[INFO] fetching crate smlr 0.1.3...
[INFO] checking smlr-0.1.3 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate smlr 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate smlr 0.1.3 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-6-tc1/source/Cargo.toml
[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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded subtle v2.2.3
[INFO] [stderr]   Downloaded blake2 v0.9.0
[INFO] [stderr]   Downloaded eddie v0.4.2
[INFO] [stderr]   Downloaded serde_derive v1.0.115
[INFO] [stderr]   Downloaded syn v1.0.38
[INFO] [stderr]   Downloaded libc v0.2.74
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1da4bcce43a74c3f4679f1e41ebb3af1416e9e21fefad612797b69137c5aeb33
[INFO] running `Command { std: "docker" "start" "-a" "1da4bcce43a74c3f4679f1e41ebb3af1416e9e21fefad612797b69137c5aeb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1da4bcce43a74c3f4679f1e41ebb3af1416e9e21fefad612797b69137c5aeb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1da4bcce43a74c3f4679f1e41ebb3af1416e9e21fefad612797b69137c5aeb33", kill_on_drop: false }`
[INFO] [stdout] 1da4bcce43a74c3f4679f1e41ebb3af1416e9e21fefad612797b69137c5aeb33
[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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3705989a503667f105074806ae81a6d3e35c9158d6496534a68706372b847638
[INFO] running `Command { std: "docker" "start" "-a" "3705989a503667f105074806ae81a6d3e35c9158d6496534a68706372b847638", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling typenum v1.12.0
[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 generic-array v0.14.4
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking eddie v0.4.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking blake2 v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking 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)]` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` 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: 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)]` 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] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.95s
[INFO] running `Command { std: "docker" "inspect" "3705989a503667f105074806ae81a6d3e35c9158d6496534a68706372b847638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3705989a503667f105074806ae81a6d3e35c9158d6496534a68706372b847638", kill_on_drop: false }`
[INFO] [stdout] 3705989a503667f105074806ae81a6d3e35c9158d6496534a68706372b847638
[INFO] checking smlr-0.1.3 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate smlr 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate smlr 0.1.3 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-6-tc2/source/Cargo.toml
[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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f04ab4cf56e877d99125e3c2407b36567709c16c64aef4320a70a48a619e3dab
[INFO] running `Command { std: "docker" "start" "-a" "f04ab4cf56e877d99125e3c2407b36567709c16c64aef4320a70a48a619e3dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f04ab4cf56e877d99125e3c2407b36567709c16c64aef4320a70a48a619e3dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f04ab4cf56e877d99125e3c2407b36567709c16c64aef4320a70a48a619e3dab", kill_on_drop: false }`
[INFO] [stdout] f04ab4cf56e877d99125e3c2407b36567709c16c64aef4320a70a48a619e3dab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ce65452f8af8b8ac4cfa2a722a8c7a0a36a3bb05fce570b6a59bd06d04e0435
[INFO] running `Command { std: "docker" "start" "-a" "3ce65452f8af8b8ac4cfa2a722a8c7a0a36a3bb05fce570b6a59bd06d04e0435", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking eddie v0.4.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking blake2 v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking 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)]` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` 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: 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)]` 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] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.08s
[INFO] running `Command { std: "docker" "inspect" "3ce65452f8af8b8ac4cfa2a722a8c7a0a36a3bb05fce570b6a59bd06d04e0435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ce65452f8af8b8ac4cfa2a722a8c7a0a36a3bb05fce570b6a59bd06d04e0435", kill_on_drop: false }`
[INFO] [stdout] 3ce65452f8af8b8ac4cfa2a722a8c7a0a36a3bb05fce570b6a59bd06d04e0435