[INFO] fetching crate synac 0.6.2...
[INFO] checking synac-0.6.2 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate synac 0.6.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate synac 0.6.2 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synac 0.6.2
[INFO] finished tweaking crates.io crate synac 0.6.2
[INFO] tweaked toml for crates.io crate synac 0.6.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 212fdc120ef0266c7c1596b3f7d0abb33c7e28346b08e8425acb5b9fec89c8ea
[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" "212fdc120ef0266c7c1596b3f7d0abb33c7e28346b08e8425acb5b9fec89c8ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "212fdc120ef0266c7c1596b3f7d0abb33c7e28346b08e8425acb5b9fec89c8ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "212fdc120ef0266c7c1596b3f7d0abb33c7e28346b08e8425acb5b9fec89c8ea", kill_on_drop: false }`
[INFO] [stdout] 212fdc120ef0266c7c1596b3f7d0abb33c7e28346b08e8425acb5b9fec89c8ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 007e610a71459562983ffc032967b3154baf92c4807031ce30b2bac23aecfee6
[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" "007e610a71459562983ffc032967b3154baf92c4807031ce30b2bac23aecfee6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking rustc-demangle v0.1.17
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking synac v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `futures`
[INFO] [stdout]  --> examples/tokio.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate futures;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synac`
[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] [stdout] error: environment variable `ADDR` not defined
[INFO] [stdout]  --> examples/main.rs:7:36
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut session = Session::new(env!("ADDR"), env!("HASH")).unwrap();
[INFO] [stdout]   |                                    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `HASH` not defined
[INFO] [stdout]  --> examples/main.rs:7:50
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut session = Session::new(env!("ADDR"), env!("HASH")).unwrap();
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `USERNAME` not defined
[INFO] [stdout]  --> examples/main.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 |     session.login_with_token(true, env!("USERNAME"), env!("TOKEN")).unwrap(); // true specifies it's a bot account
[INFO] [stdout]   |                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `TOKEN` not defined
[INFO] [stdout]  --> examples/main.rs:8:54
[INFO] [stdout]   |
[INFO] [stdout] 8 |     session.login_with_token(true, env!("USERNAME"), env!("TOKEN")).unwrap(); // true specifies it's a bot account
[INFO] [stdout]   |                                                      ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `ADDR` not defined
[INFO] [stdout]  --> examples/nonblocking.rs:9:36
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut session = Session::new(env!("ADDR"), env!("HASH")).unwrap();
[INFO] [stdout]   |                                    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `HASH` not defined
[INFO] [stdout]  --> examples/nonblocking.rs:9:50
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut session = Session::new(env!("ADDR"), env!("HASH")).unwrap();
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `USERNAME` not defined
[INFO] [stdout]   --> examples/nonblocking.rs:10:36
[INFO] [stdout]    |
[INFO] [stdout] 10 |     session.login_with_token(true, env!("USERNAME"), env!("TOKEN")).unwrap(); // true specifies it's a bot account
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `TOKEN` not defined
[INFO] [stdout]   --> examples/nonblocking.rs:10:54
[INFO] [stdout]    |
[INFO] [stdout] 10 |     session.login_with_token(true, env!("USERNAME"), env!("TOKEN")).unwrap(); // true specifies it's a bot account
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "007e610a71459562983ffc032967b3154baf92c4807031ce30b2bac23aecfee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "007e610a71459562983ffc032967b3154baf92c4807031ce30b2bac23aecfee6", kill_on_drop: false }`
[INFO] [stdout] 007e610a71459562983ffc032967b3154baf92c4807031ce30b2bac23aecfee6