[INFO] fetching crate librepology 0.1.0-alpha.1...
[INFO] checking librepology-0.1.0-alpha.1 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate librepology 0.1.0-alpha.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate librepology 0.1.0-alpha.1 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate librepology 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate librepology 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate librepology 0.1.0-alpha.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f60676e6dcb997c7e28a63ad1154c78a7ce91998c6950769253177a6fd46218
[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" "1f60676e6dcb997c7e28a63ad1154c78a7ce91998c6950769253177a6fd46218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f60676e6dcb997c7e28a63ad1154c78a7ce91998c6950769253177a6fd46218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f60676e6dcb997c7e28a63ad1154c78a7ce91998c6950769253177a6fd46218", kill_on_drop: false }`
[INFO] [stdout] 1f60676e6dcb997c7e28a63ad1154c78a7ce91998c6950769253177a6fd46218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2e79a4a0fbd8af3b18bc555f988dc60d47451c3fda28e745fb5335f522c60c6
[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" "b2e79a4a0fbd8af3b18bc555f988dc60d47451c3fda28e745fb5335f522c60c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling curl v0.4.35
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling curl-sys v0.4.41+curl-7.75.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking librepology v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/v1/stdinapi.rs:58:31
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn read_to_string(input: &mut Read) -> Result<String> {
[INFO] [stdout]    |                               ^^^^ help: use `dyn`: `dyn Read`
[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/v1/stdinapi.rs:58:31
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn read_to_string(input: &mut Read) -> Result<String> {
[INFO] [stdout]    |                               ^^^^ help: use `dyn`: `dyn Read`
[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 1m 00s
[INFO] running `Command { std: "docker" "inspect" "b2e79a4a0fbd8af3b18bc555f988dc60d47451c3fda28e745fb5335f522c60c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2e79a4a0fbd8af3b18bc555f988dc60d47451c3fda28e745fb5335f522c60c6", kill_on_drop: false }`
[INFO] [stdout] b2e79a4a0fbd8af3b18bc555f988dc60d47451c3fda28e745fb5335f522c60c6