[INFO] fetching crate nbd 0.3.0...
[INFO] checking nbd-0.3.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate nbd 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate nbd 0.3.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nbd 0.3.0
[INFO] finished tweaking crates.io crate nbd 0.3.0
[INFO] tweaked toml for crates.io crate nbd 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate nbd 0.3.0 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded readwrite v0.1.2
[INFO] [stderr]   Downloaded pipe v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c816974cf55eaac3e1d79a288e6f073f3b37e5f9dc544a20fdb9c79f99adfbd4
[INFO] running `Command { std: "docker" "start" "-a" "c816974cf55eaac3e1d79a288e6f073f3b37e5f9dc544a20fdb9c79f99adfbd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c816974cf55eaac3e1d79a288e6f073f3b37e5f9dc544a20fdb9c79f99adfbd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c816974cf55eaac3e1d79a288e6f073f3b37e5f9dc544a20fdb9c79f99adfbd4", kill_on_drop: false }`
[INFO] [stdout] c816974cf55eaac3e1d79a288e6f073f3b37e5f9dc544a20fdb9c79f99adfbd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9425c058e216be3d1f51b362ddb9817fcd276edeab0b4a85a1aa6eec7aecf9fe
[INFO] running `Command { std: "docker" "start" "-a" "9425c058e216be3d1f51b362ddb9817fcd276edeab0b4a85a1aa6eec7aecf9fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking readwrite v0.1.2
[INFO] [stderr]     Checking pipe v0.0.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking nbd v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stdout] error[E0277]: expected a `FnOnce(&str)` closure, found `&Export<_>`
[INFO] [stdout]    --> tests/fuzz_hs.rs:60:46
[INFO] [stdout]     |
[INFO] [stdout] 60  |         let ret = nbd::server::handshake(s, &exp);
[INFO] [stdout]     |                   ----------------------     ^^^ expected an `FnOnce(&str)` closure, found `&Export<_>`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `for<'a> Fn<(&'a str,)>` is not implemented for `&Export<_>`, which is required by `for<'a> &Export<_>: FnOnce(&'a str)`
[INFO] [stdout]     = note: required for `&Export<_>` to implement `for<'a> FnOnce<(&'a str,)>`
[INFO] [stdout] note: required by a bound in `nbd::server::handshake`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:105:49
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn handshake<IO: Write + Read, Data, F: FnOnce(&str) -> Result<Export<Data>>>(mut c: IO, exports: F) -> Result<Data> {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `handshake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnOnce(&str)` closure, found `Export<_>`
[INFO] [stdout]    --> tests/fuzz_hs.rs:60:45
[INFO] [stdout]     |
[INFO] [stdout] 60  |         let ret = nbd::server::handshake(s, &exp);
[INFO] [stdout]     |                   ----------------------    ^^^^ expected an `FnOnce(&str)` closure, found `Export<_>`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `for<'a> FnOnce<(&'a str,)>` is not implemented for `Export<_>`
[INFO] [stdout] note: required by a bound in `nbd::server::handshake`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:105:65
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn handshake<IO: Write + Read, Data, F: FnOnce(&str) -> Result<Export<Data>>>(mut c: IO, exports: F) -> Result<Data> {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^^^ required by this bound in `handshake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nbd` (test "fuzz_hs") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9425c058e216be3d1f51b362ddb9817fcd276edeab0b4a85a1aa6eec7aecf9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9425c058e216be3d1f51b362ddb9817fcd276edeab0b4a85a1aa6eec7aecf9fe", kill_on_drop: false }`
[INFO] [stdout] 9425c058e216be3d1f51b362ddb9817fcd276edeab0b4a85a1aa6eec7aecf9fe
[INFO] checking nbd-0.3.0 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate nbd 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate nbd 0.3.0 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nbd 0.3.0
[INFO] finished tweaking crates.io crate nbd 0.3.0
[INFO] tweaked toml for crates.io crate nbd 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate nbd 0.3.0 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9aee181a8072d24e73fceb2c0a25513485374a0238cc0598f08fae4feef5d26b
[INFO] running `Command { std: "docker" "start" "-a" "9aee181a8072d24e73fceb2c0a25513485374a0238cc0598f08fae4feef5d26b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9aee181a8072d24e73fceb2c0a25513485374a0238cc0598f08fae4feef5d26b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aee181a8072d24e73fceb2c0a25513485374a0238cc0598f08fae4feef5d26b", kill_on_drop: false }`
[INFO] [stdout] 9aee181a8072d24e73fceb2c0a25513485374a0238cc0598f08fae4feef5d26b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29e0a3d722cf612418b2cd87c4fa10cf800197d116f09f6ac0089f3b6d7df9df
[INFO] running `Command { std: "docker" "start" "-a" "29e0a3d722cf612418b2cd87c4fa10cf800197d116f09f6ac0089f3b6d7df9df", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking pipe v0.0.3
[INFO] [stderr]     Checking readwrite v0.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking nbd v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stdout] error[E0277]: expected a `FnOnce(&str)` closure, found `&Export<_>`
[INFO] [stdout]    --> tests/fuzz_hs.rs:60:46
[INFO] [stdout]     |
[INFO] [stdout] 60  |         let ret = nbd::server::handshake(s, &exp);
[INFO] [stdout]     |                   ----------------------     ^^^ expected an `FnOnce(&str)` closure, found `&Export<_>`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `for<'a> Fn<(&'a str,)>` is not implemented for `&Export<_>`, which is required by `for<'a> &Export<_>: FnOnce(&'a str)`
[INFO] [stdout]     = note: required for `&Export<_>` to implement `for<'a> FnOnce<(&'a str,)>`
[INFO] [stdout] note: required by a bound in `nbd::server::handshake`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:105:49
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn handshake<IO: Write + Read, Data, F: FnOnce(&str) -> Result<Export<Data>>>(mut c: IO, exports: F) -> Result<Data> {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `handshake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnOnce(&str)` closure, found `Export<_>`
[INFO] [stdout]    --> tests/fuzz_hs.rs:60:45
[INFO] [stdout]     |
[INFO] [stdout] 60  |         let ret = nbd::server::handshake(s, &exp);
[INFO] [stdout]     |                   ----------------------    ^^^^ expected an `FnOnce(&str)` closure, found `Export<_>`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `for<'a> FnOnce<(&'a str,)>` is not implemented for `Export<_>`
[INFO] [stdout] note: required by a bound in `nbd::server::handshake`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:105:65
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn handshake<IO: Write + Read, Data, F: FnOnce(&str) -> Result<Export<Data>>>(mut c: IO, exports: F) -> Result<Data> {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^^^ required by this bound in `handshake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nbd` (test "fuzz_hs") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "29e0a3d722cf612418b2cd87c4fa10cf800197d116f09f6ac0089f3b6d7df9df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29e0a3d722cf612418b2cd87c4fa10cf800197d116f09f6ac0089f3b6d7df9df", kill_on_drop: false }`
[INFO] [stdout] 29e0a3d722cf612418b2cd87c4fa10cf800197d116f09f6ac0089f3b6d7df9df
