[INFO] fetching crate smlr 0.1.3...
[INFO] building smlr-0.1.3 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate smlr 0.1.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate smlr 0.1.3
[INFO] finished tweaking crates.io crate smlr 0.1.3
[INFO] tweaked toml for crates.io crate smlr 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smlr 0.1.3 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] crate crates.io crate smlr 0.1.3 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ee7a5f850fc2efac9f4a3c56b433996b105dbd097cb730dc2d12f6b962c67c34
[INFO] running `Command { std: "docker" "start" "-a" "ee7a5f850fc2efac9f4a3c56b433996b105dbd097cb730dc2d12f6b962c67c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee7a5f850fc2efac9f4a3c56b433996b105dbd097cb730dc2d12f6b962c67c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee7a5f850fc2efac9f4a3c56b433996b105dbd097cb730dc2d12f6b962c67c34", kill_on_drop: false }`
[INFO] [stdout] ee7a5f850fc2efac9f4a3c56b433996b105dbd097cb730dc2d12f6b962c67c34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 550f56f9aac22b001bbe4ecf9ad3793113b9ff8a5a9762f2061d6b0e86cfd1c5
[INFO] running `Command { std: "docker" "start" "-a" "550f56f9aac22b001bbe4ecf9ad3793113b9ff8a5a9762f2061d6b0e86cfd1c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling subtle v2.2.3
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling eddie v0.4.2
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling blake2 v0.9.0
[INFO] [stderr]    Compiling smlr v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Indexer` is never used
[INFO] [stdout]   --> src/indexer.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait Indexer {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/indexer.rs:29:44
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(algo: ScoringAlgo, content: &str, path: Option<PathBuf>) -> Index {
[INFO] [stdout]    |                                            ^^^^                            ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(algo: ScoringAlgo, content: &str, path: Option<PathBuf>) -> Index<'_> {
[INFO] [stdout]    |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/indexer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Index<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 18 |     /// Reference to the content
[INFO] [stdout] 19 |     content: &'a str,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Index` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.88s
[INFO] running `Command { std: "docker" "inspect" "550f56f9aac22b001bbe4ecf9ad3793113b9ff8a5a9762f2061d6b0e86cfd1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "550f56f9aac22b001bbe4ecf9ad3793113b9ff8a5a9762f2061d6b0e86cfd1c5", kill_on_drop: false }`
[INFO] [stdout] 550f56f9aac22b001bbe4ecf9ad3793113b9ff8a5a9762f2061d6b0e86cfd1c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ccab95e62a9a209ef9f7f71fd949432e07a3fdaff5afd80c3b119ced234f7148
[INFO] running `Command { std: "docker" "start" "-a" "ccab95e62a9a209ef9f7f71fd949432e07a3fdaff5afd80c3b119ced234f7148", kill_on_drop: false }`
[INFO] [stdout] warning: trait `Indexer` is never used
[INFO] [stdout]   --> src/indexer.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait Indexer {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/indexer.rs:29:44
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(algo: ScoringAlgo, content: &str, path: Option<PathBuf>) -> Index {
[INFO] [stdout]    |                                            ^^^^                            ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(algo: ScoringAlgo, content: &str, path: Option<PathBuf>) -> Index<'_> {
[INFO] [stdout]    |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/indexer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Index<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 18 |     /// Reference to the content
[INFO] [stdout] 19 |     content: &'a str,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Index` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling smlr v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Indexer` is never used
[INFO] [stdout]   --> src/indexer.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait Indexer {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/indexer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Index<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 18 |     /// Reference to the content
[INFO] [stdout] 19 |     content: &'a str,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Index` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/indexer.rs:29:44
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(algo: ScoringAlgo, content: &str, path: Option<PathBuf>) -> Index {
[INFO] [stdout]    |                                            ^^^^                            ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(algo: ScoringAlgo, content: &str, path: Option<PathBuf>) -> Index<'_> {
[INFO] [stdout]    |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::convert::From::from` that must be used
[INFO] [stdout]    --> src/score.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         ScoringAlgo::from("junk");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let _ = ScoringAlgo::from("junk");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "ccab95e62a9a209ef9f7f71fd949432e07a3fdaff5afd80c3b119ced234f7148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccab95e62a9a209ef9f7f71fd949432e07a3fdaff5afd80c3b119ced234f7148", kill_on_drop: false }`
[INFO] [stdout] ccab95e62a9a209ef9f7f71fd949432e07a3fdaff5afd80c3b119ced234f7148