[INFO] fetching crate romodoro 0.5.0...
[INFO] checking romodoro-0.5.0 against beta for pr-78714
[INFO] extracting crate romodoro 0.5.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate romodoro 0.5.0 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 romodoro 0.5.0
[INFO] finished tweaking crates.io crate romodoro 0.5.0
[INFO] tweaked toml for crates.io crate romodoro 0.5.0 written to /workspace/builds/worker-12/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 536a1a0b0f4ff42be3ff3e8a6fcc1ad41d8c14c6b8757b354d4a9729a441d040
[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" "536a1a0b0f4ff42be3ff3e8a6fcc1ad41d8c14c6b8757b354d4a9729a441d040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "536a1a0b0f4ff42be3ff3e8a6fcc1ad41d8c14c6b8757b354d4a9729a441d040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536a1a0b0f4ff42be3ff3e8a6fcc1ad41d8c14c6b8757b354d4a9729a441d040", kill_on_drop: false }`
[INFO] [stdout] 536a1a0b0f4ff42be3ff3e8a6fcc1ad41d8c14c6b8757b354d4a9729a441d040
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] e88acdc8b5550d52c209a5eece5321c1fc6a967cb211f63ebab00c57e9acf538
[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" "e88acdc8b5550d52c209a5eece5321c1fc6a967cb211f63ebab00c57e9acf538", kill_on_drop: false }`
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking romodoro v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:225:55
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn write_duration(dur: chrono::Duration, writer: &mut std::io::Write) {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[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/main.rs:225:55
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn write_duration(dur: chrono::Duration, writer: &mut std::io::Write) {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "e88acdc8b5550d52c209a5eece5321c1fc6a967cb211f63ebab00c57e9acf538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88acdc8b5550d52c209a5eece5321c1fc6a967cb211f63ebab00c57e9acf538", kill_on_drop: false }`
[INFO] [stdout] e88acdc8b5550d52c209a5eece5321c1fc6a967cb211f63ebab00c57e9acf538