[INFO] crate taskpool 0.1.0 is already in cache
[INFO] checking taskpool-0.1.0 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate taskpool 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate taskpool 0.1.0 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bfc216de1473e9b4aeadaf42490a11a965117ede0c416bcc6fe4227efdcfaf17
[INFO] running `"docker" "start" "-a" "bfc216de1473e9b4aeadaf42490a11a965117ede0c416bcc6fe4227efdcfaf17"`
[INFO] [stderr]    Compiling stainless v0.1.12
[INFO] [stderr]     Checking taskpool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `!`, `+`, `,`, `->`, `::`, or `>`, found `:`
[INFO] [stderr]   --> src/lib.rs:30:24
[INFO] [stderr]    |
[INFO] [stderr] 30 |     jobs: Sender<proc(): Send>,
[INFO] [stderr]    |                        ^ expected one of `!`, `+`, `,`, `->`, `::`, or `>`
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `!`, `+`, `,`, `->`, `::`, or `>`, found `:`
[INFO] [stderr]   --> src/lib.rs:37:48
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let (job_tx, job_rx) = channel::<proc(): Send>();
[INFO] [stderr]    |                                                ^ expected one of `!`, `+`, `,`, `->`, `::`, or `>`
[INFO] [stderr] 
[INFO] [stderr] error: expected parameter name, found `:`
[INFO] [stderr]   --> src/lib.rs:65:42
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn execute(&mut self, job: proc(): Send) {
[INFO] [stderr]    |                                          ^ expected parameter name
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `!`, `)`, `+`, `,`, `->`, or `::`, found `:`
[INFO] [stderr]   --> src/lib.rs:65:42
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn execute(&mut self, job: proc(): Send) {
[INFO] [stderr]    |                                          ^
[INFO] [stderr]    |                                          |
[INFO] [stderr]    |                                          expected one of `!`, `)`, `+`, `,`, `->`, or `::`
[INFO] [stderr]    |                                          help: missing `,`
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `!`, `+`, `,`, `->`, `::`, or `>`, found `:`
[INFO] [stderr]   --> src/lib.rs:77:49
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn spawn_in_pool(jobs: Arc<Mutex<Receiver<proc(): Send>>>,
[INFO] [stderr]    |                                                 ^ expected one of `!`, `+`, `,`, `->`, `::`, or `>`
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `{`
[INFO] [stderr]   --> src/lib.rs:79:18
[INFO] [stderr]    |
[INFO] [stderr] 79 |     spawn(proc() {
[INFO] [stderr]    |                 -^ expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: missing `,`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: non-builtin inner attributes are unstable
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![license = "MIT"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information
[INFO] [stderr]   = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stainless-0.1.12/src/lib.rs:7:30
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(plugin_registrar, quote, rustc_private)]
[INFO] [stderr]   |                              ^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `license` in this scope
[INFO] [stderr]  --> src/lib.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![license = "MIT"]
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Sender` in this scope
[INFO] [stderr]   --> src/lib.rs:16:14
[INFO] [stderr]    |
[INFO] [stderr] 16 |       monitor: Sender<MonitorMessage>
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: a trait with a similar name exists
[INFO] [stderr]    |
[INFO] [stderr] 16 |     monitor: Send<MonitorMessage>
[INFO] [stderr]    |              ^^^^
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 8  | use std::sync::mpsc::Sender;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `Died` in this scope
[INFO] [stderr]   --> src/lib.rs:22:39
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let _ = self.monitor.send_opt(Died);
[INFO] [stderr]    |                                       ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 8  | use MonitorMessage::Died;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/lib.rs:36:23
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn new(tasks: uint) -> TaskPool {
[INFO] [stderr]    |                       ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `proc` in this scope
[INFO] [stderr]   --> src/lib.rs:65:36
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn execute(&mut self, job: proc(): Send) {
[INFO] [stderr]    |                                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `Kill` in this scope
[INFO] [stderr]   --> src/lib.rs:73:27
[INFO] [stderr]    |
[INFO] [stderr] 73 |         self.monitor.send(Kill);
[INFO] [stderr]    |                           ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 8  | use MonitorMessage::Kill;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Sender` in this scope
[INFO] [stderr]   --> src/lib.rs:78:27
[INFO] [stderr]    |
[INFO] [stderr] 78 |                    monitor: Sender<MonitorMessage>) {
[INFO] [stderr]    |                             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: a trait with a similar name exists
[INFO] [stderr]    |
[INFO] [stderr] 78 |                  monitor: Send<MonitorMessage>) {
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 8  | use std::sync::mpsc::Sender;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `spawn` in this scope
[INFO] [stderr]   --> src/lib.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     spawn(proc() {
[INFO] [stderr]    |     ^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 8  | use std::thread::spawn;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `proc` in this scope
[INFO] [stderr]   --> src/lib.rs:79:11
[INFO] [stderr]    |
[INFO] [stderr] 79 |     spawn(proc() {
[INFO] [stderr]    |           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `jobs` in this scope
[INFO] [stderr]   --> src/lib.rs:87:28
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 let lock = jobs.lock();
[INFO] [stderr]    |                            ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: unused imports: `Arc`, `Mutex`
[INFO] [stderr]  --> src/lib.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::{Mutex, Arc};
[INFO] [stderr]   |                 ^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![deny(warnings, missing_docs)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `jobs` on type `&mut TaskPool`
[INFO] [stderr]   --> src/lib.rs:66:14
[INFO] [stderr]    |
[INFO] [stderr] 66 |         self.jobs.send(job)
[INFO] [stderr]    |              ^^^^ unknown field
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `monitor` on type `&mut TaskPool`
[INFO] [stderr]   --> src/lib.rs:73:14
[INFO] [stderr]    |
[INFO] [stderr] 73 |         self.monitor.send(Kill);
[INFO] [stderr]    |              ^^^^^^^ unknown field
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 20 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0425, E0609, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: could not compile `taskpool`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0463]: can't find crate for `syntax`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stainless-0.1.12/src/lib.rs:171:1
[INFO] [stderr]     |
[INFO] [stderr] 171 | extern crate syntax;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `stainless`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "bfc216de1473e9b4aeadaf42490a11a965117ede0c416bcc6fe4227efdcfaf17"`
[INFO] running `"docker" "rm" "-f" "bfc216de1473e9b4aeadaf42490a11a965117ede0c416bcc6fe4227efdcfaf17"`
[INFO] [stdout] bfc216de1473e9b4aeadaf42490a11a965117ede0c416bcc6fe4227efdcfaf17
