[INFO] fetching crate zedmq 0.7.0...
[INFO] checking zedmq-0.7.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate zedmq 0.7.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate zedmq 0.7.0 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 crates.io crate zedmq 0.7.0
[INFO] finished tweaking crates.io crate zedmq 0.7.0
[INFO] tweaked toml for crates.io crate zedmq 0.7.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate zedmq 0.7.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zmq-sys v0.11.0
[INFO] [stderr]   Downloaded metadeps v1.1.2
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded zmq v0.9.2
[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] c4caa8f760efb76dd07c66237fc0a586ae74b8f184e3923f79e2446eefe333e9
[INFO] running `Command { std: "docker" "start" "-a" "c4caa8f760efb76dd07c66237fc0a586ae74b8f184e3923f79e2446eefe333e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4caa8f760efb76dd07c66237fc0a586ae74b8f184e3923f79e2446eefe333e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4caa8f760efb76dd07c66237fc0a586ae74b8f184e3923f79e2446eefe333e9", kill_on_drop: false }`
[INFO] [stdout] c4caa8f760efb76dd07c66237fc0a586ae74b8f184e3923f79e2446eefe333e9
[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] 148531589f4491fb9f135bf91d6b6a019e6cd71bdcf00c337ecbdb00665e05e6
[INFO] running `Command { std: "docker" "start" "-a" "148531589f4491fb9f135bf91d6b6a019e6cd71bdcf00c337ecbdb00665e05e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]     Checking zedmq v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `codec::FrameBuf`
[INFO] [stdout]  --> src/socket_type/sub_t.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{codec::FrameBuf, stream::Stream};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bind` is never constructed
[INFO] [stdout]   --> src/stream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) enum Position<L, R> {
[INFO] [stdout]    |                 -------- variant in this enum
[INFO] [stdout] 11 |     Connect(L),
[INFO] [stdout] 12 |     Bind(R),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Position` 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: missing documentation for a struct
[INFO] [stdout]   --> src/socket_type/pub_t.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Pub {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]   --> src/socket_type/pub_t.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn send(&mut self, bytes: Vec<Vec<u8>>) -> io::Result<()> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stdout] warning: unused import: `codec::FrameBuf`
[INFO] [stdout]  --> src/socket_type/sub_t.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{codec::FrameBuf, stream::Stream};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bind` is never constructed
[INFO] [stdout]   --> src/stream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) enum Position<L, R> {
[INFO] [stdout]    |                 -------- variant in this enum
[INFO] [stdout] 11 |     Connect(L),
[INFO] [stdout] 12 |     Bind(R),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Position` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "148531589f4491fb9f135bf91d6b6a019e6cd71bdcf00c337ecbdb00665e05e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "148531589f4491fb9f135bf91d6b6a019e6cd71bdcf00c337ecbdb00665e05e6", kill_on_drop: false }`
[INFO] [stdout] 148531589f4491fb9f135bf91d6b6a019e6cd71bdcf00c337ecbdb00665e05e6
[INFO] checking zedmq-0.7.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate zedmq 0.7.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate zedmq 0.7.0 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 crates.io crate zedmq 0.7.0
[INFO] finished tweaking crates.io crate zedmq 0.7.0
[INFO] tweaked toml for crates.io crate zedmq 0.7.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate zedmq 0.7.0 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] 2ae5ae24b4edafed612eeb98fba7a6fe12c129581c7f74e6a5abcc33fe65a292
[INFO] running `Command { std: "docker" "start" "-a" "2ae5ae24b4edafed612eeb98fba7a6fe12c129581c7f74e6a5abcc33fe65a292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ae5ae24b4edafed612eeb98fba7a6fe12c129581c7f74e6a5abcc33fe65a292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ae5ae24b4edafed612eeb98fba7a6fe12c129581c7f74e6a5abcc33fe65a292", kill_on_drop: false }`
[INFO] [stdout] 2ae5ae24b4edafed612eeb98fba7a6fe12c129581c7f74e6a5abcc33fe65a292
[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] 85b1fe36794b21dce11ac22f419b1e252c4826d02711e5f788ec7d4ee31bb42b
[INFO] running `Command { std: "docker" "start" "-a" "85b1fe36794b21dce11ac22f419b1e252c4826d02711e5f788ec7d4ee31bb42b", kill_on_drop: false }`
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]     Checking zedmq v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `codec::FrameBuf`
[INFO] [stdout]  --> src/socket_type/sub_t.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{codec::FrameBuf, stream::Stream};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bind` is never constructed
[INFO] [stdout]   --> src/stream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) enum Position<L, R> {
[INFO] [stdout]    |                 -------- variant in this enum
[INFO] [stdout] 11 |     Connect(L),
[INFO] [stdout] 12 |     Bind(R),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Position` 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: missing documentation for a struct
[INFO] [stdout]   --> src/socket_type/pub_t.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Pub {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]   --> src/socket_type/pub_t.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn send(&mut self, bytes: Vec<Vec<u8>>) -> io::Result<()> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stdout] warning: unused import: `codec::FrameBuf`
[INFO] [stdout]  --> src/socket_type/sub_t.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{codec::FrameBuf, stream::Stream};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bind` is never constructed
[INFO] [stdout]   --> src/stream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) enum Position<L, R> {
[INFO] [stdout]    |                 -------- variant in this enum
[INFO] [stdout] 11 |     Connect(L),
[INFO] [stdout] 12 |     Bind(R),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Position` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "85b1fe36794b21dce11ac22f419b1e252c4826d02711e5f788ec7d4ee31bb42b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b1fe36794b21dce11ac22f419b1e252c4826d02711e5f788ec7d4ee31bb42b", kill_on_drop: false }`
[INFO] [stdout] 85b1fe36794b21dce11ac22f419b1e252c4826d02711e5f788ec7d4ee31bb42b