[INFO] fetching crate dolores 0.1.10...
[INFO] checking dolores-0.1.10 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate dolores 0.1.10 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate dolores 0.1.10 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dolores 0.1.10
[INFO] finished tweaking crates.io crate dolores 0.1.10
[INFO] tweaked toml for crates.io crate dolores 0.1.10 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded recurdates v0.3.1
[INFO] [stderr]   Downloaded cattlerustler v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2462d086e534e0cda63aa80ce0def1fc3281d7b272142db76eb425f770df459e
[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" "2462d086e534e0cda63aa80ce0def1fc3281d7b272142db76eb425f770df459e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2462d086e534e0cda63aa80ce0def1fc3281d7b272142db76eb425f770df459e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2462d086e534e0cda63aa80ce0def1fc3281d7b272142db76eb425f770df459e", kill_on_drop: false }`
[INFO] [stdout] 2462d086e534e0cda63aa80ce0def1fc3281d7b272142db76eb425f770df459e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02ebadc87b22899c5fb839537c46a0362631b0fc97ebfca516ebcaf364bc2cdb
[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" "02ebadc87b22899c5fb839537c46a0362631b0fc97ebfca516ebcaf364bc2cdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking lazysort v0.2.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]    Compiling leveldb-sys v2.0.6
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking recurdates v0.3.1
[INFO] [stderr]     Checking leveldb v0.8.5
[INFO] [stderr]     Checking cattlerustler v0.2.2
[INFO] [stderr]     Checking dolores v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]    --> src/main.rs:173:24
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let dolores_path = env::home_dir().unwrap().join(".dolores");
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]  --> src/db.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let home = env::home_dir();
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]    --> src/main.rs:173:24
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let dolores_path = env::home_dir().unwrap().join(".dolores");
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]  --> src/db.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let home = env::home_dir();
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> src/db.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             fs::create_dir_all(&path).is_ok();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> src/db.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             fs::create_dir_all(&path).is_ok();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "02ebadc87b22899c5fb839537c46a0362631b0fc97ebfca516ebcaf364bc2cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ebadc87b22899c5fb839537c46a0362631b0fc97ebfca516ebcaf364bc2cdb", kill_on_drop: false }`
[INFO] [stdout] 02ebadc87b22899c5fb839537c46a0362631b0fc97ebfca516ebcaf364bc2cdb