[INFO] fetching crate t-ssh-client 0.2.1...
[INFO] checking t-ssh-client-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate t-ssh-client 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate t-ssh-client 0.2.1 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 crates.io crate t-ssh-client 0.2.1
[INFO] finished tweaking crates.io crate t-ssh-client 0.2.1
[INFO] tweaked toml for crates.io crate t-ssh-client 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate t-ssh-client 0.2.1 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-encoding v2.3.2
[INFO] [stderr]   Downloaded thrussh-keys v0.21.0
[INFO] [stderr]   Downloaded thrussh-libsodium v0.2.1
[INFO] [stderr]   Downloaded yasna v0.4.0
[INFO] [stderr]   Downloaded bcrypt-pbkdf v0.6.2
[INFO] [stderr]   Downloaded blowfish v0.8.0
[INFO] [stderr]   Downloaded base64ct v1.5.1
[INFO] [stderr]   Downloaded tokio-stream v0.1.9
[INFO] [stderr]   Downloaded thrussh v0.33.5
[INFO] [stderr]   Downloaded libsodium-sys v0.2.7
[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] c346c8c16517c46dc1e5d124a5a6ff4d6b1e0c2d0114f16178405bf14bcf86bd
[INFO] running `Command { std: "docker" "start" "-a" "c346c8c16517c46dc1e5d124a5a6ff4d6b1e0c2d0114f16178405bf14bcf86bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c346c8c16517c46dc1e5d124a5a6ff4d6b1e0c2d0114f16178405bf14bcf86bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c346c8c16517c46dc1e5d124a5a6ff4d6b1e0c2d0114f16178405bf14bcf86bd", kill_on_drop: false }`
[INFO] [stdout] c346c8c16517c46dc1e5d124a5a6ff4d6b1e0c2d0114f16178405bf14bcf86bd
[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] a20ff42e027ec56b3bdd2b1c0186af26fdd43d67cfae1d9d2d98cc5f74e70e61
[INFO] running `Command { std: "docker" "start" "-a" "a20ff42e027ec56b3bdd2b1c0186af26fdd43d67cfae1d9d2d98cc5f74e70e61", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking base64ct v1.5.1
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking password-hash v0.2.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling libsodium-sys v0.2.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling serde_derive v1.0.138
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking pbkdf2 v0.8.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking blowfish v0.8.0
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking block-modes v0.8.1
[INFO] [stderr]     Checking bcrypt-pbkdf v0.6.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking cryptovec v0.6.1
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking yasna v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]     Checking thrussh-libsodium v0.2.1
[INFO] [stderr]     Checking thrussh-keys v0.21.0
[INFO] [stderr]     Checking thrussh v0.33.5
[INFO] [stderr]     Checking t-ssh-client v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 53s
[INFO] running `Command { std: "docker" "inspect" "a20ff42e027ec56b3bdd2b1c0186af26fdd43d67cfae1d9d2d98cc5f74e70e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20ff42e027ec56b3bdd2b1c0186af26fdd43d67cfae1d9d2d98cc5f74e70e61", kill_on_drop: false }`
[INFO] [stdout] a20ff42e027ec56b3bdd2b1c0186af26fdd43d67cfae1d9d2d98cc5f74e70e61
[INFO] checking t-ssh-client-0.2.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate t-ssh-client 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate t-ssh-client 0.2.1 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 crates.io crate t-ssh-client 0.2.1
[INFO] finished tweaking crates.io crate t-ssh-client 0.2.1
[INFO] tweaked toml for crates.io crate t-ssh-client 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate t-ssh-client 0.2.1 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] [stderr]     Blocking waiting for file lock on package cache
[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] cdb0d0339a6ef8826fbab44a2a1c91628bba0634b111b3cf09e3d78e8c3e535d
[INFO] running `Command { std: "docker" "start" "-a" "cdb0d0339a6ef8826fbab44a2a1c91628bba0634b111b3cf09e3d78e8c3e535d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdb0d0339a6ef8826fbab44a2a1c91628bba0634b111b3cf09e3d78e8c3e535d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb0d0339a6ef8826fbab44a2a1c91628bba0634b111b3cf09e3d78e8c3e535d", kill_on_drop: false }`
[INFO] [stdout] cdb0d0339a6ef8826fbab44a2a1c91628bba0634b111b3cf09e3d78e8c3e535d
[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] 024197988a202c8200d1f8ef99bb9fdb41c47e187d383a5661e1d2d2983244a7
[INFO] running `Command { std: "docker" "start" "-a" "024197988a202c8200d1f8ef99bb9fdb41c47e187d383a5661e1d2d2983244a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking base64ct v1.5.1
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking password-hash v0.2.3
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.138
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling libsodium-sys v0.2.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]     Checking blowfish v0.8.0
[INFO] [stderr]     Checking pbkdf2 v0.8.0
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bcrypt-pbkdf v0.6.2
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking block-modes v0.8.1
[INFO] [stderr]     Checking cryptovec v0.6.1
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking yasna v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]     Checking thrussh-libsodium v0.2.1
[INFO] [stderr]     Checking thrussh-keys v0.21.0
[INFO] [stderr]     Checking thrussh v0.33.5
[INFO] [stderr]     Checking t-ssh-client v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 01s
[INFO] running `Command { std: "docker" "inspect" "024197988a202c8200d1f8ef99bb9fdb41c47e187d383a5661e1d2d2983244a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "024197988a202c8200d1f8ef99bb9fdb41c47e187d383a5661e1d2d2983244a7", kill_on_drop: false }`
[INFO] [stdout] 024197988a202c8200d1f8ef99bb9fdb41c47e187d383a5661e1d2d2983244a7