin), (cos, Cos), (tan, Tan), 
[INFO] [stderr] 333 | |     (asin, Asin), (acos, Acos), (atan, Atan),
[INFO] [stderr] 334 | |     (sinh, Sinh), (cosh, Cosh), (tanh, Tanh),
[INFO] [stderr] ...   |
[INFO] [stderr] 337 | |     (exp, Exp), (ln, Ln), (abs, Abs)
[INFO] [stderr] 338 | | );
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `impl_oprec_method_intermediate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 69  -             fn is_oprec_method(g: &Ops) -> Result<Box<Fn(f64) -> f64>, Ops> {
[INFO] [stderr] 69  +             fn is_oprec_method(g: &Ops) -> Result<Box<dyn Fn(f64) -> f64>, Ops> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `oprec` (lib) generated 4 warnings
[INFO] [stderr] warning: `oprec` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/oprec-498c325ba06cf918)
[INFO] [stderr]    Doc-tests oprec
[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] running `Command { std: "docker" "inspect" "7729f9b13845bbead96f0ed258e50ee1882811c143820d46117b866af9a2ca8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7729f9b13845bbead96f0ed258e50ee1882811c143820d46117b866af9a2ca8d", kill_on_drop: false }`
[INFO] [stdout] 7729f9b13845bbead96f0ed258e50ee1882811c143820d46117b866af9a2ca8d