[INFO] fetching crate serde_cose 0.1.4...
[INFO] testing serde_cose-0.1.4 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate serde_cose 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate serde_cose 0.1.4
[INFO] finished tweaking crates.io crate serde_cose 0.1.4
[INFO] tweaked toml for crates.io crate serde_cose 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_cose 0.1.4 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde_cose 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d58e029dbfb493d4b0f997d6ba8a38297738b48d2295069f12bbe21e5a07c98
[INFO] running `Command { std: "docker" "start" "-a" "3d58e029dbfb493d4b0f997d6ba8a38297738b48d2295069f12bbe21e5a07c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d58e029dbfb493d4b0f997d6ba8a38297738b48d2295069f12bbe21e5a07c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d58e029dbfb493d4b0f997d6ba8a38297738b48d2295069f12bbe21e5a07c98", kill_on_drop: false }`
[INFO] [stdout] 3d58e029dbfb493d4b0f997d6ba8a38297738b48d2295069f12bbe21e5a07c98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0122a723867715ab32258ebb1c050d5df20ee0422000df4c5602a8584774f4f5
[INFO] running `Command { std: "docker" "start" "-a" "0122a723867715ab32258ebb1c050d5df20ee0422000df4c5602a8584774f4f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling zeroize v1.1.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.1
[INFO] [stderr]    Compiling curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling thiserror v1.0.21
[INFO] [stderr]    Compiling ed25519-zebra v2.2.0
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling serde_cose v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `convert::TryFrom`
[INFO] [stdout]   --> src/sign1.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::{collections, convert::TryFrom};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.34s
[INFO] running `Command { std: "docker" "inspect" "0122a723867715ab32258ebb1c050d5df20ee0422000df4c5602a8584774f4f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0122a723867715ab32258ebb1c050d5df20ee0422000df4c5602a8584774f4f5", kill_on_drop: false }`
[INFO] [stdout] 0122a723867715ab32258ebb1c050d5df20ee0422000df4c5602a8584774f4f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18684c8985d368e61d8950f7d3f9b53d64c82a40a8379f0454986dad300b0ba8
[INFO] running `Command { std: "docker" "start" "-a" "18684c8985d368e61d8950f7d3f9b53d64c82a40a8379f0454986dad300b0ba8", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stdout] warning: unused import: `convert::TryFrom`
[INFO] [stdout]   --> src/sign1.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::{collections, convert::TryFrom};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling serde_cose v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> examples/verify_sign1_ed25519.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 |         id => panic!(format!("user {} not found", id)),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 35 -         id => panic!(format!("user {} not found", id)),
[INFO] [stdout] 35 +         id => panic!("user {} not found", id),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `plaintext` is never read
[INFO] [stdout]   --> tests/serde_cose_test.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Input {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 14 |     plaintext: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Input` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sign1.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         key.verify(&mut sign1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let _ = key.verify(&mut sign1);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.71s
[INFO] running `Command { std: "docker" "inspect" "18684c8985d368e61d8950f7d3f9b53d64c82a40a8379f0454986dad300b0ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18684c8985d368e61d8950f7d3f9b53d64c82a40a8379f0454986dad300b0ba8", kill_on_drop: false }`
[INFO] [stdout] 18684c8985d368e61d8950f7d3f9b53d64c82a40a8379f0454986dad300b0ba8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 743d3c11894bddb53c8e89e882db8c47390531c65378c77774191cd2360e7426
[INFO] running `Command { std: "docker" "start" "-a" "743d3c11894bddb53c8e89e882db8c47390531c65378c77774191cd2360e7426", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `convert::TryFrom`
[INFO] [stderr]   --> src/sign1.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::{collections, convert::TryFrom};
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/sign1.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         key.verify(&mut sign1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let _ = key.verify(&mut sign1);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_cose` (lib) generated 1 warning (run `cargo fix --lib -p serde_cose` to apply 1 suggestion)
[INFO] [stderr] warning: `serde_cose` (lib test) generated 1 warning
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> examples/verify_sign1_ed25519.rs:35:22
[INFO] [stderr]    |
[INFO] [stderr] 35 |         id => panic!(format!("user {} not found", id)),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 35 -         id => panic!(format!("user {} not found", id)),
[INFO] [stderr] 35 +         id => panic!("user {} not found", id),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `plaintext` is never read
[INFO] [stderr]   --> tests/serde_cose_test.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct Input {
[INFO] [stderr]    |        ----- field in this struct
[INFO] [stderr] 14 |     plaintext: String,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Input` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_cose` (example "verify_sign1_ed25519") generated 1 warning (run `cargo fix --example "verify_sign1_ed25519"` to apply 1 suggestion)
[INFO] [stderr] warning: `serde_cose` (test "serde_cose_test") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_cose-75bfbf7e7dbd0249)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test sign1::tests::serializes_and_deseriaizes ... ok
[INFO] [stdout] test sign1::tests::signs_a_payload ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_cose_test.rs (/opt/rustwide/target/debug/deps/serde_cose_test-5f5775ad15147bc1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test deserializes_sign1_ed25519 ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- deserializes_sign1_ed25519 stdout ----
[INFO] [stdout] Error: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     deserializes_sign1_ed25519
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test serde_cose_test`
[INFO] running `Command { std: "docker" "inspect" "743d3c11894bddb53c8e89e882db8c47390531c65378c77774191cd2360e7426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743d3c11894bddb53c8e89e882db8c47390531c65378c77774191cd2360e7426", kill_on_drop: false }`
[INFO] [stdout] 743d3c11894bddb53c8e89e882db8c47390531c65378c77774191cd2360e7426
