[INFO] fetching crate flowc 0.36.0...
[INFO] testing flowc-0.36.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate flowc 0.36.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate flowc 0.36.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flowc 0.36.0
[INFO] finished tweaking crates.io crate flowc 0.36.0
[INFO] tweaked toml for crates.io crate flowc 0.36.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate flowc 0.36.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fd2f4a4bf5194553eed20d9f714e350357b686fc2e9f29054b611226cb0af71
[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" "0fd2f4a4bf5194553eed20d9f714e350357b686fc2e9f29054b611226cb0af71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fd2f4a4bf5194553eed20d9f714e350357b686fc2e9f29054b611226cb0af71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fd2f4a4bf5194553eed20d9f714e350357b686fc2e9f29054b611226cb0af71", kill_on_drop: false }`
[INFO] [stdout] 0fd2f4a4bf5194553eed20d9f714e350357b686fc2e9f29054b611226cb0af71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5ab0e0175dbb3df545395f3c518e2c710a824f6c61860f17ab17a60850c15b3
[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" "d5ab0e0175dbb3df545395f3c518e2c710a824f6c61860f17ab17a60850c15b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling simplog v1.2.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling shrinkwraprs v0.2.3
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_yaml v0.8.17
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling simpath v2.3.0
[INFO] [stderr]    Compiling flowcore v0.36.0
[INFO] [stderr]    Compiling flowc v0.36.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute `doc`
[INFO] [stdout]  --> src/lib/errors.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[doc(hidden)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `doc` will be ignored, since it's applied to the macro invocation `error_chain`
[INFO] [stdout]  --> src/lib/errors.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | error_chain! {
[INFO] [stdout]   | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.84s
[INFO] running `Command { std: "docker" "inspect" "d5ab0e0175dbb3df545395f3c518e2c710a824f6c61860f17ab17a60850c15b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5ab0e0175dbb3df545395f3c518e2c710a824f6c61860f17ab17a60850c15b3", kill_on_drop: false }`
[INFO] [stdout] d5ab0e0175dbb3df545395f3c518e2c710a824f6c61860f17ab17a60850c15b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d2183bf64d1931743dd30057a0d79f9fceb4bd5bf0b0886b000dbeb24013231
[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" "2d2183bf64d1931743dd30057a0d79f9fceb4bd5bf0b0886b000dbeb24013231", kill_on_drop: false }`
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stdout] warning: unused attribute `doc`
[INFO] [stdout]  --> src/lib/errors.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[doc(hidden)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `doc` will be ignored, since it's applied to the macro invocation `error_chain`
[INFO] [stdout]  --> src/lib/errors.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | error_chain! {
[INFO] [stdout]   | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling serial_test v0.5.1
[INFO] [stderr]    Compiling flowc v0.36.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read src/lib/compiler/../../../tests/test_libs/Cargo.toml: No such file or directory (os error 2)
[INFO] [stdout]    --> src/lib/compiler/loader.rs:279:24
[INFO] [stdout]     |
[INFO] [stdout] 279 |         let contents = include_str!("../../../tests/test_libs/Cargo.toml");
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `doc`
[INFO] [stdout]   --> tests/flowc-execution_tests.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[doc(hidden)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `doc` will be ignored, since it's applied to the macro invocation `error_chain`
[INFO] [stdout]   --> tests/flowc-execution_tests.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | error_chain! {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `doc`
[INFO] [stdout]  --> src/lib/errors.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[doc(hidden)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `doc` will be ignored, since it's applied to the macro invocation `error_chain`
[INFO] [stdout]  --> src/lib/errors.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | error_chain! {
[INFO] [stdout]   | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flowc` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2d2183bf64d1931743dd30057a0d79f9fceb4bd5bf0b0886b000dbeb24013231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d2183bf64d1931743dd30057a0d79f9fceb4bd5bf0b0886b000dbeb24013231", kill_on_drop: false }`
[INFO] [stdout] 2d2183bf64d1931743dd30057a0d79f9fceb4bd5bf0b0886b000dbeb24013231