[INFO] fetching crate mtproxy 0.0.2...
[INFO] checking mtproxy-0.0.2 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[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 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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" "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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8807fdb784a7f0bfe9eae79ddaa91b8997b886315ac989645fd08711ad35be1
[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" "b8807fdb784a7f0bfe9eae79ddaa91b8997b886315ac989645fd08711ad35be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8807fdb784a7f0bfe9eae79ddaa91b8997b886315ac989645fd08711ad35be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8807fdb784a7f0bfe9eae79ddaa91b8997b886315ac989645fd08711ad35be1", kill_on_drop: false }`
[INFO] [stdout] b8807fdb784a7f0bfe9eae79ddaa91b8997b886315ac989645fd08711ad35be1
[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" "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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--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] d7a0c6eaa2e17caf39efc9c5aabfe159e229387aa8cf45f64cf6c86c372a599e
[INFO] running `Command { std: "docker" "start" "-a" "d7a0c6eaa2e17caf39efc9c5aabfe159e229387aa8cf45f64cf6c86c372a599e", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking log v0.4.13
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking 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: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: 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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d7a0c6eaa2e17caf39efc9c5aabfe159e229387aa8cf45f64cf6c86c372a599e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7a0c6eaa2e17caf39efc9c5aabfe159e229387aa8cf45f64cf6c86c372a599e", kill_on_drop: false }`
[INFO] [stdout] d7a0c6eaa2e17caf39efc9c5aabfe159e229387aa8cf45f64cf6c86c372a599e