[INFO] fetching crate cargo-nono 0.1.9...
[INFO] checking cargo-nono-0.1.9 against master#b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1 for pr-156992
[INFO] extracting crate cargo-nono 0.1.9 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate cargo-nono 0.1.9
[INFO] finished tweaking crates.io crate cargo-nono 0.1.9
[INFO] tweaked toml for crates.io crate cargo-nono 0.1.9 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-nono 0.1.9 on toolchain b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cargo-nono 0.1.9 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" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.23
[INFO] [stderr]   Downloaded serde_derive v1.0.116
[INFO] [stderr]   Downloaded console v0.7.7
[INFO] [stderr]   Downloaded predicates-tree v1.0.0
[INFO] [stderr]   Downloaded treeline v0.1.0
[INFO] [stderr]   Downloaded instant v0.1.7
[INFO] [stderr]   Downloaded hermit-abi v0.1.16
[INFO] [stderr]   Downloaded serde v1.0.116
[INFO] [stderr]   Downloaded assert_cmd v0.11.1
[INFO] [stderr]   Downloaded cargo_metadata v0.8.2
[INFO] [stderr]   Downloaded predicates-core v1.0.0
[INFO] [stderr]   Downloaded termios v0.3.2
[INFO] [stderr]   Downloaded cloudabi v0.1.0
[INFO] [stderr]   Downloaded lock_api v0.4.1
[INFO] [stderr]   Downloaded escargot v0.4.0
[INFO] [stderr]   Downloaded predicates v1.0.5
[INFO] [stderr]   Downloaded smallvec v1.4.2
[INFO] [stderr]   Downloaded parking_lot v0.11.0
[INFO] [stderr]   Downloaded parking_lot_core v0.8.0
[INFO] [stderr]   Downloaded syn v1.0.42
[INFO] [stderr]   Downloaded libc v0.2.77
[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" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2091df416e9559198ac550b2b4834301f0e84cc22556a0a3d79035640dc513d7
[INFO] running `Command { std: "docker" "start" "-a" "2091df416e9559198ac550b2b4834301f0e84cc22556a0a3d79035640dc513d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2091df416e9559198ac550b2b4834301f0e84cc22556a0a3d79035640dc513d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2091df416e9559198ac550b2b4834301f0e84cc22556a0a3d79035640dc513d7", kill_on_drop: false }`
[INFO] [stdout] 2091df416e9559198ac550b2b4834301f0e84cc22556a0a3d79035640dc513d7
[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" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f82441afcab496bf389ce710b4393dfc83e2ad740a2880e626c13e8c7a7c328
[INFO] running `Command { std: "docker" "start" "-a" "2f82441afcab496bf389ce710b4393dfc83e2ad740a2880e626c13e8c7a7c328", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling cargo-nono v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking cargo_metadata v0.8.2
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stdout] warning: field `item_tree` is never read
[INFO] [stdout]   --> src/check_source.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct UseStdStmt {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 24 |     src_path: PathBuf,
[INFO] [stdout] 25 |     item_tree: syn::UseTree,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UseStdStmt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `item_tree` is never read
[INFO] [stdout]   --> src/check_source.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct UseStdStmt {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 24 |     src_path: PathBuf,
[INFO] [stdout] 25 |     item_tree: syn::UseTree,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UseStdStmt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 20.61s
[INFO] running `Command { std: "docker" "inspect" "2f82441afcab496bf389ce710b4393dfc83e2ad740a2880e626c13e8c7a7c328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f82441afcab496bf389ce710b4393dfc83e2ad740a2880e626c13e8c7a7c328", kill_on_drop: false }`
[INFO] [stdout] 2f82441afcab496bf389ce710b4393dfc83e2ad740a2880e626c13e8c7a7c328
