[INFO] fetching crate catsay 0.1.0... [INFO] checking catsay-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate catsay 0.1.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate catsay 0.1.0 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 catsay 0.1.0 [INFO] finished tweaking crates.io crate catsay 0.1.0 [INFO] tweaked toml for crates.io crate catsay 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate catsay 0.1.0 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] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro-error-attr v1.0.2 [INFO] [stderr] Downloaded proc-macro-error v1.0.2 [INFO] [stderr] Downloaded proc-macro2 v1.0.10 [INFO] [stderr] Downloaded structopt v0.3.14 [INFO] [stderr] Downloaded normalize-line-endings v0.3.0 [INFO] [stderr] Downloaded doc-comment v0.3.3 [INFO] [stderr] Downloaded treeline v0.1.0 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded float-cmp v0.6.0 [INFO] [stderr] Downloaded exitfailure v0.5.1 [INFO] [stderr] Downloaded hermit-abi v0.1.10 [INFO] [stderr] Downloaded wait-timeout v0.2.0 [INFO] [stderr] Downloaded assert_cmd v1.0.1 [INFO] [stderr] Downloaded backtrace v0.3.46 [INFO] [stderr] Downloaded failure v0.1.7 [INFO] [stderr] Downloaded aho-corasick v0.7.10 [INFO] [stderr] Downloaded libc v0.2.68 [INFO] [stderr] Downloaded backtrace-sys v0.1.35 [INFO] [stderr] Downloaded regex-syntax v0.6.17 [INFO] [stderr] Downloaded regex v1.3.7 [INFO] [stderr] Downloaded syn v1.0.17 [INFO] [stderr] Downloaded num-traits v0.2.11 [INFO] [stderr] Downloaded predicates v1.0.4 [INFO] [stderr] Downloaded colored v1.9.3 [INFO] [stderr] Downloaded failure_derive v0.1.7 [INFO] [stderr] Downloaded autocfg v1.0.0 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded structopt-derive v0.4.7 [INFO] [stderr] Downloaded quote v1.0.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 222fb1b63d080ae2a1850fafb31fe2fc9db13f833dabbe70882047c04c5b0913 [INFO] running `Command { std: "docker" "start" "-a" "222fb1b63d080ae2a1850fafb31fe2fc9db13f833dabbe70882047c04c5b0913", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "222fb1b63d080ae2a1850fafb31fe2fc9db13f833dabbe70882047c04c5b0913", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "222fb1b63d080ae2a1850fafb31fe2fc9db13f833dabbe70882047c04c5b0913", kill_on_drop: false }` [INFO] [stdout] 222fb1b63d080ae2a1850fafb31fe2fc9db13f833dabbe70882047c04c5b0913 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 457b09b5df44561d8ff3c304b231e5244862055f27c0391b8ddec00006b250a9 [INFO] running `Command { std: "docker" "start" "-a" "457b09b5df44561d8ff3c304b231e5244862055f27c0391b8ddec00006b250a9", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling backtrace-sys v0.1.35 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking float-cmp v0.6.0 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Checking predicates v1.0.4 [INFO] [stderr] Checking assert_cmd v1.0.1 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling structopt-derive v0.4.7 [INFO] [stderr] Checking failure v0.1.7 [INFO] [stderr] Checking exitfailure v0.5.1 [INFO] [stderr] Checking structopt v0.3.14 [INFO] [stderr] Checking catsay v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/integration_test.rs:15:53 [INFO] [stdout] | [INFO] [stdout] 15 | fn fail_on_nonexisting_file() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 15 | fn fail_on_nonexisting_file() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fail_on_nonexisting_file` is never used [INFO] [stdout] --> tests/integration_test.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn fail_on_nonexisting_file() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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 9.63s [INFO] running `Command { std: "docker" "inspect" "457b09b5df44561d8ff3c304b231e5244862055f27c0391b8ddec00006b250a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "457b09b5df44561d8ff3c304b231e5244862055f27c0391b8ddec00006b250a9", kill_on_drop: false }` [INFO] [stdout] 457b09b5df44561d8ff3c304b231e5244862055f27c0391b8ddec00006b250a9 [INFO] checking catsay-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate catsay 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate catsay 0.1.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate catsay 0.1.0 [INFO] finished tweaking crates.io crate catsay 0.1.0 [INFO] tweaked toml for crates.io crate catsay 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate catsay 0.1.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ecda74db20e3af3e587e741e945e10b764eec759d1a5f1c41ab05060b71bc44c [INFO] running `Command { std: "docker" "start" "-a" "ecda74db20e3af3e587e741e945e10b764eec759d1a5f1c41ab05060b71bc44c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ecda74db20e3af3e587e741e945e10b764eec759d1a5f1c41ab05060b71bc44c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecda74db20e3af3e587e741e945e10b764eec759d1a5f1c41ab05060b71bc44c", kill_on_drop: false }` [INFO] [stdout] ecda74db20e3af3e587e741e945e10b764eec759d1a5f1c41ab05060b71bc44c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0860871494d64d2f400261e3c4e60575e22c2caae86ba80fe7b64effabe02042 [INFO] running `Command { std: "docker" "start" "-a" "0860871494d64d2f400261e3c4e60575e22c2caae86ba80fe7b64effabe02042", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling backtrace-sys v0.1.35 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Checking float-cmp v0.6.0 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking predicates v1.0.4 [INFO] [stderr] Checking assert_cmd v1.0.1 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling structopt-derive v0.4.7 [INFO] [stderr] Checking failure v0.1.7 [INFO] [stderr] Checking exitfailure v0.5.1 [INFO] [stderr] Checking structopt v0.3.14 [INFO] [stderr] Checking catsay v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/integration_test.rs:15:53 [INFO] [stdout] | [INFO] [stdout] 15 | fn fail_on_nonexisting_file() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 15 | fn fail_on_nonexisting_file() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fail_on_nonexisting_file` is never used [INFO] [stdout] --> tests/integration_test.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn fail_on_nonexisting_file() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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 7.48s [INFO] running `Command { std: "docker" "inspect" "0860871494d64d2f400261e3c4e60575e22c2caae86ba80fe7b64effabe02042", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0860871494d64d2f400261e3c4e60575e22c2caae86ba80fe7b64effabe02042", kill_on_drop: false }` [INFO] [stdout] 0860871494d64d2f400261e3c4e60575e22c2caae86ba80fe7b64effabe02042