[INFO] fetching crate alt-std 0.2.9...
[INFO] testing alt-std-0.2.9 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate alt-std 0.2.9 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate alt-std 0.2.9 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55e5edcc0d640cb78caf1e993d8764dbd669de6ac62c0d468decc9ec1142c678
[INFO] running `Command { std: "docker" "start" "-a" "55e5edcc0d640cb78caf1e993d8764dbd669de6ac62c0d468decc9ec1142c678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55e5edcc0d640cb78caf1e993d8764dbd669de6ac62c0d468decc9ec1142c678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55e5edcc0d640cb78caf1e993d8764dbd669de6ac62c0d468decc9ec1142c678", kill_on_drop: false }`
[INFO] [stdout] 55e5edcc0d640cb78caf1e993d8764dbd669de6ac62c0d468decc9ec1142c678
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a794346af84bd2d2289256de3636251c8c0fcb223b45dcc8c639b507ecc55c5d
[INFO] running `Command { std: "docker" "start" "-a" "a794346af84bd2d2289256de3636251c8c0fcb223b45dcc8c639b507ecc55c5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling alt-std v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `core::mem::needs_drop` to detect whether a type can be trivially dropped
[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 0.89s
[INFO] running `Command { std: "docker" "inspect" "a794346af84bd2d2289256de3636251c8c0fcb223b45dcc8c639b507ecc55c5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a794346af84bd2d2289256de3636251c8c0fcb223b45dcc8c639b507ecc55c5d", kill_on_drop: false }`
[INFO] [stdout] a794346af84bd2d2289256de3636251c8c0fcb223b45dcc8c639b507ecc55c5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfed434b11f35d13a2760f9cea8cf5d1e102f833540404eed1ab70b64cfbc935
[INFO] running `Command { std: "docker" "start" "-a" "bfed434b11f35d13a2760f9cea8cf5d1e102f833540404eed1ab70b64cfbc935", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling alt-std v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `core::mem::needs_drop` to detect whether a type can be trivially dropped
[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 most likely incorrect, consider instead using `core::mem::needs_drop` to detect whether a type can be trivially dropped
[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 1.10s
[INFO] running `Command { std: "docker" "inspect" "bfed434b11f35d13a2760f9cea8cf5d1e102f833540404eed1ab70b64cfbc935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfed434b11f35d13a2760f9cea8cf5d1e102f833540404eed1ab70b64cfbc935", kill_on_drop: false }`
[INFO] [stdout] bfed434b11f35d13a2760f9cea8cf5d1e102f833540404eed1ab70b64cfbc935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca784278672f0cc29edd8d1b9e98fee1b22e26558865c3492358a8aa5b2c776a
[INFO] running `Command { std: "docker" "start" "-a" "ca784278672f0cc29edd8d1b9e98fee1b22e26558865c3492358a8aa5b2c776a", kill_on_drop: false }`
[INFO] [stderr] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `core::mem::needs_drop` to detect whether a type can be trivially dropped
[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: `alt-std` (lib) generated 1 warning
[INFO] [stderr] warning: `alt-std` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/alt_std-7addc9912694b8b2)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test hashmap::test::testInsert ... ok
[INFO] [stdout] test string::tests::testConversion ... ok
[INFO] [stdout] test vec::tests::testIter ... ok
[INFO] [stdout] test mem::tests::testBoxUnbox ... ok
[INFO] [stdout] test mem::tests::testBoxFromToRaw ... ok
[INFO] [stdout] test vec::tests::testDestructor ... ok
[INFO] [stdout] test stream::tests::testMemoryWriteStream ... ok
[INFO] [stdout] test stream::tests::testMemoryReadStream ... ok
[INFO] [stdout] test mem::tests::testDrop ... ok
[INFO] [stdout] test hashmap::test::testRemove ... ok
[INFO] [stdout] test hashmap::test::testVecInsert ... ok
[INFO] [stdout] test hashmap::test::testVecRemove ... ok
[INFO] [stdout] test mem::tests::testBoxUnboxVecVec ... ok
[INFO] [stdout] test mem::tests::testDropVecVec ... ok
[INFO] [stdout] test vec::tests::testPopDestructor ... ok
[INFO] [stdout] test vec::tests::testPopDestructorPush ... ok
[INFO] [stdout] test io::tests::testCreateReadRemoveFile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[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 1.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ca784278672f0cc29edd8d1b9e98fee1b22e26558865c3492358a8aa5b2c776a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca784278672f0cc29edd8d1b9e98fee1b22e26558865c3492358a8aa5b2c776a", kill_on_drop: false }`
[INFO] [stdout] ca784278672f0cc29edd8d1b9e98fee1b22e26558865c3492358a8aa5b2c776a