[INFO] fetching crate amen 0.0.3...
[INFO] building amen-0.0.3 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate amen 0.0.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate amen 0.0.3 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amen 0.0.3
[INFO] finished tweaking crates.io crate amen 0.0.3
[INFO] tweaked toml for crates.io crate amen 0.0.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate amen 0.0.3 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded louds-rs v0.4.0
[INFO] [stderr]   Downloaded fid-rs v0.1.1
[INFO] [stderr]   Downloaded trie-rs v0.1.1
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51f2abc7d0cfd7a8ee4c648879314b4fa609682720fa3c8f6e5ff1f240e6d1f2
[INFO] running `Command { std: "docker" "start" "-a" "51f2abc7d0cfd7a8ee4c648879314b4fa609682720fa3c8f6e5ff1f240e6d1f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51f2abc7d0cfd7a8ee4c648879314b4fa609682720fa3c8f6e5ff1f240e6d1f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51f2abc7d0cfd7a8ee4c648879314b4fa609682720fa3c8f6e5ff1f240e6d1f2", kill_on_drop: false }`
[INFO] [stdout] 51f2abc7d0cfd7a8ee4c648879314b4fa609682720fa3c8f6e5ff1f240e6d1f2
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed4131dfd04a42d992264dd88a62b6dc7ac916402dca6cb606ff4b4fde0044df
[INFO] running `Command { std: "docker" "start" "-a" "ed4131dfd04a42d992264dd88a62b6dc7ac916402dca6cb606ff4b4fde0044df", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling fid-rs v0.1.1
[INFO] [stderr]    Compiling louds-rs v0.4.0
[INFO] [stderr]    Compiling trie-rs v0.1.1
[INFO] [stderr]    Compiling amen v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `abbrev` is never read
[INFO] [stdout]  --> src/abbrev.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct AbbrevPhrase<'a> {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     pub phrase: &'a str,
[INFO] [stdout] 6 |     pub abbrev: String,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.11s
[INFO] running `Command { std: "docker" "inspect" "ed4131dfd04a42d992264dd88a62b6dc7ac916402dca6cb606ff4b4fde0044df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed4131dfd04a42d992264dd88a62b6dc7ac916402dca6cb606ff4b4fde0044df", kill_on_drop: false }`
[INFO] [stdout] ed4131dfd04a42d992264dd88a62b6dc7ac916402dca6cb606ff4b4fde0044df
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c337cc0269f5482a9766956009e5d459739358df8814891e298e2761cae7e871
[INFO] running `Command { std: "docker" "start" "-a" "c337cc0269f5482a9766956009e5d459739358df8814891e298e2761cae7e871", kill_on_drop: false }`
[INFO] [stdout] warning: field `abbrev` is never read
[INFO] [stdout]  --> src/abbrev.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct AbbrevPhrase<'a> {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     pub phrase: &'a str,
[INFO] [stdout] 6 |     pub abbrev: String,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling amen v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `abbrev` is never read
[INFO] [stdout]  --> src/abbrev.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct AbbrevPhrase<'a> {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     pub phrase: &'a str,
[INFO] [stdout] 6 |     pub abbrev: String,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "c337cc0269f5482a9766956009e5d459739358df8814891e298e2761cae7e871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c337cc0269f5482a9766956009e5d459739358df8814891e298e2761cae7e871", kill_on_drop: false }`
[INFO] [stdout] c337cc0269f5482a9766956009e5d459739358df8814891e298e2761cae7e871