[INFO] cloning repository https://github.com/twocucao/mipha
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twocucao/mipha" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f6ec31f4c884c4e9ef008495fa218c643e6a7cc
[INFO] checking twocucao/mipha against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twocucao/mipha on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/twocucao/mipha
[INFO] finished tweaking git repo https://github.com/twocucao/mipha
[INFO] tweaked toml for git repo https://github.com/twocucao/mipha written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/twocucao/mipha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3cls v0.11.1
[INFO] [stderr]   Downloaded ctor v0.1.14
[INFO] [stderr]   Downloaded inventory-impl v0.1.6
[INFO] [stderr]   Downloaded inventory v0.1.6
[INFO] [stderr]   Downloaded pyo3 v0.11.1
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.11.1
[INFO] [stderr]   Downloaded pyo3-log v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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] 19a06d755ec8aabe588cf1c90ea45ec008a7f3b954a6a1d790af7d1e785c60cc
[INFO] running `Command { std: "docker" "start" "-a" "19a06d755ec8aabe588cf1c90ea45ec008a7f3b954a6a1d790af7d1e785c60cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19a06d755ec8aabe588cf1c90ea45ec008a7f3b954a6a1d790af7d1e785c60cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19a06d755ec8aabe588cf1c90ea45ec008a7f3b954a6a1d790af7d1e785c60cc", kill_on_drop: false }`
[INFO] [stdout] 19a06d755ec8aabe588cf1c90ea45ec008a7f3b954a6a1d790af7d1e785c60cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3beedc9c8e92759196ae2987b2c931cfdf3630e742554d6183ac209db1c13669
[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" "3beedc9c8e92759196ae2987b2c931cfdf3630e742554d6183ac209db1c13669", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling pyo3 v0.11.1
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]    Compiling generic-array v0.14.3
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling pyo3-derive-backend v0.11.1
[INFO] [stderr]    Compiling inventory-impl v0.1.6
[INFO] [stderr]    Compiling paste-impl v0.1.12
[INFO] [stderr]    Compiling indoc-impl v0.3.5
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling ctor v0.1.14
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling pyo3cls v0.11.1
[INFO] [stderr]     Checking indoc v0.3.5
[INFO] [stderr]     Checking paste v0.1.12
[INFO] [stderr]     Checking pyo3-log v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking mipha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `OSError`
[INFO] [stdout]  --> src/speedscope.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pyo3::exceptions::{OSError, RuntimeError};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OSError`
[INFO] [stdout]  --> src/speedscope.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pyo3::exceptions::{OSError, RuntimeError};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/speedscope.rs:154:34
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn export_to_json(&mut self, filename: &str) -> PyResult<String> {
[INFO] [stdout]     |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/speedscope.rs:154:34
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn export_to_json(&mut self, filename: &str) -> PyResult<String> {
[INFO] [stdout]     |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "3beedc9c8e92759196ae2987b2c931cfdf3630e742554d6183ac209db1c13669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3beedc9c8e92759196ae2987b2c931cfdf3630e742554d6183ac209db1c13669", kill_on_drop: false }`
[INFO] [stdout] 3beedc9c8e92759196ae2987b2c931cfdf3630e742554d6183ac209db1c13669