[INFO] fetching crate dhall 0.10.0... [INFO] checking dhall-0.10.0 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782 [INFO] extracting crate dhall 0.10.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate dhall 0.10.0 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate dhall 0.10.0 [INFO] removed 1 missing tests [INFO] finished tweaking crates.io crate dhall 0.10.0 [INFO] tweaked toml for crates.io crate dhall 0.10.0 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded colored-diff v0.2.2 [INFO] [stderr] Downloaded typed-arena v1.7.0 [INFO] [stderr] Downloaded tokio-native-tls v0.3.0 [INFO] [stderr] Downloaded annotate-snippets v0.9.0 [INFO] [stderr] Downloaded elsa v1.3.2 [INFO] [stderr] Downloaded hyper v0.14.4 [INFO] [stderr] Downloaded h2 v0.3.0 [INFO] [stderr] Downloaded hyper-tls v0.5.0 [INFO] [stderr] Downloaded http-body v0.4.0 [INFO] [stderr] Downloaded abnf v0.6.1 [INFO] [stderr] Downloaded abnf_to_pest v0.5.0 [INFO] [stderr] Downloaded reqwest v0.11.1 [INFO] [stderr] Downloaded pest_consume v1.0.6 [INFO] [stderr] Downloaded pest_consume_macros v1.0.6 [INFO] [stderr] Downloaded pretty v0.5.2 [INFO] [stderr] Downloaded libtest-mimic v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] db2c5b3ba863f71ae1478f06366a2dd3963e78c3e71b97675b3bc18de8c70d0e [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" "db2c5b3ba863f71ae1478f06366a2dd3963e78c3e71b97675b3bc18de8c70d0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "db2c5b3ba863f71ae1478f06366a2dd3963e78c3e71b97675b3bc18de8c70d0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db2c5b3ba863f71ae1478f06366a2dd3963e78c3e71b97675b3bc18de8c70d0e", kill_on_drop: false }` [INFO] [stdout] db2c5b3ba863f71ae1478f06366a2dd3963e78c3e71b97675b3bc18de8c70d0e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b82bdcc9eaa458057ad3aa0aabc908d20cf9e97b0549dbdb95a538ae27e67bfc [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" "b82bdcc9eaa458057ad3aa0aabc908d20cf9e97b0549dbdb95a538ae27e67bfc", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Compiling lexical-core v0.7.5 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling static_assertions v1.1.0 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Compiling openssl v0.10.32 [INFO] [stderr] Compiling native-tls v0.2.7 [INFO] [stderr] Compiling httparse v1.3.5 [INFO] [stderr] Checking futures-io v0.3.13 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking futures-sink v0.3.13 [INFO] [stderr] Checking futures-task v0.3.13 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Checking try-lock v0.2.3 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Checking openssl-probe v0.1.2 [INFO] [stderr] Compiling typed-arena v1.7.0 [INFO] [stderr] Checking unicode-xid v0.2.1 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking tower-service v0.3.1 [INFO] [stderr] Compiling encoding_rs v0.8.28 [INFO] [stderr] Checking httpdate v0.3.2 [INFO] [stderr] Compiling pulldown-cmark v0.8.0 [INFO] [stderr] Checking ucd-trie v0.1.3 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Compiling anyhow v1.0.38 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking hex v0.4.2 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking semver-parser v0.9.0 [INFO] [stderr] Checking fs_extra v1.2.0 [INFO] [stderr] Compiling indexmap v1.6.1 [INFO] [stderr] Compiling tokio v1.2.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.2 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling openssl-sys v0.9.60 [INFO] [stderr] Checking tracing-core v0.1.17 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking futures-channel v0.3.13 [INFO] [stderr] Checking annotate-snippets v0.9.0 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling pretty v0.5.2 [INFO] [stderr] Checking http v0.2.3 [INFO] [stderr] Checking pest v2.1.3 [INFO] [stderr] Checking elsa v1.3.2 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling pest_meta v2.1.3 [INFO] [stderr] Checking futures-util v0.3.13 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking tracing v0.1.25 [INFO] [stderr] Checking colored-diff v0.2.2 [INFO] [stderr] Checking serde_urlencoded v0.7.0 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking quote v1.0.9 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking mio v0.7.9 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking sha2 v0.9.3 [INFO] [stderr] Checking crossbeam-epoch v0.9.2 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking http-body v0.4.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling abnf v0.6.1 [INFO] [stderr] Checking tokio-util v0.6.3 [INFO] [stderr] Checking tokio-native-tls v0.3.0 [INFO] [stderr] Compiling abnf_to_pest v0.5.0 [INFO] [stderr] Checking version-sync v0.9.2 [INFO] [stderr] Compiling pest_generator v2.1.3 [INFO] [stderr] Compiling pin-project-internal v1.0.5 [INFO] [stderr] Compiling pest_consume_macros v1.0.6 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Compiling dhall v0.10.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking pest_consume v1.0.6 [INFO] [stderr] Checking pin-project v1.0.5 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking libtest-mimic v0.3.0 [INFO] [stderr] Checking h2 v0.3.0 [INFO] [stderr] Checking hyper v0.14.4 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.1 [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/builtins.rs:455:43 [INFO] [stdout] | [INFO] [stdout] 455 | ... parts.intersperse(replacement), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/builtins.rs:455:43 [INFO] [stdout] | [INFO] [stdout] 455 | ... parts.intersperse(replacement), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/syntax/text/parser.rs:284:22 [INFO] [stdout] | [INFO] [stdout] 284 | .intersperse(newline) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/syntax/text/parser.rs:284:22 [INFO] [stdout] | [INFO] [stdout] 284 | .intersperse(newline) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [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 1m 49s [INFO] running `Command { std: "docker" "inspect" "b82bdcc9eaa458057ad3aa0aabc908d20cf9e97b0549dbdb95a538ae27e67bfc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b82bdcc9eaa458057ad3aa0aabc908d20cf9e97b0549dbdb95a538ae27e67bfc", kill_on_drop: false }` [INFO] [stdout] b82bdcc9eaa458057ad3aa0aabc908d20cf9e97b0549dbdb95a538ae27e67bfc