[INFO] cloning repository https://github.com/yuhime/rust-tcp-rsa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuhime/rust-tcp-rsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuhime%2Frust-tcp-rsa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuhime%2Frust-tcp-rsa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4878589cb1bee68d875a0409030504b79bc79f83
[INFO] checking yuhime/rust-tcp-rsa against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuhime%2Frust-tcp-rsa" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuhime/rust-tcp-rsa on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuhime/rust-tcp-rsa
[INFO] finished tweaking git repo https://github.com/yuhime/rust-tcp-rsa
[INFO] tweaked toml for git repo https://github.com/yuhime/rust-tcp-rsa written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yuhime/rust-tcp-rsa 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07ef028c6689dbca0fd2cf2b716be3604bbb1913e16ec015d962909a2ab9d022
[INFO] running `Command { std: "docker" "start" "-a" "07ef028c6689dbca0fd2cf2b716be3604bbb1913e16ec015d962909a2ab9d022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07ef028c6689dbca0fd2cf2b716be3604bbb1913e16ec015d962909a2ab9d022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07ef028c6689dbca0fd2cf2b716be3604bbb1913e16ec015d962909a2ab9d022", kill_on_drop: false }`
[INFO] [stdout] 07ef028c6689dbca0fd2cf2b716be3604bbb1913e16ec015d962909a2ab9d022
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48e26d910b1c3f4c8963b9f95f6a501cb246ea0e552831fbd4129a48c22fa2a0
[INFO] running `Command { std: "docker" "start" "-a" "48e26d910b1c3f4c8963b9f95f6a501cb246ea0e552831fbd4129a48c22fa2a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]     Checking der v0.7.8
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking pkcs1 v0.7.5
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking rsa v0.9.6
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking end-to-end v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> examples/alice.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand;
[INFO] [stdout]   |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.39s
[INFO] running `Command { std: "docker" "inspect" "48e26d910b1c3f4c8963b9f95f6a501cb246ea0e552831fbd4129a48c22fa2a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48e26d910b1c3f4c8963b9f95f6a501cb246ea0e552831fbd4129a48c22fa2a0", kill_on_drop: false }`
[INFO] [stdout] 48e26d910b1c3f4c8963b9f95f6a501cb246ea0e552831fbd4129a48c22fa2a0
[INFO] checking yuhime/rust-tcp-rsa against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuhime%2Frust-tcp-rsa" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuhime/rust-tcp-rsa on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuhime/rust-tcp-rsa
[INFO] finished tweaking git repo https://github.com/yuhime/rust-tcp-rsa
[INFO] tweaked toml for git repo https://github.com/yuhime/rust-tcp-rsa written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yuhime/rust-tcp-rsa 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1566eeec88e5c01a4f5cde7acd33382536e3b956f09eed527afcc992f1938573
[INFO] running `Command { std: "docker" "start" "-a" "1566eeec88e5c01a4f5cde7acd33382536e3b956f09eed527afcc992f1938573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1566eeec88e5c01a4f5cde7acd33382536e3b956f09eed527afcc992f1938573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1566eeec88e5c01a4f5cde7acd33382536e3b956f09eed527afcc992f1938573", kill_on_drop: false }`
[INFO] [stdout] 1566eeec88e5c01a4f5cde7acd33382536e3b956f09eed527afcc992f1938573
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2864b97bc64bf75ae1415d8abedc1b4ead0bdd8ed7287913860b2e81492f0a01
[INFO] running `Command { std: "docker" "start" "-a" "2864b97bc64bf75ae1415d8abedc1b4ead0bdd8ed7287913860b2e81492f0a01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]     Checking der v0.7.8
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking pkcs1 v0.7.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking rsa v0.9.6
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking end-to-end v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> examples/alice.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand;
[INFO] [stdout]   |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.45s
[INFO] running `Command { std: "docker" "inspect" "2864b97bc64bf75ae1415d8abedc1b4ead0bdd8ed7287913860b2e81492f0a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2864b97bc64bf75ae1415d8abedc1b4ead0bdd8ed7287913860b2e81492f0a01", kill_on_drop: false }`
[INFO] [stdout] 2864b97bc64bf75ae1415d8abedc1b4ead0bdd8ed7287913860b2e81492f0a01