[INFO] cloning repository https://github.com/vorner/pgz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vorner/pgz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvorner%2Fpgz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvorner%2Fpgz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f73f3c3b7d48abc77b63a8d9d564d48b3f05a808
[INFO] checking vorner/pgz against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvorner%2Fpgz" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vorner/pgz on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vorner/pgz
[INFO] finished tweaking git repo https://github.com/vorner/pgz
[INFO] tweaked toml for git repo https://github.com/vorner/pgz written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/vorner/pgz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95329d67e82d6b90429812ef1f233dac97ff14328c27d054691f49074532bd59
[INFO] running `Command { std: "docker" "start" "-a" "95329d67e82d6b90429812ef1f233dac97ff14328c27d054691f49074532bd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95329d67e82d6b90429812ef1f233dac97ff14328c27d054691f49074532bd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95329d67e82d6b90429812ef1f233dac97ff14328c27d054691f49074532bd59", kill_on_drop: false }`
[INFO] [stdout] 95329d67e82d6b90429812ef1f233dac97ff14328c27d054691f49074532bd59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef2c48c2102051a7df046ce202f7776fa44dd54b433154648b394c8f6db017d8
[INFO] running `Command { std: "docker" "start" "-a" "ef2c48c2102051a7df046ce202f7776fa44dd54b433154648b394c8f6db017d8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking futures v0.1.17
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking clap v2.28.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]     Checking futures-cpupool v0.1.7
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking structopt v0.1.6
[INFO] [stderr]     Checking backtrace v0.3.4
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking pgz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Buffered` in tuple element 0 that must be used
[INFO] [stdout]   --> src/main.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | /     in_receiver
[INFO] [stdout] 85 | |         .map_err(|()| failure::err_msg("Error on channel"))
[INFO] [stdout] 86 | |         .map(|chunk| {
[INFO] [stdout] 87 | |              pool.spawn(future::lazy(move || {
[INFO] [stdout] ...  |
[INFO] [stdout] 92 | |         .forward(out_sender)
[INFO] [stdout] 93 | |         .wait()?;
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Buffered` in tuple element 0 that must be used
[INFO] [stdout]   --> src/main.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | /     in_receiver
[INFO] [stdout] 85 | |         .map_err(|()| failure::err_msg("Error on channel"))
[INFO] [stdout] 86 | |         .map(|chunk| {
[INFO] [stdout] 87 | |              pool.spawn(future::lazy(move || {
[INFO] [stdout] ...  |
[INFO] [stdout] 92 | |         .forward(out_sender)
[INFO] [stdout] 93 | |         .wait()?;
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.93s
[INFO] running `Command { std: "docker" "inspect" "ef2c48c2102051a7df046ce202f7776fa44dd54b433154648b394c8f6db017d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef2c48c2102051a7df046ce202f7776fa44dd54b433154648b394c8f6db017d8", kill_on_drop: false }`
[INFO] [stdout] ef2c48c2102051a7df046ce202f7776fa44dd54b433154648b394c8f6db017d8