[INFO] fetching crate killjoy 0.2.0...
[INFO] checking killjoy-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate killjoy 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate killjoy 0.2.0 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 killjoy 0.2.0
[INFO] finished tweaking crates.io crate killjoy 0.2.0
[INFO] tweaked toml for crates.io crate killjoy 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate killjoy 0.2.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded proc-macro2 v1.0.5
[INFO] [stderr]   Downloaded libdbus-sys v0.2.1
[INFO] [stderr]   Downloaded pkg-config v0.3.16
[INFO] [stderr]   Downloaded getrandom v0.1.12
[INFO] [stderr]   Downloaded predicates v1.0.1
[INFO] [stderr]   Downloaded dbus v0.6.5
[INFO] [stderr]   Downloaded bitflags v1.2.0
[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] cbe87377836e59363318d48a2d0a064a41485b2a4181fd4b1e85aeac4db6de06
[INFO] running `Command { std: "docker" "start" "-a" "cbe87377836e59363318d48a2d0a064a41485b2a4181fd4b1e85aeac4db6de06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbe87377836e59363318d48a2d0a064a41485b2a4181fd4b1e85aeac4db6de06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbe87377836e59363318d48a2d0a064a41485b2a4181fd4b1e85aeac4db6de06", kill_on_drop: false }`
[INFO] [stdout] cbe87377836e59363318d48a2d0a064a41485b2a4181fd4b1e85aeac4db6de06
[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] a380c6930b22671802f66526ae0897b3a8ddabc488d7efce1fc1439ea3ad2e14
[INFO] running `Command { std: "docker" "start" "-a" "a380c6930b22671802f66526ae0897b3a8ddabc488d7efce1fc1439ea3ad2e14", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking killjoy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `clap` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use clap;
[INFO] [stdout]   |     ^^^^ the item `clap` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `dbus` is imported redundantly
[INFO] [stdout]  --> src/generated/org_freedesktop_systemd1.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use dbus;
[INFO] [stdout]   |     ^^^^ the item `dbus` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stdout] warning: the item `clap` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use clap;
[INFO] [stdout]   |     ^^^^ the item `clap` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `dbus` is imported redundantly
[INFO] [stdout]  --> src/generated/org_freedesktop_systemd1.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use dbus;
[INFO] [stdout]   |     ^^^^ the item `dbus` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HashMap` is imported redundantly
[INFO] [stdout]    --> src/settings.rs:336:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |     use std::collections::HashMap;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 337 |
[INFO] [stdout] 338 |     use super::*;
[INFO] [stdout]     |         -------- the item `HashMap` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.03s
[INFO] running `Command { std: "docker" "inspect" "a380c6930b22671802f66526ae0897b3a8ddabc488d7efce1fc1439ea3ad2e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a380c6930b22671802f66526ae0897b3a8ddabc488d7efce1fc1439ea3ad2e14", kill_on_drop: false }`
[INFO] [stdout] a380c6930b22671802f66526ae0897b3a8ddabc488d7efce1fc1439ea3ad2e14
[INFO] checking killjoy-0.2.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate killjoy 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate killjoy 0.2.0 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 crates.io crate killjoy 0.2.0
[INFO] finished tweaking crates.io crate killjoy 0.2.0
[INFO] tweaked toml for crates.io crate killjoy 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate killjoy 0.2.0 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5e764b3793cc25858ff6ad61e64dc1128fc84045522bbe5af06381572f3bb2c5
[INFO] running `Command { std: "docker" "start" "-a" "5e764b3793cc25858ff6ad61e64dc1128fc84045522bbe5af06381572f3bb2c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e764b3793cc25858ff6ad61e64dc1128fc84045522bbe5af06381572f3bb2c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e764b3793cc25858ff6ad61e64dc1128fc84045522bbe5af06381572f3bb2c5", kill_on_drop: false }`
[INFO] [stdout] 5e764b3793cc25858ff6ad61e64dc1128fc84045522bbe5af06381572f3bb2c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d6b9cec60196d98d3529771ebb5f91eb9fcf6fa6aa878e07d0ac7970d63a21eb
[INFO] running `Command { std: "docker" "start" "-a" "d6b9cec60196d98d3529771ebb5f91eb9fcf6fa6aa878e07d0ac7970d63a21eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.1/src/exec.rs:838:13
[INFO] [stdout]     |
[INFO] [stdout] 838 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 839 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 840 | |                 self.cache.value(),
[INFO] [stdout] 841 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 852 | |                 Quit => return Some(Quit),
[INFO] [stdout] 853 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[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 `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d6b9cec60196d98d3529771ebb5f91eb9fcf6fa6aa878e07d0ac7970d63a21eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6b9cec60196d98d3529771ebb5f91eb9fcf6fa6aa878e07d0ac7970d63a21eb", kill_on_drop: false }`
[INFO] [stdout] d6b9cec60196d98d3529771ebb5f91eb9fcf6fa6aa878e07d0ac7970d63a21eb