[INFO] fetching crate alt-std 0.2.9...
[INFO] testing alt-std-0.2.9 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate alt-std 0.2.9 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate alt-std 0.2.9 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alt-std 0.2.9
[INFO] finished tweaking crates.io crate alt-std 0.2.9
[INFO] tweaked toml for crates.io crate alt-std 0.2.9 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf9704522d843462ba3e732bd33c1398d5d3703d0e4c979bf508a5d179f8a980
[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" "cf9704522d843462ba3e732bd33c1398d5d3703d0e4c979bf508a5d179f8a980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf9704522d843462ba3e732bd33c1398d5d3703d0e4c979bf508a5d179f8a980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9704522d843462ba3e732bd33c1398d5d3703d0e4c979bf508a5d179f8a980", kill_on_drop: false }`
[INFO] [stdout] cf9704522d843462ba3e732bd33c1398d5d3703d0e4c979bf508a5d179f8a980
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb11f90fb25ca7404dbcdf11274f6a7caa48faf92812808b3f77fc9c824e02db
[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" "eb11f90fb25ca7404dbcdf11274f6a7caa48faf92812808b3f77fc9c824e02db", kill_on_drop: false }`
[INFO] [stderr]    Compiling alt-std v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: bounds on `Self: Drop` are useless, consider instead using `core::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout]  --> src/stream.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Stream : Drop {
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(drop_bounds)]` 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 0.57s
[INFO] running `Command { std: "docker" "inspect" "eb11f90fb25ca7404dbcdf11274f6a7caa48faf92812808b3f77fc9c824e02db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb11f90fb25ca7404dbcdf11274f6a7caa48faf92812808b3f77fc9c824e02db", kill_on_drop: false }`
[INFO] [stdout] eb11f90fb25ca7404dbcdf11274f6a7caa48faf92812808b3f77fc9c824e02db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c045e0ee8a53fd885e13256643f3c8cd73fd7ab51e6c0b48878e7f91dca963d
[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" "2c045e0ee8a53fd885e13256643f3c8cd73fd7ab51e6c0b48878e7f91dca963d", kill_on_drop: false }`
[INFO] [stderr]    Compiling alt-std v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: bounds on `Self: Drop` are useless, consider instead using `core::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout]  --> src/stream.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Stream : Drop {
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are useless, consider instead using `core::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout]  --> src/stream.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Stream : Drop {
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(drop_bounds)]` 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 1.43s
[INFO] running `Command { std: "docker" "inspect" "2c045e0ee8a53fd885e13256643f3c8cd73fd7ab51e6c0b48878e7f91dca963d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c045e0ee8a53fd885e13256643f3c8cd73fd7ab51e6c0b48878e7f91dca963d", kill_on_drop: false }`
[INFO] [stdout] 2c045e0ee8a53fd885e13256643f3c8cd73fd7ab51e6c0b48878e7f91dca963d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] a8b9a2d00d3642d74a57547dee091e0e36e79dee0f65e320ea0f7b15c9db05de
[INFO] running `Command { std: "docker" "start" "-a" "a8b9a2d00d3642d74a57547dee091e0e36e79dee0f65e320ea0f7b15c9db05de", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: bounds on `Self: Drop` are useless, consider instead using `core::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout] running 17 tests
[INFO] [stderr]  --> src/stream.rs:3:20
[INFO] [stdout] test hashmap::test::testRemove ... ok
[INFO] [stderr]   |
[INFO] [stdout] test string::tests::testConversion ... ok
[INFO] [stderr] 3 | pub trait Stream : Drop {
[INFO] [stdout] test vec::tests::testIter ... ok
[INFO] [stderr]   |                    ^^^^
[INFO] [stdout] test mem::tests::testBoxUnbox ... ok
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(drop_bounds)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on `Self: Drop` are useless, consider instead using `core::mem::needs_drop` to detect if a type has a destructor
[INFO] [stderr]  --> src/stream.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub trait Stream : Drop {
[INFO] [stderr]   |                    ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(drop_bounds)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/alt_std-48f2095b3d4bb1ac)
[INFO] [stdout] test hashmap::test::testVecRemove ... ok
[INFO] [stdout] test io::tests::testCreateReadRemoveFile ... ok
[INFO] [stdout] test vec::tests::testDestructor ... ok
[INFO] [stdout] test mem::tests::testBoxFromToRaw ... ok
[INFO] [stdout] test mem::tests::testDrop ... ok
[INFO] [stdout] test hashmap::test::testInsert ... ok
[INFO] [stdout] test vec::tests::testPopDestructor ... ok
[INFO] [stdout] test mem::tests::testDropVecVec ... ok
[INFO] [stdout] test stream::tests::testMemoryReadStream ... ok
[INFO] [stdout] test stream::tests::testMemoryWriteStream ... ok
[INFO] [stdout] test vec::tests::testPopDestructorPush ... ok
[INFO] [stdout] test mem::tests::testBoxUnboxVecVec ... ok
[INFO] [stdout] test hashmap::test::testVecInsert ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests alt-std
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/mem.rs - mem::Box<T>::new (line 56) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a8b9a2d00d3642d74a57547dee091e0e36e79dee0f65e320ea0f7b15c9db05de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b9a2d00d3642d74a57547dee091e0e36e79dee0f65e320ea0f7b15c9db05de", kill_on_drop: false }`
[INFO] [stdout] a8b9a2d00d3642d74a57547dee091e0e36e79dee0f65e320ea0f7b15c9db05de