[INFO] fetching crate taskpool 0.1.0...
[INFO] building taskpool-0.1.0 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate taskpool 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate taskpool 0.1.0 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate taskpool 0.1.0
[INFO] finished tweaking crates.io crate taskpool 0.1.0
[INFO] tweaked toml for crates.io crate taskpool 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4919fa626484485270549cd73544dd87cad95f565852deb5c4b66d1385ddbd8
[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" "e4919fa626484485270549cd73544dd87cad95f565852deb5c4b66d1385ddbd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4919fa626484485270549cd73544dd87cad95f565852deb5c4b66d1385ddbd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4919fa626484485270549cd73544dd87cad95f565852deb5c4b66d1385ddbd8", kill_on_drop: false }`
[INFO] [stdout] e4919fa626484485270549cd73544dd87cad95f565852deb5c4b66d1385ddbd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3253711b70dcd0d8ca31fee085742bdba040d48196587f2afc7839f5e7d0d20
[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" "f3253711b70dcd0d8ca31fee085742bdba040d48196587f2afc7839f5e7d0d20", kill_on_drop: false }`
[INFO] [stderr]    Compiling taskpool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `{`
[INFO] [stdout]   --> src/lib.rs:47:22
[INFO] [stdout]    |
[INFO] [stdout] 47 |         spawn(proc() {
[INFO] [stdout]    |                     -^ expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]   --> src/lib.rs:65:42
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn execute(&mut self, job: proc(): Send) {
[INFO] [stdout]    |                                          ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `)`, `+`, `,`, `->`, or `::`, found `:`
[INFO] [stdout]   --> src/lib.rs:65:42
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn execute(&mut self, job: proc(): Send) {
[INFO] [stdout]    |                                          ^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          expected one of `!`, `)`, `+`, `,`, `->`, or `::`
[INFO] [stdout]    |                                          help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `{`
[INFO] [stdout]   --> src/lib.rs:79:18
[INFO] [stdout]    |
[INFO] [stdout] 79 |     spawn(proc() {
[INFO] [stdout]    |                 -^ expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: associated type bounds are not allowed within structs, enums, or unions
[INFO] [stdout]   --> src/lib.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |     jobs: Sender<proc(): Send>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `license` in this scope
[INFO] [stdout]  --> src/lib.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![license = "MIT"]
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Sender` in this scope
[INFO] [stdout]   --> src/lib.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |       monitor: Sender<MonitorMessage>
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 16 |     monitor: Send<MonitorMessage>
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::sync::mpsc::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Died` in this scope
[INFO] [stdout]   --> src/lib.rs:22:39
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let _ = self.monitor.send_opt(Died);
[INFO] [stdout]    |                                       ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this unit variant
[INFO] [stdout]    |
[INFO] [stdout] 8  | use MonitorMessage::Died;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Sender` in this scope
[INFO] [stdout]   --> src/lib.rs:30:11
[INFO] [stdout]    |
[INFO] [stdout] 30 |       jobs: Sender<proc(): Send>,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 30 |     jobs: Send<proc(): Send>,
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::sync::mpsc::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Sender` in this scope
[INFO] [stdout]   --> src/lib.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |       monitor: Sender<MonitorMessage>,
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 31 |     monitor: Send<MonitorMessage>,
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::sync::mpsc::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]   --> src/lib.rs:36:23
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn new(tasks: uint) -> TaskPool {
[INFO] [stdout]    |                       ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `channel` in this scope
[INFO] [stdout]   --> src/lib.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let (job_tx, job_rx) = channel::<proc(): Send>();
[INFO] [stdout]    |                                ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::sync::mpsc::channel;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `channel` in this scope
[INFO] [stdout]   --> src/lib.rs:39:34
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let (quit_tx, quit_rx) = channel::<MonitorMessage>();
[INFO] [stdout]    |                                  ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::sync::mpsc::channel;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `spawn` in this scope
[INFO] [stdout]   --> src/lib.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         spawn(proc() {
[INFO] [stdout]    |         ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::thread::spawn;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `proc` in this scope
[INFO] [stdout]   --> src/lib.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |         spawn(proc() {
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/lib.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         for _ in range(0, tasks) {
[INFO] [stdout]    |                  ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `proc` in this scope
[INFO] [stdout]   --> src/lib.rs:65:36
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn execute(&mut self, job: proc(): Send) {
[INFO] [stdout]    |                                    ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Kill` in this scope
[INFO] [stdout]   --> src/lib.rs:73:27
[INFO] [stdout]    |
[INFO] [stdout] 73 |         self.monitor.send(Kill);
[INFO] [stdout]    |                           ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this unit variant
[INFO] [stdout]    |
[INFO] [stdout] 8  | use MonitorMessage::Kill;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Receiver` in this scope
[INFO] [stdout]   --> src/lib.rs:77:34
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn spawn_in_pool(jobs: Arc<Mutex<Receiver<proc(): Send>>>,
[INFO] [stdout]    |                                  ^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::ops::Receiver;
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::sync::mpsc::Receiver;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Sender` in this scope
[INFO] [stdout]   --> src/lib.rs:78:27
[INFO] [stdout]    |
[INFO] [stdout] 78 |                    monitor: Sender<MonitorMessage>) {
[INFO] [stdout]    |                             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 78 |                  monitor: Send<MonitorMessage>) {
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::sync::mpsc::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `spawn` in this scope
[INFO] [stdout]   --> src/lib.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     spawn(proc() {
[INFO] [stdout]    |     ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 8  | use std::thread::spawn;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `proc` in this scope
[INFO] [stdout]   --> src/lib.rs:79:11
[INFO] [stdout]    |
[INFO] [stdout] 79 |     spawn(proc() {
[INFO] [stdout]    |           ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: associated type bounds are unstable
[INFO] [stdout]   --> src/lib.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |     jobs: Sender<proc(): Send>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information
[INFO] [stdout]    = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: associated type bounds are unstable
[INFO] [stdout]   --> src/lib.rs:37:42
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let (job_tx, job_rx) = channel::<proc(): Send>();
[INFO] [stdout]    |                                          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information
[INFO] [stdout]    = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: associated type bounds are unstable
[INFO] [stdout]   --> src/lib.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn spawn_in_pool(jobs: Arc<Mutex<Receiver<proc(): Send>>>,
[INFO] [stdout]    |                                           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information
[INFO] [stdout]    = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: parenthesized generic arguments cannot be used in associated type constraints
[INFO] [stdout]   --> src/lib.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |     jobs: Sender<proc(): Send>,
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: parenthesized generic arguments cannot be used in associated type constraints
[INFO] [stdout]   --> src/lib.rs:37:42
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let (job_tx, job_rx) = channel::<proc(): Send>();
[INFO] [stdout]    |                                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: parenthesized generic arguments cannot be used in associated type constraints
[INFO] [stdout]   --> src/lib.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn spawn_in_pool(jobs: Arc<Mutex<Receiver<proc(): Send>>>,
[INFO] [stdout]    |                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0069]: `return;` in a function whose return type is not `()`
[INFO] [stdout]   --> src/lib.rs:51:29
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     Kill => return
[INFO] [stdout]    |                             ^^^^^^ return type is not `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 29 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0069, E0412, E0425, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0069`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `taskpool`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f3253711b70dcd0d8ca31fee085742bdba040d48196587f2afc7839f5e7d0d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3253711b70dcd0d8ca31fee085742bdba040d48196587f2afc7839f5e7d0d20", kill_on_drop: false }`
[INFO] [stdout] f3253711b70dcd0d8ca31fee085742bdba040d48196587f2afc7839f5e7d0d20
