[INFO] fetching crate stewart 0.9.1...
[INFO] checking stewart-0.9.1 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate stewart 0.9.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate stewart 0.9.1
[INFO] finished tweaking crates.io crate stewart 0.9.1
[INFO] tweaked toml for crates.io crate stewart 0.9.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stewart 0.9.1 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stewart 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.31
[INFO] [stderr]   Downloaded getrandom v0.2.10
[INFO] [stderr]   Downloaded uuid v1.4.0
[INFO] [stderr]   Downloaded tracing-test-macro v0.2.4
[INFO] [stderr]   Downloaded thiserror-impl v1.0.43
[INFO] [stderr]   Downloaded tracing-test v0.2.4
[INFO] [stderr]   Downloaded thunderdome v0.6.1
[INFO] [stderr]   Downloaded thiserror v1.0.43
[INFO] [stderr]   Downloaded anyhow v1.0.72
[INFO] [stderr]   Downloaded sharded-slab v0.1.4
[INFO] [stderr]   Downloaded tracing v0.1.37
[INFO] [stderr]   Downloaded log v0.4.19
[INFO] [stderr]   Downloaded tracing-core v0.1.31
[INFO] [stderr]   Downloaded smallvec v1.11.0
[INFO] [stderr]   Downloaded aho-corasick v1.0.2
[INFO] [stderr]   Downloaded tracing-attributes v0.1.26
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.17
[INFO] [stderr]   Downloaded tracing-log v0.1.3
[INFO] [stderr]   Downloaded pin-project-lite v0.2.10
[INFO] [stderr]   Downloaded regex v1.9.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.11
[INFO] [stderr]   Downloaded proc-macro2 v1.0.66
[INFO] [stderr]   Downloaded syn v2.0.26
[INFO] [stderr]   Downloaded regex-syntax v0.7.4
[INFO] [stderr]   Downloaded regex-automata v0.3.3
[INFO] [stderr]   Downloaded libc v0.2.147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6d78dae48f9f22e1acddd9aff58a6b2eb3cf9b71e807a3bdbb07c5e8715fed6
[INFO] running `Command { std: "docker" "start" "-a" "d6d78dae48f9f22e1acddd9aff58a6b2eb3cf9b71e807a3bdbb07c5e8715fed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6d78dae48f9f22e1acddd9aff58a6b2eb3cf9b71e807a3bdbb07c5e8715fed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d78dae48f9f22e1acddd9aff58a6b2eb3cf9b71e807a3bdbb07c5e8715fed6", kill_on_drop: false }`
[INFO] [stdout] d6d78dae48f9f22e1acddd9aff58a6b2eb3cf9b71e807a3bdbb07c5e8715fed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f65feb9af4f27d53b9e8a5177e38ae5f4cfec3741d54396a9eecb23408e8598
[INFO] running `Command { std: "docker" "start" "-a" "8f65feb9af4f27d53b9e8a5177e38ae5f4cfec3741d54396a9eecb23408e8598", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking thunderdome v0.6.1
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking uuid v1.4.0
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]    Compiling tracing-test-macro v0.2.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking stewart v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]    --> src/mailbox.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     source: Error,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]    --> src/world.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 |     source: Error,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-test v0.2.4
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> tests/utils/mock.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct ActorInfo {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 51 |     pub id: Id,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]    --> src/mailbox.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     source: Error,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]    --> src/world.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 |     source: Error,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.76s
[INFO] running `Command { std: "docker" "inspect" "8f65feb9af4f27d53b9e8a5177e38ae5f4cfec3741d54396a9eecb23408e8598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f65feb9af4f27d53b9e8a5177e38ae5f4cfec3741d54396a9eecb23408e8598", kill_on_drop: false }`
[INFO] [stdout] 8f65feb9af4f27d53b9e8a5177e38ae5f4cfec3741d54396a9eecb23408e8598