[INFO] cloning repository https://github.com/DoubleTrio/exptext [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DoubleTrio/exptext" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoubleTrio%2Fexptext", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoubleTrio%2Fexptext'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7187c2f4cecec8269faab6ffdc5b85d064dabbe9 [INFO] checking DoubleTrio/exptext against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoubleTrio%2Fexptext" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/DoubleTrio/exptext 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 git repo https://github.com/DoubleTrio/exptext [INFO] finished tweaking git repo https://github.com/DoubleTrio/exptext [INFO] tweaked toml for git repo https://github.com/DoubleTrio/exptext written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/DoubleTrio/exptext 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 lazysort v0.2.1 [INFO] [stderr] Downloaded hashbrown v0.12.2 [INFO] [stderr] Downloaded clap v3.2.11 [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a3a12afc5218c5003f8e371b4c6f6e22a228f6f3b52bd8b54d93296e97c024b2 [INFO] running `Command { std: "docker" "start" "-a" "a3a12afc5218c5003f8e371b4c6f6e22a228f6f3b52bd8b54d93296e97c024b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3a12afc5218c5003f8e371b4c6f6e22a228f6f3b52bd8b54d93296e97c024b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3a12afc5218c5003f8e371b4c6f6e22a228f6f3b52bd8b54d93296e97c024b2", kill_on_drop: false }` [INFO] [stdout] a3a12afc5218c5003f8e371b4c6f6e22a228f6f3b52bd8b54d93296e97c024b2 [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 016a959c14dd2a66ca38b427109774f9d031434de77eef768bc0d74a94f68068 [INFO] running `Command { std: "docker" "start" "-a" "016a959c14dd2a66ca38b427109774f9d031434de77eef768bc0d74a94f68068", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Compiling serde v1.0.140 [INFO] [stderr] Compiling serde_json v1.0.82 [INFO] [stderr] Checking os_str_bytes v6.1.0 [INFO] [stderr] Checking hashbrown v0.12.2 [INFO] [stderr] Compiling serde_derive v1.0.140 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking predicates-core v1.0.3 [INFO] [stderr] Checking once_cell v1.13.0 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking either v1.7.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking termtree v0.2.4 [INFO] [stderr] Checking lazysort v0.2.1 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking predicates-tree v1.0.5 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking predicates v2.1.1 [INFO] [stderr] Checking assert_cmd v2.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling clap_derive v3.2.7 [INFO] [stderr] Checking clap v3.2.11 [INFO] [stderr] Checking exptext v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/explanguage.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/explanguage.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.65s [INFO] running `Command { std: "docker" "inspect" "016a959c14dd2a66ca38b427109774f9d031434de77eef768bc0d74a94f68068", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "016a959c14dd2a66ca38b427109774f9d031434de77eef768bc0d74a94f68068", kill_on_drop: false }` [INFO] [stdout] 016a959c14dd2a66ca38b427109774f9d031434de77eef768bc0d74a94f68068 [INFO] checking DoubleTrio/exptext against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoubleTrio%2Fexptext" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/DoubleTrio/exptext 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 git repo https://github.com/DoubleTrio/exptext [INFO] finished tweaking git repo https://github.com/DoubleTrio/exptext [INFO] tweaked toml for git repo https://github.com/DoubleTrio/exptext written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/DoubleTrio/exptext 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] 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1148dd2e9fc6b770a692d9ea1fb3600cababb19a3be8ee721203cd59e7baedec [INFO] running `Command { std: "docker" "start" "-a" "1148dd2e9fc6b770a692d9ea1fb3600cababb19a3be8ee721203cd59e7baedec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1148dd2e9fc6b770a692d9ea1fb3600cababb19a3be8ee721203cd59e7baedec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1148dd2e9fc6b770a692d9ea1fb3600cababb19a3be8ee721203cd59e7baedec", kill_on_drop: false }` [INFO] [stdout] 1148dd2e9fc6b770a692d9ea1fb3600cababb19a3be8ee721203cd59e7baedec [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0d9888709a3bb6e30d4e7d581323386473848fa965ba839e9db35388083bc9dc [INFO] running `Command { std: "docker" "start" "-a" "0d9888709a3bb6e30d4e7d581323386473848fa965ba839e9db35388083bc9dc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Compiling serde v1.0.140 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking hashbrown v0.12.2 [INFO] [stderr] Compiling serde_json v1.0.82 [INFO] [stderr] Checking os_str_bytes v6.1.0 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling serde_derive v1.0.140 [INFO] [stderr] Checking once_cell v1.13.0 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking predicates-core v1.0.3 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking either v1.7.0 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking termtree v0.2.4 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking lazysort v0.2.1 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Checking predicates-tree v1.0.5 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking predicates v2.1.1 [INFO] [stderr] Compiling clap_derive v3.2.7 [INFO] [stderr] Checking assert_cmd v2.0.4 [INFO] [stderr] Checking clap v3.2.11 [INFO] [stderr] Checking exptext v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/explanguage.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/explanguage.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.66s [INFO] running `Command { std: "docker" "inspect" "0d9888709a3bb6e30d4e7d581323386473848fa965ba839e9db35388083bc9dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d9888709a3bb6e30d4e7d581323386473848fa965ba839e9db35388083bc9dc", kill_on_drop: false }` [INFO] [stdout] 0d9888709a3bb6e30d4e7d581323386473848fa965ba839e9db35388083bc9dc