[INFO] fetching crate k256 0.4.2...
[INFO] checking k256-0.4.2 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate k256 0.4.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate k256 0.4.2 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate k256 0.4.2
[INFO] finished tweaking crates.io crate k256 0.4.2
[INFO] tweaked toml for crates.io crate k256 0.4.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const-oid v0.1.0
[INFO] [stderr]   Downloaded ecdsa v0.7.2
[INFO] [stderr]   Downloaded elliptic-curve v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7dcedab32b10dbb8988afb228f84e341d05deeb87d8437730367fa5027a7ab6
[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" "d7dcedab32b10dbb8988afb228f84e341d05deeb87d8437730367fa5027a7ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7dcedab32b10dbb8988afb228f84e341d05deeb87d8437730367fa5027a7ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7dcedab32b10dbb8988afb228f84e341d05deeb87d8437730367fa5027a7ab6", kill_on_drop: false }`
[INFO] [stdout] d7dcedab32b10dbb8988afb228f84e341d05deeb87d8437730367fa5027a7ab6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8750d898dbb29e7fd14c9f56634a3a5d70a4d6c120800f33417e5e805bf848b
[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" "b8750d898dbb29e7fd14c9f56634a3a5d70a4d6c120800f33417e5e805bf848b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rayon-core v1.8.0
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking const-oid v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking remove_dir_all v0.5.3
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[INFO] [stderr]     Checking quick-error v1.2.3
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[INFO] [stderr]    Compiling hex-literal-impl v0.2.2
[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
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[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking elliptic-curve v0.5.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking ecdsa v0.7.2
[INFO] [stderr]     Checking k256 v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.3
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[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] error[E0432]: unresolved import `k256::FieldElement`
[INFO] [stdout]  --> bench/bench.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use k256::{FieldElement, ProjectivePoint, Scalar};
[INFO] [stdout]   |            ^^^^^^^^^^^^ no `FieldElement` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `k256::Scalar` in the current scope
[INFO] [stdout]  --> bench/bench.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Scalar::from_bytes(&[
[INFO] [stdout]   |             ^^^^^^^^^^ function or associated item not found in `k256::Scalar`
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]   |
[INFO] [stdout] 1 | use k256::elliptic_curve::FromBytes;
[INFO] [stdout]   |
[INFO] [stdout] help: there is an associated function with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Scalar::to_bytes(&[
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `k256::Scalar` in the current scope
[INFO] [stdout]   --> bench/bench.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Scalar::from_bytes(&[
[INFO] [stdout]    |             ^^^^^^^^^^ function or associated item not found in `k256::Scalar`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  | use k256::elliptic_curve::FromBytes;
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Scalar::to_bytes(&[
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `k256::Scalar` in the current scope
[INFO] [stdout]   --> bench/bench.rs:29:21
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let s = Scalar::from_bytes(m[..].try_into().unwrap()).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^ function or associated item not found in `k256::Scalar`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  | use k256::elliptic_curve::FromBytes;
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let s = Scalar::to_bytes(m[..].try_into().unwrap()).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `k256`.
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "b8750d898dbb29e7fd14c9f56634a3a5d70a4d6c120800f33417e5e805bf848b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8750d898dbb29e7fd14c9f56634a3a5d70a4d6c120800f33417e5e805bf848b", kill_on_drop: false }`
[INFO] [stdout] b8750d898dbb29e7fd14c9f56634a3a5d70a4d6c120800f33417e5e805bf848b