[INFO] fetching crate yaccas 0.2.1...
[INFO] checking yaccas-0.2.1 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate yaccas 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yaccas 0.2.1 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 yaccas 0.2.1
[INFO] finished tweaking crates.io crate yaccas 0.2.1
[INFO] tweaked toml for crates.io crate yaccas 0.2.1 written to /workspace/builds/worker-4/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 86722989a303624494614ecf7c06293cf2dbc8be8c4829f43b86f602163f701e
[INFO] running `Command { std: "docker" "start" "-a" "86722989a303624494614ecf7c06293cf2dbc8be8c4829f43b86f602163f701e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86722989a303624494614ecf7c06293cf2dbc8be8c4829f43b86f602163f701e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86722989a303624494614ecf7c06293cf2dbc8be8c4829f43b86f602163f701e", kill_on_drop: false }`
[INFO] [stdout] 86722989a303624494614ecf7c06293cf2dbc8be8c4829f43b86f602163f701e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 5045cae6a72409fbf79da30d56d5e91135e0a5de436fb73fd14db7ed0221b46a
[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" "5045cae6a72409fbf79da30d56d5e91135e0a5de436fb73fd14db7ed0221b46a", kill_on_drop: false }`
[INFO] [stderr]     Checking yaccas v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/arguments/command.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 |     command: Box<Fn() -> AbortReason>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> AbortReason`
[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/arguments/metadata.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub callback: Option<Box<FnMut(&T) -> () + 'a>>,
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&T) -> () + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/arguments/command.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 |     command: Box<Fn() -> AbortReason>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> AbortReason`
[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/arguments/metadata.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub callback: Option<Box<FnMut(&T) -> () + 'a>>,
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&T) -> () + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/scanner/scanner_unix.rs:37:40
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 let trimmed = argument.trim_left_matches('-');
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/scanner/scanner_windows.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 let trimmed = argument.trim_left_matches('/');
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/scanner/scanner_unix.rs:37:40
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 let trimmed = argument.trim_left_matches('-');
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/scanner/scanner_windows.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 let trimmed = argument.trim_left_matches('/');
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "5045cae6a72409fbf79da30d56d5e91135e0a5de436fb73fd14db7ed0221b46a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5045cae6a72409fbf79da30d56d5e91135e0a5de436fb73fd14db7ed0221b46a", kill_on_drop: false }`
[INFO] [stdout] 5045cae6a72409fbf79da30d56d5e91135e0a5de436fb73fd14db7ed0221b46a