[INFO] fetching crate cex 0.5.2...
[INFO] testing cex-0.5.2 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate cex 0.5.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cex 0.5.2 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cex 0.5.2
[INFO] finished tweaking crates.io crate cex 0.5.2
[INFO] tweaked toml for crates.io crate cex 0.5.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enumx_derive v0.4.2
[INFO] [stderr]   Downloaded enumx v0.4.3
[INFO] [stderr]   Downloaded cex_derive v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e4634d54bca5ae42aa968bbf3ae029d18df71c8f5c86e08ccc8e1dbf07ea074
[INFO] running `Command { std: "docker" "start" "-a" "5e4634d54bca5ae42aa968bbf3ae029d18df71c8f5c86e08ccc8e1dbf07ea074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e4634d54bca5ae42aa968bbf3ae029d18df71c8f5c86e08ccc8e1dbf07ea074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e4634d54bca5ae42aa968bbf3ae029d18df71c8f5c86e08ccc8e1dbf07ea074", kill_on_drop: false }`
[INFO] [stdout] 5e4634d54bca5ae42aa968bbf3ae029d18df71c8f5c86e08ccc8e1dbf07ea074
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3096e6b2924e807d4af7cc1eecfc47f1c73aa9eab9c7e38e2a4f2e050756aa61
[INFO] running `Command { std: "docker" "start" "-a" "3096e6b2924e807d4af7cc1eecfc47f1c73aa9eab9c7e38e2a4f2e050756aa61", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling enumx_derive v0.4.2
[INFO] [stderr]    Compiling cex_derive v0.5.2
[INFO] [stderr]    Compiling enumx v0.4.3
[INFO] [stderr]    Compiling cex v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.76s
[INFO] running `Command { std: "docker" "inspect" "3096e6b2924e807d4af7cc1eecfc47f1c73aa9eab9c7e38e2a4f2e050756aa61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3096e6b2924e807d4af7cc1eecfc47f1c73aa9eab9c7e38e2a4f2e050756aa61", kill_on_drop: false }`
[INFO] [stdout] 3096e6b2924e807d4af7cc1eecfc47f1c73aa9eab9c7e38e2a4f2e050756aa61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68b9e7ff634e8cd6621c69f67b684986e4856a2645c35e01e6f68eb19f1a4238
[INFO] running `Command { std: "docker" "start" "-a" "68b9e7ff634e8cd6621c69f67b684986e4856a2645c35e01e6f68eb19f1a4238", kill_on_drop: false }`
[INFO] [stderr]    Compiling cex v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "68b9e7ff634e8cd6621c69f67b684986e4856a2645c35e01e6f68eb19f1a4238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b9e7ff634e8cd6621c69f67b684986e4856a2645c35e01e6f68eb19f1a4238", kill_on_drop: false }`
[INFO] [stdout] 68b9e7ff634e8cd6621c69f67b684986e4856a2645c35e01e6f68eb19f1a4238
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 70b0cdae2c3598a128362db3768b6058fc6dde5c09f4d475d5ab2a0e8958fc36
[INFO] running `Command { std: "docker" "start" "-a" "70b0cdae2c3598a128362db3768b6058fc6dde5c09f4d475d5ab2a0e8958fc36", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cex-0b23a35bdd58f5ea)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/syntax.rs (/opt/rustwide/target/debug/deps/syntax-80647badde725dee)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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]      Running tests/use_cex_to_keep_local_errors_from_being_propagated_by_try_operator.rs (/opt/rustwide/target/debug/deps/use_cex_to_keep_local_errors_from_being_propagated_by_try_operator-43ac98796cd14bb8)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cex
[INFO] [stdout] running 2 tests
[INFO] [stdout] test returns_only_fatal_errors_v4_works ... ok
[INFO] [stdout] test returns_only_fatal_errors_v5_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/log.rs - log (line 32) - compile ... ok
[INFO] [stdout] test src/lib.rs - Error (line 83) ... ok
[INFO] [stdout] test src/lib.rs - MapError (line 103) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "70b0cdae2c3598a128362db3768b6058fc6dde5c09f4d475d5ab2a0e8958fc36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70b0cdae2c3598a128362db3768b6058fc6dde5c09f4d475d5ab2a0e8958fc36", kill_on_drop: false }`
[INFO] [stdout] 70b0cdae2c3598a128362db3768b6058fc6dde5c09f4d475d5ab2a0e8958fc36