[INFO] fetching crate io-streams 0.4.1...
[INFO] checking io-streams-0.4.1 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate io-streams 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate io-streams 0.4.1 on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-streams 0.4.1
[INFO] finished tweaking crates.io crate io-streams 0.4.1
[INFO] tweaked toml for crates.io crate io-streams 0.4.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate io-streams 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d6f3df0c018c90661747892da00e916be3d4799895f51659f7f9c7c190c0696
[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" "8d6f3df0c018c90661747892da00e916be3d4799895f51659f7f9c7c190c0696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d6f3df0c018c90661747892da00e916be3d4799895f51659f7f9c7c190c0696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d6f3df0c018c90661747892da00e916be3d4799895f51659f7f9c7c190c0696", kill_on_drop: false }`
[INFO] [stdout] 8d6f3df0c018c90661747892da00e916be3d4799895f51659f7f9c7c190c0696
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f236ff779b5bac59a67d9ba6231b841aa735fd7e82bd5a0c05f4ae6b40b6d294
[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" "f236ff779b5bac59a67d9ba6231b841aa735fd7e82bd5a0c05f4ae6b40b6d294", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking maybe-owned v0.3.4
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling unsafe-io v0.6.8
[INFO] [stderr]    Compiling cap-primitives v0.13.10
[INFO] [stderr]    Compiling socketpair v0.7.0
[INFO] [stderr]    Compiling char-device v0.4.0
[INFO] [stderr]    Compiling cap-std v0.13.10
[INFO] [stderr]    Compiling system-interface v0.6.5
[INFO] [stderr]    Compiling io-streams v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking posish v0.6.1
[INFO] [stderr]     Checking fs-set-times v0.3.1
[INFO] [stderr]     Checking duplex v0.4.0
[INFO] [stderr]     Checking cap-tempfile v0.13.10
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `StreamDuplexer`
[INFO] [stdout]    --> tests/tests.rs:142:22
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut duplex = StreamDuplexer::null()?;
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 4   | use io_streams::StreamDuplexer;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `io-streams`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f236ff779b5bac59a67d9ba6231b841aa735fd7e82bd5a0c05f4ae6b40b6d294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f236ff779b5bac59a67d9ba6231b841aa735fd7e82bd5a0c05f4ae6b40b6d294", kill_on_drop: false }`
[INFO] [stdout] f236ff779b5bac59a67d9ba6231b841aa735fd7e82bd5a0c05f4ae6b40b6d294