[INFO] cloning repository https://github.com/adamAndMath/AlgebraicManipulatorRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamAndMath/AlgebraicManipulatorRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FadamAndMath%2FAlgebraicManipulatorRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FadamAndMath%2FAlgebraicManipulatorRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04fd0cd94dd8caa97d6b2b7bb934b768f39b5a66
[INFO] checking adamAndMath/AlgebraicManipulatorRust against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FadamAndMath%2FAlgebraicManipulatorRust" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamAndMath/AlgebraicManipulatorRust on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adamAndMath/AlgebraicManipulatorRust
[INFO] finished tweaking git repo https://github.com/adamAndMath/AlgebraicManipulatorRust
[INFO] tweaked toml for git repo https://github.com/adamAndMath/AlgebraicManipulatorRust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/adamAndMath/AlgebraicManipulatorRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a29b5e069ed2bf776be53e5d7acd7a9e354895bde0b5bc2bc4420341e61c8736
[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" "a29b5e069ed2bf776be53e5d7acd7a9e354895bde0b5bc2bc4420341e61c8736", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a29b5e069ed2bf776be53e5d7acd7a9e354895bde0b5bc2bc4420341e61c8736", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a29b5e069ed2bf776be53e5d7acd7a9e354895bde0b5bc2bc4420341e61c8736", kill_on_drop: false }`
[INFO] [stdout] a29b5e069ed2bf776be53e5d7acd7a9e354895bde0b5bc2bc4420341e61c8736
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0a7a58f28b6865e14f76436df56d0f73681db577476114fa9d36e2470605339
[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" "e0a7a58f28b6865e14f76436df56d0f73681db577476114fa9d36e2470605339", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]     Checking pest v2.0.1
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling pest_meta v2.0.3
[INFO] [stderr]    Compiling pest_generator v2.0.0
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]     Checking algebra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:34:40
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn parse<'f, T: Parse<'f>>(pairs: &mut Iterator<Item = Pair<'f>>) -> T {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Pair<'f>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:38:44
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn parse_vec<'f, T: Parse<'f>>(pairs: &mut Iterator<Item = Pair<'f>>) -> Vec<T> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Pair<'f>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/macros/id/ty.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / macro_rules! type_id {
[INFO] [stdout] 2 | |     ($t:ident) => (TypeID::Gen($t.clone(), vec!()));
[INFO] [stdout] 3 | |     ($t:ident[$($g:tt)*]) => (TypeID::Gen($t.clone(), type_id_vec!($($g)*)));
[INFO] [stdout] 4 | |     (($($p:tt)*)) => (type_id_tuple!($($p)*));
[INFO] [stdout] 5 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/macros/id/ty.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / macro_rules! type_id_vec {
[INFO] [stdout] 8 | |     ($($($t:ident)*$([$($g:tt)*])*$(($($p:tt)*))*),*) => (vec![$(type_id!($($t)*$([$($g)*])*$(($($p)*))*)),*]);
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/macros/id/ty.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / macro_rules! type_id_tuple {
[INFO] [stdout] 12 | |     ($($t:ident)*$([$($g:tt)*])*$(($($p:tt)*))*) => (type_id!($($t)*$([$($g)*])*$(($($p)*))*));
[INFO] [stdout] 13 | |     ($($($t:ident)*$([$($g:tt)*])*$(($($p:tt)*))*),*) => (TypeID::Tuple(vec![$(type_id!($($t)*$([$($g)*])*$(($($p)*))*)),*]));
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/macros/id/pattern.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / macro_rules! pattern_id {
[INFO] [stdout] 2 | |     (+$($t:ident)*$([$($g:tt)*])*$(($($p:tt)*))*) => (PatternID::Var(type_id!($($t)*$([$($g)*])*$(($($p)*))*)));
[INFO] [stdout] 3 | |     ($a:ident) => (PatternID::Atom($a.clone(), vec![]));
[INFO] [stdout] 4 | |     ($a:ident[$($g:tt)*]) => (PatternID::Atom($a.clone(), type_id_vec!($($g)*)));
[INFO] [stdout] ... |
[INFO] [stdout] 7 | |     (($($t:tt)*)) => (pattern_id_tuple!(() $($t)*,));
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/macros/id/pattern.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / macro_rules! pattern_id_tuple {
[INFO] [stdout] 11 | |     ((pattern_id!($($e:tt)*), )$(,)* ) => (pattern_id!($($e)*));
[INFO] [stdout] 12 | |     (($($v:tt)*), ) => (PatternID::Tuple(vec!($($v)*)));
[INFO] [stdout] 13 | |     (($($v:tt)*) +$($t:ident)*$([$($g:tt)*])*$(($($p:tt)*))*, $($rest:tt)*) => (pattern_id_tuple!(($($v)* pattern_id!(+$($t)*$([$($g)*])*...
[INFO] [stdout] 14 | |     (($($v:tt)*) $($x:ident)*$([$($g:tt)*])*$(($($p:tt)*))*, $($rest:tt)*) => (pattern_id_tuple!(($($v)* pattern_id!($($x)*$([$g])*$(($($...
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/macros/id/exp.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / macro_rules! exp_id {
[INFO] [stdout] 2 | |     ($x:ident) => (ExpID::Var($x, vec![]));
[INFO] [stdout] 3 | |     ($x:ident[$($g:tt)*]) => (ExpID::Var($x, type_id_vec!($($g)*)));
[INFO] [stdout] 4 | |     ($x:ident$([$($g:tt)*])*($($p:tt)*)) => (ExpID::Call(Box::new(exp_id!($x$([$($g)*])*)), Box::new(exp_id_tuple!($($p)*))));
[INFO] [stdout] 5 | |     (($($p:tt)*)) => (exp_id_tuple!($($p)*));
[INFO] [stdout] 6 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/macros/id/exp.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / macro_rules! exp_id_tuple {
[INFO] [stdout] 9  | |     ($($x:ident)*$([$($g:tt)*])*$(($($p:tt)*))*) => (exp_id!($($x)*$([$($g)*])*$(($($p)*))*));
[INFO] [stdout] 10 | |     ($($($x:ident)*$([$($g:tt)*])*$(($($p:tt)*))*),*) => (ExpID::Tuple(vec![$(exp_id!($($x)*$([$($g)*])*$(($($p)*))*)),*]));
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:34:40
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn parse<'f, T: Parse<'f>>(pairs: &mut Iterator<Item = Pair<'f>>) -> T {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Pair<'f>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:38:44
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn parse_vec<'f, T: Parse<'f>>(pairs: &mut Iterator<Item = Pair<'f>>) -> Vec<T> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Pair<'f>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/envs/match_env.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn add(&mut self, k: Exp, v: Exp) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scope_exp`
[INFO] [stdout]   --> src/envs/namespaces.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn scope_exp<'b, I: IntoIterator>(&'b self, names: &'a mut NameData, v: I) -> Namespaces<'b> where 'a: 'b, I::Item: AsRef<str> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scope_truth`
[INFO] [stdout]   --> src/envs/namespaces.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn scope_truth<'b, I: IntoIterator>(&'b self, names: &'a mut NameData, v: I) -> Namespaces<'b> where 'a: 'b, I::Item: AsRef<str> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scope_truth`
[INFO] [stdout]   --> src/envs/envs.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn scope_truth<'b>(&'b self, v: Vec<TruthVal>) -> Envs<'b> where 'a: 'b {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen`
[INFO] [stdout]   --> src/envs/type_val.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn gen(&self) -> &Vec<Variance> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `range_contains` has been stable since 1.35.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(range_contains, box_patterns, transpose_result)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `transpose_result` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(range_contains, box_patterns, transpose_result)]
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/envs/match_env.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn add(&mut self, k: Exp, v: Exp) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/envs/match_env.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scope_exp`
[INFO] [stdout]   --> src/envs/namespaces.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn scope_exp<'b, I: IntoIterator>(&'b self, names: &'a mut NameData, v: I) -> Namespaces<'b> where 'a: 'b, I::Item: AsRef<str> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scope_truth`
[INFO] [stdout]   --> src/envs/namespaces.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn scope_truth<'b, I: IntoIterator>(&'b self, names: &'a mut NameData, v: I) -> Namespaces<'b> where 'a: 'b, I::Item: AsRef<str> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scope_truth`
[INFO] [stdout]   --> src/envs/envs.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn scope_truth<'b>(&'b self, v: Vec<TruthVal>) -> Envs<'b> where 'a: 'b {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen`
[INFO] [stdout]   --> src/envs/type_val.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn gen(&self) -> &Vec<Variance> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `range_contains` has been stable since 1.35.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(range_contains, box_patterns, transpose_result)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `transpose_result` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(range_contains, box_patterns, transpose_result)]
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.19s
[INFO] running `Command { std: "docker" "inspect" "e0a7a58f28b6865e14f76436df56d0f73681db577476114fa9d36e2470605339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0a7a58f28b6865e14f76436df56d0f73681db577476114fa9d36e2470605339", kill_on_drop: false }`
[INFO] [stdout] e0a7a58f28b6865e14f76436df56d0f73681db577476114fa9d36e2470605339