[INFO] fetching crate b39wc 1.0.0... [INFO] checking b39wc-1.0.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate b39wc 1.0.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate b39wc 1.0.0 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 b39wc 1.0.0 [INFO] finished tweaking crates.io crate b39wc 1.0.0 [INFO] tweaked toml for crates.io crate b39wc 1.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate b39wc 1.0.0 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded predicates-core v1.0.2 [INFO] [stderr] Downloaded colour v0.6.0 [INFO] [stderr] Downloaded predicates v1.0.8 [INFO] [stderr] Downloaded cc v1.0.69 [INFO] [stderr] Downloaded float-cmp v0.8.0 [INFO] [stderr] Downloaded autocfg v0.1.7 [INFO] [stderr] Downloaded treeline v0.1.0 [INFO] [stderr] Downloaded instant v0.1.10 [INFO] [stderr] Downloaded assert_cmd v0.10.2 [INFO] [stderr] Downloaded crossterm_winapi v0.7.0 [INFO] [stderr] Downloaded predicates-tree v1.0.3 [INFO] [stderr] Downloaded proc-macro2 v1.0.29 [INFO] [stderr] Downloaded ryu v1.0.5 [INFO] [stderr] Downloaded mio v0.7.13 [INFO] [stderr] Downloaded serde v1.0.130 [INFO] [stderr] Downloaded syn v1.0.76 [INFO] [stderr] Downloaded libc v0.2.98 [INFO] [stderr] Downloaded serde_json v1.0.67 [INFO] [stderr] Downloaded crossterm v0.19.0 [INFO] [stderr] Downloaded serde_derive v1.0.130 [INFO] [stderr] Downloaded quote v1.0.9 [INFO] [stderr] Downloaded escargot v0.3.1 [INFO] [stderr] Downloaded lock_api v0.4.4 [INFO] [stderr] Downloaded parking_lot_core v0.8.3 [INFO] [stderr] Downloaded signal-hook v0.1.17 [INFO] [stderr] Downloaded microprofile v0.0.2 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0253df8fe4a1bf2439f00f3bdbfc63953a19db28453714dcdf2d5079547cf6e1 [INFO] running `Command { std: "docker" "start" "-a" "0253df8fe4a1bf2439f00f3bdbfc63953a19db28453714dcdf2d5079547cf6e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0253df8fe4a1bf2439f00f3bdbfc63953a19db28453714dcdf2d5079547cf6e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0253df8fe4a1bf2439f00f3bdbfc63953a19db28453714dcdf2d5079547cf6e1", kill_on_drop: false }` [INFO] [stdout] 0253df8fe4a1bf2439f00f3bdbfc63953a19db28453714dcdf2d5079547cf6e1 [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] 9117746c7a82964e63606a7b7a5c67db310a00260a5ae3b7aac7704a05f67138 [INFO] running `Command { std: "docker" "start" "-a" "9117746c7a82964e63606a7b7a5c67db310a00260a5ae3b7aac7704a05f67138", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Compiling serde_json v1.0.67 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling cc v1.0.69 [INFO] [stderr] Compiling escargot v0.3.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking signal-hook v0.1.17 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking crossterm v0.19.0 [INFO] [stderr] Checking predicates-tree v1.0.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling microprofile v0.0.2 [INFO] [stderr] Checking colour v0.6.0 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking assert_cmd v0.10.2 [INFO] [stderr] Checking b39wc v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `predicates::prelude::*` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use predicates::prelude::*; // Used for writing assertions [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::process::Command` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::process::Command; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `predicates::prelude::*` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use predicates::prelude::*; // Used for writing assertions [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `assert_cmd::prelude` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use assert_cmd::prelude::*; // Add methods on commands [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/main.rs:124:30 [INFO] [stdout] | [INFO] [stdout] 124 | missing.push(word.clone().to_string()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/main.rs:193:30 [INFO] [stdout] | [INFO] [stdout] 193 | missing.push(word.clone().to_string()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/main.rs:124:30 [INFO] [stdout] | [INFO] [stdout] 124 | missing.push(word.clone().to_string()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/main.rs:193:30 [INFO] [stdout] | [INFO] [stdout] 193 | missing.push(word.clone().to_string()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.80s [INFO] running `Command { std: "docker" "inspect" "9117746c7a82964e63606a7b7a5c67db310a00260a5ae3b7aac7704a05f67138", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9117746c7a82964e63606a7b7a5c67db310a00260a5ae3b7aac7704a05f67138", kill_on_drop: false }` [INFO] [stdout] 9117746c7a82964e63606a7b7a5c67db310a00260a5ae3b7aac7704a05f67138 [INFO] checking b39wc-1.0.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate b39wc 1.0.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate b39wc 1.0.0 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 b39wc 1.0.0 [INFO] finished tweaking crates.io crate b39wc 1.0.0 [INFO] tweaked toml for crates.io crate b39wc 1.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate b39wc 1.0.0 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-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] 6a47974e260f21b4d0a68fa0cef5166ddc8f95be4e6cbba85297c38ae48d638a [INFO] running `Command { std: "docker" "start" "-a" "6a47974e260f21b4d0a68fa0cef5166ddc8f95be4e6cbba85297c38ae48d638a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a47974e260f21b4d0a68fa0cef5166ddc8f95be4e6cbba85297c38ae48d638a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a47974e260f21b4d0a68fa0cef5166ddc8f95be4e6cbba85297c38ae48d638a", kill_on_drop: false }` [INFO] [stdout] 6a47974e260f21b4d0a68fa0cef5166ddc8f95be4e6cbba85297c38ae48d638a [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] f59f3551735d7bbc8b6a1847841f6ec07a8d80081e3261a0d2ef050126bdb665 [INFO] running `Command { std: "docker" "start" "-a" "f59f3551735d7bbc8b6a1847841f6ec07a8d80081e3261a0d2ef050126bdb665", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling serde_json v1.0.67 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling cc v1.0.69 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.0/src/half_lock.rs:145:13 [INFO] [stdout] | [INFO] [stdout] 145 | unsafe { libc::abort() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type [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 `signal-hook-registry` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "f59f3551735d7bbc8b6a1847841f6ec07a8d80081e3261a0d2ef050126bdb665", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f59f3551735d7bbc8b6a1847841f6ec07a8d80081e3261a0d2ef050126bdb665", kill_on_drop: false }` [INFO] [stdout] f59f3551735d7bbc8b6a1847841f6ec07a8d80081e3261a0d2ef050126bdb665