[INFO] cloning repository https://github.com/zoranzaric/emnify_hose
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zoranzaric/emnify_hose" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzoranzaric%2Femnify_hose", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzoranzaric%2Femnify_hose'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35f4fd6e3b915ddef8c20a515be1bd23364a1fbc
[INFO] checking zoranzaric/emnify_hose against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzoranzaric%2Femnify_hose" "/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/zoranzaric/emnify_hose 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 git repo https://github.com/zoranzaric/emnify_hose
[INFO] finished tweaking git repo https://github.com/zoranzaric/emnify_hose
[INFO] tweaked toml for git repo https://github.com/zoranzaric/emnify_hose written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zoranzaric/emnify_hose 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]  Downloading crates ...
[INFO] [stderr]   Downloaded hyper v0.11.6
[INFO] [stderr]   Downloaded tokio-core v0.1.10
[INFO] [stderr]   Downloaded serde v1.0.19
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e56a94e11ff111b8b72413201f5bd0575f88493bf4282f415628520d1f05fe68
[INFO] running `Command { std: "docker" "start" "-a" "e56a94e11ff111b8b72413201f5bd0575f88493bf4282f415628520d1f05fe68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e56a94e11ff111b8b72413201f5bd0575f88493bf4282f415628520d1f05fe68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e56a94e11ff111b8b72413201f5bd0575f88493bf4282f415628520d1f05fe68", kill_on_drop: false }`
[INFO] [stdout] e56a94e11ff111b8b72413201f5bd0575f88493bf4282f415628520d1f05fe68
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a6fa353d4cc786fd595e29395fbd9bffe47b3ec49f8963cb4a09a8e9b938695
[INFO] running `Command { std: "docker" "start" "-a" "0a6fa353d4cc786fd595e29395fbd9bffe47b3ec49f8963cb4a09a8e9b938695", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking futures v0.1.17
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking lazycell v0.5.1
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking serde v1.0.19
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]    Compiling unicase v2.0.0
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stderr]     Checking mime v0.3.5
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.0
[INFO] [stderr]     Checking futures-cpupool v0.1.7
[INFO] [stderr]     Checking tokio-core v0.1.10
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking hyper v0.11.6
[INFO] [stderr]     Checking serde_json v1.0.6
[INFO] [stderr]     Checking emnify_hose v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Future`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use futures::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream::Stream`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use futures::stream::Stream;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Future`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use futures::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream::Stream`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use futures::stream::Stream;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/main.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let mut r = request(url.parse::<hyper::Uri>().unwrap(), true);
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/main.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let mut r = request(url.parse::<hyper::Uri>().unwrap(), true);
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rand` is never used
[INFO] [stdout]    --> src/main.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn rand(mut rng: ThreadRng) -> bool {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rand` is never used
[INFO] [stdout]    --> src/main.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn rand(mut rng: ThreadRng) -> bool {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "0a6fa353d4cc786fd595e29395fbd9bffe47b3ec49f8963cb4a09a8e9b938695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a6fa353d4cc786fd595e29395fbd9bffe47b3ec49f8963cb4a09a8e9b938695", kill_on_drop: false }`
[INFO] [stdout] 0a6fa353d4cc786fd595e29395fbd9bffe47b3ec49f8963cb4a09a8e9b938695
[INFO] checking zoranzaric/emnify_hose against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzoranzaric%2Femnify_hose" "/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/zoranzaric/emnify_hose on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zoranzaric/emnify_hose
[INFO] finished tweaking git repo https://github.com/zoranzaric/emnify_hose
[INFO] tweaked toml for git repo https://github.com/zoranzaric/emnify_hose written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zoranzaric/emnify_hose 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caff9a1f8cf55dc8d5a10f528d98bf9ac2541e24133ce130c6005324649b0ab6
[INFO] running `Command { std: "docker" "start" "-a" "caff9a1f8cf55dc8d5a10f528d98bf9ac2541e24133ce130c6005324649b0ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caff9a1f8cf55dc8d5a10f528d98bf9ac2541e24133ce130c6005324649b0ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caff9a1f8cf55dc8d5a10f528d98bf9ac2541e24133ce130c6005324649b0ab6", kill_on_drop: false }`
[INFO] [stdout] caff9a1f8cf55dc8d5a10f528d98bf9ac2541e24133ce130c6005324649b0ab6
[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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6aa3466d35502d09c821f94eafc7aadccefa0b2a81c08f607d9ed56ca35de49
[INFO] running `Command { std: "docker" "start" "-a" "a6aa3466d35502d09c821f94eafc7aadccefa0b2a81c08f607d9ed56ca35de49", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking futures v0.1.17
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking lazycell v0.5.1
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking serde v1.0.19
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]    Compiling unicase v2.0.0
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-0.4.5/src/bytes.rs:1986:21
[INFO] [stdout]      |
[INFO] [stdout] 1986 |                     panic!(); // TODO: abort
[INFO] [stdout]      |                     ^^^^^^^^ cannot infer type
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bytes` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mio-0.6.11/src/poll.rs:2035:13
[INFO] [stdout]      |
[INFO] [stdout] 2035 |             panic!();
[INFO] [stdout]      |             ^^^^^^^^ cannot infer type
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mio` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a6aa3466d35502d09c821f94eafc7aadccefa0b2a81c08f607d9ed56ca35de49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6aa3466d35502d09c821f94eafc7aadccefa0b2a81c08f607d9ed56ca35de49", kill_on_drop: false }`
[INFO] [stdout] a6aa3466d35502d09c821f94eafc7aadccefa0b2a81c08f607d9ed56ca35de49