[INFO] fetching crate failchain 0.1015.2...
[INFO] checking failchain-0.1015.2 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate failchain 0.1015.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate failchain 0.1015.2 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate failchain 0.1015.2
[INFO] finished tweaking crates.io crate failchain 0.1015.2
[INFO] tweaked toml for crates.io crate failchain 0.1015.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48fabb4dd9fb11011dc922ea165fe5916f5561a17be1908739be2dd1b9fe71c4
[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" "48fabb4dd9fb11011dc922ea165fe5916f5561a17be1908739be2dd1b9fe71c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48fabb4dd9fb11011dc922ea165fe5916f5561a17be1908739be2dd1b9fe71c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48fabb4dd9fb11011dc922ea165fe5916f5561a17be1908739be2dd1b9fe71c4", kill_on_drop: false }`
[INFO] [stdout] 48fabb4dd9fb11011dc922ea165fe5916f5561a17be1908739be2dd1b9fe71c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 846a4d67460a70999ca1245090d42e5d571619e7a1bf8aaff4cd93d60d949816
[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" "846a4d67460a70999ca1245090d42e5d571619e7a1bf8aaff4cd93d60d949816", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking failchain v0.1015.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:245:32
[INFO] [stdout]     |
[INFO] [stdout] 245 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]     |                                ^^^^ help: use `dyn`: `dyn Fail`
[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/lib.rs:279:32
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]     |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:245:32
[INFO] [stdout]     |
[INFO] [stdout] 245 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]     |                                ^^^^ help: use `dyn`: `dyn Fail`
[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/lib.rs:279:32
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]     |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wad_file`
[INFO] [stdout]   --> examples/main.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let wad_file = File::open(wad).chain_err(|| ErrorKind::WadIo(wad.to_owned()))?;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wad_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata_file`
[INFO] [stdout]   --> examples/main.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let metadata_file = File::open(metadata)
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Result`
[INFO] [stdout]   --> examples/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub type Result<T> = StdResult<T, Error>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MetadataIo`
[INFO] [stdout]   --> examples/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         MetadataIo(PathBuf),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CorruptMetadata`
[INFO] [stdout]   --> examples/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         CorruptMetadata(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WadIo`
[INFO] [stdout]   --> examples/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         WadIo(PathBuf),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CorruptWad`
[INFO] [stdout]   --> examples/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         CorruptWad(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_metadata`
[INFO] [stdout]   --> examples/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn validate_metadata(path: &Path, metadata: &str) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load`
[INFO] [stdout]   --> examples/main.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn load(wad: &Path, metadata: &Path) -> Result<()> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.44s
[INFO] running `Command { std: "docker" "inspect" "846a4d67460a70999ca1245090d42e5d571619e7a1bf8aaff4cd93d60d949816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "846a4d67460a70999ca1245090d42e5d571619e7a1bf8aaff4cd93d60d949816", kill_on_drop: false }`
[INFO] [stdout] 846a4d67460a70999ca1245090d42e5d571619e7a1bf8aaff4cd93d60d949816