[INFO] fetching crate free-algebra 0.1.0... [INFO] testing free-algebra-0.1.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] extracting crate free-algebra 0.1.0 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate free-algebra 0.1.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate free-algebra 0.1.0 [INFO] finished tweaking crates.io crate free-algebra 0.1.0 [INFO] tweaked toml for crates.io crate free-algebra 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] abeae1c3a68c44702b231dc11ffc6e0f702a1aeeade97882867e9414d6f8726e [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" "abeae1c3a68c44702b231dc11ffc6e0f702a1aeeade97882867e9414d6f8726e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "abeae1c3a68c44702b231dc11ffc6e0f702a1aeeade97882867e9414d6f8726e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "abeae1c3a68c44702b231dc11ffc6e0f702a1aeeade97882867e9414d6f8726e", kill_on_drop: false }` [INFO] [stdout] abeae1c3a68c44702b231dc11ffc6e0f702a1aeeade97882867e9414d6f8726e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0d376c1caeb2e014567cb50f201d45c750f5338c4c953c26edbf923c5defb3c9 [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" "0d376c1caeb2e014567cb50f201d45c750f5338c4c953c26edbf923c5defb3c9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling maths-traits v0.2.1 [INFO] [stderr] Compiling derivative v1.0.4 [INFO] [stderr] Compiling free-algebra v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:77:12 [INFO] [stdout] | [INFO] [stdout] 77 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.89s [INFO] running `Command { std: "docker" "inspect" "0d376c1caeb2e014567cb50f201d45c750f5338c4c953c26edbf923c5defb3c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d376c1caeb2e014567cb50f201d45c750f5338c4c953c26edbf923c5defb3c9", kill_on_drop: false }` [INFO] [stdout] 0d376c1caeb2e014567cb50f201d45c750f5338c4c953c26edbf923c5defb3c9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 94287e040cd077eed5386b977ea797155ad046750c863e255b6ee1710326564a [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" "94287e040cd077eed5386b977ea797155ad046750c863e255b6ee1710326564a", kill_on_drop: false }` [INFO] [stderr] Compiling free-algebra v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:77:12 [INFO] [stdout] | [INFO] [stdout] 77 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:77:12 [INFO] [stdout] | [INFO] [stdout] 77 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.25s [INFO] running `Command { std: "docker" "inspect" "94287e040cd077eed5386b977ea797155ad046750c863e255b6ee1710326564a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "94287e040cd077eed5386b977ea797155ad046750c863e255b6ee1710326564a", kill_on_drop: false }` [INFO] [stdout] 94287e040cd077eed5386b977ea797155ad046750c863e255b6ee1710326564a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 66798e514d16455c46d712f9cdef16725a5812442e16547b28a202c18580d77f [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" "66798e514d16455c46d712f9cdef16725a5812442e16547b28a202c18580d77f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stderr] --> src/lib.rs:77:12 [INFO] [stderr] | [INFO] [stderr] 77 | #![feature(specialization)] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(incomplete_features)]` on by default [INFO] [stderr] = note: see issue #31844 for more information [INFO] [stderr] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/lib.rs:77:12 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 77 | #![feature(specialization)] [INFO] [stdout] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(incomplete_features)]` on by default [INFO] [stderr] = note: see issue #31844 for more information [INFO] [stderr] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.20s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/free_algebra-13e1fb0cacc07f4a) [INFO] [stderr] Doc-tests free-algebra [INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stderr] --> /opt/rustwide/workdir/src/lib.rs:77:12 [INFO] [stderr] | [INFO] [stderr] 77 | #![feature(specialization)] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(incomplete_features)]` on by default [INFO] [stderr] = note: see issue #31844 for more information [INFO] [stderr] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: 1 warning emitted [INFO] [stdout] running 26 tests [INFO] [stderr] [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString (line 115) ... ok [INFO] [stdout] test src/specifics/free_group.rs - specifics::free_group::FreeInv::is_inv (line 100) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString::iter_mut (line 277) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString::reverse (line 302) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString (line 96) ... ok [INFO] [stdout] test src/specifics/free_group.rs - specifics::free_group::FreeGroup (line 10) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString::iter (line 254) ... ok [INFO] [stdout] test src/module.rs - module::ModuleString::get_ref (line 258) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString::commutator (line 337) ... ok [INFO] [stdout] test src/module.rs - module::ModuleString (line 75) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString::len (line 236) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString::commutator (line 321) ... ok [INFO] [stdout] test src/lib.rs - (line 21) ... ok [INFO] [stdout] test src/module.rs - module::ModuleString::commutator (line 329) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString (line 124) ... ok [INFO] [stdout] test src/specifics/free_group.rs - specifics::free_group::FreeInv::is_id (line 114) ... ok [INFO] [stdout] test src/monoid.rs - monoid::MonoidalString (line 105) ... ok [INFO] [stdout] test src/module.rs - module::ModuleString::commutator (line 352) ... ok [INFO] [stdout] test src/specifics/free_monoid.rs - specifics::free_monoid::FreeMonoid (line 11) ... ok [INFO] [stdout] test src/specifics/mod.rs - specifics::MonoidRing (line 40) ... ok [INFO] [stdout] test src/module.rs - module::ModuleString::get (line 279) ... ok [INFO] [stdout] test src/module.rs - module::ModuleString::iter_mut (line 303) ... ok [INFO] [stdout] test src/specifics/mod.rs - specifics::FreeModule (line 92) ... ok [INFO] [stdout] test src/specifics/free_pow.rs - specifics::free_pow::FreePowMonoid (line 11) ... ok [INFO] [stdout] test src/module.rs - module::ModuleString::len (line 236) ... ok [INFO] [stdout] test src/specifics/mod.rs - specifics::FreeAlgebra (line 120) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "66798e514d16455c46d712f9cdef16725a5812442e16547b28a202c18580d77f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66798e514d16455c46d712f9cdef16725a5812442e16547b28a202c18580d77f", kill_on_drop: false }` [INFO] [stdout] 66798e514d16455c46d712f9cdef16725a5812442e16547b28a202c18580d77f