[INFO] fetching crate wagon-utils 1.0.0...
[INFO] building wagon-utils-1.0.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate wagon-utils 1.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate wagon-utils 1.0.0
[INFO] finished tweaking crates.io crate wagon-utils 1.0.0
[INFO] tweaked toml for crates.io crate wagon-utils 1.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wagon-utils 1.0.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 30 packages to latest compatible versions
[INFO] [stderr]       Adding ariadne v0.4.1 (available: v0.5.1)
[INFO] [stderr]       Adding itertools v0.12.1 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91db61ed2f6bfb56264a6606d6eb79ab9cfb9d9777eb801fa389905b1f79dc38
[INFO] running `Command { std: "docker" "start" "-a" "91db61ed2f6bfb56264a6606d6eb79ab9cfb9d9777eb801fa389905b1f79dc38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91db61ed2f6bfb56264a6606d6eb79ab9cfb9d9777eb801fa389905b1f79dc38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91db61ed2f6bfb56264a6606d6eb79ab9cfb9d9777eb801fa389905b1f79dc38", kill_on_drop: false }`
[INFO] [stdout] 91db61ed2f6bfb56264a6606d6eb79ab9cfb9d9777eb801fa389905b1f79dc38
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0a7eb4553ba8163e7316e1a80444eed4dc066aa096983b24e33a2d0617c7b9e
[INFO] running `Command { std: "docker" "start" "-a" "e0a7eb4553ba8163e7316e1a80444eed4dc066aa096983b24e33a2d0617c7b9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling wagon-utils v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn _rem_first_char(value: &str) -> Chars {
[INFO] [stdout]     |                           ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn _rem_first_char(value: &str) -> Chars<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn _rem_first_char_n(value: &str, n: usize) -> Chars {
[INFO] [stdout]     |                             ^^^^               ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn _rem_first_char_n(value: &str, n: usize) -> Chars<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:349:37
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn peek_unwrap(&'a mut self) -> &T {
[INFO] [stdout]     |                     --              ^^ the same lifetime is elided here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn peek_unwrap(&'a mut self) -> &'a T {
[INFO] [stdout]     |                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "e0a7eb4553ba8163e7316e1a80444eed4dc066aa096983b24e33a2d0617c7b9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0a7eb4553ba8163e7316e1a80444eed4dc066aa096983b24e33a2d0617c7b9e", kill_on_drop: false }`
[INFO] [stdout] e0a7eb4553ba8163e7316e1a80444eed4dc066aa096983b24e33a2d0617c7b9e
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18126a59448f9b64e21c8f620c2e5430921b6195f0295274a8117953ee91c3c9
[INFO] running `Command { std: "docker" "start" "-a" "18126a59448f9b64e21c8f620c2e5430921b6195f0295274a8117953ee91c3c9", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn _rem_first_char(value: &str) -> Chars {
[INFO] [stdout]     |                           ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn _rem_first_char(value: &str) -> Chars<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn _rem_first_char_n(value: &str, n: usize) -> Chars {
[INFO] [stdout]     |                             ^^^^               ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn _rem_first_char_n(value: &str, n: usize) -> Chars<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wagon-utils v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:349:37
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn peek_unwrap(&'a mut self) -> &T {
[INFO] [stdout]     |                     --              ^^ the same lifetime is elided here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn peek_unwrap(&'a mut self) -> &'a T {
[INFO] [stdout]     |                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn _rem_first_char(value: &str) -> Chars {
[INFO] [stdout]     |                           ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn _rem_first_char(value: &str) -> Chars<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn _rem_first_char_n(value: &str, n: usize) -> Chars {
[INFO] [stdout]     |                             ^^^^               ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn _rem_first_char_n(value: &str, n: usize) -> Chars<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:349:37
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn peek_unwrap(&'a mut self) -> &T {
[INFO] [stdout]     |                     --              ^^ the same lifetime is elided here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn peek_unwrap(&'a mut self) -> &'a T {
[INFO] [stdout]     |                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "18126a59448f9b64e21c8f620c2e5430921b6195f0295274a8117953ee91c3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18126a59448f9b64e21c8f620c2e5430921b6195f0295274a8117953ee91c3c9", kill_on_drop: false }`
[INFO] [stdout] 18126a59448f9b64e21c8f620c2e5430921b6195f0295274a8117953ee91c3c9