[INFO] fetching crate blunders-engine 0.1.0...
[INFO] checking blunders-engine-0.1.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate blunders-engine 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate blunders-engine 0.1.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blunders-engine 0.1.0
[INFO] finished tweaking crates.io crate blunders-engine 0.1.0
[INFO] tweaked toml for crates.io crate blunders-engine 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86e77b7f18fbc011c87ecb9fb581fc0500d6b897772397f8f0288f2b3b7dbabb
[INFO] running `Command { std: "docker" "start" "-a" "86e77b7f18fbc011c87ecb9fb581fc0500d6b897772397f8f0288f2b3b7dbabb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86e77b7f18fbc011c87ecb9fb581fc0500d6b897772397f8f0288f2b3b7dbabb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e77b7f18fbc011c87ecb9fb581fc0500d6b897772397f8f0288f2b3b7dbabb", kill_on_drop: false }`
[INFO] [stdout] 86e77b7f18fbc011c87ecb9fb581fc0500d6b897772397f8f0288f2b3b7dbabb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1ab169734799e9c3573b7d2709290dfbe6f42b07e899df637b310061be4463b
[INFO] running `Command { std: "docker" "start" "-a" "a1ab169734799e9c3573b7d2709290dfbe6f42b07e899df637b310061be4463b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking blunders-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]   --> src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]   --> src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.83s
[INFO] running `Command { std: "docker" "inspect" "a1ab169734799e9c3573b7d2709290dfbe6f42b07e899df637b310061be4463b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ab169734799e9c3573b7d2709290dfbe6f42b07e899df637b310061be4463b", kill_on_drop: false }`
[INFO] [stdout] a1ab169734799e9c3573b7d2709290dfbe6f42b07e899df637b310061be4463b
[INFO] checking blunders-engine-0.1.0 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate blunders-engine 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate blunders-engine 0.1.0 on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blunders-engine 0.1.0
[INFO] finished tweaking crates.io crate blunders-engine 0.1.0
[INFO] tweaked toml for crates.io crate blunders-engine 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb82f4df36ecd9538e640c71409294ebf18cfc97833024d7f8709ce4914ba0d7
[INFO] running `Command { std: "docker" "start" "-a" "eb82f4df36ecd9538e640c71409294ebf18cfc97833024d7f8709ce4914ba0d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb82f4df36ecd9538e640c71409294ebf18cfc97833024d7f8709ce4914ba0d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb82f4df36ecd9538e640c71409294ebf18cfc97833024d7f8709ce4914ba0d7", kill_on_drop: false }`
[INFO] [stdout] eb82f4df36ecd9538e640c71409294ebf18cfc97833024d7f8709ce4914ba0d7
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ff94017f42aa86ce77487fd4cf6b68bae6f1b2492f0feab13061c6c46cb0209
[INFO] running `Command { std: "docker" "start" "-a" "2ff94017f42aa86ce77487fd4cf6b68bae6f1b2492f0feab13061c6c46cb0209", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking blunders-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]   --> src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]   --> src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.65s
[INFO] running `Command { std: "docker" "inspect" "2ff94017f42aa86ce77487fd4cf6b68bae6f1b2492f0feab13061c6c46cb0209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff94017f42aa86ce77487fd4cf6b68bae6f1b2492f0feab13061c6c46cb0209", kill_on_drop: false }`
[INFO] [stdout] 2ff94017f42aa86ce77487fd4cf6b68bae6f1b2492f0feab13061c6c46cb0209
