[INFO] fetching crate idata 0.1.2...
[INFO] testing idata-0.1.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate idata 0.1.2 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate idata 0.1.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate idata 0.1.2
[INFO] finished tweaking crates.io crate idata 0.1.2
[INFO] tweaked toml for crates.io crate idata 0.1.2 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6d5acabeb8f6a30f2acf8ba695f8706a302a8761593678ec92d2004f7fb87c7
[INFO] running `Command { std: "docker" "start" "-a" "d6d5acabeb8f6a30f2acf8ba695f8706a302a8761593678ec92d2004f7fb87c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6d5acabeb8f6a30f2acf8ba695f8706a302a8761593678ec92d2004f7fb87c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d5acabeb8f6a30f2acf8ba695f8706a302a8761593678ec92d2004f7fb87c7", kill_on_drop: false }`
[INFO] [stdout] d6d5acabeb8f6a30f2acf8ba695f8706a302a8761593678ec92d2004f7fb87c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06b9794f8b75d8b2dc32db8e2dc14889029e6f3e5d874a5feb897fdca5cbdd2a
[INFO] running `Command { std: "docker" "start" "-a" "06b9794f8b75d8b2dc32db8e2dc14889029e6f3e5d874a5feb897fdca5cbdd2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling idata v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:192:24
[INFO] [stdout]     |
[INFO] [stdout] 192 |         fn ipush(self, T) -> Self;
[INFO] [stdout]     |                        ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:208:26
[INFO] [stdout]     |
[INFO] [stdout] 208 |         fn iappend(self, Vec<T>) -> Self;
[INFO] [stdout]     |                          ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Vec<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "06b9794f8b75d8b2dc32db8e2dc14889029e6f3e5d874a5feb897fdca5cbdd2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b9794f8b75d8b2dc32db8e2dc14889029e6f3e5d874a5feb897fdca5cbdd2a", kill_on_drop: false }`
[INFO] [stdout] 06b9794f8b75d8b2dc32db8e2dc14889029e6f3e5d874a5feb897fdca5cbdd2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7393f0f0641ae14f15b305c016dc2270ddea965814c5178c097600cf675557f4
[INFO] running `Command { std: "docker" "start" "-a" "7393f0f0641ae14f15b305c016dc2270ddea965814c5178c097600cf675557f4", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:192:24
[INFO] [stdout]     |
[INFO] [stdout] 192 |         fn ipush(self, T) -> Self;
[INFO] [stdout]     |                        ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling idata v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:208:26
[INFO] [stdout]     |
[INFO] [stdout] 208 |         fn iappend(self, Vec<T>) -> Self;
[INFO] [stdout]     |                          ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Vec<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:192:24
[INFO] [stdout]     |
[INFO] [stdout] 192 |         fn ipush(self, T) -> Self;
[INFO] [stdout]     |                        ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:208:26
[INFO] [stdout]     |
[INFO] [stdout] 208 |         fn iappend(self, Vec<T>) -> Self;
[INFO] [stdout]     |                          ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Vec<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "7393f0f0641ae14f15b305c016dc2270ddea965814c5178c097600cf675557f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7393f0f0641ae14f15b305c016dc2270ddea965814c5178c097600cf675557f4", kill_on_drop: false }`
[INFO] [stdout] 7393f0f0641ae14f15b305c016dc2270ddea965814c5178c097600cf675557f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6fc5a451e8a74e7cec9f4a05be18b66b93dec537405de4df8fbc82789a13f43d
[INFO] running `Command { std: "docker" "start" "-a" "6fc5a451e8a74e7cec9f4a05be18b66b93dec537405de4df8fbc82789a13f43d", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/lib.rs:192:24
[INFO] [stderr]     |
[INFO] [stderr] 192 |         fn ipush(self, T) -> Self;
[INFO] [stderr]     |                        ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/lib.rs:208:26
[INFO] [stderr]     |
[INFO] [stderr] 208 |         fn iappend(self, Vec<T>) -> Self;
[INFO] [stderr]     |                          ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Vec<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: `idata` (lib) generated 2 warnings
[INFO] [stderr] warning: `idata` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/idata-37da65a5b7681b65)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests idata
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - IString::ipush (line 109) ... ok
[INFO] [stdout] test src/lib.rs - tc::tail_call (line 288) ... ok
[INFO] [stdout] test src/lib.rs - IString::ipop (line 139) ... ok
[INFO] [stdout] test src/lib.rs - consume_char (line 40) ... ok
[INFO] [stdout] test src/lib.rs - cont::IVec::iappend (line 196) ... ok
[INFO] [stdout] test src/lib.rs - IString::iappend (line 124) ... ok
[INFO] [stdout] test src/lib.rs - tc (line 261) ... ok
[INFO] [stdout] test src/lib.rs - steal_borrow (line 69) ... ok
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] test src/lib.rs - cont::IVec::ipop (line 212) ... ok
[INFO] [stdout] test src/lib.rs - cont::IVec::ipush (line 180) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6fc5a451e8a74e7cec9f4a05be18b66b93dec537405de4df8fbc82789a13f43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc5a451e8a74e7cec9f4a05be18b66b93dec537405de4df8fbc82789a13f43d", kill_on_drop: false }`
[INFO] [stdout] 6fc5a451e8a74e7cec9f4a05be18b66b93dec537405de4df8fbc82789a13f43d