[INFO] cloning repository https://github.com/dmolokanov/execution-time
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmolokanov/execution-time" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmolokanov%2Fexecution-time", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmolokanov%2Fexecution-time'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 745a3827375689d62a8e614baa10b8ff8799732c
[INFO] checking dmolokanov/execution-time against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmolokanov%2Fexecution-time" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmolokanov/execution-time on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmolokanov/execution-time
[INFO] finished tweaking git repo https://github.com/dmolokanov/execution-time
[INFO] tweaked toml for git repo https://github.com/dmolokanov/execution-time written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dmolokanov/execution-time already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] a9836357d41cfedb36a6a679d3962def8ff6a169bafe0f133d1f8f2f751fc2ff
[INFO] running `Command { std: "docker" "start" "-a" "a9836357d41cfedb36a6a679d3962def8ff6a169bafe0f133d1f8f2f751fc2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9836357d41cfedb36a6a679d3962def8ff6a169bafe0f133d1f8f2f751fc2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9836357d41cfedb36a6a679d3962def8ff6a169bafe0f133d1f8f2f751fc2ff", kill_on_drop: false }`
[INFO] [stdout] a9836357d41cfedb36a6a679d3962def8ff6a169bafe0f133d1f8f2f751fc2ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e56cd4dc95ac4490a47b7dbb671643a562a854b6facc5cbeaff8a086465acc3
[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" "1e56cd4dc95ac4490a47b7dbb671643a562a854b6facc5cbeaff8a086465acc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling execution-time-core v0.1.0 (/opt/rustwide/workdir/execution-time-core)
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> execution-time-core/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> execution-time-core/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> execution-time-core/src/lib.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn add_callback<N, F>(name: N, callback: F)
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> execution-time-core/src/lib.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn add_callback<N, F>(name: N, callback: F)
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callback`
[INFO] [stdout]   --> execution-time-core/src/lib.rs:17:36
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn add_callback<N, F>(name: N, callback: F)
[INFO] [stdout]    |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_callback`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Registry`
[INFO] [stdout]  --> execution-time-core/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Registry = HashMap<String, Callback>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Callback`
[INFO] [stdout]  --> execution-time-core/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Callback(Arc<dyn Fn() + Send + Sync>);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callback`
[INFO] [stdout]   --> execution-time-core/src/lib.rs:17:36
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn add_callback<N, F>(name: N, callback: F)
[INFO] [stdout]    |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_callback`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Registry`
[INFO] [stdout]  --> execution-time-core/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Registry = HashMap<String, Callback>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Callback`
[INFO] [stdout]  --> execution-time-core/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Callback(Arc<dyn Fn() + Send + Sync>);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `execution_time` in this scope
[INFO] [stdout]   --> execution-time-core/src/lib.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 |         #[execution_time]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> execution-time-core/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `execution-time-core` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1e56cd4dc95ac4490a47b7dbb671643a562a854b6facc5cbeaff8a086465acc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e56cd4dc95ac4490a47b7dbb671643a562a854b6facc5cbeaff8a086465acc3", kill_on_drop: false }`
[INFO] [stdout] 1e56cd4dc95ac4490a47b7dbb671643a562a854b6facc5cbeaff8a086465acc3