[INFO] cloning repository https://github.com/yyklll/skeleton [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yyklll/skeleton" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyyklll%2Fskeleton", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyyklll%2Fskeleton'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 24eb82d118ce76281e35ed6f7deb89f355e4d8b3 [INFO] checking yyklll/skeleton against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyyklll%2Fskeleton" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yyklll/skeleton on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yyklll/skeleton [INFO] finished tweaking git repo https://github.com/yyklll/skeleton [INFO] tweaked toml for git repo https://github.com/yyklll/skeleton written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/yyklll/skeleton already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded iovec v0.1.3 [INFO] [stderr] Downloaded tokio-serde-json v0.2.0 [INFO] [stderr] Downloaded tokio-serde v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6f5ac6f8bdb69e955864a48b2399ac8ba5e014f555ecd9d2279eeb56d7de64f5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6f5ac6f8bdb69e955864a48b2399ac8ba5e014f555ecd9d2279eeb56d7de64f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6f5ac6f8bdb69e955864a48b2399ac8ba5e014f555ecd9d2279eeb56d7de64f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f5ac6f8bdb69e955864a48b2399ac8ba5e014f555ecd9d2279eeb56d7de64f5", kill_on_drop: false }` [INFO] [stdout] 6f5ac6f8bdb69e955864a48b2399ac8ba5e014f555ecd9d2279eeb56d7de64f5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1a8686fa2cbfb39f3c8da902d4a14633c77867acf63dc74b4d3a1afea89fb9d1 [INFO] running `Command { std: "docker" "start" "-a" "1a8686fa2cbfb39f3c8da902d4a14633c77867acf63dc74b4d3a1afea89fb9d1", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] Running `cargo fix --edition` [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking futures v0.1.29 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling autocfg v0.1.6 [INFO] [stderr] Compiling serde v1.0.101 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Compiling rayon-core v1.6.0 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling proc-macro2 v1.0.5 [INFO] [stderr] Checking arrayvec v0.4.11 [INFO] [stderr] Checking yaml-rust v0.4.3 [INFO] [stderr] Checking iovec v0.1.3 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking backtrace v0.3.38 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Checking tokio-executor v0.1.8 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-sync v0.1.6 [INFO] [stderr] Checking tokio-serde v0.3.0 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking serde_test v0.8.23 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-reactor v0.1.10 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking tokio-threadpool v0.1.16 [INFO] [stderr] Checking linked-hash-map v0.3.0 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-udp v0.1.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking rayon v1.2.0 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking serde-hjson v0.8.2 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Compiling serde_derive v1.0.101 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Checking serde_json v1.0.41 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking tokio-serde-json v0.2.0 [INFO] [stderr] Checking config v0.9.3 [INFO] [stderr] Checking skeleton v0.1.0 (/tmp/fixit) [INFO] [stderr] Migrating src/lib.rs from 2018 edition to 2021 [INFO] [stderr] Fixed src/engine/mod.rs (4 fixes) [INFO] [stderr] Migrating src/bin/server.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/client.rs from 2018 edition to 2021 [INFO] [stderr] Fixed src/bin/server.rs (1 fix) [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/bin/client.rs:70:10 [INFO] [stdout] | [INFO] [stdout] 70 | if let (value, _) = client [INFO] [stdout] | __________^ [INFO] [stdout] 71 | | .and_then(move |client| client.command1(arg1)) [INFO] [stdout] 72 | | .wait()? [INFO] [stdout] | |________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/bin/client.rs:81:10 [INFO] [stdout] | [INFO] [stdout] 81 | if let (value, _) = client [INFO] [stdout] | __________^ [INFO] [stdout] 82 | | .and_then(move |client| client.command2(arg1, arg2)) [INFO] [stdout] 83 | | .wait()? [INFO] [stdout] | |________________^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/bin/client.rs:70:10 [INFO] [stdout] | [INFO] [stdout] 70 | if let (value, _) = client [INFO] [stdout] | __________^ [INFO] [stdout] 71 | | .and_then(move |client| client.command1(arg1)) [INFO] [stdout] 72 | | .wait()? [INFO] [stdout] | |________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/bin/client.rs:81:10 [INFO] [stdout] | [INFO] [stdout] 81 | if let (value, _) = client [INFO] [stdout] | __________^ [INFO] [stdout] 82 | | .and_then(move |client| client.command2(arg1, arg2)) [INFO] [stdout] 83 | | .wait()? [INFO] [stdout] | |________________^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 28s [INFO] [stderr] Running `cargo check` to verify 2021 [INFO] [stderr] Checking skeleton v0.1.0 (/tmp/fixit) [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/bin/client.rs:70:10 [INFO] [stdout] | [INFO] [stdout] 70 | if let (value, _) = client [INFO] [stdout] | __________^ [INFO] [stdout] 71 | | .and_then(move |client| client.command1(arg1)) [INFO] [stdout] 72 | | .wait()? [INFO] [stdout] | |________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/bin/client.rs:81:10 [INFO] [stdout] | [INFO] [stdout] 81 | if let (value, _) = client [INFO] [stdout] | __________^ [INFO] [stdout] 82 | | .and_then(move |client| client.command2(arg1, arg2)) [INFO] [stdout] 83 | | .wait()? [INFO] [stdout] | |________________^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/bin/client.rs:70:10 [INFO] [stdout] | [INFO] [stdout] 70 | if let (value, _) = client [INFO] [stdout] | __________^ [INFO] [stdout] 71 | | .and_then(move |client| client.command1(arg1)) [INFO] [stdout] 72 | | .wait()? [INFO] [stdout] | |________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/bin/client.rs:81:10 [INFO] [stdout] | [INFO] [stdout] 81 | if let (value, _) = client [INFO] [stdout] | __________^ [INFO] [stdout] 82 | | .and_then(move |client| client.command2(arg1, arg2)) [INFO] [stdout] 83 | | .wait()? [INFO] [stdout] | |________________^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.39s [INFO] running `Command { std: "docker" "inspect" "1a8686fa2cbfb39f3c8da902d4a14633c77867acf63dc74b4d3a1afea89fb9d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a8686fa2cbfb39f3c8da902d4a14633c77867acf63dc74b4d3a1afea89fb9d1", kill_on_drop: false }` [INFO] [stdout] 1a8686fa2cbfb39f3c8da902d4a14633c77867acf63dc74b4d3a1afea89fb9d1