[INFO] fetching crate inventory 0.3.13...
[INFO] checking inventory-0.3.13 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate inventory 0.3.13 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate inventory 0.3.13 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate inventory 0.3.13
[INFO] finished tweaking crates.io crate inventory 0.3.13
[INFO] tweaked toml for crates.io crate inventory 0.3.13 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate inventory 0.3.13 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trybuild v1.0.85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0947c3f372e6e0d9ef7d0c2e075620dfd418dec5086844592832f26c1066116
[INFO] running `Command { std: "docker" "start" "-a" "c0947c3f372e6e0d9ef7d0c2e075620dfd418dec5086844592832f26c1066116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0947c3f372e6e0d9ef7d0c2e075620dfd418dec5086844592832f26c1066116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0947c3f372e6e0d9ef7d0c2e075620dfd418dec5086844592832f26c1066116", kill_on_drop: false }`
[INFO] [stdout] c0947c3f372e6e0d9ef7d0c2e075620dfd418dec5086844592832f26c1066116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 149eb69b46cc67987027eb6246c27c69065f14298464dbe172d54b408e8cc140
[INFO] running `Command { std: "docker" "start" "-a" "149eb69b46cc67987027eb6246c27c69065f14298464dbe172d54b408e8cc140", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling trybuild v1.0.85
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking dissimilar v1.0.7
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking inventory v0.3.13 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]     Checking basic-toml v0.1.7
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/test.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Thing(usize);
[INFO] [stdout]   |        ----- ^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Thing(());
[INFO] [stdout]   |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "149eb69b46cc67987027eb6246c27c69065f14298464dbe172d54b408e8cc140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149eb69b46cc67987027eb6246c27c69065f14298464dbe172d54b408e8cc140", kill_on_drop: false }`
[INFO] [stdout] 149eb69b46cc67987027eb6246c27c69065f14298464dbe172d54b408e8cc140