[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] f3802b23bd362fd3edfba6b918d97c034fed4b56
[INFO] checking vorner/pgz against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvorner%2Fpgz" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vorner/pgz on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt v0.1.7
[INFO] [stderr]   Downloaded structopt-derive v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab85de828ff47944000375a2fa7be6b6d80f26af3aa9d889a5d168821e2bbcfa
[INFO] running `Command { std: "docker" "start" "-a" "ab85de828ff47944000375a2fa7be6b6d80f26af3aa9d889a5d168821e2bbcfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab85de828ff47944000375a2fa7be6b6d80f26af3aa9d889a5d168821e2bbcfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab85de828ff47944000375a2fa7be6b6d80f26af3aa9d889a5d168821e2bbcfa", kill_on_drop: false }`
[INFO] [stdout] ab85de828ff47944000375a2fa7be6b6d80f26af3aa9d889a5d168821e2bbcfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86ca23ad780c554d219c4e385fd3e5dcd9e03f10adadc4ae2f13b8f5beda7a2a
[INFO] running `Command { std: "docker" "start" "-a" "86ca23ad780c554d219c4e385fd3e5dcd9e03f10adadc4ae2f13b8f5beda7a2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking structopt v0.1.7
[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:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | /     in_receiver
[INFO] [stdout] 86 | |         .map_err(|()| anyhow!("Error on channel"))
[INFO] [stdout] 87 | |         .map(|chunk| {
[INFO] [stdout] 88 | |              pool.spawn(future::lazy(move || {
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |         .forward(out_sender)
[INFO] [stdout] 94 | |         .wait()?;
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Buffered` in tuple element 0 that must be used
[INFO] [stdout]   --> src/main.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | /     in_receiver
[INFO] [stdout] 86 | |         .map_err(|()| anyhow!("Error on channel"))
[INFO] [stdout] 87 | |         .map(|chunk| {
[INFO] [stdout] 88 | |              pool.spawn(future::lazy(move || {
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |         .forward(out_sender)
[INFO] [stdout] 94 | |         .wait()?;
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[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` profile [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `Command { std: "docker" "inspect" "86ca23ad780c554d219c4e385fd3e5dcd9e03f10adadc4ae2f13b8f5beda7a2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86ca23ad780c554d219c4e385fd3e5dcd9e03f10adadc4ae2f13b8f5beda7a2a", kill_on_drop: false }`
[INFO] [stdout] 86ca23ad780c554d219c4e385fd3e5dcd9e03f10adadc4ae2f13b8f5beda7a2a
[INFO] checking vorner/pgz against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvorner%2Fpgz" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vorner/pgz on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92a040d7b3cd8d0ad883d46490f356a78ef133c35da3629cdb4fecbf7aa8ffca
[INFO] running `Command { std: "docker" "start" "-a" "92a040d7b3cd8d0ad883d46490f356a78ef133c35da3629cdb4fecbf7aa8ffca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92a040d7b3cd8d0ad883d46490f356a78ef133c35da3629cdb4fecbf7aa8ffca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a040d7b3cd8d0ad883d46490f356a78ef133c35da3629cdb4fecbf7aa8ffca", kill_on_drop: false }`
[INFO] [stdout] 92a040d7b3cd8d0ad883d46490f356a78ef133c35da3629cdb4fecbf7aa8ffca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3702408df38ce516ed11571bc6c265dce0f1c37fbd92db6fb2924efa211d1ec8
[INFO] running `Command { std: "docker" "start" "-a" "3702408df38ce516ed11571bc6c265dce0f1c37fbd92db6fb2924efa211d1ec8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]     Checking structopt v0.1.7
[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:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | /     in_receiver
[INFO] [stdout] 86 | |         .map_err(|()| anyhow!("Error on channel"))
[INFO] [stdout] 87 | |         .map(|chunk| {
[INFO] [stdout] 88 | |              pool.spawn(future::lazy(move || {
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |         .forward(out_sender)
[INFO] [stdout] 94 | |         .wait()?;
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Buffered` in tuple element 0 that must be used
[INFO] [stdout]   --> src/main.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | /     in_receiver
[INFO] [stdout] 86 | |         .map_err(|()| anyhow!("Error on channel"))
[INFO] [stdout] 87 | |         .map(|chunk| {
[INFO] [stdout] 88 | |              pool.spawn(future::lazy(move || {
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |         .forward(out_sender)
[INFO] [stdout] 94 | |         .wait()?;
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[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` profile [unoptimized + debuginfo] target(s) in 5.61s
[INFO] running `Command { std: "docker" "inspect" "3702408df38ce516ed11571bc6c265dce0f1c37fbd92db6fb2924efa211d1ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3702408df38ce516ed11571bc6c265dce0f1c37fbd92db6fb2924efa211d1ec8", kill_on_drop: false }`
[INFO] [stdout] 3702408df38ce516ed11571bc6c265dce0f1c37fbd92db6fb2924efa211d1ec8