[INFO] cloning repository https://github.com/lieuwex/appel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lieuwex/appel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flieuwex%2Fappel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flieuwex%2Fappel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 696874db7d9d602c633b09eba5fb8ff4042d82b9
[INFO] checking lieuwex/appel against try#ae258e1fcbee4a062f5f3d869f06004d7cea088e for pr-135272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flieuwex%2Fappel" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lieuwex/appel on toolchain ae258e1fcbee4a062f5f3d869f06004d7cea088e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lieuwex/appel
[INFO] finished tweaking git repo https://github.com/lieuwex/appel
[INFO] tweaked toml for git repo https://github.com/lieuwex/appel written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lieuwex/appel 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" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e27265535340753c071f3b4eb3b91ae0183729f8d8778d898bd2172a03b95894
[INFO] running `Command { std: "docker" "start" "-a" "e27265535340753c071f3b4eb3b91ae0183729f8d8778d898bd2172a03b95894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e27265535340753c071f3b4eb3b91ae0183729f8d8778d898bd2172a03b95894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27265535340753c071f3b4eb3b91ae0183729f8d8778d898bd2172a03b95894", kill_on_drop: false }`
[INFO] [stdout] e27265535340753c071f3b4eb3b91ae0183729f8d8778d898bd2172a03b95894
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+ae258e1fcbee4a062f5f3d869f06004d7cea088e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abfdff73a1f737af09fc7ae910483704a8a0b9e72b436aed04d1c98d6a6e00f4
[INFO] running `Command { std: "docker" "start" "-a" "abfdff73a1f737af09fc7ae910483704a8a0b9e72b436aed04d1c98d6a6e00f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling rug v1.22.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking dyn-clone v1.0.16
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking dtoa v1.0.9
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking bstr v1.7.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking pom v3.3.0
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]     Checking dyn-clonable v0.9.0
[INFO] [stderr]     Checking appel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]  --> src/executor/chain.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::TryFrom, iter};
[INFO] [stdout]   |                             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]  --> src/executor/chain.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::TryFrom, iter};
[INFO] [stdout]   |                             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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/executor/chain.rs:118:18
[INFO] [stdout]     |
[INFO] [stdout] 118 |                 .intersperse(Ok(" ".to_string()))
[INFO] [stdout]     |                  ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]    --> src/main.rs:3:1
[INFO] [stdout]     |
[INFO] [stdout] 3   + #![feature(iter_intersperse)]
[INFO] [stdout]     |
[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/executor/chain.rs:118:18
[INFO] [stdout]     |
[INFO] [stdout] 118 |                 .intersperse(Ok(" ".to_string()))
[INFO] [stdout]     |                  ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]    --> src/main.rs:3:1
[INFO] [stdout]     |
[INFO] [stdout] 3   + #![feature(iter_intersperse)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `scalar` is never used
[INFO] [stdout]   --> src/executor/chain.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl IterShape {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn scalar(&self) -> Option<Ratio> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `scalar`, `get_at`, `take_at`, and `iter_mut` are never used
[INFO] [stdout]   --> src/executor/matrix.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl Matrix {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn scalar(&self) -> Option<&Ratio> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn get_at(&self, i: usize) -> Option<&Ratio> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn take_at(self, i: usize) -> Option<Ratio> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<Ratio> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `scalar` is never used
[INFO] [stdout]   --> src/executor/chain.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl IterShape {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn scalar(&self) -> Option<Ratio> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `scalar`, `get_at`, `take_at`, and `iter_mut` are never used
[INFO] [stdout]   --> src/executor/matrix.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl Matrix {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn scalar(&self) -> Option<&Ratio> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn get_at(&self, i: usize) -> Option<&Ratio> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn take_at(self, i: usize) -> Option<Ratio> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<Ratio> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5m 00s
[INFO] running `Command { std: "docker" "inspect" "abfdff73a1f737af09fc7ae910483704a8a0b9e72b436aed04d1c98d6a6e00f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abfdff73a1f737af09fc7ae910483704a8a0b9e72b436aed04d1c98d6a6e00f4", kill_on_drop: false }`
[INFO] [stdout] abfdff73a1f737af09fc7ae910483704a8a0b9e72b436aed04d1c98d6a6e00f4
