[INFO] fetching crate cex 0.5.2...
[INFO] testing cex-0.5.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate cex 0.5.2 into /workspace/builds/worker-66/source
[INFO] validating manifest of crates.io crate cex 0.5.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-66/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cex_derive v0.5.2
[INFO] [stderr]   Downloaded enumx v0.4.3
[INFO] [stderr]   Downloaded enumx_derive v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6735a9ae262a333d662afd0fbc46d07fb831837b256759b777c6dfa45ede09c3
[INFO] running `Command { std: "docker" "start" "-a" "6735a9ae262a333d662afd0fbc46d07fb831837b256759b777c6dfa45ede09c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6735a9ae262a333d662afd0fbc46d07fb831837b256759b777c6dfa45ede09c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6735a9ae262a333d662afd0fbc46d07fb831837b256759b777c6dfa45ede09c3", kill_on_drop: false }`
[INFO] [stdout] 6735a9ae262a333d662afd0fbc46d07fb831837b256759b777c6dfa45ede09c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50bc362d04a59021897689169f53dd3c44a9cd25c5aa14793000837d68fe6bd6
[INFO] running `Command { std: "docker" "start" "-a" "50bc362d04a59021897689169f53dd3c44a9cd25c5aa14793000837d68fe6bd6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.81
[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 14.23s
[INFO] running `Command { std: "docker" "inspect" "50bc362d04a59021897689169f53dd3c44a9cd25c5aa14793000837d68fe6bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50bc362d04a59021897689169f53dd3c44a9cd25c5aa14793000837d68fe6bd6", kill_on_drop: false }`
[INFO] [stdout] 50bc362d04a59021897689169f53dd3c44a9cd25c5aa14793000837d68fe6bd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c69766121846e09e0d66b336ed2d66f9487e9f58d2e220ae3134e96ad716e25e
[INFO] running `Command { std: "docker" "start" "-a" "c69766121846e09e0d66b336ed2d66f9487e9f58d2e220ae3134e96ad716e25e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cex v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "c69766121846e09e0d66b336ed2d66f9487e9f58d2e220ae3134e96ad716e25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c69766121846e09e0d66b336ed2d66f9487e9f58d2e220ae3134e96ad716e25e", kill_on_drop: false }`
[INFO] [stdout] c69766121846e09e0d66b336ed2d66f9487e9f58d2e220ae3134e96ad716e25e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1067d6378063d6f0780364b42567db76c3d9b2e65a84145d7e09754a454fc618
[INFO] running `Command { std: "docker" "start" "-a" "1067d6378063d6f0780364b42567db76c3d9b2e65a84145d7e09754a454fc618", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cex-6b11155a7ae4f11c)
[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/syntax.rs (/opt/rustwide/target/debug/deps/syntax-15d898e75bad4c5a)
[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-3cbe00b95e186af5)
[INFO] [stdout] 
[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] [stderr]    Doc-tests cex
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/log.rs - log (line 32) - compile ... ok
[INFO] [stdout] test src/lib.rs - MapError (line 103) ... ok
[INFO] [stdout] test src/lib.rs - Error (line 83) ... 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 1.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1067d6378063d6f0780364b42567db76c3d9b2e65a84145d7e09754a454fc618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1067d6378063d6f0780364b42567db76c3d9b2e65a84145d7e09754a454fc618", kill_on_drop: false }`
[INFO] [stdout] 1067d6378063d6f0780364b42567db76c3d9b2e65a84145d7e09754a454fc618