[INFO] fetching crate sdoc 0.8.3...
[INFO] checking sdoc-0.8.3 against beta for pr-78714
[INFO] extracting crate sdoc 0.8.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sdoc 0.8.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sdoc 0.8.3
[INFO] finished tweaking crates.io crate sdoc 0.8.3
[INFO] tweaked toml for crates.io crate sdoc 0.8.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "+beta" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30653fa4c42272673dd1648cd8ca9ef3f11c286fa1d54a14fe8d20f31542d0cf
[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" "30653fa4c42272673dd1648cd8ca9ef3f11c286fa1d54a14fe8d20f31542d0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30653fa4c42272673dd1648cd8ca9ef3f11c286fa1d54a14fe8d20f31542d0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30653fa4c42272673dd1648cd8ca9ef3f11c286fa1d54a14fe8d20f31542d0cf", kill_on_drop: false }`
[INFO] [stdout] 30653fa4c42272673dd1648cd8ca9ef3f11c286fa1d54a14fe8d20f31542d0cf
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29cab844263a9f4d7c7e0c4ac64dd2c47e31c6b8597432e8d6a813d7102bd48a
[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" "29cab844263a9f4d7c7e0c4ac64dd2c47e31c6b8597432e8d6a813d7102bd48a", kill_on_drop: false }`
[INFO] [stderr]     Checking environment v0.1.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking sdoc v0.8.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/workflow/mod.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn run(self, runner: &InstructionRunner) -> Response {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn InstructionRunner`
[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/workflow/mod.rs:61:51
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run_workflow(workflow: Vec<Work>, runner: &InstructionRunner) -> Response {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn InstructionRunner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling skeptic v0.13.5
[INFO] [stderr]    Compiling assert_cli v0.5.4
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/workflow/mod.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn run(self, runner: &InstructionRunner) -> Response {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn InstructionRunner`
[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/workflow/mod.rs:61:51
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run_workflow(workflow: Vec<Work>, runner: &InstructionRunner) -> Response {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn InstructionRunner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.07s
[INFO] running `Command { std: "docker" "inspect" "29cab844263a9f4d7c7e0c4ac64dd2c47e31c6b8597432e8d6a813d7102bd48a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29cab844263a9f4d7c7e0c4ac64dd2c47e31c6b8597432e8d6a813d7102bd48a", kill_on_drop: false }`
[INFO] [stdout] 29cab844263a9f4d7c7e0c4ac64dd2c47e31c6b8597432e8d6a813d7102bd48a