[INFO] fetching crate jfs 0.6.2...
[INFO] checking jfs-0.6.2 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate jfs 0.6.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate jfs 0.6.2 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jfs 0.6.2
[INFO] finished tweaking crates.io crate jfs 0.6.2
[INFO] tweaked toml for crates.io crate jfs 0.6.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac603300fcff562232d7a7ff4ed62067822322b3d59831d7586b7af6b6ace5d8
[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" "ac603300fcff562232d7a7ff4ed62067822322b3d59831d7586b7af6b6ace5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac603300fcff562232d7a7ff4ed62067822322b3d59831d7586b7af6b6ace5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac603300fcff562232d7a7ff4ed62067822322b3d59831d7586b7af6b6ace5d8", kill_on_drop: false }`
[INFO] [stdout] ac603300fcff562232d7a7ff4ed62067822322b3d59831d7586b7af6b6ace5d8
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1161f1ed4bc34e277116b44ee7ec2a84b46575e4e169eba635b8b044b83d642
[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" "e1161f1ed4bc34e277116b44ee7ec2a84b46575e4e169eba635b8b044b83d642", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking jfs v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/file_store.rs:410:14
[INFO] [stdout]     |
[INFO] [stdout] 410 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/file_store.rs:416:14
[INFO] [stdout]     |
[INFO] [stdout] 416 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolons
[INFO] [stdout]    --> src/file_store.rs:460:14
[INFO] [stdout]     |
[INFO] [stdout] 460 |               };
[INFO] [stdout]     |  ______________^
[INFO] [stdout] 461 | |             #[cfg(feature = "rustc-serialize")]
[INFO] [stdout] 462 | |             #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout] 463 | |             struct X {
[INFO] [stdout] 464 | |                 x: u32,
[INFO] [stdout] 465 | |                 y: u32,
[INFO] [stdout] 466 | |             };
[INFO] [stdout]     | |______________^ help: remove these semicolons
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolons
[INFO] [stdout]    --> src/memory_store.rs:241:10
[INFO] [stdout]     |
[INFO] [stdout] 241 |           };
[INFO] [stdout]     |  __________^
[INFO] [stdout] 242 | |         #[cfg(feature = "rustc-serialize")]
[INFO] [stdout] 243 | |         #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout] 244 | |         struct X {
[INFO] [stdout] 245 | |             x: u32,
[INFO] [stdout] 246 | |             y: u32,
[INFO] [stdout] 247 | |         };
[INFO] [stdout]     | |__________^ help: remove these semicolons
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.89s
[INFO] running `Command { std: "docker" "inspect" "e1161f1ed4bc34e277116b44ee7ec2a84b46575e4e169eba635b8b044b83d642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1161f1ed4bc34e277116b44ee7ec2a84b46575e4e169eba635b8b044b83d642", kill_on_drop: false }`
[INFO] [stdout] e1161f1ed4bc34e277116b44ee7ec2a84b46575e4e169eba635b8b044b83d642