[INFO] fetching crate sharpen 0.1.0...
[INFO] checking sharpen-0.1.0 against master#01706e1a34c87656fcbfce198608f4cd2ac6461a for pr-135272
[INFO] extracting crate sharpen 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sharpen 0.1.0 on toolchain 01706e1a34c87656fcbfce198608f4cd2ac6461a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sharpen 0.1.0
[INFO] finished tweaking crates.io crate sharpen 0.1.0
[INFO] tweaked toml for crates.io crate sharpen 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "generate-lockfile" "--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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 59 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.2.11 (available: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5d0889003c10f7bda0dd51436cbaafac53700e9827eaaa929154c3c355d6ae9
[INFO] running `Command { std: "docker" "start" "-a" "c5d0889003c10f7bda0dd51436cbaafac53700e9827eaaa929154c3c355d6ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5d0889003c10f7bda0dd51436cbaafac53700e9827eaaa929154c3c355d6ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d0889003c10f7bda0dd51436cbaafac53700e9827eaaa929154c3c355d6ae9", kill_on_drop: false }`
[INFO] [stdout] c5d0889003c10f7bda0dd51436cbaafac53700e9827eaaa929154c3c355d6ae9
[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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97e49643c177f013faebfc46ed2fceeca878c212459f05c820fc49f3c20f8f4e
[INFO] running `Command { std: "docker" "start" "-a" "97e49643c177f013faebfc46ed2fceeca878c212459f05c820fc49f3c20f8f4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.25
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking sharpen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]   --> src/tree_collapse/tests.rs:62:18
[INFO] [stdout]    |
[INFO] [stdout] 62 |                 .into_iter()
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 62 |                 .iter()
[INFO] [stdout]    |                  ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 61 |             mapping: IntoIterator::into_iter([(1, 0), (2, 0), (4, 3), (5, 4), (6, 3), (7, 3)])
[INFO] [stdout]    |                      ++++++++++++++++++++++++                                                ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/tree_collapse/tests.rs:105:18
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 .into_iter()
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 .iter()
[INFO] [stdout]     |                  ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 104 |             mapping: IntoIterator::into_iter([(0, 2), (1, 2), (3, 4), (4, 7), (5, 7), (6, 7)])
[INFO] [stdout]     |                      ++++++++++++++++++++++++                                                ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.73s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "97e49643c177f013faebfc46ed2fceeca878c212459f05c820fc49f3c20f8f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97e49643c177f013faebfc46ed2fceeca878c212459f05c820fc49f3c20f8f4e", kill_on_drop: false }`
[INFO] [stdout] 97e49643c177f013faebfc46ed2fceeca878c212459f05c820fc49f3c20f8f4e
