[INFO] fetching crate cex 0.5.2...
[INFO] testing cex-0.5.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate cex 0.5.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate cex 0.5.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10da1847260bd74ee289aed96c1fcaa9364723b0b4e0b31c16a757791d77d45f
[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" "10da1847260bd74ee289aed96c1fcaa9364723b0b4e0b31c16a757791d77d45f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10da1847260bd74ee289aed96c1fcaa9364723b0b4e0b31c16a757791d77d45f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10da1847260bd74ee289aed96c1fcaa9364723b0b4e0b31c16a757791d77d45f", kill_on_drop: false }`
[INFO] [stdout] 10da1847260bd74ee289aed96c1fcaa9364723b0b4e0b31c16a757791d77d45f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] b89779d7dfa8d975903680914abad15baca65a39f67a17eb678e0bd93402ad1e
[INFO] running `Command { std: "docker" "start" "-a" "b89779d7dfa8d975903680914abad15baca65a39f67a17eb678e0bd93402ad1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[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 28.34s
[INFO] running `Command { std: "docker" "inspect" "b89779d7dfa8d975903680914abad15baca65a39f67a17eb678e0bd93402ad1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b89779d7dfa8d975903680914abad15baca65a39f67a17eb678e0bd93402ad1e", kill_on_drop: false }`
[INFO] [stdout] b89779d7dfa8d975903680914abad15baca65a39f67a17eb678e0bd93402ad1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d90ec3dd19c90c80b06585ccd73e4e8b80e7d0a8b9a587b2968312ff9da445ea
[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" "d90ec3dd19c90c80b06585ccd73e4e8b80e7d0a8b9a587b2968312ff9da445ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling cex v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `Command { std: "docker" "inspect" "d90ec3dd19c90c80b06585ccd73e4e8b80e7d0a8b9a587b2968312ff9da445ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d90ec3dd19c90c80b06585ccd73e4e8b80e7d0a8b9a587b2968312ff9da445ea", kill_on_drop: false }`
[INFO] [stdout] d90ec3dd19c90c80b06585ccd73e4e8b80e7d0a8b9a587b2968312ff9da445ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a83a3f6c02443d427ba8eb72d498ae3945bf921c90d327d581dba3df86516fd7
[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" "a83a3f6c02443d427ba8eb72d498ae3945bf921c90d327d581dba3df86516fd7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cex-45eabb87e14fe7d9)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/syntax.rs (/opt/rustwide/target/debug/deps/syntax-a29efbce54aeea39)
[INFO] [stdout] running 0 tests
[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-52d2d389f53e0e80)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cex
[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] [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] [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 1.23s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a83a3f6c02443d427ba8eb72d498ae3945bf921c90d327d581dba3df86516fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a83a3f6c02443d427ba8eb72d498ae3945bf921c90d327d581dba3df86516fd7", kill_on_drop: false }`
[INFO] [stdout] a83a3f6c02443d427ba8eb72d498ae3945bf921c90d327d581dba3df86516fd7