[INFO] fetching crate mdl 1.0.4...
[INFO] checking mdl-1.0.4 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate mdl 1.0.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mdl 1.0.4 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdl 1.0.4
[INFO] finished tweaking crates.io crate mdl 1.0.4
[INFO] tweaked toml for crates.io crate mdl 1.0.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6885b2dc17f5d9344dec0495887b9a6c586bb1a67086c6b184527571b415512b
[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" "6885b2dc17f5d9344dec0495887b9a6c586bb1a67086c6b184527571b415512b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6885b2dc17f5d9344dec0495887b9a6c586bb1a67086c6b184527571b415512b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6885b2dc17f5d9344dec0495887b9a6c586bb1a67086c6b184527571b415512b", kill_on_drop: false }`
[INFO] [stdout] 6885b2dc17f5d9344dec0495887b9a6c586bb1a67086c6b184527571b415512b
[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" "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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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] 31ec1419040b5291b66ba4e43c9da1b633d064d20105b528f06d3405b029407e
[INFO] running `Command { std: "docker" "start" "-a" "31ec1419040b5291b66ba4e43c9da1b633d064d20105b528f06d3405b029407e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking adler v0.2.2
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling lmdb-sys v0.8.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking lmdb v0.8.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking mdl v1.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/signal.rs:61:23
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub callback: Box<Fn(Signal) + Send + 'static>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Signal) + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/signal.rs:66:23
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub callback: Box<Fn(Signal) + 'static>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Signal) + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/signal.rs:149:50
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn subscribe(&self, signal: &str, f: Box<Fn(Signal) + Send + 'static>)
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Signal) + Send + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/signal.rs:201:50
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub fn subscribe(&self, signal: &str, f: Box<Fn(Signal) + 'static>)
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Signal) + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/signal.rs:61:23
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub callback: Box<Fn(Signal) + Send + 'static>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Signal) + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/signal.rs:66:23
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub callback: Box<Fn(Signal) + 'static>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Signal) + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/signal.rs:149:50
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn subscribe(&self, signal: &str, f: Box<Fn(Signal) + Send + 'static>)
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Signal) + Send + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/signal.rs:201:50
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub fn subscribe(&self, signal: &str, f: Box<Fn(Signal) + 'static>)
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Signal) + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.69s
[INFO] running `Command { std: "docker" "inspect" "31ec1419040b5291b66ba4e43c9da1b633d064d20105b528f06d3405b029407e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ec1419040b5291b66ba4e43c9da1b633d064d20105b528f06d3405b029407e", kill_on_drop: false }`
[INFO] [stdout] 31ec1419040b5291b66ba4e43c9da1b633d064d20105b528f06d3405b029407e