[INFO] fetching crate peshming 0.4.1...
[INFO] checking peshming-0.4.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate peshming 0.4.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate peshming 0.4.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peshming 0.4.1
[INFO] finished tweaking crates.io crate peshming 0.4.1
[INFO] tweaked toml for crates.io crate peshming 0.4.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate peshming 0.4.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-anyhow-logger v0.1.0
[INFO] [stderr]   Downloaded tokio-icmp-echo v0.4.0
[INFO] [stderr]   Downloaded lock_api v0.4.3
[INFO] [stderr]   Downloaded protobuf v2.23.0
[INFO] [stderr]   Downloaded prometheus v0.12.0
[INFO] [stderr]   Downloaded fern v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 183b3d6a918e78b1437bc4af428d8848392930243624885714bc329f1dd0d038
[INFO] running `Command { std: "docker" "start" "-a" "183b3d6a918e78b1437bc4af428d8848392930243624885714bc329f1dd0d038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "183b3d6a918e78b1437bc4af428d8848392930243624885714bc329f1dd0d038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "183b3d6a918e78b1437bc4af428d8848392930243624885714bc329f1dd0d038", kill_on_drop: false }`
[INFO] [stdout] 183b3d6a918e78b1437bc4af428d8848392930243624885714bc329f1dd0d038
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5e059f5a1c099b83a9631bb21dd5e17bedaed1166a23c0e4ec5bb9d94249608
[INFO] running `Command { std: "docker" "start" "-a" "f5e059f5a1c099b83a9631bb21dd5e17bedaed1166a23c0e4ec5bb9d94249608", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling protobuf v2.23.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking httpdate v1.0.0
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking async-anyhow-logger v0.1.0
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking tokio-icmp-echo v0.4.0
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking hyper v0.14.7
[INFO] [stderr]     Checking peshming v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Counter` is imported redundantly
[INFO] [stdout]   --> src/metrics.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 30 | use prometheus::*;
[INFO] [stdout]    |     ------------- the item `Counter` is already imported here
[INFO] [stdout] 31 | use prometheus::{Counter, Gauge, HistogramVec, TextEncoder};
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Counter` is imported redundantly
[INFO] [stdout]   --> src/metrics.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 30 | use prometheus::*;
[INFO] [stdout]    |     ------------- the item `Counter` is already imported here
[INFO] [stdout] 31 | use prometheus::{Counter, Gauge, HistogramVec, TextEncoder};
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Gauge` is imported redundantly
[INFO] [stdout]   --> src/metrics.rs:31:27
[INFO] [stdout]    |
[INFO] [stdout] 30 | use prometheus::*;
[INFO] [stdout]    |     ------------- the item `Gauge` is already imported here
[INFO] [stdout] 31 | use prometheus::{Counter, Gauge, HistogramVec, TextEncoder};
[INFO] [stdout]    |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HistogramVec` is imported redundantly
[INFO] [stdout]   --> src/metrics.rs:31:34
[INFO] [stdout]    |
[INFO] [stdout] 30 | use prometheus::*;
[INFO] [stdout]    |     ------------- the item `HistogramVec` is already imported here
[INFO] [stdout] 31 | use prometheus::{Counter, Gauge, HistogramVec, TextEncoder};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TextEncoder` is imported redundantly
[INFO] [stdout]   --> src/metrics.rs:31:48
[INFO] [stdout]    |
[INFO] [stdout] 30 | use prometheus::*;
[INFO] [stdout]    |     ------------- the item `TextEncoder` is already imported here
[INFO] [stdout] 31 | use prometheus::{Counter, Gauge, HistogramVec, TextEncoder};
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Gauge` is imported redundantly
[INFO] [stdout]   --> src/metrics.rs:31:27
[INFO] [stdout]    |
[INFO] [stdout] 30 | use prometheus::*;
[INFO] [stdout]    |     ------------- the item `Gauge` is already imported here
[INFO] [stdout] 31 | use prometheus::{Counter, Gauge, HistogramVec, TextEncoder};
[INFO] [stdout]    |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HistogramVec` is imported redundantly
[INFO] [stdout]   --> src/metrics.rs:31:34
[INFO] [stdout]    |
[INFO] [stdout] 30 | use prometheus::*;
[INFO] [stdout]    |     ------------- the item `HistogramVec` is already imported here
[INFO] [stdout] 31 | use prometheus::{Counter, Gauge, HistogramVec, TextEncoder};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TextEncoder` is imported redundantly
[INFO] [stdout]   --> src/metrics.rs:31:48
[INFO] [stdout]    |
[INFO] [stdout] 30 | use prometheus::*;
[INFO] [stdout]    |     ------------- the item `TextEncoder` is already imported here
[INFO] [stdout] 31 | use prometheus::{Counter, Gauge, HistogramVec, TextEncoder};
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.94s
[INFO] running `Command { std: "docker" "inspect" "f5e059f5a1c099b83a9631bb21dd5e17bedaed1166a23c0e4ec5bb9d94249608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5e059f5a1c099b83a9631bb21dd5e17bedaed1166a23c0e4ec5bb9d94249608", kill_on_drop: false }`
[INFO] [stdout] f5e059f5a1c099b83a9631bb21dd5e17bedaed1166a23c0e4ec5bb9d94249608