[INFO] fetching crate cvar 0.4.1...
[INFO] testing cvar-0.4.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate cvar 0.4.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate cvar 0.4.1
[INFO] finished tweaking crates.io crate cvar 0.4.1
[INFO] tweaked toml for crates.io crate cvar 0.4.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cvar 0.4.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cvar 0.4.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4429d5a8f7db54704c5e7676e8b7ef240578c1a0d777ed3a56b6556c440e638
[INFO] running `Command { std: "docker" "start" "-a" "d4429d5a8f7db54704c5e7676e8b7ef240578c1a0d777ed3a56b6556c440e638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4429d5a8f7db54704c5e7676e8b7ef240578c1a0d777ed3a56b6556c440e638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4429d5a8f7db54704c5e7676e8b7ef240578c1a0d777ed3a56b6556c440e638", kill_on_drop: false }`
[INFO] [stdout] d4429d5a8f7db54704c5e7676e8b7ef240578c1a0d777ed3a56b6556c440e638
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bbcb86762072970b32e2fe95df58949aa648b88ffcd47eb671b71b76bff99ce
[INFO] running `Command { std: "docker" "start" "-a" "4bbcb86762072970b32e2fe95df58949aa648b88ffcd47eb671b71b76bff99ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling cvar v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/console.rs:225:57
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn split_at<'a>(path: &'a str, index: usize) -> Option<(&str, &u8, &str)> {
[INFO] [stdout]     |                        --                               ^^^^  ^^^  ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                        |                                |     |
[INFO] [stdout]     |                        |                                |     the same lifetime is elided here
[INFO] [stdout]     |                        the lifetime is named here       the same 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn split_at<'a>(path: &'a str, index: usize) -> Option<(&'a str, &'a u8, &'a str)> {
[INFO] [stdout]     |                                                          ++       ++      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "4bbcb86762072970b32e2fe95df58949aa648b88ffcd47eb671b71b76bff99ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bbcb86762072970b32e2fe95df58949aa648b88ffcd47eb671b71b76bff99ce", kill_on_drop: false }`
[INFO] [stdout] 4bbcb86762072970b32e2fe95df58949aa648b88ffcd47eb671b71b76bff99ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5aa237b37d1090833c1e1ad998221ddf6d1b2735678daf6710945e359b25712
[INFO] running `Command { std: "docker" "start" "-a" "d5aa237b37d1090833c1e1ad998221ddf6d1b2735678daf6710945e359b25712", kill_on_drop: false }`
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/console.rs:225:57
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn split_at<'a>(path: &'a str, index: usize) -> Option<(&str, &u8, &str)> {
[INFO] [stdout]     |                        --                               ^^^^  ^^^  ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                        |                                |     |
[INFO] [stdout]     |                        |                                |     the same lifetime is elided here
[INFO] [stdout]     |                        the lifetime is named here       the same 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn split_at<'a>(path: &'a str, index: usize) -> Option<(&'a str, &'a u8, &'a str)> {
[INFO] [stdout]     |                                                          ++       ++      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cvar v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/console.rs:225:57
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn split_at<'a>(path: &'a str, index: usize) -> Option<(&str, &u8, &str)> {
[INFO] [stdout]     |                        --                               ^^^^  ^^^  ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                        |                                |     |
[INFO] [stdout]     |                        |                                |     the same lifetime is elided here
[INFO] [stdout]     |                        the lifetime is named here       the same 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn split_at<'a>(path: &'a str, index: usize) -> Option<(&'a str, &'a u8, &'a str)> {
[INFO] [stdout]     |                                                          ++       ++      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "d5aa237b37d1090833c1e1ad998221ddf6d1b2735678daf6710945e359b25712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5aa237b37d1090833c1e1ad998221ddf6d1b2735678daf6710945e359b25712", kill_on_drop: false }`
[INFO] [stdout] d5aa237b37d1090833c1e1ad998221ddf6d1b2735678daf6710945e359b25712
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b65286815b7141349f10c6a14933892efc05a5c7cf6e1588095b81fb4a4210ff
[INFO] running `Command { std: "docker" "start" "-a" "b65286815b7141349f10c6a14933892efc05a5c7cf6e1588095b81fb4a4210ff", kill_on_drop: false }`
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/console.rs:225:57
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn split_at<'a>(path: &'a str, index: usize) -> Option<(&str, &u8, &str)> {
[INFO] [stderr]     |                        --                               ^^^^  ^^^  ^^^^ the same lifetime is elided here
[INFO] [stderr]     |                        |                                |     |
[INFO] [stderr]     |                        |                                |     the same lifetime is elided here
[INFO] [stderr]     |                        the lifetime is named here       the same lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn split_at<'a>(path: &'a str, index: usize) -> Option<(&'a str, &'a u8, &'a str)> {
[INFO] [stderr]     |                                                          ++       ++      ++
[INFO] [stderr] 
[INFO] [stderr] warning: `cvar` (lib) generated 1 warning (run `cargo fix --lib -p cvar` to apply 1 suggestion)
[INFO] [stderr] warning: `cvar` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cvar-d72d41e731d662b0)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test console::test_compare_id ... ok
[INFO] [stdout] test tests::main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cvar
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Visit (line 621) ... ok
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] test src/lib.rs - IVisit (line 590) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b65286815b7141349f10c6a14933892efc05a5c7cf6e1588095b81fb4a4210ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65286815b7141349f10c6a14933892efc05a5c7cf6e1588095b81fb4a4210ff", kill_on_drop: false }`
[INFO] [stdout] b65286815b7141349f10c6a14933892efc05a5c7cf6e1588095b81fb4a4210ff