[INFO] fetching crate imprint 0.2.0...
[INFO] testing imprint-0.2.0 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate imprint 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate imprint 0.2.0 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imprint 0.2.0
[INFO] finished tweaking crates.io crate imprint 0.2.0
[INFO] tweaked toml for crates.io crate imprint 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-iter v0.1.42
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded num v0.1.42
[INFO] [stderr]   Downloaded num-rational v0.1.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 138282d4c7cd85e71e1ad68975cf073a6695e1ef6a837c8d044acfc8c2993c6a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "138282d4c7cd85e71e1ad68975cf073a6695e1ef6a837c8d044acfc8c2993c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "138282d4c7cd85e71e1ad68975cf073a6695e1ef6a837c8d044acfc8c2993c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "138282d4c7cd85e71e1ad68975cf073a6695e1ef6a837c8d044acfc8c2993c6a", kill_on_drop: false }`
[INFO] [stdout] 138282d4c7cd85e71e1ad68975cf073a6695e1ef6a837c8d044acfc8c2993c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44845d26ab4c4d8eaf2a120ef200b376332318c4dcc00333426ea1c9df50e782
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "44845d26ab4c4d8eaf2a120ef200b376332318c4dcc00333426ea1c9df50e782", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling imprint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:427:19
[INFO] [stdout]     |
[INFO] [stdout] 22  | use std::{fmt, mem};
[INFO] [stdout]     |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 427 |         use std::{mem, ptr};
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.55s
[INFO] running `Command { std: "docker" "inspect" "44845d26ab4c4d8eaf2a120ef200b376332318c4dcc00333426ea1c9df50e782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44845d26ab4c4d8eaf2a120ef200b376332318c4dcc00333426ea1c9df50e782", kill_on_drop: false }`
[INFO] [stdout] 44845d26ab4c4d8eaf2a120ef200b376332318c4dcc00333426ea1c9df50e782
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3449adfe73fd0ac0c44884e42e06356acc2ccbd038083d05411f51c638a38a0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d3449adfe73fd0ac0c44884e42e06356acc2ccbd038083d05411f51c638a38a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling imprint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:427:19
[INFO] [stdout]     |
[INFO] [stdout] 22  | use std::{fmt, mem};
[INFO] [stdout]     |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 427 |         use std::{mem, ptr};
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:427:19
[INFO] [stdout]     |
[INFO] [stdout] 22  | use std::{fmt, mem};
[INFO] [stdout]     |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 427 |         use std::{mem, ptr};
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "d3449adfe73fd0ac0c44884e42e06356acc2ccbd038083d05411f51c638a38a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3449adfe73fd0ac0c44884e42e06356acc2ccbd038083d05411f51c638a38a0", kill_on_drop: false }`
[INFO] [stdout] d3449adfe73fd0ac0c44884e42e06356acc2ccbd038083d05411f51c638a38a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] af39130bb19caadb1ba27820fb308c4de0f1a6c051a57556bdbffae80aab0dac
[INFO] running `Command { std: "docker" "start" "-a" "af39130bb19caadb1ba27820fb308c4de0f1a6c051a57556bdbffae80aab0dac", kill_on_drop: false }`
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:427:19
[INFO] [stderr]     |
[INFO] [stderr] 22  | use std::{fmt, mem};
[INFO] [stderr]     |                --- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 427 |         use std::{mem, ptr};
[INFO] [stderr]     |                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:427:19
[INFO] [stderr]     |
[INFO] [stderr] 22  | use std::{fmt, mem};
[INFO] [stderr]     |                --- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 427 |         use std::{mem, ptr};
[INFO] [stderr]     |                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/imprint-909800c9c303474f
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test arith::tests::it_works ... ok
[INFO] [stdout] test tests::exists ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests imprint
[INFO] [stdout] test ix::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - TyFn (line 322) ... ok
[INFO] [stdout] test src/lib.rs - IdF (line 340) ... ok
[INFO] [stdout] test src/lib.rs - TyEq<T, U>::apply (line 230) ... ok
[INFO] [stdout] test src/lib.rs - imprint (line 49) ... ok
[INFO] [stdout] test src/lib.rs - TyEq (line 177) ... ok
[INFO] [stdout] test src/lib.rs - TyEq<T, U>::apply (line 241) ... ok
[INFO] [stdout] test src/lib.rs - imprint (line 57) ... ok
[INFO] [stdout] test src/lib.rs - Exists (line 390) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "af39130bb19caadb1ba27820fb308c4de0f1a6c051a57556bdbffae80aab0dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af39130bb19caadb1ba27820fb308c4de0f1a6c051a57556bdbffae80aab0dac", kill_on_drop: false }`
[INFO] [stdout] af39130bb19caadb1ba27820fb308c4de0f1a6c051a57556bdbffae80aab0dac