[INFO] fetching crate jfs 0.6.2...
[INFO] checking jfs-0.6.2 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate jfs 0.6.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate jfs 0.6.2 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c5aa5c225b05f4b18966d9a01f09fceed3e07e25fb4dc1f4ea39d2fd01faa57
[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" "5c5aa5c225b05f4b18966d9a01f09fceed3e07e25fb4dc1f4ea39d2fd01faa57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c5aa5c225b05f4b18966d9a01f09fceed3e07e25fb4dc1f4ea39d2fd01faa57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c5aa5c225b05f4b18966d9a01f09fceed3e07e25fb4dc1f4ea39d2fd01faa57", kill_on_drop: false }`
[INFO] [stdout] 5c5aa5c225b05f4b18966d9a01f09fceed3e07e25fb4dc1f4ea39d2fd01faa57
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe5471c73c203fd4969c42aeb42091dbc5f81ff388ed2de60a405c6e4b076ba4
[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" "fe5471c73c203fd4969c42aeb42091dbc5f81ff388ed2de60a405c6e4b076ba4", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[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]     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 25.34s
[INFO] running `Command { std: "docker" "inspect" "fe5471c73c203fd4969c42aeb42091dbc5f81ff388ed2de60a405c6e4b076ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe5471c73c203fd4969c42aeb42091dbc5f81ff388ed2de60a405c6e4b076ba4", kill_on_drop: false }`
[INFO] [stdout] fe5471c73c203fd4969c42aeb42091dbc5f81ff388ed2de60a405c6e4b076ba4