[INFO] crate mtproxy 0.0.2 is already in cache
[INFO] testing mtproxy-0.0.2 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate mtproxy 0.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mtproxy 0.0.2 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mtproxy 0.0.2
[INFO] finished tweaking crates.io crate mtproxy 0.0.2
[INFO] tweaked toml for crates.io crate mtproxy 0.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 681823beb26d1b1f742e22dd2a04d133e2046cbb820b10dc89e816b7d003544a
[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" "681823beb26d1b1f742e22dd2a04d133e2046cbb820b10dc89e816b7d003544a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "681823beb26d1b1f742e22dd2a04d133e2046cbb820b10dc89e816b7d003544a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "681823beb26d1b1f742e22dd2a04d133e2046cbb820b10dc89e816b7d003544a", kill_on_drop: false }`
[INFO] [stdout] 681823beb26d1b1f742e22dd2a04d133e2046cbb820b10dc89e816b7d003544a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91021118ff036e001e7357114a12fb040d6d719f4ec91cf613f2da05da1632d5
[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" "91021118ff036e001e7357114a12fb040d6d719f4ec91cf613f2da05da1632d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling mtproxy v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/proto.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |   dec: Box<SynchronousStreamCipher>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SynchronousStreamCipher`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/proto.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |   enc: Box<SynchronousStreamCipher>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SynchronousStreamCipher`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mtproxy`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "91021118ff036e001e7357114a12fb040d6d719f4ec91cf613f2da05da1632d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91021118ff036e001e7357114a12fb040d6d719f4ec91cf613f2da05da1632d5", kill_on_drop: false }`
[INFO] [stdout] 91021118ff036e001e7357114a12fb040d6d719f4ec91cf613f2da05da1632d5