[INFO] fetching crate mu_runtime 0.2.0...
[INFO] checking mu_runtime-0.2.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate mu_runtime 0.2.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate mu_runtime 0.2.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mu_runtime 0.2.0
[INFO] finished tweaking crates.io crate mu_runtime 0.2.0
[INFO] tweaked toml for crates.io crate mu_runtime 0.2.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45a2df5a0ec6049e0e6551c20d8fa792946fa8796cae211b65886631eaa18509
[INFO] running `Command { std: "docker" "start" "-a" "45a2df5a0ec6049e0e6551c20d8fa792946fa8796cae211b65886631eaa18509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45a2df5a0ec6049e0e6551c20d8fa792946fa8796cae211b65886631eaa18509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a2df5a0ec6049e0e6551c20d8fa792946fa8796cae211b65886631eaa18509", kill_on_drop: false }`
[INFO] [stdout] 45a2df5a0ec6049e0e6551c20d8fa792946fa8796cae211b65886631eaa18509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a94bcb698057b8696c610950645aea8b6576b637492d45c584947fcac924982
[INFO] running `Command { std: "docker" "start" "-a" "8a94bcb698057b8696c610950645aea8b6576b637492d45c584947fcac924982", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.82
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[INFO] [stderr]    Compiling memchr v2.4.1
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[INFO] [stderr]    Compiling lalrpop-util v0.19.6
[INFO] [stderr]    Compiling ctor v0.1.21
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[INFO] [stderr]    Compiling lalrpop v0.19.6
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[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking mu_runtime v0.2.0 (/opt/rustwide/workdir)
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[INFO] [stderr]     Checking rusoto_signature v0.46.0
[INFO] [stderr]     Checking rusoto_dynamodb v0.46.0
[INFO] [stderr]    Compiling basic-cookies v0.1.4
[INFO] [stderr]     Checking httpmock v0.5.8
[INFO] [stdout] warning: unused import: `std::panic::panic_any`
[INFO] [stdout]  --> tests/serialization.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::panic::panic_any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.63s
[INFO] running `Command { std: "docker" "inspect" "8a94bcb698057b8696c610950645aea8b6576b637492d45c584947fcac924982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a94bcb698057b8696c610950645aea8b6576b637492d45c584947fcac924982", kill_on_drop: false }`
[INFO] [stdout] 8a94bcb698057b8696c610950645aea8b6576b637492d45c584947fcac924982