[INFO] fetching crate type-variance 0.1.0...
[INFO] testing type-variance-0.1.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate type-variance 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate type-variance 0.1.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate type-variance 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate type-variance 0.1.0
[INFO] tweaked toml for crates.io crate type-variance 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 878ec4f053b92e76c8fc63090e33257fd239893478d9424feda8fc08ecfe7c67
[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" "878ec4f053b92e76c8fc63090e33257fd239893478d9424feda8fc08ecfe7c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "878ec4f053b92e76c8fc63090e33257fd239893478d9424feda8fc08ecfe7c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "878ec4f053b92e76c8fc63090e33257fd239893478d9424feda8fc08ecfe7c67", kill_on_drop: false }`
[INFO] [stdout] 878ec4f053b92e76c8fc63090e33257fd239893478d9424feda8fc08ecfe7c67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e6a5ed9dbdbf09e9537fa0fabc7d7df34fa5d314959d0ce82cf16c9f84c66641
[INFO] running `Command { std: "docker" "start" "-a" "e6a5ed9dbdbf09e9537fa0fabc7d7df34fa5d314959d0ce82cf16c9f84c66641", kill_on_drop: false }`
[INFO] [stderr]    Compiling type-variance v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "e6a5ed9dbdbf09e9537fa0fabc7d7df34fa5d314959d0ce82cf16c9f84c66641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6a5ed9dbdbf09e9537fa0fabc7d7df34fa5d314959d0ce82cf16c9f84c66641", kill_on_drop: false }`
[INFO] [stdout] e6a5ed9dbdbf09e9537fa0fabc7d7df34fa5d314959d0ce82cf16c9f84c66641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d98a74085f1a79780a857acd0ff79766b161bbaa1b141700d41914d888783c23
[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" "d98a74085f1a79780a857acd0ff79766b161bbaa1b141700d41914d888783c23", kill_on_drop: false }`
[INFO] [stderr]    Compiling trybuild v1.0.43
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling type-variance v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 24.97s
[INFO] running `Command { std: "docker" "inspect" "d98a74085f1a79780a857acd0ff79766b161bbaa1b141700d41914d888783c23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98a74085f1a79780a857acd0ff79766b161bbaa1b141700d41914d888783c23", kill_on_drop: false }`
[INFO] [stdout] d98a74085f1a79780a857acd0ff79766b161bbaa1b141700d41914d888783c23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2cb79d27b6a5063a94430d854efb92ce8b46ff732dc903bf2dcd85fb7cecafd3
[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" "2cb79d27b6a5063a94430d854efb92ce8b46ff732dc903bf2dcd85fb7cecafd3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/type_variance-a9b7c2ea4664132e)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::co_contra ... ok
[INFO] [stderr]      Running tests/fail.rs (/opt/rustwide/target/debug/deps/failure_tests-6fd709cca6d8b6a0)
[INFO] [stdout] test tests::contravariant ... ok
[INFO] [stdout] test tests::covariant ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]     Checking type-variance v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking type-variance-tests v0.0.0 (/opt/rustwide/target/tests/type-variance)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] test tests/fail_covariant.rs ... ok
[INFO] [stderr] test tests/fail_contravariant.rs ... ok
[INFO] [stderr] test tests/fail_invariant_covariant.rs ... ok
[INFO] [stderr] test tests/fail_invariant_contravariant.rs ... ok
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stdout] test failure_tests ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.81s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests type-variance
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Lifetime (line 165) ... ok
[INFO] [stdout] test src/lib.rs - variance (line 187) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2cb79d27b6a5063a94430d854efb92ce8b46ff732dc903bf2dcd85fb7cecafd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cb79d27b6a5063a94430d854efb92ce8b46ff732dc903bf2dcd85fb7cecafd3", kill_on_drop: false }`
[INFO] [stdout] 2cb79d27b6a5063a94430d854efb92ce8b46ff732dc903bf2dcd85fb7cecafd3