[INFO] fetching crate stratus 0.1.1...
[INFO] checking stratus-0.1.1 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-150727
[INFO] extracting crate stratus 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate stratus 0.1.1
[INFO] finished tweaking crates.io crate stratus 0.1.1
[INFO] tweaked toml for crates.io crate stratus 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stratus 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded stratus-macros v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 889fe34e95684fa41e15b429500231c10a105aa5d19a9736044de20c4b4b188b
[INFO] running `Command { std: "docker" "start" "-a" "889fe34e95684fa41e15b429500231c10a105aa5d19a9736044de20c4b4b188b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "889fe34e95684fa41e15b429500231c10a105aa5d19a9736044de20c4b4b188b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "889fe34e95684fa41e15b429500231c10a105aa5d19a9736044de20c4b4b188b", kill_on_drop: false }`
[INFO] [stdout] 889fe34e95684fa41e15b429500231c10a105aa5d19a9736044de20c4b4b188b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f7d0e88e09025a6dbd600f9ad722d8cd76ecc1893ccc16d1499f8b4219c4e07c
[INFO] running `Command { std: "docker" "start" "-a" "f7d0e88e09025a6dbd600f9ad722d8cd76ecc1893ccc16d1499f8b4219c4e07c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling stratus-macros v0.1.1
[INFO] [stderr]     Checking stratus v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `active_session` is never read
[INFO] [stdout]   --> src/instrumentor.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct Instrumentor {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 78 |     active_session: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `active_session` is never read
[INFO] [stdout]   --> src/instrumentor.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct Instrumentor {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 78 |     active_session: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "f7d0e88e09025a6dbd600f9ad722d8cd76ecc1893ccc16d1499f8b4219c4e07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d0e88e09025a6dbd600f9ad722d8cd76ecc1893ccc16d1499f8b4219c4e07c", kill_on_drop: false }`
[INFO] [stdout] f7d0e88e09025a6dbd600f9ad722d8cd76ecc1893ccc16d1499f8b4219c4e07c