[INFO] cloning repository https://github.com/ThatsGobbles/failure-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ThatsGobbles/failure-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Ffailure-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Ffailure-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77db22cc2c0d5d2663efed45739ac37c96219a81
[INFO] checking ThatsGobbles/failure-test against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Ffailure-test" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ThatsGobbles/failure-test on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ThatsGobbles/failure-test
[INFO] finished tweaking git repo https://github.com/ThatsGobbles/failure-test
[INFO] tweaked toml for git repo https://github.com/ThatsGobbles/failure-test written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/ThatsGobbles/failure-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43362a52f8d5ea3076662ed2fac5242c461147938c633ddf11e37c51a5089426
[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" "43362a52f8d5ea3076662ed2fac5242c461147938c633ddf11e37c51a5089426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43362a52f8d5ea3076662ed2fac5242c461147938c633ddf11e37c51a5089426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43362a52f8d5ea3076662ed2fac5242c461147938c633ddf11e37c51a5089426", kill_on_drop: false }`
[INFO] [stdout] 43362a52f8d5ea3076662ed2fac5242c461147938c633ddf11e37c51a5089426
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90fb2fee9886368604d749bc377805be8ce9a4ce268760fe9989ab0847fa1f1e
[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" "90fb2fee9886368604d749bc377805be8ce9a4ce268760fe9989ab0847fa1f1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking failure-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error_kind_pair.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn cause(&self) -> Option<&Fail> { self.inner.cause() }
[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/error_kind_pair.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 let fail: &Fail = &e;
[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/error_kind_pair.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn cause(&self) -> Option<&Fail> { self.inner.cause() }
[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/error_kind_pair.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 let fail: &Fail = &e;
[INFO] [stdout]    |                            ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ErrorA1`
[INFO] [stdout]  --> src/custom_fail_type.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ErrorA1(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ErrorA2`
[INFO] [stdout]  --> src/custom_fail_type.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     ErrorA2(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ErrorB1`
[INFO] [stdout]   --> src/custom_fail_type.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     ErrorB1(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ErrorB2`
[INFO] [stdout]   --> src/custom_fail_type.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ErrorB2(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `example`
[INFO] [stdout]   --> src/custom_fail_type.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn example() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ErrorA1`
[INFO] [stdout]  --> src/custom_fail_type.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ErrorA1(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ErrorA2`
[INFO] [stdout]  --> src/custom_fail_type.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     ErrorA2(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ErrorB1`
[INFO] [stdout]   --> src/custom_fail_type.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     ErrorB1(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ErrorB2`
[INFO] [stdout]   --> src/custom_fail_type.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ErrorB2(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `example`
[INFO] [stdout]   --> src/custom_fail_type.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn example() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.38s
[INFO] running `Command { std: "docker" "inspect" "90fb2fee9886368604d749bc377805be8ce9a4ce268760fe9989ab0847fa1f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90fb2fee9886368604d749bc377805be8ce9a4ce268760fe9989ab0847fa1f1e", kill_on_drop: false }`
[INFO] [stdout] 90fb2fee9886368604d749bc377805be8ce9a4ce268760fe9989ab0847fa1f1e