[INFO] fetching crate more-options 3.3.0...
[INFO] building more-options-3.3.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate more-options 3.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate more-options 3.3.0
[INFO] finished tweaking crates.io crate more-options 3.3.0
[INFO] tweaked toml for crates.io crate more-options 3.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate more-options 3.3.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--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]      Locking 64 packages to latest compatible versions
[INFO] [stderr]       Adding test-case v2.2.2 (available: v3.3.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maybe-impl v0.1.0
[INFO] [stderr]   Downloaded more-changetoken v2.0.1
[INFO] [stderr]   Downloaded test-case-macros v2.2.2
[INFO] [stderr]   Downloaded test-case v2.2.2
[INFO] [stderr]   Downloaded more-config v2.1.5
[INFO] [stderr]   Downloaded more-di v3.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 709a23e015f3ac78b222a19326f137b9ab2c32223af34053c7e574a5f876e7e7
[INFO] running `Command { std: "docker" "start" "-a" "709a23e015f3ac78b222a19326f137b9ab2c32223af34053c7e574a5f876e7e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "709a23e015f3ac78b222a19326f137b9ab2c32223af34053c7e574a5f876e7e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709a23e015f3ac78b222a19326f137b9ab2c32223af34053c7e574a5f876e7e7", kill_on_drop: false }`
[INFO] [stdout] 709a23e015f3ac78b222a19326f137b9ab2c32223af34053c7e574a5f876e7e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7372ceba00de3724a6e18d4c4dcd4b42a676d2fcf9c1759c55140acea46f2dd0
[INFO] running `Command { std: "docker" "start" "-a" "7372ceba00de3724a6e18d4c4dcd4b42a676d2fcf9c1759c55140acea46f2dd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling filetime v0.2.26
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling notify v6.1.1
[INFO] [stderr]    Compiling more-changetoken v2.0.1
[INFO] [stderr]    Compiling more-options v3.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/monitor.rs:10:35
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Subscription<T: Value>(Arc<dyn Fn(Option<&str>, Ref<T>) + Send + Sync>);
[INFO] [stdout]    |            ------------           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[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 2.46s
[INFO] running `Command { std: "docker" "inspect" "7372ceba00de3724a6e18d4c4dcd4b42a676d2fcf9c1759c55140acea46f2dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7372ceba00de3724a6e18d4c4dcd4b42a676d2fcf9c1759c55140acea46f2dd0", kill_on_drop: false }`
[INFO] [stdout] 7372ceba00de3724a6e18d4c4dcd4b42a676d2fcf9c1759c55140acea46f2dd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea9c814af240c65ea9d4a32b7f1ceb545dc25a36688e83ad2ca074ca4ef43795
[INFO] running `Command { std: "docker" "start" "-a" "ea9c814af240c65ea9d4a32b7f1ceb545dc25a36688e83ad2ca074ca4ef43795", kill_on_drop: false }`
[INFO] [stderr]    Compiling more-di v3.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling test-case-macros v2.2.2
[INFO] [stderr]    Compiling test-case v2.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling more-config v2.1.5
[INFO] [stderr]    Compiling more-options v3.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/monitor.rs:10:35
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Subscription<T: Value>(Arc<dyn Fn(Option<&str>, Ref<T>) + Send + Sync>);
[INFO] [stdout]    |            ------------           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.07s
[INFO] running `Command { std: "docker" "inspect" "ea9c814af240c65ea9d4a32b7f1ceb545dc25a36688e83ad2ca074ca4ef43795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea9c814af240c65ea9d4a32b7f1ceb545dc25a36688e83ad2ca074ca4ef43795", kill_on_drop: false }`
[INFO] [stdout] ea9c814af240c65ea9d4a32b7f1ceb545dc25a36688e83ad2ca074ca4ef43795