[INFO] fetching crate slr_config 0.0.20...
[INFO] checking slr_config-0.0.20 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate slr_config 0.0.20 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate slr_config 0.0.20 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slr_config 0.0.20
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate slr_config 0.0.20
[INFO] tweaked toml for crates.io crate slr_config 0.0.20 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate slr_config 0.0.20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slr_parser v0.0.20
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea8cd3fdd8f96a4df0c1a3e8b533d57d9d900133622fbd36c4508f6146fb66da
[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" "ea8cd3fdd8f96a4df0c1a3e8b533d57d9d900133622fbd36c4508f6146fb66da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea8cd3fdd8f96a4df0c1a3e8b533d57d9d900133622fbd36c4508f6146fb66da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea8cd3fdd8f96a4df0c1a3e8b533d57d9d900133622fbd36c4508f6146fb66da", kill_on_drop: false }`
[INFO] [stdout] ea8cd3fdd8f96a4df0c1a3e8b533d57d9d900133622fbd36c4508f6146fb66da
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2855700bd0b0ac0955c43304e71b27c1b2b07db4181aef2bb7358b36599e106f
[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" "2855700bd0b0ac0955c43304e71b27c1b2b07db4181aef2bb7358b36599e106f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]     Checking slr_parser v0.0.20
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking slr_config v0.0.20 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/de.rs:406:61
[INFO] [stdout]     |
[INFO] [stdout] 406 |             <T as FromStr>::from_str(value).map_err(|e| self.error(e.description()))
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/de.rs:406:61
[INFO] [stdout]     |
[INFO] [stdout] 406 |             <T as FromStr>::from_str(value).map_err(|e| self.error(e.description()))
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.26s
[INFO] running `Command { std: "docker" "inspect" "2855700bd0b0ac0955c43304e71b27c1b2b07db4181aef2bb7358b36599e106f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2855700bd0b0ac0955c43304e71b27c1b2b07db4181aef2bb7358b36599e106f", kill_on_drop: false }`
[INFO] [stdout] 2855700bd0b0ac0955c43304e71b27c1b2b07db4181aef2bb7358b36599e106f