[INFO] fetching crate hybrid-clocks 0.5.3...
[INFO] testing hybrid-clocks-0.5.3 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate hybrid-clocks 0.5.3 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate hybrid-clocks 0.5.3
[INFO] finished tweaking crates.io crate hybrid-clocks 0.5.3
[INFO] tweaked toml for crates.io crate hybrid-clocks 0.5.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hybrid-clocks 0.5.3 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hybrid-clocks 0.5.3 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustversion v1.0.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.9
[INFO] [stderr]   Downloaded thiserror v1.0.9
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.11
[INFO] [stderr]   Downloaded proc-macro2 v1.0.6
[INFO] [stderr]   Downloaded itoa v0.4.4
[INFO] [stderr]   Downloaded hex-slice v0.1.4
[INFO] [stderr]   Downloaded time-macros-impl v0.1.0
[INFO] [stderr]   Downloaded ryu v1.0.2
[INFO] [stderr]   Downloaded time-macros v0.1.0
[INFO] [stderr]   Downloaded suppositions v0.1.4
[INFO] [stderr]   Downloaded serde_json v1.0.44
[INFO] [stderr]   Downloaded syn v1.0.11
[INFO] [stderr]   Downloaded time v0.2.4
[INFO] [stderr]   Downloaded libc v0.2.66
[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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 924a2799bbd906f63bd7bc27c30d7424e702ca28b6eda100032f8cad3bdad000
[INFO] running `Command { std: "docker" "start" "-a" "924a2799bbd906f63bd7bc27c30d7424e702ca28b6eda100032f8cad3bdad000", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "924a2799bbd906f63bd7bc27c30d7424e702ca28b6eda100032f8cad3bdad000", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924a2799bbd906f63bd7bc27c30d7424e702ca28b6eda100032f8cad3bdad000", kill_on_drop: false }`
[INFO] [stdout] 924a2799bbd906f63bd7bc27c30d7424e702ca28b6eda100032f8cad3bdad000
[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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdb84652a0f01fff44d06b0e30d84795f3a8dba5e67a8e420d3dbe817640556a
[INFO] running `Command { std: "docker" "start" "-a" "cdb84652a0f01fff44d06b0e30d84795f3a8dba5e67a8e420d3dbe817640556a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling thiserror v1.0.9
[INFO] [stderr]    Compiling hybrid-clocks v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: unused return value of `Duration::new` that must be used
[INFO] [stdout]   --> src/source/wall_ms.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         Duration::new(secs, nsecs.try_into().expect("internal error"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_must_use)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let _ = Duration::new(secs, nsecs.try_into().expect("internal error"));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hybrid-clocks` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cdb84652a0f01fff44d06b0e30d84795f3a8dba5e67a8e420d3dbe817640556a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb84652a0f01fff44d06b0e30d84795f3a8dba5e67a8e420d3dbe817640556a", kill_on_drop: false }`
[INFO] [stdout] cdb84652a0f01fff44d06b0e30d84795f3a8dba5e67a8e420d3dbe817640556a