[INFO] fetching crate rustversion-msrv 0.100.0...
[INFO] building rustversion-msrv-0.100.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate rustversion-msrv 0.100.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rustversion-msrv 0.100.0
[INFO] finished tweaking crates.io crate rustversion-msrv 0.100.0
[INFO] tweaked toml for crates.io crate rustversion-msrv 0.100.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustversion-msrv 0.100.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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 28 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6df5d6f430709ab77414cee4c50b63441bced2b6c385b245a253956caf450e7
[INFO] running `Command { std: "docker" "start" "-a" "c6df5d6f430709ab77414cee4c50b63441bced2b6c385b245a253956caf450e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6df5d6f430709ab77414cee4c50b63441bced2b6c385b245a253956caf450e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6df5d6f430709ab77414cee4c50b63441bced2b6c385b245a253956caf450e7", kill_on_drop: false }`
[INFO] [stdout] c6df5d6f430709ab77414cee4c50b63441bced2b6c385b245a253956caf450e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07672a0571b9459735cdc9c4651d8391710e87dc2572ca193d8b90caf81b71da
[INFO] running `Command { std: "docker" "start" "-a" "07672a0571b9459735cdc9c4651d8391710e87dc2572ca193d8b90caf81b71da", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion-msrv v0.100.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Date` is never constructed
[INFO] [stdout]   --> build/rustc.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Date {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Release` is never constructed
[INFO] [stdout]  --> src/release.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Release {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[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 1.28s
[INFO] running `Command { std: "docker" "inspect" "07672a0571b9459735cdc9c4651d8391710e87dc2572ca193d8b90caf81b71da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07672a0571b9459735cdc9c4651d8391710e87dc2572ca193d8b90caf81b71da", kill_on_drop: false }`
[INFO] [stdout] 07672a0571b9459735cdc9c4651d8391710e87dc2572ca193d8b90caf81b71da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a05c3821907b5371de4b1ce453c0b6836fc13e7138dab7dc9716f7abdf3986b
[INFO] running `Command { std: "docker" "start" "-a" "9a05c3821907b5371de4b1ce453c0b6836fc13e7138dab7dc9716f7abdf3986b", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]    Compiling serde_spanned v1.0.2
[INFO] [stderr]    Compiling toml_writer v1.0.3
[INFO] [stdout] warning: struct `Date` is never constructed
[INFO] [stdout]   --> build/rustc.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Date {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling dissimilar v1.0.10
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling rustversion-msrv v0.100.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Release` is never constructed
[INFO] [stdout]  --> src/release.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Release {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling toml_parser v1.0.3
[INFO] [stderr]    Compiling toml v0.9.7
[INFO] [stderr]    Compiling trybuild v1.0.111
[INFO] [stdout] warning: struct `Release` is never constructed
[INFO] [stdout]  --> src/release.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Release {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[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 15.22s
[INFO] running `Command { std: "docker" "inspect" "9a05c3821907b5371de4b1ce453c0b6836fc13e7138dab7dc9716f7abdf3986b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a05c3821907b5371de4b1ce453c0b6836fc13e7138dab7dc9716f7abdf3986b", kill_on_drop: false }`
[INFO] [stdout] 9a05c3821907b5371de4b1ce453c0b6836fc13e7138dab7dc9716f7abdf3986b
