[INFO] fetching crate stratus 0.1.1...
[INFO] checking stratus-0.1.1 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate stratus 0.1.1 into /workspace/builds/worker-5-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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stratus 0.1.1 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "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] [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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de21906e2762b996922a32b503489cc93870eed28eb578bc098f4292a9e6d87c
[INFO] running `Command { std: "docker" "start" "-a" "de21906e2762b996922a32b503489cc93870eed28eb578bc098f4292a9e6d87c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de21906e2762b996922a32b503489cc93870eed28eb578bc098f4292a9e6d87c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de21906e2762b996922a32b503489cc93870eed28eb578bc098f4292a9e6d87c", kill_on_drop: false }`
[INFO] [stdout] de21906e2762b996922a32b503489cc93870eed28eb578bc098f4292a9e6d87c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 750fc796ba7543a7b14c25bd1b2997a7ffeddb342d70be2576f9cb0c9b3784fc
[INFO] running `Command { std: "docker" "start" "-a" "750fc796ba7543a7b14c25bd1b2997a7ffeddb342d70be2576f9cb0c9b3784fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[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] [stdout] warning: feature `test` is declared but not used
[INFO] [stdout]  --> tests/timer.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.54s
[INFO] running `Command { std: "docker" "inspect" "750fc796ba7543a7b14c25bd1b2997a7ffeddb342d70be2576f9cb0c9b3784fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "750fc796ba7543a7b14c25bd1b2997a7ffeddb342d70be2576f9cb0c9b3784fc", kill_on_drop: false }`
[INFO] [stdout] 750fc796ba7543a7b14c25bd1b2997a7ffeddb342d70be2576f9cb0c9b3784fc